GMC R2500 Ignition and Tune-Up Products

Distributor Seal

For a long time, racers have known that one of the best things to do to an engine to improve its performance is to stabilize the ignition timing. The MSD flying magnet crank trigger system does exactly that by using magnets embedded in an aluminum wheel. The MSD flying magnet crank trigger uses four magnets secured in the aluminum trigger wheel that pass by a stationary non-magnetic pick-up to trigger the ignition. This flying magnet design produces accurate trigger signals and the non-magnetic pick-up cannot be false triggered. Each flying magnet crank trigger includes a two-piece mounting bracket for the non-magnetic pick-up that in most cases will work on either the passenger side or driver’s side of the engine (the SB Chrysler and SB Ford brackets mount on only one side). The adjustable bracket provides a wide range of timing adjustment and spacers are included. These systems will trigger MSD 6, 7, 8 and 10 series ignitions and all MSD timing accessories.

Product Features:

• 7 in. Diameter
• Absolutely the most accurate way to trigger the ignition.
• The non-magnetic pickup cannot be false triggered.
• Powerful magnets are embedded in a billet aluminum trigger wheel.

The Chevrolet HEI distributor is a favorite for muscle cars, street rods and even circle track racers. The integrated coil keeps under mount wiring clean, and for race cars, the idea of running one wire to the distributor keeps things simple. However, when it comes to performance, the stock HEI falls short. MSD answers the need for a strong, accurate and high performance HEI with our Pro-Billet HEI. The distributor is supplied with our digital HEI module and coil so there is plenty of spark energy combined with improved dwell and timing control. Tig welded on top of the distributor shaft is MSD’s adjustable centrifugal advance assembly. Three sets of springs and four stop bushings let you dial in up to 24 different timing curves to match your driving needs. Plus, there’s a vacuum advance for those concerned with economy. All of this is assembled around a precision and great looking CNC machined housing.

Product Features:

• Complete performance HEI distributor upgrade for Chevy V8 engines
• Supplied w/Brass Terminal Distributor Cap And Rotor
• Full Spark Energy Output To 9000 Rpm
• An 8.5 amp; single spark; inductive discharge ignition module
• Includes MSD PN[83647] and MSD HEI Coil PN[8225]
• Special oil tract improves lubrication to the dist./cam gear
• Nylon pads ensure smooth operation of the advance weights
• Advance weight pins are staked and tig welded to the plate

CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:

• Premium quality materials for longer service life
• Sealed connections (where applicable) to prevent environmental corrosion and performance issues
• Global coverage for import and/or domestic applications
• OE specified wire gauge to ensure a reliable electrical connection
• Designed to meet or exceed OE specifications in form, fit and function

Bosch Duraterm Glow Plug Technology With a long history of diesel fuel injection expertise and innovation, Bosch leads the way in glow plug technology with its patented Duraterm dual-control coil design. This technology utilizes a self-regulating system that reduces glow wait time by more than 50%. The patented dual control regulating and heating coil system effectively directs current draw, enabling the glow plug to reach higher temperatures more quickly for faster engine start-up. For vehicles with a post-glow control system, this advanced technology results in a post-glow heating phase which allows for more efficient overall engine performance.

Product Features:

• Glow plug reaches higher temperatures more quickly for fast engine start-up
• Regulating coil controls current draw for rapid heat-up of heating coil
• Heating coil provides rapid heat-up of the glow tube and quick start-up
• Glow tube material resists corrosion and vibration for long service life
• Fine-grained ceramic insulating powder provides superior electrical insulation and high thermal conductivity
• Twin Viton seals protect coils from exhaust gas damage for long life
• Connectors designed to OE specifications precise fit and easy installation

CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

ACDelco GM Original Equipment Ignition Knock (Detonation) Sensors monitor the engine for pinging or spark knock, and are GM-recommended replacements for your vehicle’s original components. These sensors create a voltage signal based on the vibrations caused by erratic air/fuel mixture combustion; the engine control module uses these signals to adjust the ignition timing and air/fuel mixture. These original equipment ignition knock sensors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:

• Sends signals to the engine control module (ECM) to adjust timing
• Helps prevent damage to the engine caused by pre-ignition
• GM-recommended replacement part for your GM vehicle’s original factory component
• Offering the quality, reliability, and durability of GM OE
• Manufactured to GM OE specification for fit, form, and function

The street fire spark plug wires feature a low resistance conductor that’s wrapped in a sleek and durable black sleeve. The terminals are covered in black boots that protect the conductor from engine heat to ensure spark delivery.

