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Summit Racing SpeedCard - learn how to get 15% back up to $150

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Distributor Caps

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Distributor Caps

The cap of your distributor covers the moving parts inside and holds the contacts for the spark plug wires. If it’s damaged, you can lose spark energy and performance,...

The cap of your distributor covers the moving parts inside and holds the contacts for the spark plug wires. If it’s damaged, you can lose spark energy and performance, so keep an eye on it during routine maintenance, and if you need a new distributor cap, you’ll find it at Summit Racing Equipment!

No matter what sort of distributor you’re using—points, magnetic, or optical—it will have a cap made of an insulating material. Most distributor caps have one terminal post per cylinder, to which the spark plug wire attaches. Many caps have these posts parallel to the distributor shaft, while others,...

The cap of your distributor covers the moving parts inside and holds the contacts for the spark plug wires. If it’s damaged, you can lose spark energy and performance, so keep an eye on it during routine maintenance, and if you need a new distributor cap, you’ll find it at Summit Racing Equipment!

No matter what sort of distributor you’re using—points, magnetic, or optical—it will have a cap made of an insulating material. Most distributor caps have one terminal post per cylinder, to which the spark plug wire attaches. Many caps have these posts parallel to the distributor shaft, while others, called crab-style distributor caps, have the posts pointing perpendicular to the shaft.

Engine heat cycles and vibration can damage the insulating material of the distributor cap, which allows some of the spark energy to escape. This can lead to a weak spark and incomplete ignition, so be sure to inspect it for damage at every tune-up.

Summit Racing Equipment’s powerful Make/Model and Make/Engine search tools can help you find the distributor cap compatible with your vehicle. You can also search by distributor model or style.

For more information on distributors in general, be sure to check out this article at our Help Center, and for more specific questions, don’t hesitate to contact us directly.

Top Brands

Shopping for a new distributor cap? Summit Racing Equipment carries all the top brands in ignition, including Accel, MSD, Mallory, Bosch Automotive, PerTronix, Moroso, Motorcraft, Holley, FAST, ACDelco, and many more. You can buy with confidence since we only partner with trusted manufacturers—no third-party resellers here.

Individual Parts

Part Groups

Results 1 - 14 of 14

Mallory Distributor Caps 209M

Mallory Distributor Caps 209M

Mallory Distributor Caps 209M

Distributor Cap, Female, Socket-Style, Red, Clamp-Down, Mallory, V8, Each

Part Number: MAA-209M

4.57 out of 5 stars ( 68 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Mallory Marine Distributor Caps 221B

Mallory Marine Distributor Caps 221B

Mallory Marine Distributor Caps 221B

Distributor Cap, Flat, Socket-Style, Red, Clamp-Down, Mallory, Marine, YLU, YL Series, Each

Part Number: MAA-221B

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Mallory Distributor Caps 209D

Mallory Distributor Caps 209D

Mallory Distributor Caps 209D

Distributor Cap, Female, Socket-Style, Blue, Clamp-Down, Mallory, YL, YLU, YT Series, V8, Each

Part Number: MAA-209D

4.06 out of 5 stars ( 16 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Mallory Distributor Caps 29745

Mallory Distributor Caps 29745

Mallory Distributor Caps 29745

Distributor Cap, Male/HEI-Style, Red, Screw-Down, Mallory, V8, Each

Part Number: MAA-29745

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Mallory Distributor Caps 208M

Mallory Distributor Caps 208M

Mallory Distributor Caps 208M

Distributor Cap, Male/HEI-Style, Red, Screw-Down, Mallory 32, 42 Series, V8, Each

Part Number: MAA-208M

3.25 out of 5 stars ( 12 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Mallory Distributor Caps 225

Mallory Distributor Caps 225

Mallory Distributor Caps 225

Distributor Cap, Female, Socket-Style, Black, Clamp-Down, Mallory, YL, 25, 26, 37, 38 Series, L4, Each

Part Number: MAA-225

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Sierra Marine Distributor Caps 18-5376

Sierra Marine Distributor Caps 18-5376

Sierra Marine Distributor Caps 18-5376

Distributor Cap, Marine, Mallory Distributor, V8, Each

Part Number: RRA-18-5376

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Standard Motor Distributor Caps MY-409

Standard Motor Distributor Caps MY-409

Standard Motor Distributor Caps MY-409

Distributor Cap, Marine, Female/Socket, Clamp-On, Brass Terminals, Blue, Each

Part Number: SMP-MY409

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Sierra Marine Distributor Caps 18-5369

Sierra Marine Distributor Caps 18-5369

Sierra Marine Distributor Caps 18-5369

Distributor Cap, Marine, Female/Socket, Bolt-On Installation, Thermoplastic, Black, Each

Part Number: RRA-18-5369

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Sierra Marine Distributor Caps 18-5352

Sierra Marine Distributor Caps 18-5352

Sierra Marine Distributor Caps 18-5352

Distributor Cap, Marine, Prestolite Distributor, V8, Each

Part Number: RRA-18-5352

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Sierra Marine Distributor Caps 18-5397

Sierra Marine Distributor Caps 18-5397

Sierra Marine Distributor Caps 18-5397

Distributor Cap, Marine, Female/Socket, Clamp-On, Maroon, Each

Part Number: RRA-18-5397

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Sierra Marine Distributor Caps 18-5375

Sierra Marine Distributor Caps 18-5375

Sierra Marine Distributor Caps 18-5375

Distributor Cap

Part Number: RRA-18-5375

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 24, 2026 if ordered today

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Estimated Ship Date: Mar 24, 2026 if ordered today

Sierra Marine Distributor Caps 18-5362

Sierra Marine Distributor Caps 18-5362

Sierra Marine Distributor Caps 18-5362

Distributor Cap

Part Number: RRA-18-5362

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Sierra Marine Distributor Caps 18-5353

Sierra Marine Distributor Caps 18-5353

Sierra Marine Distributor Caps 18-5353

Distributor Cap, Marine, Prestolite Distributor, V6, Each

Part Number: RRA-18-5353

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

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