Overview
The ZF 2093.310.012 SPUR GEAR is a precision-machined component engineered for the auxiliary drive and power take-off (PTO) circuits within ZF WG100, WG130, and WG131 transmissions. This OEM genuine part transfers rotational force from the input shaft to the differential assembly, ensuring smooth torque distribution under heavy loads. The SKU 2093.310.012 sits directly on the countershaft, meshing with the 5838109012: DIFFERENTIAL to modulate gear ratios during low-speed maneuvers. Its helical tooth profile reduces noise and vibration, making it critical for long-haul and off-highway applications.
Symptoms of Failure
- Whining or howling noise during deceleration: Worn tooth flanks on the spur gear create uneven contact, producing a distinct metallic whine that intensifies when the transmission downshifts.
- Intermittent gear slipping under load: A chipped or pitted 2093.310.012 spur gear loses engagement with the 2093209023: DIFFERENTIAL, causing momentary power loss when climbing grades or towing.
- Metal particles in transmission fluid: Advanced spalling from the spur gear’s hardened surface contaminates the oil, often visible as glitter during routine drain intervals.
- Hard shifting between ranges: A damaged gear prevents proper synchronization, requiring excessive force to engage forward or reverse gears.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2093.310.012 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Number of Teeth | 29 |
| Module | 4.5 mm |
| Pressure Angle | 20° |
| Outer Diameter | 139.5 mm |
| Bore Diameter | 35 mm |
| Face Width | 28 mm |
| Weight | 1.85 kg |
| OEM Reference | 2093.310.012 (ZF genuine) |
Compatibility
This spur gear is designed exclusively for ZF WG-series transmissions with a 100–131 mm center distance. Verified compatible models include WG100, WG130, and WG131. It also fits select WG180 and WG200 variants when used with the 5838300626: DIFFERENTIAL HOUSING and the 0750117075: TAPER ROLLER BEARING for proper axial support. Always verify your transmission’s serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque to output shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports spur gear axial loads |
| 2093209023 | DIFFERENTIAL | Secondary differential for PTO drive |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses gear set and bearings |
| 0631329088 | SPRING PIN | Secures gear to shaft |
| 5838300811 | THRUST WASHER | Controls axial clearance |
| 5838300721 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 5838300633 | AXLE | Carries rotating assembly |
| 5838300753 | THRUST WASHER | Reduces friction on gear face |
| 5838300818 | THRUST WASHER | Secondary axial load management |
Frequently Asked Questions
Q: Can I replace just the spur gear without replacing the differential?
A: Yes, but we strongly recommend inspecting the 5838109012: DIFFERENTIAL for matching wear patterns. A worn differential will accelerate damage to a new spur gear.
Q: What torque specification applies to the retaining nut for this gear?
A: ZF specifies 180 N·m for the shaft nut when paired with the 0750117075: TAPER ROLLER BEARING. Always use a new spring pin (part 0631329088) during reassembly.
Q: Does this gear require a break-in period?
A: No break-in is needed for OEM genuine parts. However, perform a 50-km light-load run to allow the 5838300626: DIFFERENTIAL HOUSING seals to seat properly.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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ZF 2093.310.012 SPUR GEAR – Gear RFQ Support
PartsZF helps B2B buyers source ZF 2093.310.012 SPUR GEAR with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This gear 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 2093.310.012 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: P.T.O. SHAFT
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 | 2093.310.012 |
|---|---|
| Normalized SKU | 2093310012 |
| Part name | SPUR GEAR |
| Product category | gear |
| Cross-reference support | Available for RFQ review |
| Weight | 1.15 |
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.
Related Parts
- ZF 4646.302.128 HELICAL GEAR
- ZF 4143.316.088 PINION
- ZF 4657.302.007 INPUT GEAR
- ZF 4657.354.044 OUTPUT GEAR
- ZF 4644.306.326 GEAR SHIFT HOUSING
