Best Ignition Distributor Caps in 2026

Distributors cap and rotor kit features brass inserts and stainless steel rotor springs,designed to provide the best possible fit to ensure maximum conductivity between the distributor towers and spark plug wires,prevents arc through and crossfire.

Engineered specifically compatible with General Motors Vortec V8 engines,specifically compatible with General Motors Vortec V8 engines,Offering the quality,reliability,durability.

Direct replacement ready to install,including the cap and rotor kits.Fuel mileage and acceleration better than OE part.

REPLACEMENT DISTRIBUTOR CAP & IGNITION ROTOR KIT - A distributor cap is a removable component that is used in spark ignition systems to cover both the distributor and the rotor. It cover these components, and keep them from contamination, it is also responsible for helping to distribute electrical current from an ignition coil to a set of spark plugs. You will find that the contacts inside the cap wear easily and it must be replaced along with the rotor for the engine to run smoothly.

PREMIUM QUALITY - This mercruiser distributor cap is constructed from PBT and PET plastics for increased strength, stiffness. The solid brass contacts help settle wear related failures and provides excellent conductivity. We warranty it's high quality and all parts are hand inspected off the line before packaging and once again by our team before shipment.

REPLACES PART # - Mercruiser distributor cap and rotor 815407Q5, 815407A2, 18-5274, GLM 71790. This is for MerCruiser 4.3L V-6 Engines with Thunderbolt IV and V HEI ignitions, 1980s to early 2000s. Please check part numbers to ensure proper fit when you purchase.

Cap is made from a blend of PBT and PET plastics for increased strength, stiffness and resistance to warpage

Produced to meet Mercury Marine original equipment manufacturer specifications to best protect your MerCruiser engine

Solid brass inserts resist corrosion and electrical pitting for long service life

Replacement Distributor Cap Kit With Gasket - Distributes the high voltage spark from the coil to the correct cylinder required. Eventually they wear out over time like the spark plugs and wires resulting to poor electrical insulation which causes engine problems in the future therefore making it important to be part of the regular tune-up maintenance.

Compatible Replacement for Mercruiser GM V8 V8 308, 350, 454, 502 Engines With Thunderbolt IV & V Ignition System - Only works with HEI (High Energy Ignition) Systems and will not work with Point Ignition Systems. This replacement ignition coil by AA Ignition made by an original equipment supplier will get your 5.0L, 5.7L, 6.2L, 7.4L & 8.2L petrol engines with Thunderbolt 4 and 5 ignition systems.

Replaces Part# 18-5723, 805759Q3, 805759T3, 815407A2, 815407Q5, 185723, 185710, 185395, 71780, 929350, 64759K, RL5273, 18-5710, 18-5935. The distributor can easily be located usually beside the engine. If you are experiencing hard starting or losing power when the engine is hot or your boat is running erratically then your distributor may need a tune-up using this kit.

Parts are molded from high quality voltage insulating materials

Resists carbon tracking while ensuring that the ignition spark reaches the spark plug terminals

Low resistance brass is used for maximum voltage transfer

Brass terminals

Country of Origin: United States

High quality; voltage insulating material

Product Name: Distributor Cap and Rotor Kit; Material: Plastic,Metal; Package Content: 1 x Distributor Cap and Rotor Kit

Good materials, offering the quality, reliability, and durability, which promote longer product life.

Manufacturer Part Number: MSD 8406

CR6951BK 8-cylinder HEI OEM Distributor Cap, Rotor and Coil Cover Kit Black

Compatible with GM or A-Team Performance HEI distributor

Composed of high-strength polymer

【Replacement Distributor Cap and Rotor Kit】To ensure maximum firepower from your ignition with our replacement distributor cap and rotor kits. A key component to the traditional engine tune-up, distributor cap and rotor maintenance is essential to getting maximum spark from your ignition system. The distributor caps are stress-relieved immediately after molding to ensure dimensional stability.

【Fitment/Compatibility】Gmc C1500 C2500 K1500-K3500, Gmc C3500 Savana, Gmc G15 G1500 G25 G2500 G35 G3500, Gmc Safari, Gmc Sierra Silverado, 1995-2005 Gmc Sonoma, Gmc Yukon, Oldsmobile Bravada, Cadillac Escalade, Chevrolet Astro, Chevrolet Avalanche, 1995-2005 Chevrolet Blazer, 1996-1998 Chevrolet C1500-C3500, K1500 K2500 K3500, 1996-2002 Chevrolet G10 G1500 G20 G2500 G30 G3500, 1996-1999 Chevrolet P30, 1995-2005 Chevrolet S10, 1999-2007 Chevrolet Silverado/Suburban, Tahoe

【Reference Part Number】DR475, 10452458, 10452457, 10477311, 10493577, 3859019, 38590196, 8104524580, 8104773110, 8104935770, D319A, D321A, D328A

High quality replacement distributor cap and rotor

Fit for many famous vehicles brand distributors, please kindly ask us if you are not sure.

FITS FOR CHEVY, FORD, & MOPAR HEI AFTERMARKET DISTRIBUTORS

REPLACEMENT DISTRIBUTOR CAP & IGNITION ROTOR KIT - A distributor cap is a removable component that is used in spark ignition systems to cover both the distributor and the rotor. It cover these components, and keep them from contamination, it is also responsible for helping to distribute electrical current from an ignition coil to a set of spark plugs. You will find that the contacts inside the cap wear easily and it must be replaced along with the rotor for the engine to run smoothly.

PREMIUM QUALITY - This cap is constructed from PBT and PET plastics for increased strength, stiffness. The solid brass contacts help settle wear related failures and provides excellent conductivity. We warranty it's high quality and all parts are hand inspected off the line before packaging and once again by our team before shipment.

REPLACES PART # - 811635Q2, 811635Q1, 811635T2, 18-5280, 986643, 986651, Mallory 9-29320, GLM 71830. This is replacement for 3.0L 4cyl MerCruiser Engines made by General Motors with Delco EST ignition systems, 1990 and newer. Please check part numbers to ensure proper fit when you purchase.

New Ignition Distributor Cap, rotor, condenser, points for Mercruiser and OMC 2.5 and 3.0 w/Delco Distributor. Approx years 1963-1989

Meets or exceeds OEM specs

Cap, rotor, points replaces 393-9459Q1

Stress-relieved at molding to ensure stability

Corrosion-resistant brass inserts and steel rotor springs to provide high-spark energy flow

Offer superior protection from "arc-thru" and crossfire