ZF TRANSMISSIONS 1290306423 SLIDE – Precision Shift Collar for ZF Synchronizer Assemblies
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- In-stock availability for urgent repairs.
- Free technical guidance on installation and compatibility
- P/N:1290306423
ZF TRANSMISSIONS 1290306423 SLIDE – Precision Shift Collar for ZF Synchronizer Assemblies
Product Overview
The ZF TRANSMISSIONS 1290306423 SLIDE is an OEM-quality synchronizer sliding collar designed for ZF manual transmissions. This critical shift component engages gear teeth during speed synchronization in ZF S6-53 and S6-65 gearboxes. Manufactured from case-hardened 16MnCr5 steel with precision-machined internal splines (±0.01mm tolerance), it ensures smooth gear engagement and extended service life in heavy-duty applications.
Key Features:
✔ Genuine OEM Replacement – Identical to ZF 1290306423 specifications
✔ Wear-Resistant Design – 0.6-1.0mm case depth (HRC 56-60)
✔ Precision Splines – 36T SAE J498 standard
✔ Optimized Geometry – Chamfered edges for smooth shifting
✔ Application-Specific – For ZF 6-speed manual transmissions
Technical Specifications:
- Part Number: 1290306423
- Type: Synchronizer sliding collar
- Material: 16MnCr5 case-hardened steel
- Spline Count: 36 teeth
- Major Diameter: 72.00mm (±0.02)
- Width: 28.50mm (±0.05)
- Hardness:
- Core: 28-32 HRC
- Surface: 56-60 HRC
- Runout Tolerance: ≤0.02mm TIR
- Surface Finish: Ground to Ra 0.8μm
- OEM Reference: ZF 1290306423
Professional Installation Guide:
Pre-Installation Checks:
- Inspect synchronizer hub for wear (max 0.05mm play)
- Verify shift fork condition
- Clean all components with brake cleaner
Installation Tools Required:
- Bearing press with alignment mandrel
- Dial indicator (±0.01mm accuracy)
- Torque wrench (50-200Nm range)
Installation Procedure:
- Align slide splines with hub (match timing marks)
- Press onto synchronizer assembly (max 3kN force)
- Torque retaining bolts to 80Nm ±5%
- Verify free axial movement (0.5-1.0mm travel)
Post-Installation Verification:
- Check shift effort (15-25N per ZF spec)
- Test all gear engagements
- Perform 500km break-in period
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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