Heavy Truck Gearbox Shift Fork 16775 10018 for Eaton Fuller & ZF Transmissions

Gearbox Shift Fork 16775 10018 for Transmission Heavy Truck

OEM-spec gearbox shift fork 16775 10018 for heavy truck transmissions. Durable forged steel, precise fit, long service life. In stock for major truck brands.

• machining with precision grinding on fork fingers

Dimensional Data

• Overall Length: 285 mm ± 0.5 mm

• Fork Width (inner span): 78.5 mm

• Fork Thickness: 12.0 mm

• Mounting Hole Diameter: 18.0 mm (slotted for adjustment)

• Shift Rail Groove Width: 8.2 mm

• Weight: 2.85 kg (bare unit)

Performance & Durability

• Max Operating Temperature: 150°C (continuous)

• Shift Cycle Endurance: Tested to 1.5 million shifts without deformation

• Wear Resistance: Hard chrome plated pad options available upon request

• Lubrication Compatibility: Compatible with GL-4 / GL-5 gear oils

  Detailed Description & Application Guide

• This gearbox shift fork (part number 16775 10018) is a critical internal component in heavy truck transmissions. It transfers lateral motion from the shift rail to the synchronizer sleeve, engaging or disengaging gears during ratio changes.

• Built from forged high-carbon steel, this fork resists bending and fatigue under high-torque conditions. The precision-ground fork fingers ensure smooth synchronizer ring engagement, reducing shift effort and preventing gear clash. The manganese phosphate coating provides initial break-in protection and rust inhibition during storage.

  Compatibility & Cross-Reference

• This shift fork 16775 10018 is commonly used in:

• Eaton Fuller 9‑speed and 10‑speed transmissions (RT/RTX series)

• ZF 16S series gearboxes

• Meritor RMO and RMX heavy-duty models

• Aftermarket retrofit for Freightliner, Kenworth, Peterbilt, Volvo, and Scania trucks (verify with your OEM part number)

• Always confirm:
  – Transmission model number
  – Current fork part number stamped on the old unit
  – Shift rail diameter (18 mm standard, but verify)

 Installation Notes (Brief)

• Drain gearbox oil before removal.

• Inspect shift rails and synchronizer sleeves for wear – replace as a set if scoring is found.

• Torque mounting bolts to 45 Nm using thread locker (medium strength).

• Refill with specified heavy-duty gear oil and perform a full shift pattern test before road use.

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