Overview
The ZF 2093.298.145 GEAR is a precision-machined helical gear designed for the auxiliary drive and power take-off (PTO) circuits within ZF WG100, WG130, and WG131 transmissions. This OEM genuine part transfers rotational torque from the input shaft to the hydraulic pump drive, ensuring consistent oil flow for clutch actuation and lubrication. The SKU 2093.298.145 sits directly on the countershaft assembly, meshing with the main drive gear to regulate speed reduction. When paired with a robust HOUSING, this gear maintains precise axial alignment, preventing premature wear on adjacent bearings. Its case-hardened alloy steel construction withstands high cyclic loads, making it a critical component for long-haul commercial vehicle transmissions.
Symptoms of Failure
- Whining or howling noise during acceleration: Worn gear teeth on the 2093.298.145 produce a distinct high-pitched whine that intensifies under load, often misdiagnosed as a bearing issue.
- Intermittent PTO engagement failure: Chipped or pitted teeth cause the gear to skip, preventing the power take-off unit from locking into place reliably.
- Metallic debris in transmission oil pan: Flaking from the gear’s hardened surface contaminates the hydraulic circuit, accelerating wear on the TAPPET SWITCH and valve body.
- Oil aeration and foaming: Excessive gear backlash disrupts pump suction, introducing air bubbles into the transmission fluid and causing erratic shift quality.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 2093.298.145 |
| Gear Type | Helical, 20° pressure angle |
| Outside Diameter | 98.4 mm (3.87 in) |
| Face Width | 28.5 mm (1.12 in) |
| Bore Diameter | 25.0 mm (0.98 in) |
| Material | Case-hardened 20MnCr5 alloy steel |
| Weight | 0.62 kg (1.37 lbs) |
| OEM Reference | ZF 2093.298.145 |
| Heat Treatment | Carburized & tempered to 58-62 HRC |
Compatibility
This OEM gear is engineered for ZF’s WG-series industrial transmissions, specifically the WG100, WG130, and WG131 models used in municipal trucks, airport ground support equipment, and agricultural spreaders. It also fits select WG180 and WG200 variants when used with the correct TRANSMISSION HOUSING (part 2093301069) or the reinforced TRANSMISSION HOUSING (part 2093298063). Always verify the gear’s tooth count (typically 32 teeth) against your existing assembly before installation. For PTO-driven applications, confirm that the output shaft spline count matches your pump coupler.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093101051 | HOUSING | Encloses the gear set and supports bearing preload |
| 2093301069 | TRANSMISSION HOUSING | Main structural casing for WG130/WG131 models |
| 2093298063 | TRANSMISSION HOUSING | Reinforced housing for high-torque WG180 applications |
| 0501209878 | TAPPET SWITCH | Monitors gear position for PTO engagement signal |
| 0730365092 | TYPE PLATE | Identification label with transmission serial number |
| 4475280150 | SCREW PLUG | Seals oil gallery access ports on the housing |
| 0634304731 | O-RING | Hydraulic seal between gear hub and shaft |
| 2093301033 | COVER | Protects the gear cavity from debris ingress |
| 0636015073 | HEXAGON SCREW | M10 fastener securing the gear to the shaft |
| 0634314235 | O-RING | Static seal for the transmission housing joint |
Frequently Asked Questions
Q: Can the 2093.298.145 gear be used in a ZF WG180 transmission without modification?
A: Yes, but only if the transmission is equipped with the reinforced TRANSMISSION HOUSING (part 2093298063). The gear’s helix angle and bore diameter are identical across WG100 through WG200 series, though the countershaft length may differ in early WG180 builds.
Q: What torque specification should be used for the hexagon screw (0636015073) when installing this gear?
A: Tighten the M10 hexagon screw to 45 Nm (33 ft-lbs) using a thread-locking compound. Over-torquing can distort the gear bore and cause premature failure of the O-RING (0634304731) seal.
Q: How can I verify if my 2093.298.145 gear has excessive wear without removing the transmission?
A: Measure the backlash between this gear and its mating pinion using a dial indicator. Acceptable clearance is 0.08–0.15 mm. Readings above 0.25 mm indicate tooth wear that will soon affect the TAPPET SWITCH timing.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
ZF 2093.298.145 GEAR – Gear RFQ Support
Use ZF 2093.298.145 GEAR as the reference when requesting gear support. Photos, visible markings, and transmission context help reduce sourcing uncertainty.
Part-Number Summary
Use ZF number 2093.298.145 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: KIT GEAR
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 | 2093.298.145 |
|---|---|
| Normalized SKU | 2093298145 |
| Part name | GEAR |
| Product category | gear |
| RFQ support | Part-number lookup and documentation review |
| Media support | Product photo or diagram review when available |
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 4661.302.010 GEAR
- ZF 2094.306.024 GEAR SHIFT RAIL
- ZF 4642.353.026 SPUR GEAR
- ZF 4143.142.013 GEAR SHIFT SENSOR
- ZF 4143.142.022 GEAR SHIFT SENSOR
