Gunson G4101 Hi-Gauge Compression Tester

77043 6-Piece Gunson Compression Tester Kit

Adaptor for Hi-Gauge Compression Tester, Part No. G4101 and Colortune, Part No. G4074. Thread size: 14mm to 12mm. Suitable for classic motorcycles and two stroke engines. Kit contains: 14mm to 12mm thread adaptor, gas seal washer and hex key. Other adaptors available, Part Nos. G4055A (10mm), G4055C (14mm tapered seat), G4055D (14mm long reach) and G4055E (18mm).

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