NOS Autolite 166 Spark Plugs – Bendix Resistor Type – USA Made

Description:

A complete box of 10 NOS Autolite 166 spark plugs, resistor-style and proudly made in the USA. These plugs replace Autolite BTRF42 and are ideal for vintage Ford V8 applications including 302, 351W, and 460 engines. Cross-reference compatible with Motorcraft ASF42, NGK BPR5ES, AC R44TS, and more. Perfect for restorers, collectors, or anyone seeking period-correct ignition components.

🔍 Part Number Details

• Primary Part Number: Autolite 166

• Type: Resistor-style spark plug

• Replaces: Autolite BTRF42

• Packaging: Box of 10 plugs

• Branding: Bendix Autolite / Fram / Allied-Signal

• Country of Origin: Made in the USA 🇺🇸

🚗 Fitment Examples

While the packaging notes no direct Champion or AC equivalents, the Autolite 166 (replacing BTRF42) was typically used in:

• Ford 302, 351W, and 460 V8 engines (1970s–1980s)

• Mercury and Lincoln full-size sedans

• Ford F-Series trucks and Econoline vans

• Marine and industrial Ford V8 platforms

These plugs are ideal for restorers seeking period-correct ignition components for classic Ford builds.

🔁 Cross Reference Equivalents

Always confirm thread size, reach, and heat range for exact compatibility.