https://ignition-control-module.info Thu, 30 Apr 2026 13:41:41 +0000 en-US hourly 1 https://wordpress.org/?v=4.1.1 https://ignition-control-module.info/2026/01/how-to-test-fuel-injection-and-ignition-signals-of-an-ecu-on-the-workbench-step-by-step-guide/ https://ignition-control-module.info/2026/01/how-to-test-fuel-injection-and-ignition-signals-of-an-ecu-on-the-workbench-step-by-step-guide/#comments Fri, 16 Jan 2026 14:24:33 +0000 https://ignition-control-module.info/2026/01/how-to-test-fuel-injection-and-ignition-signals-of-an-ecu-on-the-workbench-step-by-step-guide/ ]]> https://ignition-control-module.info/2026/01/how-to-test-fuel-injection-and-ignition-signals-of-an-ecu-on-the-workbench-step-by-step-guide/feed/ 0 https://ignition-control-module.info/2025/11/symptoms-of-a-bad-ignition-control-module-complete-step-by-step-guide/ https://ignition-control-module.info/2025/11/symptoms-of-a-bad-ignition-control-module-complete-step-by-step-guide/#comments Thu, 20 Nov 2025 11:09:48 +0000 https://ignition-control-module.info/2025/11/symptoms-of-a-bad-ignition-control-module-complete-step-by-step-guide/ ]]> https://ignition-control-module.info/2025/11/symptoms-of-a-bad-ignition-control-module-complete-step-by-step-guide/feed/ 0 https://ignition-control-module.info/2025/06/msd-red-digital-6al-ignition-control-module-2-step-rev-controller-6425-8732/ https://ignition-control-module.info/2025/06/msd-red-digital-6al-ignition-control-module-2-step-rev-controller-6425-8732/#comments Mon, 30 Jun 2025 03:33:42 +0000 https://ignition-control-module.info/2025/06/msd-red-digital-6al-ignition-control-module-2-step-rev-controller-6425-8732/







MSD Red Digital 6AL Ignition Control Module & 2 Step Rev Controller 6425 8732. Red Digital 6AL Ignition Control Module & 2 Step Rev Controller. Part #: 6425 Built-In Adjustable Rev-Limit Control Compatible with 4, 6, or 8 Cylinder Engines – Built-in LED for System Checks. The MSD 6AL Ignition Control set the standards that other ignitions strive to reach. In fact, you’ll find ignitions from other companies that carry the 6AL name (and in some cases, the same part number). MSD raised the bar even higher with the revised Digital 6AL Ignition Control! The wiring of the Digital 6AL is routed out one end of the unit through a sealed and locking connector. This eases installation and keeps your wiring looking neat and clean. The rev-limiter of the 6AL is located right on top of the housing for easy access to the two rotary dials to set the limit in 100 rpm increments. Inside the Digital 6AL, you’ll find a microprocessor that monitors and controls every firing and rev limit. The circuits are updated with efficient components that help the ignition produce more power while drawing less current! In fact, the Digital 6AL delivers over 530 volts to the coil with up to 135mJ of spark energy for every firing! Increased output combined with MSD’s proven multiple spark series is a win-win situation! The Digital 6AL is supplied with the wiring harness and the components you’ll need for installation. The 6AL is also supplied with vibration mounts. Both ignitions are compatible on 4, 6, or 8-cylinder engines with 12-volt, negative ground electrical systems. They’ll accept trigger inputs from breaker points, amplifiers, and magnetic pickups. High output with 530 volts and 135mJ of spark energy. Efficient components use less current to produce more power. Set an rpm limit with two rotary dials in 100 rpm increments. Built-in LED for system checks. All wires exit through a locked, sealed connector. Compatible with 4, 6 or 8-cylinder engines. 7 Amp per 1,000 RPM. Primary Voltage: 520-540 Volts. Product Type: Digital 6AL Ignition Control Box. RPM Range: 11,000 RPM. Secondary Voltage: 45,000 Volts. Spark Energy: 135-145 mJ per spark. Voltage Required: 12-15 Volts, 7 Volt Start. Weight and Size: 1.7 lbs. 8″L x 4″W x 1.825H. This part is legal for sale and use on Emissions Controlled Vehicles, in all 50 states, when used in accordance with the manufacturers application guide because it has a California Air Resources Board (CARB) Executive Order (EO) number. The following vehicles are considered Emissions Controlled Vehicles: 1966 and newer U. Manufactured California Certified vehicles 1968 and newer U. Manufactured Federally Certified vehicles 1968 and newer Foreign manufactured vehicle. Part #: 8732 MSD 2-STEP REV CONTROL – FOR DIGITAL 6AL PN 6425 or 64253 Only. Since the new Digital 6AL Ignition uses rotary dials to adjust the rev limiter, their engineers were tasked with developing a 2-Step Rev Control that could be added to give racers the ability to switch to a low rpm limit to use on the starting line. There are two easy to read rotary dials that let you set the launch rpm in 100 rpm increments. There is an activation wire that connects to the transbrake, a clutch switch or to the line-lock to activate the low rpm limit. When that switch is released, the low rpm limit is turned off and the car launches hard! The 2-Step is also digitally controlled and connects to the Digital 6AL’s gray tach output wire. For use with Digital 6AL PN 6425 or 64253 only. Product Type: RPM Control. This part is legal for sale or use on Racing Use Only Vehicles The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street. WARNING: It is against the law to install this part on an Emissions Controlled Vehicle. This part is universal.

