Product: OTC (5608 12mm Adapter Compression Tester
Brand: OTC
Works on 2008 and newer Ford 4.6, 5.4 and 6.8 liter 3-valve engines with 12 millimeter spark plugs
Easy to turn feature makes starting thread fast
Use with OTC compression testers to access hard to reach spark plug holes

Search query: compression tester adapters
Relevance: Exact