Save 15% New item Pay Now
Add this item to Cart for a combined free shipping deal
Click to enlarge photo

Listing Detail Tabs

14mm, 14mm deep & 18mm spark plug hole fittings included
Ideal for testing if piston rings, valves or the head gasket is sealed correctly

Is this product for you?

Compression is a critical part of an engine’s combustion, without it, or more specifically, without the right amount of compression, your engine will not produce power efficiently. An engine is a sealed chamber designed to keep compression in. If your engine is not producing the correct compression, this can be due parts such as the piston rings, valves or head gasket not sealing correctly. The ToolPro Compression Tester is designed to tell you the exact amount of compression that your engine is producing. With these readings, the user can then compare differences in compression between cylinders against the factory service manual, to determine if engine reconditioning needs to be undertaken.

Using the supplied 14mm, 14mm deep or 18mm fitting, this will thread into the spark plug hole, replacing the spark plug. When using a compression tester, it is always best to disconnect the ignition system as well as disable fuel source to prevent the car from starting. Remember, when using a compression tester, you don’t want the motor to kick over; you simply want to crank the motor in order to drive the pistons and produce compression. As this is an advanced tool, it is advisable to read instructions before use along with the service manual of your car. Please click here to ask a question
Your question and answer privileges have been disabled.
You must log in to view questions and answers on this listing. We recommend reading questions before you make any purchases.
You must log in to ask or answer questions posted. We recommend reading questions before you make any purchases. Available only to approved bidders. You must be an authenticated member to ask questions Find out more about becoming authenticated. Your account is in debt Your current account balance is You must credit your account to use this feature.
Firearms licence #
Firearms licence holder name
First name is required
Last name is required
Your current account balance is Please note you will lose your question and answer privileges if your account is in debt for more than 2 weeks. Credit your account.
I confirm that I am over 18 years old.
To prevent your personal details being misused please do not put emails or phone numbers in questions. Failure to comply may result in the suspension of your account. The seller cannot add a Buy Now price once bidding has started.

Shipping options

Buy more than one of this item and only pay for shipping once.
  • standard delivery - signature required by courier$4.95
  • Store does not allow pick-ups
  • Store location: Auckland City, Auckland, NZ

Payment options

Pay Now and Afterpay include:

Buyer Protection Learn More