Piston Bridge Tool / Piston Deck Height Measuring Tool – Fits Up to 95mm Bore

For precision engine work – lightweight, durable, and easy to use


This product is fitted with a system where we can identify if it has been used and will void the ability to return that means if the item is returned with this security seal broken we will refuse refund. This will not affect your ability to visually inspect the tool or even see if it’s suitable for the task. This measure allows us to keep costs down and pass those savings onto customers.




Please note no Dial Tool included this can be purchased online for under £20.


Take the guesswork out of engine assembly with this Piston Bridge Tool, designed to help you accurately measure piston deck height on engines with bore sizes up to 95mm.


Built from high-strength ABS with glass fibre reinforcement, this tool is lightweight yet tough enough for repeated use in the workshop or garage. It also includes protective rubber end covers to prevent damage during storage and transport.



✅ Features:

• Fits up to 95mm bore sizes – Ideal for small-displacement engines

• Bridge-style design – Sits securely across the bore without contacting the piston crown

• Central dial indicator port – Compatible with most dial and digital indicators

• Made from glass fibre-reinforced ABS – Durable, impact-resistant, and workshop friendly

• Protective rubber end caps – Keeps tool safe when stored in your toolbox

• Compact and lightweight – Easy to handle and store

• Repeatable accuracy – Perfect for checking deck height and setting up for compression measurements



📏 How to Use:

1. Bring the piston to Top Dead Center (TDC)

2. Position the bridge tool across the cylinder bore

3. Insert your dial indicator (not included) through the center hole until it contacts the piston crown

4. Zero the indicator and gently rock the crank to verify true TDC

5. Record your piston-to-deck measurement



📦 Includes:

• 1x Piston Bridge Tool

• Protective rubber end caps

• (Dial indicator not included)