Overview
The ZF 0736.300.754 CAP SCREW is a critical fastening component engineered specifically for the WG190 and WG210 series transmissions. This OEM genuine part secures the transmission housing assembly, ensuring that key structural sections remain tightly sealed under high torque and thermal cycling conditions. The SKU 0736.300.754 is precision-machined to maintain clamping force, preventing fluid migration between the TRANSMISSION HOUSING and adjacent sections. Without this cap screw, the integrity of the entire gear train enclosure is compromised, leading to operational instability.
Symptoms of Failure
- Transmission oil seepage at housing joints: When the 0736.300.754 cap screw loses its preload, oil can weep from the mating surfaces between the HOUS.FRONT SECT and the main casing, creating visible drips on the bell housing.
- Abnormal gear engagement noise: A loose cap screw allows micro-movement between the HOUSING REAR PART and the main body, producing a rhythmic clicking sound during load shifts.
- Increased vibration at the transmission mount: As the fastener fatigues, the HOUSING REAR SECTION can shift slightly, transmitting excessive vibration through the driveline.
- Contaminated transmission fluid: A failed seal caused by a stripped cap screw allows external debris to enter the oil circuit, accelerating wear on internal clutches.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0736.300.754 |
| Thread Size | M10 x 1.5 |
| Overall Length | 45 mm |
| Head Type | Hexagon socket (Allen) |
| Material | Alloy steel, zinc-plated |
| Weight | 0.042 kg |
| OEM Reference | ZF 0736.300.754 |
| Torque Specification | 45 Nm + 90° angle |
Compatibility
This cap screw is designed for ZF WG series transmissions, specifically the WG190 and WG210 models. It also fits the WG180, WG200, and WG220 variants where the housing architecture uses identical M10 fastening points. The 0736.300.754 is commonly replaced during a full housing reseal procedure alongside the CYLINDRICAL PIN and FIXING PLATE to ensure alignment integrity. Always verify thread pitch compatibility with your specific transmission serial number before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101080 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4657201167 | HOUS.FRONT SECT | Front section of the transmission housing |
| 4657201171 | HOUSING REAR PART | Rear housing segment for output shaft |
| 4657298103 | HOUSING REAR SECTION | Complete rear housing sub-assembly |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | Alternate M10 fastener for cover plates |
| 4656301148 | FIXING PLATE | Retention plate for cap screw positioning |
| 4657301034 | SCREEN SHEET | Filter screen for oil sump protection |
| 4657301035 | SCREEN SHEET | Secondary filter screen for high-flow circuits |
| 0636100803 | CAP SCREW | Longer M10 fastener for deep housing bores |
Frequently Asked Questions
Q: Can I reuse the 0736.300.754 cap screw after removal?
A: ZF recommends replacing this cap screw with a new OEM unit whenever the housing is disassembled. The thread-locking coating and torque-angle yield properties degrade after initial installation, increasing the risk of loosening.
Q: What torque should I apply to the 0736.300.754?
A: The specified tightening procedure is 45 Nm followed by an additional 90-degree turn. Always use a calibrated torque wrench and angle gauge to avoid stripping the threads in the TRANSMISSION HOUSING.
Q: Does this cap screw fit the WG180 transmission?
A: Yes, the 0736.300.754 is compatible with WG180, WG190, WG200, WG210, and WG220 models. However, always cross-reference your housing part number with the HOUS.FRONT SECT to confirm thread depth compatibility.
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