CRTRX INEOS Grenadier & Quartermaster Rear Wheel Bearing Locknut Socket – 1″ Drive

When replacing a rear wheel bearing on the INEOS Grenadier or Quartermaster, we discovered that the required specialist socket was virtually impossible to source—even through an authorised dealer.

Because the rear bearing locknut requires a tightening torque of over 600 Nm and there is no room to use a chisel or screwdriver, improvising is simply not an option. We therefore designed and manufactured this dedicated heavy-duty socket specifically for the job.

Comparable professional axial locknut sockets can cost more than $500 and may still require a vehicle-specific configuration. The CRTRX socket is purpose-designed for the INEOS Grenadier and Quartermaster rear axle and is ready to use.

Its heavy-duty 1-inch (25.4 mm) square drive is suitable for professional torque tools and workshop equipment capable of handling the required torque.

Whether you operate a workshop or travel far from dealer support, having the correct tool available can prevent a failed rear wheel bearing from leaving the vehicle stranded.

We currently have a limited number in stock. If there is sufficient demand, additional production batches will follow.

Specifications:

• Application: INEOS Grenadier and Quartermaster rear wheel bearing locknut
• Drive size: 1″ square drive (25.4 mm)
• Designed for the required tightening torque of over 600 Nm
• Material: 4140 alloy steel
• Heat treatment: Quenched and tempered
• Hardness: 38–40 HRC
• Machined finish: Ra 3.2 μm / Ra 126 μin
• Surface treatment: Black oxide
• Professional workshop-quality construction

The correct purpose-built tool for a job that cannot be completed safely or correctly using standard sockets or improvised methods.