Overview
The ZF 4143.351.074 OUTER CLUTCH DISK is a critical friction component engineered for the HL 100 and HL 270 series transmissions. This OEM genuine part sits within the clutch pack assembly, where it interfaces directly with the inner hub to transfer torque during gear engagement. Designed to withstand high thermal loads and repetitive cycling, the 4143.351.074 ensures smooth power delivery and precise clutch modulation. When installed alongside the 4143101025 HOUSING and 4143301055 HOUSING, this outer disk maintains proper clearance and hydraulic pressure within the clutch drum. The SKU 4143.351.074 is a direct replacement for original equipment, guaranteeing dimensional accuracy and material composition that matches factory specifications.
Symptoms of Failure
- Delayed gear engagement or slipping: When the outer clutch disk wears thin, hydraulic pressure cannot fully clamp the pack, causing hesitation when shifting from neutral to drive or reverse.
- Burning smell from transmission fluid: Friction material degradation produces a distinct acrid odor, often accompanied by dark, gritty fluid indicating excessive clutch plate wear.
- Erratic shift quality or harsh engagement: Worn disks cause inconsistent clamping force, leading to jarring shifts or unexpected surging during acceleration.
- Visible metallic debris in the oil pan: Advanced wear releases steel particles from the disk core, which can clog the valve body and damage the 0631329135 SPRING PIN and other hydraulic components.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4143.351.074 |
| Outer Diameter | 174 mm (estimated) |
| Inner Diameter | 128 mm (estimated) |
| Thickness (new) | 2.5 mm ± 0.1 mm |
| Material | Steel core with sintered bronze friction lining |
| Weight | 0.35 kg (0.77 lbs) |
| OEM Reference | ZF 4143.351.074 |
| Application | HL 100 / HL 270 series |
Compatibility
This outer clutch disk is specifically validated for ZF HL 100 and HL 270 series transmissions, commonly found in industrial forklifts, telehandlers, and construction machinery. It is also compatible with select WG180 and WG200 models that share the same clutch pack architecture. For proper assembly, ensure the 4143298040 CASE is free of scoring and that all hydraulic passages are clear. The disk works in conjunction with the 0501337904 SPEED SENSOR to monitor clutch slip rates, and the 0636101024 CAP SCREW secures the clutch drum assembly. Always verify your transmission model number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4143101025 | HOUSING | Encloses clutch pack and directs oil flow |
| 4143301055 | HOUSING | Supports outer clutch disk and seals hydraulic circuit |
| 4143298040 | CASE | Main structural housing for transmission assembly |
| 0631329135 | SPRING PIN | Retains clutch pack components during operation |
| 0501337904 | SPEED SENSOR | Monitors clutch drum rotation for shift timing |
| 0636101024 | CAP SCREW | Secures clutch drum to transmission shaft |
| 4475280099 | SCREW PLUG | Seals hydraulic test ports on valve body |
| 0634303266 | O-RING | Prevents fluid leaks between clutch housing sections |
| 0501200072 | VENT VALVE | Relieves internal pressure to prevent seal damage |
| 4475280015 | SCREW PLUG | Drain plug for transmission oil pan |
ZF 4143.351.074 OUTER CLUTCH DISK – Clutch Disk RFQ Support
PartsZF helps B2B buyers source ZF 4143.351.074 OUTER CLUTCH DISK with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This clutch disk page is built from confirmed catalog, media, and reference data to reduce sourcing uncertainty for construction machinery transmission parts.
Part-Number Summary
Use ZF number 4143.351.074 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: MULTIDISK BRAKE
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 | 4143.351.074 |
|---|---|
| Normalized SKU | 4143351074 |
| Part name | OUTER CLUTCH DISK |
| Product category | clutch disk |
| Cross-reference support | Available for RFQ review |
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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