Compression Tester Extension (OHC) #3619

The Innova 3619 Compression Tester Extension makes it possible to safely and easily access recessed spark plug holes to perform compression tests on vehicles with difficult access points, including SOHC (single overhead camshaft) and DOHC (dual overhead camshaft) applications.

Free shipping | 1-Year Warranty


This product can expose you to chemicals including DiNP, which is known to the State of California to cause cancer.
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Universal Adapter:

Can be used with any compression tester.

Brass Fittings:

Provide a better seal and more reliable threads than steel.

8 Inches Long:

Plenty of length for any OHC application.

Need more help?
Can I use this on a SOHC (single overhead camshaft) and DOHC (dual overhead camshaft) applications?
Yes. The 8-inch long adapter can be use for overhead camshaft design. Always consult a service manual for specific procedures and specifications.
The 8-inch long reach adapter can be used with most compression tester.