ZF 3rd Speed Gear (33 Teeth) for Transmission – Genuine Part 1272304139

ZF 3rd Speed Gear (33 Teeth) for Transmission – Genuine Part 1272304139

Technical Specification

The ZF 3rd Speed Gear (33 Teeth), identified by part number 1272304139, is a critical high-precision component within the ZF manual transmission assembly. Positioned to handle the significant mid-range torque required for heavy-duty vehicle acceleration, this 33-tooth gear is built to withstand extreme mechanical stress while maintaining smooth engagement.

Simple Install Tip:

• Synchronizer Matching: When installing the 3rd speed gear (1272304139), always inspect the 3rd/4th gear synchronizer hub and sliding sleeve. Uneven wear on these components can cause the new gear to “jump” or grind during shifting.

• Axial Clearance Check: After mounting the gear on the main shaft, use a feeler gauge to verify the axial play (clearance) as specified in the ZF service manual. Incorrect clearance can lead to overheating.

• Spline Inspection: Before sliding the gear into place, ensure the main shaft splines are clean and lubricated. Any debris can prevent the gear from seating correctly.

• Seal Replacement: It is a best practice to replace the transmission input and output seals whenever the gearbox is opened to replace internal gears like the 1272304139.

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.