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ZF Part 1250312126 Intermediate Shaft 19 T. – Genuine ZF Gearbox Parts from Leading 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:1250312126
ZF Part 1250312126 Intermediate Shaft 19 T. – Genuine ZF Gearbox Parts from Leading ZF Parts Supplier


The 1250312126 Intermediate Shaft is engineered to bridge the torque between the input and output stages of your gearbox.
OEM Quality: Manufactured to the strict tolerances required by ZF engineering standards.
Enhanced Durability: Case-hardened 19-tooth profile resists chipping and surface fatigue.
Global Reliability: Trusted by mechanics and fleet owners searching for high-performance zf gearbox parts.
Direct Replacement: Guaranteed compatibility with specific ZF transmission models, ensuring zero-modification installation.
Technical Specification
| Feature | Specification |
| Product Name | Intermediate Shaft (19 Teeth) |
| ZF Part Number | 1250312126 / 1250.312.126 |
| Teeth Count | 19 T. |
| Component Category | ZF Gearbox Parts / Transmission Internals |
| Material | High-Grade Forged Steel (Case Hardened) |
| Precision Class | DIN Standard 6-7 Gear Quality |
| Surface Finish | Anti-corrosive / Polished Gear Teeth |
| Application | Heavy-duty ZF manual and automated gearboxes |
Simple Install Tip:
Check Bearing Clearances: Before installing the 1250312126 shaft, always replace the supporting needle bearings or tapered roller bearings. Worn bearings are the leading cause of intermediate shaft failure.
Thermal Fitting: If fitting gears or bearings onto the shaft, use a professional induction heater or a temperature-controlled oven. Never use a hammer directly on the shaft surfaces.
End-Play Adjustment: As an experienced ZF parts dealer, we recommend measuring the axial end-play precisely using a dial indicator to ensure the shaft sits correctly within the transmission housing.
Lube on Contact: Apply a high-pressure assembly lubricant to the 19T gear teeth during assembly to protect the metal during the initial startup before the oil pump circulates fluid.
Seal Inspection: Always use new gaskets and oil seals during the reassembly of ZF gearbox parts to prevent leaks that can lead to overheating.
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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