4795 Top Dead Center Stop Tool 14mm Bolt-Style

Top Dead Center Stop Tool

This 14mm bolt-style top dead center stop tool, reference number 4795, accurately identifies the highest piston travel point for timing calibration.

Overview

The top dead center stop tool provides engine builders with a reliable mechanical stop to find true TDC. This top dead center stop tool screws into a 14mm spark plug hole to block piston travel during manual rotation. It is an indispensable measuring instrument for professional engine builders and home mechanics performing camshaft timing.

Built For Performance

• Directly replaces part number 4795 for accurate timing setup.
• Threaded to fit standard 14mm spark plug ports without damaging threads.
• Machined from solid steel to prevent bending under manual engine rotation.
• Bolt-style configuration allows adjustment of stop depth for different engines.

On-The-Job Use

• Determining exact top dead center for ignition and cam timing pointer setup.
• Degreeing camshafts during custom engine assembly projects.
• Verifying timing marks on factory or aftermarket harmonic balancers.

Specs At A Glance

Good To Know

Q: Can I use a starter motor to rotate the engine with this tool installed? A: No, the engine must only be rotated by hand to avoid severe engine and tool damage.

Q: Will this work on engines with deep spark plug wells? A: It fits standard 14mm threads, but verify clearance and length relative to your specific engine head design.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.