]]> https://ignition-control-module.info/2025/06/msd-red-digital-6al-ignition-control-module-2-step-rev-controller-6425-8732/feed/ 0 https://ignition-control-module.info/2025/04/msd-misbehaving-a-step-by-step-troubleshooting-guide-for-your-msd-ignition-box/ https://ignition-control-module.info/2025/04/msd-misbehaving-a-step-by-step-troubleshooting-guide-for-your-msd-ignition-box/#comments Sun, 13 Apr 2025 13:52:34 +0000 https://ignition-control-module.info/2025/04/msd-misbehaving-a-step-by-step-troubleshooting-guide-for-your-msd-ignition-box/ ]]> https://ignition-control-module.info/2025/04/msd-misbehaving-a-step-by-step-troubleshooting-guide-for-your-msd-ignition-box/feed/ 0 https://ignition-control-module.info/2023/03/rcm-relay-control-module-step-by-step-chrysler-crossfire-mercedes-mystery-no-start/ https://ignition-control-module.info/2023/03/rcm-relay-control-module-step-by-step-chrysler-crossfire-mercedes-mystery-no-start/#comments Wed, 08 Mar 2023 04:16:27 +0000 https://ignition-control-module.info/2023/03/rcm-relay-control-module-step-by-step-chrysler-crossfire-mercedes-mystery-no-start/ ]]> https://ignition-control-module.info/2023/03/rcm-relay-control-module-step-by-step-chrysler-crossfire-mercedes-mystery-no-start/feed/ 0 https://ignition-control-module.info/2021/09/msd-ignition-8739-rpm-controls-two-step-module-selector-2/ https://ignition-control-module.info/2021/09/msd-ignition-8739-rpm-controls-two-step-module-selector-2/#comments Sat, 25 Sep 2021 13:53:10 +0000 http://ignition-control-module.info/2021/09/msd-ignition-8739-rpm-controls-two-step-module-selector-2/





