Unlock fast, precise crankshaft locking on Nissan SR engines with the HRB SR Starter Motor Hole Crank Lock Tool. Engineered from zinc-plated steel for workshop durability, this billet tool threads into the SR20DE/SR20DET starter motor mount and engages the flywheel ring gear directly—eliminating slippage during high-torque tasks like crank bolt removal, flywheel installation or clutch adjustments. No more makeshift stop-blocks or jury-rigged straps: HRB’s SR crank lock tool delivers repeatable accuracy, a bolt-on fit, and all mounting hardware for a quick setup in-car or on the engine stand.

Compatible with all NISSAN SR engines, DEISNGED AROUND RWD S CHASSIS 5 AND 6 SPEED GEARBOX,  including SR20DET, SR20DE, and SR20VE. Supplied with mounting hardware for straightforward installation.

This tool is included in our: SR Crank Lock Up Kit.

Key Features

• Engine-Specific Fit: Designed exclusively for Nissan SR20DE & SR20DET engines
• Starter-Hole Locking: Uses the starter motor boss for a rock-solid crank hold
• Durable Construction: Zinc-plated steel resists corrosion in harsh workshop environments
• Bolt-On Installation: Includes all necessary mounting hardware for hassle-free setup
• Professional-Grade Accuracy: Perfect for torqueing crank bolts, flywheels, or clutches without crankshaft movement

Why Choose the HRB SR Starter Hole Crank Lock Tool?

When working on SR-series cylinder heads or performing top-end refreshes, reliable crank locking is critical. HRB’s purpose-built SR tool replaces improvised methods with one you can trust—saving time in the shop and preventing costly errors. Part of the HRB Crank Lock Up Kit and SR Engine Build Kit (sold separately), it’s the must-have solution for every Nissan SR engine builder.