Overview
The ZF 5838.300.215 BRAKE CARRIER is a critical structural component within the final drive assembly of heavy-duty construction machinery transmissions. This OEM genuine part houses the brake disc pack and actuation mechanism, converting hydraulic pressure into mechanical braking force directly at the wheel end. As a load-bearing hub, it also supports the axle shaft and ensures precise alignment of the braking system. The SKU 5838.300.215 is engineered to ZF’s original tolerances, guaranteeing a direct bolt-on replacement without modification. It integrates seamlessly with the 5838022003: REAR AXLE and the 5838109001: DIFFERENTIAL to maintain driveline integrity under extreme loads.
Symptoms of Failure
- Brake drag or overheating: A worn brake carrier can warp or develop internal cracks, causing the brake discs to bind. This leads to excessive heat generation and reduced fuel efficiency.
- Oil seepage at the wheel hub: Degraded sealing surfaces on the carrier allow transmission fluid to escape, often visible as drips near the axle flange. This is a common long-tail search query for “ZF brake carrier oil leak.”
- Intermittent brake fade or spongy pedal feel: If the carrier’s piston bore becomes scored or corroded, hydraulic pressure bleeds past seals, resulting in inconsistent braking force during heavy loading cycles.
- Unusual grinding noises during turns: A misaligned carrier can cause the brake pack to contact the 5838300128: DIFFERENTIAL HOUSING, producing metallic scraping sounds under articulation.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 5838.300.215 |
| Material | Ductile cast iron (GJS-500-7) |
| Overall Diameter | 320 mm |
| Mounting Bolt Pattern | 12 x M16 on 280 mm PCD |
| Weight | 14.2 kg (31.3 lbs) |
| OEM Reference | ZF 5838.300.215 |
| Surface Treatment | Zinc-phosphate coated |
Compatibility
This brake carrier is designed for ZF’s WG series powershift transmissions commonly used in wheel loaders and graders. It directly fits the following models: WG180, WG200, WG210, and WG250. It also integrates with the 0750117075: TAPER ROLLER BEARING which supports axial loads within the carrier bore. For complete axle rebuilds, pair this carrier with the 5838022003: REAR AXLE assembly and the 5838109001: DIFFERENTIAL unit to restore factory performance.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838022003 | REAR AXLE | Transmits torque from differential to wheel hubs |
| 5838109001 | DIFFERENTIAL | Distributes power between left and right wheels |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads in carrier housing |
| 5838300128 | DIFFERENTIAL HOUSING | Encloses differential gears and ring gear |
| 0631329086 | SPRING PIN | Secures brake carrier to axle housing |
| 5838300129 | THRUST WASHER | Controls axial clearance in differential assembly |
| 5838300130 | THRUST WASHER | Secondary axial spacer for bevel gear set |
| 5838300131 | AXLE BEVEL GEAR | Transfers power from pinion to differential |
| 5838300132 | COMPENS. STUB AXLE | Connects differential side gear to axle shaft |
| 5838300133 | COMPENS. STUB AXLE | Opposite-side stub axle for balanced load distribution |
