ThunderSpark Distributor Cap P/N:925-1011
Keep high-voltage spark reaching the right cylinder with the ThunderSpark Distributor Cap 925-1007, an OE-replacement cap for conventional distributor-based ignition systems. It fits a wide range of early-1980s to early-1990s GM, Jeep and AMC vehicles, including the 1981-1984 Buick Skylark, 1982-1984 Chevrolet Camaro, 1983-1991 Chevrolet S10, 1983-1990 GMC S15, 1982-1983 Jeep CJ7, 1982-1984 Pontiac Firebird and many more — see the Buyer's Guide tab for the full list.
The distributor cap directs current from the ignition coil to the correct spark plug through the rotor and internal terminals. Over time caps can develop carbon tracking, cracking, or corrosion, which can lead to misfires and hard starting; if a worn or cracked cap is the cause, this replaces it.
Interchange: D-339 · C-213 · 51-1577 · RR-209 · DR-190 · TD-27 · DR-69-B · 33-7012 · DR-120 · DC-420 · DC-420X · DR-916
D339 · C213 · 511577 · RR209 · DR190 · TD27 · DR69B · 337012 · DR120 · DC420 · DC420X · DR916 · 5C3 · 5D1020 · 4217 · 19110938 · 1978497 · 8134006 · J8134006 · 1443 · DR455 · DR455T
This part cross-references / interchanges with the following part numbers:
What does a distributor cap do?
It directs high-voltage current from the ignition coil to the correct spark plug through the rotor and internal terminals, helping maintain the engine's firing order.
What are signs my distributor cap may need replacing?
Carbon tracking, cracking, or corrosion on the cap can lead to misfires, hard starting, and drivability issues. Diagnose the cause before replacing.
Will this cap fit my vehicle?
It's an OE-replacement cap for many 1981-1991 GM, Jeep and AMC applications. Check the Buyer's Guide tab to confirm it matches your exact year, make and model.
Is this an OE-quality replacement?
Yes. It's built to meet OE specs for terminal alignment, dielectric strength, and conductive-path precision, and is designed to install into the original distributor housing.
What numbers does this cap interchange with?
It cross-references D-339, C-213, 51-1577, RR-209, DR-190, TD-27, DR-69-B, 33-7012, DR-120, DC-420, DC-420X, DR-916, 5C3, 5D1020, 4217, DR455 and more listed above.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.