ACDELCO R45TS

ACDELCO part number R45TS is a spark plug in the Ignition system. This catalog matches it to 7 year-and-engine configurations from 1970 to 1982.

Verified fitment includes 1982 Checker Marathon 3.8L 229cid V6 ; 1982 Checker Marathon 4.4L 267cid V8 ; 1981 Checker Marathon 3.8L 229cid V6 ; 1976 Checker Marathon 4.1L 250cid L6 ; 1974 Checker Marathon 5.7L 350cid V8 , plus 2 other configurations. See every vehicle this part fits.

Manufacturer specifications
GM Original EquipmentConventionalPre-Set Gap: 0.044"
Original Equipment-Recommended Gap: .045
Application data published for:
🇺🇸 US 🇨🇦 CA

Frequently Asked Questions

What is ACDELCO R45TS?

ACDELCO part number R45TS is a spark plug with published application data for 7 vehicle configurations from 1970 to 1982. Use the manufacturer part number to cross-reference your old part or a repair quote before you order.

Which vehicles does ACDELCO R45TS fit?

This catalog matches R45TS to 7 year-and-engine configurations from 1970 to 1982. Open the compatible-vehicles list for every make, model and engine, and read the notes for position or trim qualifiers.

Is ACDELCO R45TS OEM or aftermarket?

What matters is the published application data for this part number, not the label on the box. ACDELCO R45TS 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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