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ZF Main Shaft 1250 304 474 for Heavy-Duty Transmissions Genuine ZF Parts Dealer & 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:1250 304 474
ZF Part: 1250 304 473 Heavy-Duty Main Shaft
The 1250 304 473 Main Shaft is the backbone of the transmission system, engineered to handle extreme torque and facilitate smooth power transfer between gears. As a specialized ZF parts dealer, we understand that the main shaft is critical to the structural integrity of your gearbox.


Technical Specification
| Feature | Details |
| Brand | ZF (Genuine OEM) |
| Part Number | 1250 304 474 (1250304474) |
| Component Category | Transmission Main Shaft / Output Shaft |
| Material | Premium Forged Alloy Steel |
| Surface Treatment | Case-Hardened for Wear Resistance |
| Compatibility | ZF Ecosplit, AS Tronic, and 9S/16S Series |
| Weight | 14.5 kg |
Simple Install Tips
To ensure the best performance from your ZF parts, our technical team recommends the following during the installation of the 1250 304 473 shaft:
Bearing Inspection: Always replace the main shaft bearings (front and rear) when installing a new shaft. Reusing old bearings can cause shaft misalignment.
Spline Lubrication: Apply a high-pressure molybdenum disulfide grease to the splines before assembly to prevent “fretting corrosion.”
End-Play Measurement: After assembly, use a dial indicator to check the axial end-play. Correct shimming is vital to prevent gear noise or premature failure.
Seal Protection: Use a protective sleeve over the shaft splines when sliding on the oil seals to avoid cutting the rubber lip.
Cleanliness: Even microscopic metal shavings can ruin a new ZF part. Ensure the gearbox housing is chemically cleaned before reassembly
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.
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