Overview
The ZF 4681.354.013 COVER PLATE is a critical structural component designed for the BP210, BP230, WG190, and WG210 series transmissions. This OEM genuine part seals the transmission housing, protecting internal gears and hydraulic circuits from contaminants while maintaining proper oil pressure. The SKU 4681.354.013 is precision-machined to ZF’s exacting tolerances, ensuring a secure fit that prevents fluid bypass and maintains assembly rigidity. When installed, this cover plate works in concert with the 0636115293: 螺栓 and 0634313603: O-RING to create a leak-proof seal at the transmission’s side access point.
Symptoms of Failure
- Oil leaks at the transmission side cover: A degraded or warped cover plate allows transmission fluid to seep past the mating surface, often visible as drips near the BP210 or WG190 housing.
- Gear slipping under load: When the cover plate loses its sealing integrity, hydraulic pressure drops, causing delayed or erratic gear engagement in BP230 and WG210 models.
- Contaminated transmission fluid: A cracked cover plate permits dirt and moisture ingress, leading to accelerated wear on internal components and a gritty feel during shifting.
- Increased operating noise: A loose or improperly torqued cover plate can vibrate against the housing, producing a distinct rattling sound during acceleration.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4681.354.013 |
| Material | Die-cast aluminum alloy (A380) |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 210 mm x 145 mm x 12 mm |
| Surface Finish | Anodized, corrosion-resistant |
| OEM Reference | ZF 4681.354.013 |
| Bolt Torque Spec | 25 Nm (18.4 ft-lbs) |
Compatibility
This cover plate is engineered for ZF’s medium-duty automatic transmission families. It is directly compatible with the BP 210 and BP 230 series, as well as the WG 190 and WG 210 series. It also fits select variants of the WG180 and WG200 transmissions produced after 2005. For proper installation, always pair this cover plate with a new 0634313603: O-RING and secure it using the 0636100801: CAP SCREW set. The 0631306816: CYLINDRICAL PIN ensures precise alignment during reassembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 0636115293 | 螺栓 | Secures cover plate to transmission housing |
| 0634313603 | O-RING | Provides hydraulic seal between cover and housing |
| 0631306816 | CYLINDRICAL PIN | Aligns cover plate during installation |
| 0636100801 | CAP SCREW | Fastens cover plate with precise torque |
| 4681301015 | FIXING PLATE | Reinforces cover plate mounting points |
| 4681301016 | SCREEN SHEET | Filters debris from transmission fluid |
| 4681301017 | SCREEN SHEET | Secondary filtration for hydraulic circuit |
| 0636100803 | CAP SCREW | Alternate fastener for specific housing variants |
| 0750100162 | OIL FEED.HOUSG. | Distributes oil to clutch packs |
| 4656301023 | GASKET | Provides secondary sealing at mating surfaces |
Frequently Asked Questions
Q: Can I reuse the old O-ring when installing this cover plate?
A: No. ZF recommends always replacing the 0634313603: O-RING during cover plate service to prevent leaks from compressed or aged seals.
Q: Will this cover plate fit a ZF WG180 transmission from 2003?
A: The 4681.354.013 is compatible with WG180 units manufactured after 2005. For earlier models, verify the bolt pattern matches the 0631306816: CYLINDRICAL PIN alignment holes.
Q: What torque should I use for the cap screws?
A: Tighten the 0636100801: CAP SCREW to 25 Nm in a crisscross pattern to avoid warping the cover plate.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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