GMC C25/C2500 Suburban Spark Plugs

The U-Groove Spark Plug features a patented U-groove ground electrode design that enhances ignitability, allowing for leaner fuel mixtures and improved engine efficiency. Crafted with precision machine-rolled threads, it minimizes the risk of seizing or cross-threading in delicate aluminum heads, ensuring a secure and hassle-free installation. Built with a nickel center electrode tip and a tapered seat type, this spark plug delivers optimal performance and compatibility across a wide range of vehicles, including classic and collector cars. Its durability is unmatched, lasting twice as long as most conventional plugs, and each unit is 100 percent pre-fired to guarantee reliable operation. Whether you’re maintaining a daily driver or restoring a vintage gem, this spark plug offers exceptional value with its OE-level performance and extended lifespan.

Product Features:

• Patented U-groove ground electrode design fires leaner mixtures than conventional plugs
• Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
• Wide range of part numbers for thousands of applications, including classic and collector cars
• Lasts twice as long as most conventional plugs
• 100 percent pre-fired to assure reliable operation
• U-Groove Conventional

The Double Platinum Spark Plug is engineered for exceptional durability and performance, making it a top choice for distributor-less ignition system (DIS) engines. Featuring a platinum-to-platinum design, it minimizes gap erosion and reduces misfires, ensuring a longer service life compared to copper and standard platinum plugs. Its yttrium-enhanced ground electrode delivers superior heat transfer, allowing it to withstand high temperatures and pressures for extended durability. The high alumina ceramic insulator optimizes thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for reliable operation. With a mid-projection center electrode and tapered seat type, this performance-grade spark plug is designed to deliver consistent ignition and efficiency. Both the center and ground electrode tips are crafted from platinum, ensuring robust functionality and reliability. Ideal for drivers seeking enhanced engine performance and longevity, this spark plug is built to meet the demands of modern engines.

Product Features:

• Engineered with a platinum-to-platinum design that prevents gap erosion, extending the life of the spark plug.
• The yttrium-Enhanced Ground Electrode delivers superior heat transfer that delivers more durability under high temps and pressure for greater life.
• Its high alumina ceramic insulator provides optimum thermal conductivity and dielectric strength.
• The multi-rib insulator prevents flash-over.
• Designed with a mid-projection center electrode and tapered seat type to ensure consistent ignition and improved engine efficiency.

The U-Groove Spark Plug with its patented U-groove ground electrode design ensures superior ignitability, allowing your engine to fire leaner mixtures for enhanced efficiency and performance. Crafted with precision machine-rolled threads, it minimizes the risk of seizing or cross-threading, making it ideal for delicate aluminum heads. Built to last twice as long as conventional plugs, this spark plug is 100% pre-fired to guarantee reliable operation from the start. Its nickel center electrode tip and flat seat type ensure consistent performance across a wide range of applications, including classic and collector cars. With a comprehensive selection of part numbers available, this spark plug delivers OE-level performance and durability, making it a dependable choice for maintaining your engine’s peak performance.

Product Features:

• Patented U-groove ground electrode design fires leaner mixtures than conventional plugs
• Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
• Wide range of part numbers for thousands of applications, including classic and collector cars
• Lasts twice as long as most conventional plugs
• 100 percent pre-fired to assure reliable operation
• U-Groove Conventional

Spark Plug: Enhanced Durability & Optimized Performance is engineered to meet strict Ford standards, ensuring original equipment reliability and performance. Designed with a fine wire platinum center electrode and nickel ground electrode tip, these spark plugs deliver precise ignition while resisting oxidation and arc erosion. Perfectly matched to specific engines, they enhance durability, eliminate misfires, reduce fuel consumption, and optimize emissions. The multi-rib insulator protects against misfires, while service intervals of up to 100,000 miles provide long-lasting value. Backed by Motorcraft’s Service Parts Warranty, these spark plugs are an exact fit for Ford, Lincoln, and Mercury vehicles, making them the ideal choice for maintaining factory performance. Crafted with high-quality materials, they are suitable for a wide range of domestic and import cars and trucks, ensuring reliable performance and preventing false check engine lights. Motorcraft Spark Plugs are the trusted solution for drivers seeking confidence and efficiency in their ignition system.

