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REAR MAIN SEALS: AMC Buick Cadillac Chevrolet Chrysler Dodge DeSoto Ford GMC Hudson Lincoln Mercury Nash Oldsmobile Packard Pontiac Plymouth Studebaker Willys Jeep Other
If you are not sure which rear main seal is the correct one from using this page, go to the engine gaskets page and try from that direction. Otherwise contact us and we would be willing to help whatever your question on this topic is.
NOTE: =should be in stock and available to ship within 1-2 business days. =normally not in stock or limited supply; This may take up to 3-6 weeks for delivery. Email for more information. If you order a part and then decide to cancel the order without contacting us, you will be subject to a 5% refund fee as our merchant account / PayPal no longer returns fees charged to us and to cover paperwork. It is strongly suggested that you contact us before ordering if you are unsure about shipping times, correct part or any other problem that may come up.
Notes on Rear Main Seal: Seal performance varies for the rubber rear mains seals if the engine block has been roughly machined. This is not always the best choice for the older cars where machining techniques were not yet refined. If you are not sure how well machined your block is, we recommend going to rope seal. If the car has good machining and you are putting the rear main seal in chassis, rubber seals are easier to place than the rope seals.
AMC/Nash Nash "600" 1941-1949 and Rambler Statesman 1950-1952 AMC 184-196 "L"-Head Cast Iron1953-65 AMC 6 196 OHV Cast Iron 1956-65 AMC, Hudson, Studebaker with Packard V8 320-352-374 1955-56 engineRope:
AMC V8 250-287-327 1957-66 Willys 327 1965-71
1939-53 Buick straight 8 "40-50" series due to engine machining variances, seal performance may vary for rope see p/n5143 below 1957-66 Buick V8 364-401-425 (rubber also available for this series, see p/n 3A29S) 1953-56 Buick V8 264-322 1956-59 Chevy V8 322 Buick engine Buick V8 364-400-401-425 1957-66 (for rope see p/n 5143 above) Buick V8 300 1964-67 (or use rope 6228 below)
Buick V8 215 Special-Skylark 1961-63 Pontiac V8 215 Tempest 1961-62 Buick V8 300-340 1964-67 Buick 455
1940-48 Cadillac V8 1949-early1958 Cadillac V8 due to engine machining variances, rubber rear main seal performance may vary before 1955
Cadillac V8 365-390 1956-62
1940-62 Chevrolet/GMC 6 cyl 216-235-261 1956-62 Chevrolet/ GMC 235-261 Chevrolet Truck V8 322 1956-59R
Chevrolet V8 348-409 1958L-65
Chevrolet V8 348 Early 1958
1937-39 GMC 6 cyl. 230 Oldsmobile Engine GMC 6 228-236-248-270-302 1939-62
GMC 6 223-233 1935-38
GMC 324 V8 1955-56
GMC V8 370 1957-59
Dodge/ Plymouth/ Chrysler / DeSoto Please be sure to check pictures/options as the same year may take different seals
Plymouth 4 1929-32
Chrys Prod. 6 1933-52, where rope is used Installed outside the block using a pair of 3-bolt retainers (part of the engine, not part of a seal set.)
Chrysler Products V8
Chrysler/DeSoto 6 1930-36, st8 1931-38
Chrysler/ Dodge/ Plymouth 6 cylinder Bolts to outside of block contains one pair each early and late rear main cap seal
1951-1959 Dodge/ Plymouth 218-230 1948-1954 Chrysler DeSoto 6 cylinder Chrysler st8 1939-42 Chrysler st8 1946-50 Chrysler V8 392 Hemi Mopar V8 361-383-400-413-426-440
1945-53 Ford V8 Flathead
Lincoln, Mercury V8 383-430-462 1958-68 Edsel V8 410 1958
Lincoln, Mercury, Edsel V8 383-410-430-462 1952-68
Ford/Merc V8 OHV 239-256-272-292
Ford V8 312 Y-block due to engine machining variances, rubber rear main seal performance may vary Ford V8 239ohv-256-272-292-312 1954-62
Oldsmobile 6 215-219-229-238 1937-48 Oldsmobile 6 257 1949-50 Oldsmobile Straight 8 1937-48
Pontiac V8, except 421 1961-67 Pontiac 4 195 Tempest 1961-63 Pontiac V8 370-389 1959-60
Oldsmobile V8 303 1949-53 Oldsmobile V8 324 1954-56
Pontiac 6 1939-54, st8 1950-54
Pontiac 6 230-250 1966-69 Overhead Cam
Oldsmobile V8 303 1949-53 Oldsmobile V8 324 1954-56
Oldsmobile V8 371-394 1959-60 Oldsmobile V8 394 1961-64
Oldsmobile V8 371 1957-58
Oldsmobile V8 371-394 1959-60
Pontiac V8 215 Tempest 1961-62 Oldsmobile V8 215 1961-63 Pontiac V8 326-389-421 1961-67, 455 1967-79
Pontiac V8 , 400 428 1967-79
Packard 6 245 1948-50 Packard 1940-50, 356 Super 8
Packard V8 320-352-374 1955-56
Studebaker 6 218-226-246 Comm. 1949-50 & Truck 1949-60
Studebaker 6 164-170 Champ. 1939-54 & Truck 1941-54
Studebaker 6 169-186 1955-60 Champion, Lark, Truck Studebaker 6 170 Lark 1961-64
Studebaker V8 232 1951-54 Studebaker V8 224-259-289 1955-64
Studebaker V8 320-352-374 1955-56 with Packard engine
Willys Jeep 4 134 L-Head 1946-64 Willys Jeep 4 134 F-Head 1946-64 Willys Jeep 6 148-161 L-Head 1948-55 Henry-J 1951-54 1952-56, 161 F-Head Willys Willys Jeep 6 226 L-Head 1948-64 Kaiser-Frazer 6 226 1947-54 Willys Jeep 6 148-161 L-Head 1948-55 Henry-J 1951-54Rope-Kaiser -Frazer 1948-62E Jeep Jeep 6 230 OH-Cam 1962-65 Willys 327 1965-71
There are three general size Rope Seals available for other vehicles listed here:. |