Autolite 65 Spark Plug

Autolite 65 Copper Resistor Spark Plug

Autolite 65 is a copper resistor spark plug built for OE-style fit, form, and function across a wide range of classic and late-model applications. It is a practical replacement choice for drivers looking for quick starts, smooth acceleration, and steady ignition performance.

The Autolite Copper Resistor Spark Plug line focuses on dependable everyday operation and value-focused OE replacement coverage for foreign and domestic vehicles.

Key Features

• Copper center electrode core for consistent ignition performance
• Resistor design with 4,000 ohms resistance
• Nickel center and ground electrode tip materials
• Tapered ground electrode tip design with one ground electrode
• Pre-gapped to 0.035 in. / 0.90 mm
• Ceramic insulator with mid-projection design
• Flat seat, 14.0 mm thread diameter, 19.5 mm reach
• 13/16 in. hex size and stud terminal type

Product Details

Autolite 65 is engineered as an OE-style spark plug replacement for a broad range of vehicles, including Chrysler, Dodge, Plymouth, Jeep, Toyota, Jaguar, Rolls-Royce, Bentley, and more. The copper core construction supports reliable spark delivery, while the resistor design helps maintain stable ignition system operation. This part number is commonly searched for fitment-based applications such as Fits 1984-1995 Dodge Caravan, N/A and Fits 1980-1988 Jeep J10, N/A, along with many other OE-style spark plug applications.

This part cross-references Champion Spark Plug 38 for the same application.

Common Problems It Can Address

• Hard starting caused by worn or fouled spark plugs
• Rough idle from inconsistent ignition firing
• Slow throttle response during acceleration
• Reduced fuel economy related to degraded spark performance
• Misfire symptoms tied to aged secondary ignition components

Installation Notes

Verify thread diameter, reach, seat type, and pre-gap before installation. This plug uses a 0.035 in. pre-gap and a flat seat, so confirm the engine specification matches the vehicle application. For best results, inspect ignition wires, distributor components, and coil condition during service. Fitment coverage includes applications such as Fits 1995-1996 Chrysler Intrepid, N/A and Fits 1975-1979 Chevrolet LUV, N/A.

Quality Assurance

Autolite supplies ignition products to the automotive aftermarket and original equipment manufacturers, with OE-style replacement coverage for a wide range of makes and models. Part number 65 is built to match common factory-style spark plug requirements across many applications.