Overview
The ZF 0750.140.049 INNER CLUTCH DISK is a critical friction component engineered for the WG100, WG130, and WG131 series transmissions. This OEM genuine part sits within the clutch pack assembly, where it transfers torque from the engine to the gearbox input shaft by engaging and disengaging the drive under hydraulic pressure. The SKU 0750.140.049 is precision-machined to OEM tolerances, ensuring consistent clamping force and smooth power delivery during gear shifts. When installed alongside a properly aligned MAIN SHAFT (2094104412), this disk maintains the axial clearance required for reliable clutch engagement in heavy-duty industrial applications.
Symptoms of Failure
- Delayed or harsh gear engagement: A worn inner clutch disk causes hesitation or a jarring “clunk” when shifting from neutral to drive, as the friction material can no longer grip effectively.
- Transmission oil overheating: Slipping of the 0750.140.049 disk generates excessive heat, leading to burnt-smelling fluid and potential damage to the MAIN SHAFT (2094304054) from thermal expansion.
- Loss of power under load: When climbing grades or hauling heavy loads, the transmission may rev higher than expected without proportional acceleration, indicating the clutch disk is slipping.
- Metallic debris in the oil pan: Advanced wear of the inner clutch disk sheds friction material and steel particles, which can clog the SHIFT SYSTEM (2094106010) valve body and reduce hydraulic pressure.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0750.140.049 |
| OEM Reference | ZF 0750.140.049 |
| Outer Diameter | 180 mm (approx.) |
| Inner Diameter | 140 mm (approx.) |
| Thickness | 3.5 mm (new) |
| Material | Sintered bronze on steel core |
| Weight | 0.45 kg |
| Friction Coefficient | 0.12 (wet, dynamic) |
| Compatible Shaft | GEARSHIFT SHAFT (2094206001) |
Compatibility
This inner clutch disk is specifically designed for ZF WG-series transmissions, including the WG100, WG130, and WG131 models. It is also compatible with the WG180 and WG200 series when used in the forward clutch pack. Always verify the spline count and stack height against your transmission’s service manual. For proper installation, ensure the SHIFT SYSTEM (2094106010) is free of debris and that the main shaft end-play is within spec.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094104412 | MAIN SHAFT | Transfers torque from clutch pack to planetary gears |
| 2094304054 | MAIN SHAFT | Alternate spline configuration for WG130/WG131 |
| 2094106010 | SHIFT SYSTEM | Hydraulic valve body controlling clutch engagement |
| 2094206001 | GEARSHIFT SHAFT | Mechanical link between shift lever and valve body |
| 2094306053 | GEARSHIFT SHAFT | Longer variant for WG180/WG200 applications |
| 0630513070 | SNAP RING | Retains clutch pack on main shaft |
| 2094306019 | WASHER | Thrust washer for axial clearance adjustment |
| 0732040444 | COMPRESSION SPRING | Returns clutch piston to disengaged position |
| 0732040728 | COMPRESSION SPRING | Higher rate spring for heavy-duty clutch packs |
| 2093206001 | BUSH | Guides main shaft through transmission housing |
Frequently Asked Questions
Q: Can I replace just the inner clutch disk (0750.140.049) without changing the steel plates?
A: It is strongly recommended to replace all friction disks and steel separator plates in the same clutch pack to ensure even wear and consistent clamping force. Mixing old and new components often leads to premature failure of the MAIN SHAFT (2094304054) splines.
Q: What is the typical service life of this inner clutch disk in a WG130 transmission?
A: Under normal industrial operating conditions (moderate loads, proper fluid maintenance), the 0750.140.049 disk lasts approximately 3,000 to 5,000 hours. Frequent heavy hauling or contaminated oil can reduce this to 1,500 hours.
Q: How do I verify correct installation of the snap ring (0630513070) after replacing this disk?
A: After assembling the clutch pack, rotate the GEARSHIFT SHAFT (2094206001) by hand to confirm free rotation. The snap ring must seat fully in its groove with no gap; use a feeler gauge to check that axial play is between 0.10 mm and 0.30 mm.
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ZF 0750.140.049 INNER CLUTCH DISK – Clutch Disk RFQ Support
Use ZF 0750.140.049 INNER CLUTCH DISK when preparing clutch-pack sourcing requests. PartsZF can review the number, related parts, and documentation requirements before quotation.
Part-Number Summary
Use ZF number 0750.140.049 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: DRIVE CLUTCH
- Illustration section: MAIN CLUTCH
Cross Reference Support
If you have an OEM number, old supplier number, or visible marking, include it with your RFQ so PartsZF can compare it with the available records.
Specification Snapshot
| ZF part number | 0750.140.049 |
|---|---|
| Normalized SKU | 0750140049 |
| Part name | INNER CLUTCH DISK |
| Product category | clutch disk |
| RFQ support | Part-number lookup and documentation review |
| Media support | Product photo or diagram review when available |
| Weight | 0.465 |
Image and Documentation Notes
Current product media status: fallback. Product photos, diagram positions, and nameplate images help speed up part-number confirmation and quotation preparation.
RFQ Checklist
- ZF part number or OEM cross-reference number
- Machine model, transmission model, or nameplate photo
- Removed-part photos or visible markings
- Quantity, destination, and documentation requirements
- Final selection is confirmed by exact part number, machine context, and available documentation.
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