Product Features:

• Motorcraft spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption and optimize emissions.
• Backed by Motorcraft’s Service Parts Warranty
• Exact fit for Ford, Lincoln and Mercury vehicles
• Resistant to oxidation and arc erosion.
• Multi-rib insulator protects against misfire.
• Service intervals of up to 100,000 miles.
• Motorcraft Spark Plugs are designed with high quality materials to provide reliable performance for almost any application.
• Motorcraft Spark Plugs are what was in the vehicle when it was manufactured
• Motorcraft ignition components help prevent false check engine lights.

ACDelco Gold (Professional) RAPIDFIRE Spark Plugs are a high quality alternative to Original Equipment (OE) parts. These RAPIDFIRE Single Platinum Performance Spark Plugs are designed for everyday use and are a high quality replacement for many vehicles on the road today. These premium aftermarket spark plugs have high-quality suppressors that help prevent misfiring, an improved plug to boot seal, and a pure copper core for greater durability. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.

Product Features:

• Solid state suppressor, with two-piece glass and brass seal, can help reduce radio frequency interference, regulates spark energy for long electrode life, and helps protect against high combustion pressures
• Pure copper core provides great heat transfer and helps maximize plug durability
• Platinum on center electrode enables superior spark characteristics and can reduce voltage requirements of the ignition system
• Ribless insulator helps optimize plug to boot seal
• Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
• Premium aftermarket replacement part
• Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
• High-Quality Suppressors: ACDelco Gold RAPIDFIRE Spark Plugs feature high-quality suppressors that help prevent misfiring, ensuring smooth and reliable engine performance.
• Single Platinum Performance: Designed with a platinum center electrode tip, these spark plugs offer enhanced durability and consistent performance for everyday use.

Copper Plus spark plug delivers reliable performance and durability, making it an ideal choice for small engines. Featuring a copper core center electrode, it ensures precise heat control and enhanced conductivity, promoting longer life and consistent wear. Built to ISO and SAE Standards, this OE-type replacement plug resists fouling and offers superior corrosion resistance, ensuring dependable operation in various conditions. The nickel-tipped center and ground electrodes further enhance its durability and performance, while the flat seat design ensures a secure fit. Whether you’re maintaining your equipment or replacing worn-out parts, this spark plug provides exceptional value with its proven performance and robust construction.

Product Features:

• Resists fouling
• Superior corrosion resistance
• Dependable and proven performance
• Increased conductivity and heat control for good overall wear

ACCEL’s patented race proven spark plugs in a Shorty configuration. The overall length has been reduced 3/16 in to 3/8 in (depending on the specific spark plug) to gain critical air gap between the spark plug boot and the exhaust manifold or header tube. This helps eliminate burning the spark plug boot or dimpling the header tube. The shorter spark plug length also can make it easier to install an remove the spark plugs in certain applications where there is not a lot of room to fit a socket or move a wrench around. ACCEL Shorty Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL Shorty Spark Plugs are capable allowing you to open the gap exposing a larger flame kernel or close it if needed for high boost applications. All ACCEL Shorty Spark Plugs have machine rolled threads allowing for a more precise thread engagement and torque retention.

Product Features:

• Shorty Spark Plugs For Tubular Exhaust Headers
• Eliminates Dimpling Headers For Added Clearance
• Improves Spark Plug Access To Fit Socket Or Wrench
• Shorter Overall Plug Length Vs. OE Style Plug
• Copper Core Center Electrode
• Projected Tip
• Helps Eliminate Burned Spark Plug Boots
• Shorty Header Spark Plug

The Copper Plus spark plug delivers dependable performance and durability, making it an ideal choice for maintaining your engine’s efficiency. Featuring a copper core center electrode, it ensures precise heat control for extended lifespan and consistent wear. Its nickel center electrode tip and flat seat design enhance reliability while meeting ISO and SAE Standards for proven performance. Built with superior corrosion resistance, this spark plug is designed to withstand harsh conditions, ensuring long-term functionality. As a standard replacement grade type with a resistor, it offers compatibility with a wide range of vehicles. Whether you’re looking for improved conductivity or reliable ignition, this spark plug provides excellent value and performance for your engine’s needs.

Product Features:

• Copper Plus – Dependable Performance and Durability
• Copper core center electrode allows for accurate control of heat range for longer life
• Superior corrosion resistance
• Built to ISO and SAE standards for proven performance
• Built to ISO and SAE standards for proven performance
• Reliable Nickel Center Electrode Tip: Featuring a nickel center electrode tip and flat seat type, this spark plug enhances reliability and helps maintain your engine’s efficiency.

