Overview
The ZF 2093.310.070 GEAR SHIFT RAIL is a precision-machined component engineered for the WG100, WG130, and WG131 heavy-duty transmission series. This OEM genuine part, identified by SKU 2093.310.070, serves as the primary linear actuator within the shift mechanism, translating driver input into precise fork movement for gear engagement. Positioned inside the transmission housing, it interfaces directly with the shift forks and detent springs to ensure smooth, positive gear selection under high-torque conditions. When paired with a properly functioning DIFFERENTIAL HOUSING, this rail maintains the structural alignment necessary for consistent shifting performance across all load ranges.
Symptoms of Failure
- Hard shifting or gear lockout: A worn shift rail develops burrs or pitting on its surface, causing the shift fork to bind. This results in difficulty engaging gears, particularly in cold-start conditions.
- Transmission jumping out of gear: When the rail’s detent grooves wear unevenly, the spring-loaded ball can no longer hold the fork in position, leading to unexpected gear disengagement under load.
- Metallic grinding noise during shifts: A bent or cracked shift rail allows the fork to misalign with the synchronizer, producing a harsh grinding sound that worsens with each shift cycle.
- Oil contamination from internal debris: As the rail surface flakes, metallic particles circulate through the lubrication system, accelerating wear on the TAPER ROLLER BEARING and other rotating assemblies.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 2093.310.070 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Overall Length | 385 mm ± 0.5 mm |
| Rail Diameter | 22 mm (ground finish) |
| Detent Groove Depth | 2.5 mm (Rockwell C 58-62) |
| Weight | 1.42 kg (3.13 lbs) |
| OEM Reference | ZF 2093.310.070 |
| Surface Treatment | Manganese phosphate + oil dip |
Compatibility
This shift rail is specifically designed for ZF’s WG-series modular transmissions. Verified compatible models include WG100, WG130, WG131, WG180, and WG200 series. It also fits select WG121 variants produced after 2015. For optimal shift quality, always replace the rail alongside the SPRING PIN that secures the fork to the rail. In differential-equipped configurations, the rail works in concert with the DIFFERENTIAL and DIFFERENTIAL to distribute torque evenly during gear changes.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes engine torque between drive wheels |
| 0750117075 | TAPER ROLLER BEARING | Supports axial and radial loads on rotating shafts |
| 2093209023 | DIFFERENTIAL | Secondary torque-splitting unit for tandem axles |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses and aligns differential gear sets |
| 0631329088 | SPRING PIN | Locks shift fork to rail without threaded fasteners |
| 5838300811 | THRUST WASHER | Controls axial clearance in gear stack |
| 5838300721 | AXLE BEVEL GEAR | Transfers power 90° from differential to axle shafts |
| 5838300633 | AXLE | Rotates to drive wheel hubs |
| 5838300753 | THRUST WASHER | Reduces friction between rotating gears |
| 5838300818 | THRUST WASHER | Prevents gear-to-housing contact under load |
Frequently Asked Questions
Q: Can I install this shift rail without removing the transmission from the vehicle?
A: No. The rail is accessed only after the transmission is removed and the rear housing is unbolted. We recommend replacing the THRUST WASHER and THRUST WASHER during the same service interval to prevent future misalignment.
Q: How do I confirm this rail fits my WG130 transmission?
A: Verify the casting number on your transmission’s main case. WG130 units with serial numbers starting with “ZF-7” use this rail. Cross-reference with the AXLE BEVEL GEAR part number to ensure the entire shift assembly matches.
Q: What torque should be applied to the shift rail retaining bolt?
A: The retaining bolt (not included) requires 45 Nm ± 5 Nm. Over-torquing can distort the rail and cause binding. Always use a new SPRING PIN to secure the fork.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
ZF 2093.310.070 GEAR SHIFT RAIL – Gear RFQ Support
PartsZF helps B2B buyers source ZF 2093.310.070 GEAR SHIFT RAIL 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 2093.310.070 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
- Illustration section: KIT 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 | 2093.310.070 |
|---|---|
| Normalized SKU | 2093310070 |
| Part name | GEAR SHIFT RAIL |
| Product category | gear |
| Cross-reference support | Available for RFQ review |
| Weight | 0.309 |
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
