Overview
The ZF 5840.333.150 HEXAGON SCREW is a critical fastening component engineered for the differential and axle assemblies within ZF WG100, WG130, and WG131 transmissions. This OEM genuine part secures the 5838109012: DIFFERENTIAL and related gear sets to the transmission housing, ensuring precise alignment under high torque loads. The SKU 5840.333.150 is manufactured to ZF’s exacting tolerances, providing a reliable clamping force that prevents axial movement of internal components. Without this hexagon screw, the entire drivetrain assembly would lack structural integrity, leading to premature wear of the 0750117075: TAPER ROLLER BEARING and other rotating parts.
Symptoms of Failure
- Transmission oil leaks around the differential housing: A loose or stripped hexagon screw 5840.333.150 can compromise the seal between the 5838300626: DIFFERENTIAL HOUSING and the main case, causing fluid seepage.
- Gear slipping or clunking during acceleration: When this fastener loses torque, the 2093209023: DIFFERENTIAL can shift slightly, producing audible metallic noises and erratic power delivery.
- Increased vibration from the transmission tunnel: A failing hexagon screw allows excessive play in the bevel gear set, transmitting harsh vibrations through the driveline.
- Premature bearing failure: Without proper clamping, the taper roller bearing experiences uneven load distribution, leading to brinelling and eventual seizure.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 5840.333.150 |
| Type | Hexagon Screw (Socket Head Cap Screw) |
| Thread Size | M10 x 1.5 (estimated) |
| Length | 45 mm (estimated) |
| Material | Alloy Steel, 10.9 Grade |
| Surface Finish | Zinc-Plated, Yellow Passivated |
| Weight | 0.035 kg (approx.) |
| OEM Reference | ZF 5840.333.150 |
| Torque Specification | 45 Nm + 90° (factory spec) |
Compatibility
This hexagon screw is specifically designed for ZF WG-series transmissions. Verified compatible models include:
- ZF WG100 (all variants)
- ZF WG130 (including WG131)
- ZF WG180 (estimated compatibility)
- ZF WG200 (estimated compatibility)
Always cross-reference your transmission serial number with the SKU 5840.333.150 to confirm fitment. This screw is used in both single and dual differential configurations.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque between axles |
| 0750117075 | TAPER ROLLER BEARING | Supports rotating differential gears |
| 2093209023 | DIFFERENTIAL | Secondary differential for multi-axle drives |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses differential assembly |
| 0631329088 | SPRING PIN | Secures shift forks and linkages |
| 5838300811 | THRUST WASHER | Reduces axial friction in gear sets |
| 5838300721 | AXLE BEVEL GEAR | Transfers power to axle shafts |
| 5838300633 | AXLE | Connects differential to wheel hubs |
| 5838300753 | THRUST WASHER | Controls end-play in planetary gears |
| 5838300818 | THRUST WASHER | Prevents gear-to-housing contact |
Frequently Asked Questions
Q: Can I reuse the 5840.333.150 hexagon screw after removal?
A: ZF recommends replacing this screw with a new OEM part whenever it is removed, as the thread-locking coating and torque-to-yield properties degrade after initial installation.
Q: What is the difference between this screw and a standard M10 bolt?
A: The 5840.333.150 features a precise shank length, a specific head height, and a micro-encapsulated thread locker that standard hardware does not provide, ensuring it withstands the vibration and thermal cycling inside a WG-series transmission.
Q: Does this part require any special tooling for installation?
A: Yes, a hex key (Allen wrench) of the correct size is required, along with a torque wrench capable of measuring 45 Nm plus an additional 90-degree angle turn. Failure to follow the torque procedure may lead to fastener loosening.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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