PLUG OIL DRAIN AXLE
WO636577
Differential housing oil drain plug front and rear axle
For Dana 25/27 front axle and Dana 23/27/41/44/53 rear axle
Drain plug located at the bottom of the differential housing for easy axle oil change. Suitable for both front and rear axles of military jeeps and early CJ models. This plug is positioned on the underside of the differential housing and enables maintenance without removing the differential cover.
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Application Dana 25/27 front axle, Dana 23/27/41/44/53 rear axle |
Type Differential housing drain plug (underside) |
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Part number 636577 |
Mounting location Underside of differential housing front and rear axle |
Features
- Suitable for front and rear axles
- Fits Dana 25/27 front axles
- Fits Dana 23/27/41/44/53 rear axles
- Located at the bottom of the differential housing
- Replaces damaged or worn original plug
★ Essential component for correct maintenance of the differential axles. Enables oil draining without removing the entire differential cover.
Application
Front axle: Dana 25 (1941-'66) and Dana 27 (1941-'45)
Rear axle: Dana 23/27 (1941-'45), Dana 41 ('46-'64), Dana 44 ('48-'71), Dana 53 (various models)
This plug is used on the categories in which this product appears: MB, GPW, CJ-2A, CJ-3A, CJ-3B, M38, M38A1 and related models.
Installation notes
The plug is located on the underside of the differential housing — beware of potential damage during off-road use due to low ground clearance. When replacing: clean the thread thoroughly and use sealant or PTFE tape if necessary for a leak-free seal. Check the plug regularly for wear or damage.
Compatibility
ONLY suitable for Dana axles with drain plug on the underside of the differential housing. Not all Dana 44 variants have a drain plug — later models only have a filler plug and require removal of the differential cover for oil draining. Check whether your axle has a drain opening at the bottom before ordering this part.
Historical context
The Dana 25, 27, 41 and 44 axles formed the standard equipment for military jeeps and early CJ models. The drain plug at the bottom of the differential housing was a practical feature for straightforward maintenance in the field, particularly important for military use during WWII.
This description was generated automatically. Unsure about fitment? Contact us at info@willys.be.
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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 : GROUP 11 - REAR AXLE, GROUP 11 REAR AXLE DANA 44, AXLE FRONT LATE 4X4|6X6, GROUP 10 - FRONT AXLE CJ2A, GROUP 11 - REAR AXLE CJ2A, GROUP 10 - FRONT AXLE CJ3A, GROUP 10 - FRONT AXLE - M38, GROUP 11 REAR AXLE DANA 44 3B, GROUP 10 - FRONT AXLE CJ3B, GROUP 11 REAR AXLE DANA 44 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 9-1803B — Ordnance Maintenance — Power Train, Body & Frame — only for Willys MB / Ford GPW (¼-ton 4×4)
