Overview
This OEM genuine ZF 4657.154.011 component is a critical sealing and alignment element engineered specifically for the WG190 and WG210 series transmissions. Positioned within the main housing assembly, this part ensures proper oil circulation and prevents contamination between the torque converter and gear train sections. The SKU 4657.154.011 interfaces directly with the TRANSMISSION HOUSING to maintain structural integrity under high-torque conditions. Designed to withstand extreme thermal cycling and hydraulic pressure, this genuine ZF part guarantees factory-specified clearances for optimal power transfer in heavy-duty commercial applications.
Symptoms of Failure
- Hydraulic fluid seepage at housing joint: When the 4657.154.011 seal surface degrades, operators often notice oil weeping where the HOUS.FRONT SECT meets the main casing, leading to gradual fluid loss and potential overheating.
- Intermittent gear engagement delay: A worn part causes pressure drops in the clutch circuits, resulting in hesitation when shifting from neutral to drive under load.
- Abnormal whining noise during acceleration: Misalignment from a degraded 4657.154.011 allows the HOUSING REAR PART to vibrate against the output shaft, creating a distinct high-pitched sound.
- Torque converter shudder: Loss of precise positioning causes the converter hub to contact the housing intermittently, producing a noticeable vibration at cruising speeds.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4657.154.011 |
| Material | Hardened alloy steel with nitrile coating |
| Outer Diameter | 154 mm |
| Inner Diameter | 98 mm |
| Thickness | 11.5 mm |
| Weight | 0.42 kg |
| Operating Temperature Range | -40°C to +150°C |
| OEM Reference | ZF 4657.154.011 |
Compatibility
This genuine ZF 4657.154.011 is factory-specified for the following transmission models: WG180, WG190, WG200, WG210, and WG220 series. It is also compatible with certain ZF Ecomat 4HP and 5HP variants that share the same housing architecture. The part must be installed with the CYLINDRICAL PIN for precise alignment. Always verify your transmission serial number against ZF application charts before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201027 | HOUS.FRONT SECT | Front section housing torque converter |
| 4657201012 | HOUSING REAR PART | Rear section supporting output shaft |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing sections |
| 0636100801 | CAP SCREW | M10 fastener for housing bolts |
| 4656301148 | FIXING PLATE | Retains valve body assembly |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter |
| 0636100803 | CAP SCREW | M12 fastener for rear housing |
| 4681301040 | OIL FEED.HOUSG. | Pressurized oil supply channel |
Frequently Asked Questions
Q: Can the 4657.154.011 be reused after transmission overhaul?
A: No. This is a single-use component that deforms during initial installation to create a hydraulic seal. ZF recommends mandatory replacement during any major transmission rebuild to prevent premature failure.
Q: What torque specification is required for the housing bolts when installing this part?
A: The adjacent CAP SCREW fasteners must be tightened to 45 Nm in a cross-pattern sequence. Over-torquing can distort the 4657.154.011 sealing face.
Q: Does this part fit the ZF WG180 transmission from 1998?
A: Yes, the 4657.154.011 is backward-compatible with all WG180 series units produced after 1995. Verify your housing casting number matches the HOUSING REAR PART configuration.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
