CLOYES S391

CLOYES part number S391 is a timing crank sprocket in the Engine system. This catalog matches it to 12 year-and-engine configurations from 1969 to 1982.

Verified fitment includes 1982 Checker Marathon 4.4L 267cid V8 ; 1980 Checker Marathon 4.4L 267cid V8 ; 1979 Checker Marathon 5.0L 305cid V8 ; 1978 Checker Marathon 5.0L 305cid V8 ; 1977 Checker Marathon 5.7L 350cid V8 , plus 7 other configurations. See every vehicle this part fits.

Manufacturer specifications
with 18 Teeth on Crankshaft
Application data published for:
🇺🇸 US 🇨🇦 CA

Frequently Asked Questions

What is CLOYES S391?

CLOYES part number S391 is a timing crank sprocket with published application data for 12 vehicle configurations from 1969 to 1982. Use the manufacturer part number to cross-reference your old part or a repair quote before you order.

Which vehicles does CLOYES S391 fit?

This catalog matches S391 to 12 year-and-engine configurations from 1969 to 1982. Open the compatible-vehicles list for every make, model and engine, and read the notes for position or trim qualifiers.

Is CLOYES S391 OEM or aftermarket?

What matters is the published application data for this part number, not the label on the box. CLOYES S391 is listed with its manufacturer part number so you can compare it to an OEM number or another brand that covers the same fitment.

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