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ZF 0091304054 4th Speed Gear 31T – OEM Replacement ZF Transmission Parts Trusted ZF Parts Supplier
- 24/7 order processing with DHL/FedEx express options.
- In-stock availability for urgent repairs.
- Free technical guidance on installation and compatibility
- P/N:0091304054
Maximize Transmission Performance with the ZF 0091304054 4th Speed Gear (31 Teeth)
Ensure smooth shifting and long-term reliability in your ZF gearbox with the ZF 0091304054 4th Speed Gear – 31T, a precision-engineered component designed for perfect integration into ZF mechanical and automated transmissions. As a trusted ZF parts supplier, we deliver OEM-spec gears that meet strict German engineering standards, ensuring durability, noise reduction, and optimal power transfer.
This high-strength 4th speed gear is ideal for use in commercial trucks, buses, coaches, and industrial machinery equipped with ZF S5, S6, Ecomat, or AS Tronic series transmissions. Whether you’re rebuilding a worn transmission or replacing damaged internal components, this gear ensures precise meshing and reduced wear on countershaft and mainshaft assemblies.
🔧 Part Number: ZF TRANSMISSIONS 0091304054
🔩 Type: 4th Speed Gear – 31 Teeth (31T)
🚛 Compatible With: ZF S5/S6, Ecomat, AS Tronic, 6HP Series
🏭 Quality: OEM Equivalent | Heat-Treated Alloy Steel Construction
We are a leading ZF parts dealer serving customers across North America, Europe, Asia, Africa, and Australia. With fast dispatch, technical support, and bulk pricing, we make it easy to source authentic ZF gearbox parts — because every repair deserves genuine performance.


Product Overview
| Feature | Specification |
|---|---|
| Part Number | ZF 0091304054 / 009 1303 054 |
| Description | 4th Speed Gear – 31 Teeth (31T) |
| Application | ZF S5, S6, Ecomat, AS Tronic Transmissions |
| Material | 20MnCr5 Alloy Steel, Induction Hardened |
| Surface Hardness | HRC 58–62 |
| Precision Machining | CNC Ground Teeth for Smooth Engagement |
| Noise & Vibration Control | Optimized Tooth Profile Design |
| Compliance | Meets ZF Original Drawings & ISO Standards |
Installation Tip: Before installing the ZF 0091304054 4th speed gear, clean all mating surfaces and inspect synchronizer rings, splines, and shafts for wear. Apply recommended ZF transmission oil (e.g., ZF EcoFluid X) to the bore and spline area to ensure smooth installation and prevent galling.
Packaging & Shipping
By Express : Suitable for sample order or <50 KG Fast:3-10 days High shipping cost Door to door service
By Air : Suitable for >50 KG Fast: 3-7 days Lower than express cost Airport to airport service
By Sea: Suitable for >300 KG Lower cost port to port service


As a leading supplier and dealer of ZF parts, we provide genuine components to maintain the integrity and efficiency of your gearbox system. Trust in our expertise and quality assurance to keep your ZF gearbox running smoothly.
| Installation Tips | Surface prep: Degrease with ZF Cliclean 3 solvent; Gasket application: Use Loctite 518 in continuous 1.5mm bead;; Alignment: Install using factory alignment pins (ZF tool B40 5003 recommended);; Torque sequence:Initial: 12Nm star pattern—–Final: 28Nm + 90° angle torque;;;; Post-install: Pressure test at 2.5 bar before fluid fill |
|---|
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