Product Features:

• Helically wound conductor suppresses electro and radio noise
• Kevlar core combination for great strength and durability
• Heavy Duty Terminals For Secure Connection
• 8mm silicone and synthetic jacket resists heat and abrasion
• 500 Ohms/ft. Resistance For Improved Spark Delivery And Power
• Silicone Boots Protect Against High Exhaust Temps

ACDelco Distributor Main Shaft is engineered to meet all the high standards set by the industry. It is known for its quality, performance and dependability and provides long, maintenance free life. This unit is put through a variety of tests under extreme and unusual conditions to ensure high quality and dependability.

Product Features:

• Features premium quality components
• Substandard cores are discarded
• Engineered to high standards
• Assured high quality and dependability
• Tested under extreme conditions

NGK ultra-low resistance mag core wire sets provide outstanding performance and durability. High-temp premium silicone outer jacket and inner EPDM/silicone insulation contain high voltage currents for excellent dielectric strength. Stainless steel winding

Product Features:

• PERFECT FIT FOR YOUR VEHICLE: Built to OEM tolerances with OE quality or better materials
• BUILT TO LAST: Outer Jacket built to withstand temperatures greater than 250 degrees C, inner insulation EPDM or silicone for best dielectric strength
• STAINLESS STEEL TERMINALS: Provide the highest possible retention to ensure positive connections through the life of the set
• CYLINDER LEAD ID: Cylinder lead identification tags where possible make installation easier

This rack and sector gear kit is designed to match the original components required to repair the steering column gear on specified vehicles. Made of quality components, this kit is engineered for reliable performance and durability.

Product Features:

• Direct replacement – this rack and sector gear kit is designed to match the original components required to repair the steering column gear on specified vehicles.
• Ideal solution – this kit is a reliable replacement for original components that are damaged or have failed due to wear
• Durable construction – this kit is made from quality components to ensure reliable performance and a long service life
• Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:

• Premium quality materials for longer service life
• Designed to meet or exceed OE specifications in form, fit and function
• Attaching hardware provided (where applicable)

CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:

• SAEJ2031 Class E cable resist heat (428 Deg. F), cold (-104 Deg. F), electrical interference, abrasion and oil.
• Stainless steel magnetic winding delivers maximum voltage to the spark plug for more powerful, and longer spark resulting in optimum engine performance while reducing the chance for misfire, and eliminating radio static.
• 100% Pure silicone external insulation resists oil penetration, for lifetime protection against wire set failure.
• EPDM inner insulation stops power-robbing voltage leaks.
• With Magnetic-impregnated Kevlar internal conductors – durable and break resistant
• Engineered to meet OEM tolerances using variable pitch wire winding, creating better resistance to electric magnetic interference (E.M.I resistance).
• Excellent interference suppression and consistent performance
• Easy lock terminals for more convenient installation.
• Thick silicon outer jacket for excellent heat resistance. Insulating EPDM based compound inner jacket helps minimize voltage drop and enhance durability.
• Broad coverage available for most vehicles on the road today
• Include grease pack to ensure easy installation and removal

CARQUEST Ignition Modules are built by an ignition systems manufacturer with expertise in the entire vehicle spark system.

Product Features:

• CARQUEST Ignition Modules creates and refines the timing of the engine using various sensors and readings throughout the spark system in order to create an efficiently running engine.
• CARQUEST Ignition Modules use current and voltage limiting circuitry in order to prevent the ignition coil from over voltage/current. Over voltages can allow for coils to create excessive heat which can damage to the ignition module resulting in check eng
• CARQUEST Ignition Modules are 100% individually tested for all product functionalities including over voltage, timing and dwell.

For more than a century, Delphi has been making the parts cars are born with. Delphi is proud of its OE heritage, and over the years they have used that experience to expand into a global aftermarket supplier.

