Terminal W, Voltage 14, Amp 130, Pulley w/o, W plug type 10-24 UNC, Bracket Hole Size 1 13.00, Prod. info BN, Bracket Hole Size Rear 13.20, Holder Arm Width 14.20, Servicing Volvo, International, Ford, Cummins, B+ 1/4" UNF, Radius 2 98.00, Info Shaft: 7/8" = 22.255 mm, Mounting Bracket Distance 101.50, Radius 98.00, Rotation CW/CCW, Belt Adjustment Bracket Hole 1 1/2" UNC, Remarks Replacing: 21SI. Negative grounding. One-wire system. B+: 1/4"., Position 5, B+ Position 50, Belt Adjustment Bracket Hole Position 60, Total Length 217.00