Fits :
Type-4 engines 1700cc
Specifications:
Valves: 39.3 x 33.0 mm
Spark plug size: 14 mm
Combustion chamber: 53.0cc
Paruzzi number : 41722
Fits :
Type-4 engines 1800cc
Specifications:
Valves: 39.3 x 33.0 mm
Spark plug size: 14 mm
Combustion chamber: 57.5cc
Paruzzi number : 41723
Fits :
Type-4 engines 2000cc (engine code GE or CJ) 8.1978 and later
Specifications:
Valves: 37.5 x 33.0 mm
Spark plug size: 14 mm
Combustion chamber: 56.5cc
Paruzzi number : 41728
Fits :
Type-4 engines 2000cc engine code CU or CV
Specifications:
Valves: 39.3 x 33.0 mm
Spark plug size: 14 mm
Combustion chamber: 56.5cc
Paruzzi number : 41724
Fits :
Type-4 engines 2000cc until 7.1978
Specifications:
Valves: 37.5 x 33.0 mm
Spark plug size: 14 mm
Combustion chamber: 56.5cc
Paruzzi number : 41726
Fits :
Waterboxer engines
1900cc engine code SP, DG, DH or GW
2100cc all
Specifications:
Valves: 40.0 x 34.0 mm
Spark plug size: 14 mm
Paruzzi number : 71724
Fits :
Waterboxer engines
1900cc with engine code DF or EY
Specifications:
Valves: 40.0 x 34.0 mm
Spark plug size: 14 mm
Paruzzi number : 71723
Fits :
Diesel engine 1600cc engine code CS 1981 (CS 000 339) and later
Specifications:
Valves: 34.0 x 31.20 mm
Paruzzi number : 71721
Fits :
Turbo diesel engine 1600cc
Specifications:
Valves: 34.0 x 31.20 mm
Paruzzi number : 71720
Fits :
Type-4 engines 2000cc until 7.1978
Specifications:
Valves: 39.3 x 33.0 mm
Spark plug size: 14 mm
Combustion chamber: 56.5cc
Paruzzi number : 41727