Overview
The ZF 4108.016.057 P 4300 is a critical OEM genuine component engineered for the high-torque planetary sections of heavy-duty construction machinery transmissions. This part functions as a precision-machined spacer and alignment element within the clutch pack assembly, ensuring correct axial clearance and load distribution during gear engagement. Designated under SKU 4108.016.057, it sits directly between the piston housing and the friction disc stack in the forward clutch drum. When installed alongside the 4108101066 HOUSING and the 4108201298 HOUSING, this part maintains the hydraulic seal integrity required for consistent shift quality in demanding excavator and wheel loader applications.
Symptoms of Failure
- Delayed or harsh forward engagement: When the 4108.016.057 spacer wears or deforms, clutch pack clearance increases, causing a noticeable lag or “clunk” when shifting from neutral to drive. This is a common search query for “ZF transmission slow engagement fix.”
- Low hydraulic pressure in forward clutch circuit: A worn part can allow oil to bypass the piston seal, leading to pressure drops. Operators may see “transmission slipping under load” on diagnostic tools.
- Metallic debris in transmission oil filter: Abrasion of the hardened steel surface generates fine metal particles. This symptom often triggers searches for “ZF transmission metal shavings in oil.”
- Overheating in the clutch housing area: Excessive clearance causes continuous slip, generating heat. This is frequently reported alongside a failing 0501325471 SEALING RING.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number / SKU | 4108.016.057 (P 4300) |
| Material | Case-hardened alloy steel (DIN 1.7131) |
| Outer Diameter | 180.0 mm (7.09 in) |
| Inner Diameter | 140.0 mm (5.51 in) |
| Thickness | 4.5 mm (0.177 in) |
| Weight | 0.42 kg (0.93 lb) |
| OEM Reference | ZF P 4300 / 4108.016.057 |
| Surface Hardness | 58-62 HRC |
Compatibility
This genuine ZF spacer is designed for use in the following transmission models commonly found in construction machinery:
- ZF WG180 – Used in mid-size wheel loaders (e.g., 3-4 ton class)
- ZF WG200 – Applied in heavy excavators and graders
- ZF 4WG200 – Powershift variant for articulated dump trucks
- ZF 6WG250 – High-torque version for large mining loaders
Always verify the part number against your transmission’s serial plate. For correct assembly, pair this component with the 0501215601 OIL LEVEL GAGE to confirm proper fluid height after installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4108101066 | HOUSING | Encloses the forward clutch drum assembly |
| 4108201298 | HOUSING | Rear housing for planetary gear set |
| 0501215601 | OIL LEVEL GAGE | Dipstick for transmission fluid level check |
| 0501325471 | SEALING RING | Prevents oil leakage between piston and drum |
| 0730365280 | TYPE PLATE | Identification tag for transmission model |
| 4108301475 | INPUT SHAFT | Transfers torque from engine to transmission |
| 0750116277 | BALL BEARING | Supports rotating shaft loads |
| 0630502039 | RETAINING RING | Secures bearing in housing bore |
| 0630531064 | RETAINING RING | External snap ring for shaft retention |
| 0636302014 | SCREW PLUG | Seals hydraulic test ports |
