ACDELCO 12C18

ACDELCO part number 12C18 is a crankcase breather cap in the Exhaust & Emission system. This catalog matches it to 5 year-and-engine configurations from 1965 to 1967.

Verified fitment includes 1967 American Motors Ambassador 3.3L 199cid L6 ; 1967 American Motors Marlin 3.8L 232cid L6 ; 1966 American Motors Ambassador 3.3L 199cid L6 ; 1966 American Motors Marlin 3.3L 199cid L6 ; 1965 American Motors Classic 3.3L 199cid L6 . See every vehicle this part fits.

Manufacturer specifications
Professional
Application data published for:
🇺🇸 US 🇨🇦 CA

Frequently Asked Questions

What is ACDELCO 12C18?

ACDELCO part number 12C18 is a crankcase breather cap with published application data for 5 vehicle configurations from 1965 to 1967. Use the manufacturer part number to cross-reference your old part or a repair quote before you order.

Which vehicles does ACDELCO 12C18 fit?

This catalog matches 12C18 to 5 year-and-engine configurations from 1965 to 1967. Open the compatible-vehicles list for every make, model and engine, and read the notes for position or trim qualifiers.

Is ACDELCO 12C18 OEM or aftermarket?

What matters is the published application data for this part number, not the label on the box. ACDELCO 12C18 is listed with its manufacturer part number so you can compare it to an OEM number or another brand that covers the same fitment.

AutoFactsDB is reader-supported. As an Amazon Associate, we earn from qualifying purchases made through links on this page — at no extra cost to you.

Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.