Product Features:

• Delphi OE technology ignition products are validated to match the vehicles system
• OE quality replacement parts for the right fit , form and function
• Delphi coils provide OE performance, durability and electromagnetic capacity level requirements.

Denso Spark Plug Denso’s standard plugs have always offered a patented U-groove ground electrode producing for a larger, hotter spark. Copper core for better thermal conductivity. Machine rolled threads to reduce cross-threading and seizing . The plug insulator is constructed of purified alumina powder for extreme stress with 5 ribs to prevent flashover.

Product Features:

• U-Groove Ground Electrode Promotes Ignitability and Decreases Quenching
• Fully Projected Insulator Reduces Carbon Fouling
• Machine Rolled Threads Prevent Seizing or Cross Threading During Installation and Removal
• 100% Pre-Fired to Assure the Highest Quality Possible
• Purified Alumina Powder Insulator Provides Exceptional Strength and Thermal Conductivity
• Five Rib Insulator Prevents Flashover
• Copper-Glass Seal Bonds Center Electrode and Insulator for a Gas-Tight Seal

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Engineered for the sealing repair environment
• Validated for fit, form and function
• Unsurpassed quality you can trust

CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

GM Genuine Parts Distributor Ignition Pickups are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:

• Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
• GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
• GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
• GM regularly updates production and service part designs to integrate new materials and technologies

This gear test fixture features variable rpm and oil pressure control allowing MSD engineers the ability to maintain the exact conditions that they want for gear tests. Severe loads can be placed on the gear and the fixture can spin up to 10,000 rpm. Features increased outer hardened layer thickness (RC 55-60). Micro polished surface for smooth contact. Proprietary formulated ductile iron. Melonite QPQ coated reduces friction and initial wear. Interstitial carbide concentration improves wear resistance and running properties.

Product Features:

• Increased outer hardened layer thickness (RC 55-60)
• Micro Polished Surface For Smooth Contact
• Proprietary formulated ductile iron.
• Melonite QPQ coated reduces friction and initial wear
• Interstitial carbide improves wear resistance/running properties

CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:

• Premium quality materials for longer service life
• Sealed connections (where applicable) to prevent environmental corrosion and performance issues
• Global coverage for import and/or domestic applications
• OE specified wire gauge to ensure a reliable electrical connection
• Designed to meet or exceed OE specifications in form, fit and function

Carquest Premium ignition coils meet or exceed original equipment (OE) specifications and are developed by top OE/OES manufacturers to ensure superior performance. All of our Carquest Premium ignition coils are developed by IATF 16949 certified manufacturers for consistent durability and long-lasting performance. These ignition coils use high-quality components and will utilize optimized designs on applications where the OE ignition coil had frequent failures. We require stringent testing standards to ensure proper fit and performance for each application and stand behind our Carquest Premium ignition coils with an industry-leading warranty. Carquest Premium ignition coils are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:

• Built by IATF 16949 certified manufacturers for consistent durability
• Coil drivers match OE for current limit, electrostatic discharge (ESD) protection and multi-spark
• Segmented secondary bobbins to distribute high voltage and prevent shorting
• Extensive design validation testing to ensure long-lasting reliability
• 100% end-of-line tested to ensure proper performance
• Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

Built to match the original equipment in length and fit, ACDelco OES Ignition Wire Sets also offer a performance advantage over many aftermarket products.

Product Features:

• ACDelco OES wire sets are designed to be like Original in critical areas such as cable length and diameter, terminal design and insulator position
• Have broad coverage available for most vehicles on the road today from 1980 to present
• Provide a high degree of Radio Frequency Interference (RFI) suppression
• Are designed to offer fit, form and function for optimum performance
• Kevlar reinforced fiberglass core in select sets for increased strength
• Core sheathed in radio-static absorbent material for increased RFI suppression
• Wire-wound, stainless steel alloy conductor for maximum spark delivery and RFI suppression on most applications
• A layer of conductive heat-resistant latex for added durability
• Insulating rubber-based compound inner jacket helps minimize voltage drop and enhance durability
• Thick silicone outer jacket for excellent heat resistance
• Limited lifetime warranty*