Introduction

The 16133-1 FAST Fork Shaft is an essential core shifting part for FAST heavy-duty truck gearboxes. It serves as the main control shaft of the gearbox shifting mechanism, responsible for driving the shift fork to move accurately, completing gear engagement and disengagement, and realizing precise gear shifting operations. Manufactured with high-strength alloy steel and integrated precision machining and heat treatment technology, this fork shaft features high rigidity, low deformation rate and excellent wear resistance. It effectively solves common gearbox faults such as stuck shifting, unsmooth gear switching, loose shifting position and abnormal shifting noise caused by worn, bent or stuck original fork shafts. It maintains stable and flexible shifting performance during frequent gear changes and long-term heavy-load driving, being a reliable OEM replacement part for FAST gearbox repair and routine maintenance.

Key Features

✅️100% OEM Exact Fit 

Produced strictly in accordance with FAST gearbox original factory standards with standard part number 16133-1. The shaft diameter, overall length, positioning groove size and mounting tolerance fully match original gearbox parameters. No modification or adjustment is required for direct installation, perfectly compatible with supporting FAST heavy-duty truck gearbox models.

✅️High-Strength Alloy Steel Structure 

Adopts premium alloy steel raw materials with integral forging and precise quenching and tempering treatment. The fork shaft body owns outstanding rigidity and bending resistance, which can effectively resist extrusion friction and mechanical impact during frequent shifting operations. It is not easy to bend, deform or wear even under long-term high-intensity working conditions.

✅️Precision Machining & Flexible Shifting 

Adopts advanced CNC precision grinding and finishing process. The shaft surface is smooth with accurate positioning groove and hole spacing, ensuring flexible and unobstructed sliding movement. It effectively avoids shifting jamming and stagnation, makes gear switching more sensitive and smooth, and greatly improves vehicle driving controllability.

✅️Superior Wear & Fatigue Resistance 

Professional surface strengthening treatment enhances overall wear resistance and anti-fatigue performance. It adapts to long-term frequent shifting, high-frequency vibration and heavy-load operation of heavy trucks, delays component aging, and effectively reduces gearbox shifting mechanism failure rate.

✅️Effectively Fix Common Gearbox Faults 

Standard dimensional accuracy and stable structural performance thoroughly solve typical problems such as difficult shifting, gear disengagement, shifting deviation and abnormal gearbox noise caused by damaged fork shaft. It completely restores the original precise shifting function of the gearbox.

✅️Cost-Effective Aftermarket Spare Parts 

Factory direct supply with strict dimensional inspection and performance testing, achieving OEM equivalent quality at a competitive price. Widely applicable to heavy-duty trucks equipped with FAST gearboxes, it is a popular wholesale and maintenance part for repair shops, fleets and global aftermarket markets in Middle East, Africa and Central Asia.

Detail

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Contact with clear photo of engine nameplate or chassis number:

Linda Zhang

Whatsapp:+86 176 6066 8410

EMAIL:sales16@chinatruck.cc