MSD Ignition 8739 RPM Controls Two Step Module Selector. RPM Controls Two Step Module Selector. RPM Controls Two Step Module Selector; Allows You To Choose Two Different RPM Limits That Can Be Activated At Different Times. Allows a launch rev limiter and a high speed rev limiter. The MSD module selectors allow you to choose two or three different rpm limits that can be activated at different times. With this ability, the possibilities are endless. As an example, we’ll use a drag car with a three step module selector plugged into the rpm socket of a 7AL-2 ignition. The different rpm modules are activated when 12 volts are applied to a corresponding wire. By connecting one wire to the line-lock circuit, one module will be activated during the burnout. This helps keep tire temperatures consistent. When the line-lock button is released, the limit turns off. When you’re on the starting line, you can activate the second limit through the clutch or trans switch. This provides a steady and consistent rpm for firm hole shots every time. When no modules are selected, the remaining high limit is active to protect the engine in the event of driveline failure. The two step works the same, but only with two different limits. The module selectors can also be used with an MSD timing control. By plugging the selector into a retard module socket, you can activate different retard amounts at select times. This is a great feature for engines being upgraded to a multi-stage nitrous system. The team at MSD is no different as we strive to deliver the products you need to meet your performance goals. We continue to innovate and invent components and technology that deliver performance and reliability with products that are easy to use and install. Over the course of 40-plus years, MSD Performance has been driving the development of innovative components that helped shape the way our cars race and perform. From super speedways to road courses, land speed racing to top fuel dragsters, and of course your traditional hot rod, MSD has provided the components to fire nearly anything in motorsports. Early on, MSD focused squarely on ignition systems with revolutionary products like the multiple sparking CD ignition, timing and rev controls, billet aluminum distributors and the Pro-Mag, an incredible breakthrough in power and endurance. Today MSD is developing electronics for your entire powertrain. The Atomic EFI systems for the LS engine platform and throttle body are now complemented with a transmission controller. Our DynaForce Starters and Alternators ensure that your engine cranks over to fire up and the Alternators keep it charged. MSD is poised to deliver components that work and communicate together to provide performance and value. We carry performance and replacement parts, along with every consumer item youll ever need. Our goal is to exceed your expectations. And weve built a system to do just that. And we guarantee it. Our company combines hard-core drag racers and auto enthusiasts with tech-savvy engineers and developers all car lovers to create a webstore that gives you an unmatched shopping experience and we deliver it fast. Unlike traditional brick-and-mortar retail outlets, our inventory isnt limited to what we can pack into a storefront or what a counter clerk may be able to find. A better shopping experience, for every product for every car, whenever you order. All orders are immediately sent to our distribution centers which may impact your ability to cancel the order once it’s placed. Many parts are stocked in more than one warehouse location. PartsHawk stands behind every item we sell. Occasionally, there may be an issue with your item or your order and we will do our best to ensure you are 100% satisfied. Large Parcel Items : For large items bumpers, side steps, bed covers, etc. All accessories & hardware. Any documents and instructions. Placing an order outside the US is easy! At times there is a delay in the carriers tracking for updates. Please allow up to 24 hours for your tracking to update. If you still do not see any movement, please contact our Customer Service Department and we will be happy to assist. Please feel free to reach out to us and we will provide additional details. Do I have to be there to sign for my package? There is no additional cost to you for this service. Leave by back door, leave with neighbor, place in the planter on the left of my garage, etc. We recommend leaving a note for the carrier on the door nearest to the street as we do not have a way to communicate those requests for you. How can I get a copy of my receipt or invoice? How do I know if this part will fit my vehicle? Check the vehicle compatibility guide above or just reach out to us. Thank You For Shopping. The item “MSD Ignition 8739 RPM Controls Two Step Module Selector” is in sale since Sunday, December 20, 2020. This item is in the category “eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Other”. The seller is “partshawk” and is located in Miami, Florida. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Dominican republic, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Uruguay, Russian federation.

• Brand: MSD
• Country/Region of Manufacture: United States
• Manufacturer Part Number: 8739
• MPN: 8739

]]> https://ignition-control-module.info/2021/09/msd-ignition-8739-rpm-controls-two-step-module-selector-2/feed/ 0 https://ignition-control-module.info/2020/12/msd-64213-black-6al-2-ignition-control-box-with-built-in-2-step-rev-limiter/ https://ignition-control-module.info/2020/12/msd-64213-black-6al-2-ignition-control-box-with-built-in-2-step-rev-limiter/#comments Tue, 29 Dec 2020 23:46:32 +0000 http://ignition-control-module.info/2020/12/msd-64213-black-6al-2-ignition-control-box-with-built-in-2-step-rev-limiter/




