Diesel Compression Tester - Special Tools A Comprehensive set for testing the compression on diesel vehicles. 600 psi gauge with large rubber bumper Straight and right angled quick connect fittings Extensive range of spark/glow plug and injector adaptors For spark plug sizes:10, 12, 14 and 18mm Glow plug adaptors for:Alfa Romeo, BMW, Chrysler, PSA (Citroën/Peugeot), Daewoo, Fiat, Ford, Honda, Hyundai/Kia, Isuzu, Jeep, Lada, Lancia, Land Rover, LDV, Mazda, Mercedes-Benz, MG-Rover, Mitsubishi, Renault/Nissan, Saab, SsangYong, Suzuki, Toyota, VAG (Volkswagen/Audi/Skoda/Seat), GM (Vauxhall/Opel/Chevrolet), Volvo, etc. Injector adaptors:M20, M22, M24 & Ford STANADYNE injectors, Clamp-on injectors