Engineered by performance engine builders, the HRB RB/SR Crank Socket is the ultimate solution for precise crankshaft rotation on high-performance JDM engines. Developed after years of modifying generic sockets to meet real-world demands, this tool offers the perfect fit, strength, and reliability for serious engine work.

Built for both RB and SR engine platforms, this crank socket is essential for safely turning the engine during timing, assembly, and maintenance procedures.

Choose the Crank Timing Socket when degreeing your engine — it features a 1-inch threaded boss and locking nut, designed specifically for securely mounting a degree wheel.

Compatible with all NISSAN RB and SR engine variants and models.

Key Features:

• Rigid one-piece 4140 steel construction
• 1/2-inch drive for use with standard tools
• Black oxide coated for corrosion resistance
• Precision-machined for a guaranteed tight fit on crank snout and keyway
• Optional timing version includes 1” threaded boss and locking nut to securely mount a degree wheel

Why Choose the HRB RB/SR Crank Socket?

When working on precision engine builds, having a strong and accurately fitting crank socket is vital. The HRB crank socket eliminates slop and fitment issues, ensuring smooth crank rotation without damaging the snout or keyway. Whether you’re dialing in cam timing, installing a harmonic balancer, or assembling a full race engine, this tool provides the confidence and control you need.

Ideal for NISSAN RB20DET, RB25DET, RB26DETT, and SR20DET engine builds. Perfect for complete engine assembly, cam timing setup and general performance engine maintenance. HRB professional engine tools are designed for engine builders, racing teams, and dedicated DIY enthusiasts.

The crank turn over variant is included in our: RB Engine Build Kit