14mm female thread for use with OTC compression testers (or other compression testers with a 14mm male thread) to access hard to reach spark plug holes.

Features and Benefits:

Works on 2004-2007 Ford 4.6 and 5.4L, 3 valve Triton TM V-8 engines with 16mm spark plugs

7" long with 16mm male thread, 14mm female thread

Easy-to-turn feature makes starting thread fast

Triton is a Registered Trade Mark of the Ford Motor Co.

Compression Tester Ford Adapter.