Vintage Autolite 403 BP Spark Plugs – Box of 24 – NOS USA Made

Description:

For sale is a full box of 24 NOS Autolite 403 BP spark plugs, proudly made in the USA and packaged under Allied-Signal’s aftermarket division. These plugs are ideal for vintage Ford, AMC, and marine applications. Cross-reference compatible with Champion J8C, NGK B6S, AC C44N, and Bosch W8AC. Perfect for restorers, collectors, or anyone seeking period-correct ignition components.

will break up set if needed - just inquire

🔍 Part Number Details

• Primary Part Number: Autolite 403 BP

• Additional Markings: 1836603, DEPT. 61-02

• Packaging: Box of 24 plugs

• Branding: Autolite (Fram/Bendix), Allied-Signal Inc.

• Country of Origin: Made in the USA 🇺🇸

🚗 Fitment Examples

Autolite 403 BP plugs are typically used in older domestic vehicles and small engines. Here are a few likely applications:

• Ford 289/302 V8 engines (mid-1960s to early 1970s)

• AMC inline-6 engines

• Vintage tractors and industrial engines

• Marine applications with similar thread/gap specs

Always confirm with a plug chart or manual for exact fitment.

🔁 Cross Reference Equivalents

These plugs cross-reference with several other brands:

Reference charts like this one can help verify compatibility across brands.