OEM Automotive Distributor Caps

The distributor cap in your Toyota, Jeep, Subaru, or RAM vehicle works like any cover. If it goes missing -- or just fails to do its job -- you'll need to replace it ASAP in order to keep driving in a manner to which you've grown accustomed. Find yours right here in our online auto parts catalog, in stock and priced well below the MSRP that others charge.

Buyer's Guide to OEM Automotive Distributor Caps

What Distributor Caps Do

The distributor cap shields the differing distributor parts while preserving the contact between the distributor's internal rotor and the spark plug wires. That ensures that the ignition coils receive the electric current required to fire up your engine.

How to Spot Distributor Cap Problems

Signs of trouble include:

• A misfiring engine
• Noticeable power loss
• Worsening fuel mileage
• The distributor housing is cracked
• There are scorch marks on the distributor cap terminal
• Your engine hesitates
• The wire tower is broken
• Your engine repeatedly stalls
• The "Check Engine" light comes on -- though this generic warning requires connecting a code reader in order to determine the cause

How Often You Should Check Your Distributor Cap

To avoid problems, make a habit of checking your distributor cap and rotor every 25,000 miles or so. You'll also want to consult your owner's manual to determine your distributor cap's max mileage rating, so that you can replace it before it fails.