Overview
The ZF 0636.101.069 CAP SCREW is a critical fastening component engineered specifically for the WG190 and WG210 series transmissions. This OEM genuine part secures the housing assembly, ensuring that internal components remain precisely aligned under high torque and thermal stress. The SKU 0636.101.069 is designed to withstand the demanding loads of industrial drivetrains, preventing loosening that could lead to misalignment of the TRANSMISSION HOUSING. Without this cap screw, the structural integrity of the gearbox is compromised, making it an indispensable element for maintaining OEM tolerances.
Symptoms of Failure
- Transmission fluid seepage around the bolt head: A worn or stripped 0636.101.069 cap screw fails to maintain a proper seal, leading to oil leaks that can be spotted on the housing exterior.
- Abnormal gear engagement noise: When this fastener loosens, the HOUS.FRONT SECT can shift slightly, causing a distinct clattering sound during gear changes.
- Vibration at the bell housing: A failing cap screw allows micro-movement between the HOUSING REAR PART and the main case, resulting in noticeable vibration during operation.
- Intermittent loss of hydraulic pressure: If the cap screw fails, the HOUSING REAR SECTION may separate slightly, causing pressure drops that affect clutch pack engagement.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0636.101.069 |
| Thread Size | M10 x 1.5 |
| Overall Length | 35 mm |
| Head Type | Hexagon socket (Allen) |
| Material | Alloy steel, zinc-plated |
| Weight | 0.04 kg |
| OEM Reference | ZF 0636.101.069 |
| Torque Specification | 45 Nm (dry) |
Compatibility
This cap screw is designed for the ZF WG190 and WG210 transmission families. It is also compatible with the WG180 and WG200 series when used in the same housing bolt pattern. The 0636.101.069 is specifically required for securing the TRANSMISSION HOUSING to the HOUS.FRONT SECT and the HOUSING REAR PART. Always verify your transmission model number before ordering, as the HOUSING REAR SECTION may require a different fastener variant in certain production years.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101078 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4657201166 | HOUS.FRONT SECT | Front section of the housing assembly |
| 4657201168 | HOUSING REAR PART | Rear housing section for output shaft |
| 4657298101 | HOUSING REAR SECTION | Alternate rear housing component |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | Alternate cap screw variant |
| 4656301148 | FIXING PLATE | Locking plate for fastener retention |
| 4657301032 | SCREEN SHEET | Filter screen for oil sump |
| 4657301033 | SCREEN SHEET | Secondary filter screen variant |
| 0636100803 | CAP SCREW | Longer cap screw for deep bosses |
Frequently Asked Questions
Q: Can I reuse the 0636.101.069 cap screw after removal?
A: ZF recommends replacing this cap screw with a new OEM part each time it is removed. The zinc plating and thread tolerances are designed for single-use torque retention, and reusing it may lead to improper clamping force on the TRANSMISSION HOUSING.
Q: What is the difference between 0636.101.069 and 0636100803?
A: The 0636.101.069 has a standard 35 mm length, while the 0636100803 is a longer variant used when additional thread engagement is needed, such as when mounting the HOUSING REAR PART with a thicker gasket.
Q: How do I verify the correct torque for this cap screw?
A: Always consult the ZF service manual for your specific WG190 or WG210 model. The standard dry torque is 45 Nm, but this may vary if the threads are oiled or if a FIXING PLATE is used under the head.
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Phone: +86 158 2286 3467 |
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