Reman DM Advantage On/Off SE 21 Fan Clutch Assembly, Peterbilt/Caterpillar, 2.56" Fan Pilot, 3.50" Fan Bolt Circle, 8-Groove 7.50"O.D. Rear Pulley + 6-Groove 9.00"O.D. Front Pulley - A=7.50" A1=9.00" B=7.09" C=1.94" D=3.50" E=2.56" F=1.07" G=4.19" H=5.00"
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MOUNTING PILOT DIAMETER
0.590551181 IN
MOUNTING BOLT CIRCLE
5.31496063 IN
Fan Pilot Diameter
2.56
OUTER (OVERALL) DIAMETER
6.299212598 IN
Heavy Duty
False
MOUNTING THREAD TYPE or NUMBER OF HOLES
0.590551181
Vertical Mounting Distance
4.19
Clutch Mounting Surface To Fan Mounting Surface
0.173228346 IN
Horizontal Mounting Distance
5
Overall Length
1.377952756 IN
Back Pulley Diameter
7.5
Fan Bolt Circle
3.5