Set includes terminals for engines with early type (socket) and late type (HEI spark plug top) distributor caps. 90? boots and terminals factory installed on one end.

Product Features:

• Extra Long 8.5mm Wires So You Can Cut To Your Designed Length
• Incl. both socket-style and spark plug-style boots and terminals
• Includes Mini-Stripper-Crimper For Factory Style Crimps
• Includes: Wires/90 Degree Socket And Plug Style Boots/Terminals
• Durable outer sleeve is a proprietary compound for resistance to high heat or abrasion
• Stainless steel terminals feature dual crimp tabs to grip wire conductor and outer jacket separately

The traditional ACCEL combination of yellow wire and red spark plug boots has been added to these SuperStock Spiral Core 5000 Series wire sets, which feature color-matched wire and spark plug boots in blue, black, and red. With only 500 ohms/ft. of resistance, more ignition energy can reach the spark plug, producing a longer-lasting, hotter spark flame kernel. The results is higher performance through improved efficiency, quicker throttle response, and reduced emissions. This 8mm wire’s double silicone construction is rated to 550 degrees F. The high-gloss wire jacket resists moisture, chemicals, and heat extremes for longer life and great looks. The fiberglass braid adds greater pull strength and terminal retention, while the stainless steel spark plug terminals provide excellent long life, electrical conductivity, and corrosion resistance. Both universal and custom-fit applications are available for early and late model cars and trucks.

Product Features:

• 500 Ohms/ft Of Resistance
• 550 F Rated Silicone Jacket
• Stainless Steel Plug Terminals
• High RFI Suppression For Street And Strip Use
• Universal And Import Coverage
• High-strength Fiberglass Braid Construction
• Pre And Post HEI Vehicles
• 8mm High Gloss Silicone Jacket

ACCEL’s SuperStock 4000 series spark plug wire sets are designed to upgrade an OE ignition system for high-spark delivery levels for street driven applications. The 450 degree F rated silicone jacket is extruded over a tightly woven, rugged fiberglass braid. The braid is applied over high dielectric strength EPDM (Ethylene Propylene Diene Monomer) inner insulation for ignition wire performance that exceeds SAE specifications.

Product Features:

• 7mm And 8mm High Gloss Silicone Jacket
• 450 F Rated Silicone Jacket
• Stainless Steel Plug Terminals
• RFI Suppression For Street Driven Applications
• Custom-fit Universal And Import Coverage
• High-strength Fiberglass Braid Construction
• Pre And Post HEI Vehicles

Performance upgrade for 7mm OE applications, silicone jacket with fiberglass braid EPDM insulation, tinned copper core, rated at 450 degrees Fahrenheit. Includes 8 blue extra-long wires, coil lead, silicone boots, zinc-plated steel terminals. Requires terminal and boot installation on distributor end.

Product Features:

• Silicone Spark Plug Boots
• 90 Degree Spark Plug Boot Angle
• 450 Degree Wire Temperature Rating
• Meets Or Exceeds OE Boot Temperature Rating

ACCEL’s SuperStock 4000 series spark plug wire sets are designed to upgrade an OE ignition system for high-spark delivery levels for street driven applications. The 450 degree F rated silicone jacket is extruded over a tightly woven, rugged fiberglass braid. The braid is applied over high dielectric strength EPDM (Ethylene Propylene Diene Monomer) inner insulation for ignition wire performance that exceeds SAE specifications.

Product Features:

• 7mm And 8mm High Gloss Silicone Jacket
• 450 F Rated Silicone Jacket
• Stainless Steel Plug Terminals
• RFI Suppression For Street Driven Applications
• Custom-fit Universal And Import Coverage
• High-strength Fiberglass Braid Construction
• Pre And Post HEI Vehicles

This spark plug non fouler is designed for easy installation on specified vehicles to protect spark plugs from fouling and damage. It is engineered for durability and reliable performance.

Product Features:

• Direct replacement – this spark plug non fouler is designed for easy installation to protect spark plugs from fouling and damage on specified vehicles
• Ideal solution – this non-fouler preserves spark plug life and is a reliable replacement for an original non-fouler that has failed due to corrosion
• Durable construction – 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