ZF Transmission Part 1250 304 306 – Genuine 4th Speed Sliding Sleeve Trusted ZF Parts Dealer
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High-Performance ZF Part: 1250 304 306 Sliding Sleeve for 4th Speed
As a premier ZF parts dealer, we provide high-precision components designed to maintain the integrity of your transmission system. The ZF part 1250 304 306 is a critical 4th-speed sliding sleeve engineered for seamless gear synchronization and shift accuracy.
Whether you are a repair shop or a fleet manager, sourcing from a reliable ZF parts supplier ensures that you receive OEM-quality components that prevent premature transmission wear and reduce downtime. This sliding sleeve is manufactured to meet the exact tolerances required by ZF gearboxes, ensuring smooth engagement and long-term reliability in heavy-duty applications.
Technical Specification
| Feature | Details |
| Brand | ZF (Zahnradfabrik Friedrichshafen) |
| Part Number | 1250 304 306 (1250304306) |
| Component Name | Sliding Sleeve (Synchronizer Hub) |
| Gear Position | 4th Speed |
| Material | High-Grade Hardened Steel Alloy |
| Application | ZF Manual/Automated Transmissions |
Simple Install Tips
To ensure the longevity of your ZF parts, follow these professional installation guidelines:
Thorough Cleaning: Before installation, ensure the main shaft and neighboring synchro rings are free of debris and old metallic particles.
Orientation Check: The 1250 304 306 sliding sleeve is directional. Verify the internal splines and grooves match the 4th-speed gear hub alignment marks.
Lubrication: Apply a thin layer of approved ZF transmission fluid to the sliding surfaces to prevent “dry friction” during the first startup.
Synchronizer Alignment: Ensure the synchronizer keys (struts) are correctly seated in the sleeve notches before sliding the unit into place.
Professional Tools: Always use a torque wrench and proper gear pullers to avoid micro-cracks in the steel alloy.
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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