Rear Main Seal fits the 1961-67 Pontiac V8 326, 389 and 421 cubic inch engines.
Note: From 1961-63, the same Rear Main Seal (#5144 only) fits the Pontiac 4 cylinder 195 cubic inch engines & the 1955-60 Pontiac/GMC V8 287, 316, 347, 370 and 389 cubic inch engines.
Best set #5144 (326 and 389 ci engines)
Best set #6212S (421 ci engines) **pictured**
Made in the USA!
1961-67 Pontiac V8 Rear Main Seal for the 326, 389 and 421 cubic inch engines