Restore crisp spark distribution across your classic Mopar ignition with the ThunderSpark Distributor Cap 925-1003. This OE-replacement cap is a direct-fit for a broad range of 1960s–1990s Chrysler, Dodge, Plymouth and Jeep applications, including the 1963-1976 Dodge Valiant, 1965-1976 Dodge Dart, 1965-1972 Plymouth Barracuda, 1965-1973 Plymouth Fury, 1975-1977 Jeep Cherokee and 1987-1993 Dodge Dakota — see the Buyer's Guide tab for the full list.
The distributor cap directs high-voltage current from the ignition coil through the rotor and internal terminals to the correct spark plug, maintaining the engine's firing order in conventional distributor-based ignition systems.
- Directs High-Voltage Spark: routes ignition coil output to the correct cylinder for proper firing order.
- Heat-Resistant Materials: built with high-dielectric compounds to withstand high voltage, thermal cycling and engine vibration.
- OE Replacement Quality: made to meet OE specifications for terminal alignment, dielectric strength and conductive path.
- OE Fit: designed to install into the original distributor housing and maintain secure contact with the rotor and ignition wires.
Over time, caps can suffer carbon tracking, cracking or corrosion, leading to misfires, hard starting and drivability issues. If a worn or damaged cap is the cause, replacing it during a tune-up or ignition repair helps restore reliable spark delivery.
