Overview
The ZF 0501.343.367 BRAKE CYLINDER is a critical hydraulic actuation component designed for heavy-duty construction machinery transmissions. This OEM genuine part converts hydraulic pressure into mechanical force to engage the brake packs within the transmission housing, ensuring controlled deceleration and stationary holding capability. Positioned within the valve body assembly of ZF power shift transmissions, the SKU 0501.343.367 directly influences clutch pack modulation and overall drivetrain response. When paired with a properly functioning 2093109029 DIFFERENTIAL, this brake cylinder ensures balanced torque distribution during braking events.
Symptoms of Failure
- Transmission brake drag or incomplete release: A worn brake cylinder piston seal causes hydraulic pressure to bleed, leaving the brake partially engaged. Operators notice sluggish acceleration and elevated transmission temperatures.
- External hydraulic oil leaks near the valve body: Cracked cylinder bores or degraded O-rings on the 0501.343.367 unit produce visible fluid seepage, often mistaken for cooler line leaks.
- Intermittent gear slipping under load: When the brake cylinder fails to hold full pressure, the transmission may momentarily lose drive engagement on inclines or during heavy digging cycles.
- Erratic brake engagement with delayed response: Air ingestion through a failing cylinder causes spongy pedal feel and inconsistent stopping power, particularly in cold-start conditions.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0501.343.367 |
| Bore Diameter | 38.1 mm (1.50 in) |
| Stroke Length | 22.5 mm |
| Housing Material | Ductile cast iron (GJS-500) |
| Seal Material | Nitrile rubber (NBR) with PTFE backup ring |
| Operating Pressure | 12–18 bar (174–261 psi) |
| Weight | 1.42 kg (3.13 lbs) |
| OEM Reference | ZF 0501.343.367 |
Compatibility
This brake cylinder is engineered for ZF WG-series powershift transmissions commonly installed in wheel loaders, telehandlers, and graders. Verified compatible models include WG180, WG200, WG210, and WG250 series. It also fits select ZF 4WG-200 and 6WG-200 variants used in construction machinery from 2005 onward. For full driveline integrity, inspect the 0750117075 TAPER ROLLER BEARING and 2093209094 DIFFERENTIAL when servicing the brake cylinder assembly. The 2093309078 DIFF.HOUSING must also be checked for cracks during cylinder replacement.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109029 | DIFFERENTIAL | Distributes torque between axles |
| 0750117075 | TAPER ROLLER BEARING | Supports rotating shafts under axial/radial loads |
| 2093209094 | DIFFERENTIAL | Secondary torque distribution unit |
| 2093309078 | DIFF.HOUSING | Encloses differential gear set |
| 0631100223 | SPRING PIN | Secures linkage pins in brake assembly |
| 0730300820 | THRUST WASHER | Reduces axial friction in rotating joints |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to final drive |
| 5838300811 | THRUST WASHER | Controls end-play in differential assembly |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Primary gear in differential set |
Frequently Asked Questions
Q: How do I confirm the 0501.343.367 brake cylinder fits my ZF WG200 transmission?
A: Verify your transmission serial number plate. The WG200 series uses this cylinder in all post-2008 builds. Cross-reference the bore diameter (38.1 mm) against your existing cylinder before ordering.
Q: Can I reuse the old seals when installing this brake cylinder?
A: No. Always replace all O-rings and backup rings. The 0501.343.367 ships with new seals, but we recommend also replacing the 0730300820 THRUST WASHER to prevent premature wear.
Q: What causes premature failure of this brake cylinder in wheel loaders?
A: Contaminated hydraulic fluid with water or silica particles accelerates bore scoring. Install a new 0631100223 SPRING PIN during service to eliminate vibration-induced loosening.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