MSD 64213 Black 6AL-2 Ignition Control Box With Built-In 2 Step Rev-Limiter. MSD 64213 Black 6AL-2 Ignition Control Box With Built-In 2 Step Rev-Limiter Rotary Dials. MSD is excited to announce the next generation of 6-Series ignition controls the 6AL-2! The ignition control combines a new housing, new digital controls and more power in a sleek package. Inside the new cast aluminum housing you’ll find an advanced micro-controller that manages the built-in two step rev-limiter. The spark output of the new box has been turned up to 535 volts of primary voltage with spark energy reaching up to 135 millijoules! The multiple sparks of the 6AL-2 burn in the cylinder for 20 degrees of crankshaft rotation to ensure complete combustion. Two more great features are the rev limits! There are two rev limiters; one for high end overrev protection and another you can activate off a clutch or transbrake to set a launch limit. This feature will help your car blast off the starting line! Adjustments are made via four rotary dials for 100 rpm increment control! The all new capacitive discharge ignition will easily connect to nearly any 12-volt negative ground distributor system. All new housing, same reliable digital circuitry and performance. Built-in 2-Step rev control adjustable with rotary dials. Higher output with up to 135mJ of spark energy. Managed by an efficient digital processor. 7 Amp per 1,000 RPM. Primary Voltage: 535 Volts. Product Type 6AL-2 Ignition Control Box. RPM Range 12,500 RPM with 14.4 Volts. Secondary Voltage 45,000 Volts. Spark Energy 135 mJ per spark. Voltage Required 12-18 Volts, Negative Ground. Weight and Size 3 lbs. 7″L x 4″W x 2H. We value your business and we are not satisfied until you are. Rudy’s Performance Parts ships products from multiple warehouses across the country in order to get your products to you the quickest way possible. We are not able to send ANY race use products to the state of California. According to the EPA Clean Air Act, they are illegal for use on any Federal, State, or Local public highways and illegal use is punishable by the penalties enacted by the mentioned laws. Rudy’s Performance Parts does not condone or promote illegal use of these products. All of our parts and accessories are returnable and refundable. The item in which you are returning MUST be unused, uninstalled, in the original condition, and in the original packaging. If you are returning an item due to an error caused by Rudys Performance Parts or its business partners i. If you are sending an item back, we recommend using a service with tracking and signature confirmation. This product is NOT for sale or use in California. The item “MSD 64213 Black 6AL-2 Ignition Control Box With Built-In 2 Step Rev-Limiter” is in sale since Wednesday, October 9, 2019. This item is in the category “eBay Motors\Parts & Accessories\Car & Truck Parts\Ignition Systems\Electronic Ignition”. The seller is “rudys_performance_parts” and is located in Chapel Hill, North Carolina. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Uruguay.

• Interchange Part Number: Motors Ford Lincoln Merury Chrysler Dodge Jeep Ram
• California Prop 65 Warning: WARNING: Cancer & Reproductive Harm
• Type: Ignition Coil
• Manufacturer Part Number: 64213
• Brand: MSD

]]> https://ignition-control-module.info/2020/12/msd-64213-black-6al-2-ignition-control-box-with-built-in-2-step-rev-limiter/feed/ 0 https://ignition-control-module.info/2020/12/msd-6421-red-6al-2-ignition-control-box-with-built-in-2-step-rev-limiter-2/ https://ignition-control-module.info/2020/12/msd-6421-red-6al-2-ignition-control-box-with-built-in-2-step-rev-limiter-2/#comments Fri, 18 Dec 2020 07:49:33 +0000 http://ignition-control-module.info/2020/12/msd-6421-red-6al-2-ignition-control-box-with-built-in-2-step-rev-limiter-2/




MSD 6421 Red 6AL-2 Ignition Control Box With Built-In 2 Step Rev-Limiter. MSD 6421 Red 6AL-2 Ignition Control Box With Built-In 2 Step Rev-Limiter Rotary Dials. MSD is excited to announce the next generation of 6-Series ignition controls the 6AL-2! The ignition control combines a new housing, new digital controls and more power in a sleek package. Inside the new cast aluminum housing you’ll find an advanced micro-controller that manages the built-in two step rev-limiter. The spark output of the new box has been turned up to 535 volts of primary voltage with spark energy reaching up to 135 millijoules! The multiple sparks of the 6AL-2 burn in the cylinder for 20 degrees of crankshaft rotation to ensure complete combustion. Two more great features are the rev limits! There are two rev limiters; one for high end overrev protection and another you can activate off a clutch or transbrake to set a launch limit. This feature will help your car blast off the starting line! Adjustments are made via four rotary dials for 100 rpm increment control! The all new capacitive discharge ignition will easily connect to nearly any 12-volt negative ground distributor system. All new housing, same reliable digital circuitry and performance. Built-in 2-Step rev control adjustable with rotary dials. Higher output with up to 135mJ of spark energy. Managed by an efficient digital processor. 7 Amp per 1,000 RPM. Primary Voltage: 535 Volts. Product Type 6AL-2 Ignition Control Box. RPM Range 12,500 RPM with 14.4 Volts. Secondary Voltage 45,000 Volts. Spark Energy 135 mJ per spark. Voltage Required 12-18 Volts, Negative Ground. Weight and Size 3 lbs. 7″L x 4″W x 2H. We value your business and we are not satisfied until you are. Rudy’s Performance Parts ships products from multiple warehouses across the country in order to get your products to you the quickest way possible. We are not able to send ANY race use products to the state of California. According to the EPA Clean Air Act, they are illegal for use on any Federal, State, or Local public highways and illegal use is punishable by the penalties enacted by the mentioned laws. Rudy’s Performance Parts does not condone or promote illegal use of these products. All of our parts and accessories are returnable and refundable. The item in which you are returning MUST be unused, uninstalled, in the original condition, and in the original packaging. If you are returning an item due to an error caused by Rudys Performance Parts or its business partners i. If you are sending an item back, we recommend using a service with tracking and signature confirmation. This product is NOT for sale or use in California. The item “MSD 6421 Red 6AL-2 Ignition Control Box With Built-In 2 Step Rev-Limiter” is in sale since Wednesday, October 9, 2019. This item is in the category “eBay Motors\Parts & Accessories\Car & Truck Parts\Ignition Systems\Electronic Ignition”. The seller is “rudys_performance_parts” and is located in Chapel Hill, North Carolina. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Uruguay.

