CRANKSHAFT PACKING SET REAR
Pre-shaped for easy fitment
Crankshaft Rear Main Seal
Neoprene design – 2-piece with gasket strips
High-quality crankshaft rear main seal set for the L-134 Go Devil engine. This modern neoprene design replaces the original rope seal and provides improved sealing against oil leakage. The set contains two half seals and two gasket strips for correct installation between crankshaft and oil pan.
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Material Neoprene (modern design) |
Set contents 2 crankshaft seals + 2 gasket strips |
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Engine type L-134 Go Devil (L-head) |
Application Crankshaft rear main seal |
Features
- Modern neoprene design instead of traditional rope seal
- Improved sealing properties against oil leakage
- Two-piece construction with accompanying gasket strips
- Suitable for both chain-driven and gear-driven applications
- Direct replacement for original specification
★ This neoprene seal set is a reliable modern replacement for the original rope seal. The set offers superior sealing and longer service life compared to traditional materials.
Application
Suitable for all vehicles fitted with the L-134 Go Devil engine, both chain-driven versions (early MB/GPW/M201) and gear-driven versions (late CJ-2A/CJ-3A/CJ-3B/M38). Fits WWII models (1941-1945) and post-war civilian jeeps (1946-1953).
Installation notes
The seals are fitted between the crankshaft and rear main bearing. Install the two half seals in the designated grooves in both engine block and bearing cap. Use the supplied gasket strips to seal the sides. Do not overtighten the bolts – a snug fit is sufficient for the seal to work correctly. Ensure a clean, smooth crankshaft surface for optimal sealing.
Compatibility
This set is specific to L-134 engines. Not to be confused with the F-134 F-head engine used in later models. Fits both early chain-driven and late gear-driven versions of the L-134. Modern neoprene design – not identical to original WWII rope seal but functionally superior.
Historical context
Original WWII jeeps used graphite-impregnated rope seals for crankshaft sealing. These modern neoprene sets offer improved performance and are a reliable upgrade for restorations where durability takes priority over absolute originality.
This description was generated automatically. Unsure about fitment? Contact us at info@willys.be.
⚠ Spotted an error in this description? Report it to info@willys.be
This part is intended for the restoration of historic military vehicles. Fitting, aligning, deburring or reworking is part of that work and is inherent to the nature of these goods. Dimensional variation also exists between original vehicles.
Installation requires technical knowledge of the vehicle. Unsure whether this part suits your version? Ask us before purchase at info@willys.be.
ALL_CATEGORIES : CRANKSHAFT - MB/M201/GPW, LOWER ENGINE CJ2A, Sealings&Accessoires CJ3A, CRANKSHAFT CJ3A, Sealings&Accessoires M38, LOWER ENGINE M38, CRANKSHAFT - M38, CRANKSHAFT CJ3B, Sealings&Accessoires CJ3B
This part fits:
| Model | Years |
|---|---|
| Military jeeps | |
| Willys MB (early) | 1941, 1942 |
| Willys MB | 1942, 1943, 1944, 1945 |
| Ford GPW (early) | 1942 |
| Ford GPW | 1942, 1943, 1944, 1945 |
| Hotchkiss M201 (early) | 1956, 1957, 1958, 1959 |
| Hotchkiss M201 | 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966 |
| Willys M38 | 1950, 1951, 1952 |
| CJ series | |
| Jeep CJ-2A | 1945, 1946, 1947, 1948, 1949 |
| Jeep CJ-3A | 1949, 1950, 1951, 1952, 1953 |
| Jeep CJ-3B | 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968 |
📐 Diagrams & technical drawings
From the original Technical Manual CJ2A_PL_1949 — Parts List — only for Willys CJ-2A / CJ-3A (1949)
From the original Technical Manual TM 10-1513 — Maintenance Manual — only for Willys MB / Ford GPW (1942)
