ROD CONNECTING ASSEMBLY N N ø 2 & 4
Connecting rod assembly for cylinder 2 and 4.
With desirable 7/16 size chamfered head bolts.
Connecting rod complete cylinder no. 2 & 4
WO-640072
Complete connecting rod for cylinders no. 2 and 4 of the Willys 134ci L-head engine. This connecting rod is essential during engine overhaul and has a specific offset and oil squirt hole that differs from the connecting rods for cylinders 1 and 3.
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Engine type 134ci L-head (Go Devil) |
Position Cylinder 2 & 4 |
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Bolt specification 7/16" thread bolts |
Part number WO-640072 |
Features
- Complete connecting rod with bolt assembly
- For cylinders 2 and 4 (not interchangeable with 1 & 3)
- Specific offset for correct alignment with crankshaft
- Oil squirt hole correctly positioned
- 7/16" diameter connecting rod bolts (late type)
★ New production connecting rod for correct engine overhaul. Essential for any serious engine restoration of the iconic Go Devil engine.
Application
For Willys 134ci (2.2L) L-head "Go Devil" engine. Part number WO-640072 replaced the earlier WO-640000. This connecting rod fits cylinder position 2 and 4. NOTE: connecting rods 1 & 3 have a different part number (WO-640071) due to different offset direction.
Installation notes
CRITICAL: connecting rods have an offset (asymmetric big-end). The longest side of the offset must ALWAYS point towards the nearest main bearing, NOT away from it (the early TM manuals contain an error on this point). The oil squirt hole must face the passenger side of the block (away from the camshaft). Cap and rod are finish-machined together during manufacture — NEVER swap caps between connecting rods.
Compatibility
There are 2 different connecting rods in the L-134 engine: WO-640071 for cylinders 1 & 3, and WO-640072 for cylinders 2 & 4. These are NOT interchangeable due to different offset direction and oil squirt hole position. Willys MB/GPW connecting rods with 7/16" bolts are technically interchangeable with Ford GPW integral-bolt type, although they appear different.
Historical context
The WO-640072 connecting rod was developed during the war for the legendary Go Devil engine and replaced the earlier WO-640000 number. This robust engine powered virtually all Willys MB and Ford GPW jeeps built between 1941-1945.
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 : Piston,Rings & Bearings CJ2A, CONNECTING RODS & HARDWARE CJ3A, Piston,Rings & Bearings M38, CONNECTING RODS & HARDWARE M38, CONNECTING RODS & HARDWARE CJ3B
This part fits:
| Model | Years |
|---|---|
| Military jeeps | |
| Willys MB (early) | 1941, 1942 |
| Willys MB | 1942, 1943, 1944, 1945 |
| Hotchkiss M201 | 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966 |
| Willys M38 | 1950, 1951, 1952 |
| Willys M38A1 | 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971 |
| CJ series | |
| Jeep CJ-2A | 1945, 1946, 1947, 1948, 1949 |
| Jeep CJ-3A | 1949, 1950, 1951, 1952, 1953 |
📐 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)