• Interchange Part Number: Motors Ford Lincoln Merury Chrysler Dodge Jeep Ram
• California Prop 65 Warning: WARNING: Cancer & Reproductive Harm
• Type: Ignition Coil
• Manufacturer Part Number: 6421
• Brand: MSD

]]> https://ignition-control-module.info/2020/12/msd-6421-red-6al-2-ignition-control-box-with-built-in-2-step-rev-limiter-2/feed/ 0 https://ignition-control-module.info/2020/11/furnace-troubleshooting-step-by-step-with-multi-meter/ https://ignition-control-module.info/2020/11/furnace-troubleshooting-step-by-step-with-multi-meter/#comments Sun, 29 Nov 2020 20:37:29 +0000 http://ignition-control-module.info/2020/11/furnace-troubleshooting-step-by-step-with-multi-meter/ ]]> https://ignition-control-module.info/2020/11/furnace-troubleshooting-step-by-step-with-multi-meter/feed/ 0 https://ignition-control-module.info/2020/10/msd-6421-red-6al-2-ignition-control-box-with-built-in-2-step-rev-limiter/ https://ignition-control-module.info/2020/10/msd-6421-red-6al-2-ignition-control-box-with-built-in-2-step-rev-limiter/#comments Fri, 02 Oct 2020 05:31:14 +0000 http://ignition-control-module.info/2020/10/msd-6421-red-6al-2-ignition-control-box-with-built-in-2-step-rev-limiter/


MSD 6421 Red 6AL-2 Ignition Control Box With Built-In 2 Step Rev-Limiter. MSD 6421 Red 6AL-2 Ignition Control Box With Built-In 2 Step Rev-Limiter Rotary Dials. MSD is excited to announce the next generation of 6-Series ignition controls the 6AL-2! The ignition control combines a new housing, new digital controls and more power in a sleek package. Inside the new cast aluminum housing you’ll find an advanced micro-controller that manages the built-in two step rev-limiter. The spark output of the new box has been turned up to 535 volts of primary voltage with spark energy reaching up to 135 millijoules! The multiple sparks of the 6AL-2 burn in the cylinder for 20 degrees of crankshaft rotation to ensure complete combustion. Two more great features are the rev limits! There are two rev limiters; one for high end overrev protection and another you can activate off a clutch or transbrake to set a launch limit. This feature will help your car blast off the starting line! Adjustments are made via four rotary dials for 100 rpm increment control! The all new capacitive discharge ignition will easily connect to nearly any 12-volt negative ground distributor system. All new housing, same reliable digital circuitry and performance. Built-in 2-Step rev control adjustable with rotary dials. Higher output with up to 135mJ of spark energy. Managed by an efficient digital processor. 7 Amp per 1,000 RPM. Primary Voltage: 535 Volts. Product Type 6AL-2 Ignition Control Box. RPM Range 12,500 RPM with 14.4 Volts. Secondary Voltage 45,000 Volts. Spark Energy 135 mJ per spark. Voltage Required 12-18 Volts, Negative Ground. Weight and Size 3 lbs. 7″L x 4″W x 2H. The item “MSD 6421 Red 6AL-2 Ignition Control Box With Built-In 2 Step Rev-Limiter” is in sale since Wednesday, April 29, 2020. This item is in the category “eBay Motors\Parts & Accessories\Car & Truck Parts\Ignition Systems\Electronic Ignition”. The seller is “sampsonperformance” and is located in Circleville, Ohio. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Uruguay.

• Interchange Part Number: Motors Ford Lincoln Merury Chrysler Dodge Jeep Ram
• California Prop 65 Warning: WARNING: Cancer & Reproductive Harm
• Type: Ignition Coil
• Manufacturer Part Number: 6421
• Brand: MSD

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