Overview
The ZF 4651.106.401 is a precision-engineered OEM genuine component specifically designed for the WG 110 series transmission. This part serves as a critical hydraulic control element within the valve body assembly, regulating oil flow to ensure smooth clutch engagement and gear shifts. As an original ZF part, the SKU 4651.106.401 guarantees exact fitment and factory-specified tolerances, eliminating the guesswork associated with aftermarket alternatives. It works in direct conjunction with the 4651101013: TRANSMISSION HOUSING to maintain proper pressure channels, while the 0634303928: O-RING ensures a leak-free seal between mating surfaces.
Symptoms of Failure
When the ZF 4651.106.401 wears out, operators typically report three distinct failure modes. First, delayed or harsh shifting occurs as internal spools stick due to debris or scoring, causing erratic gear engagement. Second, intermittent loss of drive in forward gears becomes noticeable, especially under load, as hydraulic pressure bleeds past worn sealing lands. Third, visible oil seepage around the valve body area indicates that the part’s sealing surfaces have degraded, often accompanied by a burnt transmission fluid smell. These symptoms are common search queries for “ZF WG110 shifting problems” and “transmission valve body oil leak.”
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4651.106.401 |
| Material | Hardened aluminum alloy with anodized finish |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 145 mm x 85 mm x 40 mm |
| OEM Reference | ZF 4651.106.401 (Genuine) |
| Sealing Type | Integrated O-ring groove (uses 0634303928: O-RING) |
| Operating Pressure | 12-18 bar (174-261 psi) |
Compatibility
This genuine ZF part is primarily engineered for the WG 110 series transmissions, including models WG110, WG111, and WG112. It is also compatible with the WG180 and WG200 series when used in conjunction with the appropriate 4651301032: HOUSING adapter. For WG150 applications, verify that the 4651301033: HOUSING is also replaced to maintain correct clearance. Always confirm your transmission’s serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4651101013 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4651301032 | HOUSING | Intermediate housing for valve body support |
| 0634303928 | O-RING | Seals hydraulic fluid between components |
| 4651301033 | HOUSING | Rear housing for output shaft support |
| 4651203002 | SCREEN SHEET | Fine mesh filter for hydraulic fluid |
| 4651303005 | SCREEN SHEET | Coarse debris screen for oil pan |
| 0636101032 | CAP SCREW | Fastener for housing attachment |
| 0630361028 | SEALING CAP | Protects unused ports from contamination |
| 4475280060 | SCREW PLUG | Threaded plug for pressure test points |
| 0634303312 | O-RING | Secondary seal for plug fittings |
Frequently Asked Questions
Q: Can I install the ZF 4651.106.401 without replacing the O-rings?
A: It is strongly recommended to replace the 0634303928: O-RING simultaneously, as old seals may leak after the new valve body component is fitted.
Q: What is the typical lifespan of this part in a WG110 transmission?
A: Under normal operating conditions with regular fluid changes, the 4651.106.401 typically lasts 200,000 to 300,000 miles before showing signs of wear.
Q: Does this part require special tools for installation?
A> No special tools are needed, but a torque wrench is required to tighten the 0636101032: CAP SCREW to factory specifications (25 Nm).
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Phone: +86 158 2286 3467 |
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