MCS Compression Tester Adapter, 12mm for Harley Davidson

Lost or broken the screw-on adapter for your compression tester?
- Used between the tube of a compression tester/leakdown tester and the cylinder head
- With 5/16" / 8 mm hose end
- The threaded end is 12mm x 1.25
- Fits most cylinder heads with 12mm thread

Fits: > 99-17 Twin Cam; 86-22 XL Sportster; 08-12 XR1200