Cub Cadet Challenger 750

550 UV Engine Specifications
2-11
IN EX
Clockwise
Valve
Dimensions
Head diameter
face width
seat
width
Margin thickness
"A" head diameter
IN
39.9- 40.1 mm
(1.5709~1.5787 in)
EX
3 3.9 - 33 .98 mm
(1.3346~1.3378 in)
"B" face width IN
2.25 mrn (0.0900 in)
2 .26 mm
EX
(0.0890in)
0.9~1.1mm
1.6mm
"C" seat width IN
(0.0354~0.0433in)
0. 9 - 1.1 mm
(0.0630in)
1.6mrn
EX
(0.0354~0.0433in)
0.85 - 1.15mm
(0.0630in)
"D" margin thickness
IN
(0.0335~0.0453in )
0.85~1.315mm
EX
(0.0335~0.0453in)
5.975~5.990mm 5.945 mm
Stem outside diameter IN
(0.2352~0.2358in)
5.960~5.975mm
(0.2341in)
5.930 mm
EX
(0.2346~0.2352in)
6.000~6.012mm
(0.2355in)
6.050mm
Guide inside diameter IN
(0.2362~0.2367in) (0.2559in)
EX
6.000~6.012mm
(0.2362~0.2367in)
6.050 mm
(0.2559in)