Sundstrand Series 18 Axial Piston Pump and Motor Parts Breakdown
Parts for the Sundstrand (Sauer-Danfoss) Series 18 variable pump, tandem pump, variable motor and fixed motor: 187 current and superseded part numbers from Danfoss service parts manual 520L0664. Positions are the manual's item numbers; German numbers and superseded numbers are listed as cross references.
187 parts across 15 categories
Source: Danfoss Series 18 Service Parts Manual 520L0664 (BLN-2-41635, Rev BA, February 2014)
Seal Kits 6 parts
Service Kits 21 parts
Shaft Seals 5 parts
29, 34
Shaft seal
Used on: variable pump, tandem pump. See Danfoss service bulletin SB-1992-010.
Qty 1
29, 34, 21
Shaft seal
Used on: variable pump, tandem pump, variable motor, fixed motor. See Danfoss service bulletin SB-1992-010.
Qty 1
25A, 43A, 47A
Lip seal
Used on: variable pump, tandem pump, variable motor. See Danfoss service bulletin SB-1992-010.
Qty 2
Shafts & Keys 26 parts
31, 35
Shaft, 13 t. spline, spline charge pump drive
Used on: variable pump, tandem pump.
Qty 1
31, 35
Shaft, 15 t. spline, tapped, spline charge pump drive
Used on: variable pump, tandem pump.
Qty 1
Bearings 8 parts
3, 9, 6
Rear bearing kit
Used on: variable pump, tandem pump, variable motor, fixed motor.
Qty 1
6, 84, 29
Front bearing kit
Used on: variable pump, tandem pump, variable motor, fixed motor.
Qty 1
Rotating Group 3 parts
26, 2, 14
Cylinder block kit
Used on: variable pump, tandem pump, variable motor, fixed motor. See Danfoss service bulletin SB-1987-003.
Qty 1
26A, 2A, 14A
Piston assembly
Used on: variable pump, tandem pump, variable motor, fixed motor.
Qty 9
26B, 2B, 14B
Slipper retainer
Used on: variable pump, tandem pump, variable motor, fixed motor.
Qty 1
Swashplate 2 parts
End Cap & Valve Plate 17 parts
42, 40
End cap
Used on: variable pump, tandem pump. See Danfoss service bulletin SB-1988-008.
Qty 1
Housing & Covers 9 parts
43
Rear pump housing
Used on: tandem pump. Listed for units with date code 78-01 to 89-06.
Qty 1
Charge Pump 11 parts
Relief & Check Valves 7 parts
21, 68, 85
Check valve poppet
Used on: variable pump, tandem pump. See Danfoss service bulletin SB-1988-008.
Qty 1
21, 68, 85
SCR valve, 300 bar [4350 psi]
Used on: variable pump, tandem pump. See Danfoss service bulletin SB-1988-008.
Qty 1
21, 68, 89
SCR valve, 345 bar [5000 psi]
Used on: variable pump, tandem pump. See Danfoss service bulletin SB-1988-008.
Qty 1
21, 68
SCR valve, 175 bar [2538 psi]
Used on: variable pump. See Danfoss service bulletin SB-1988-008.
Qty 1
21, 68, 85
SCR valve, 210 bar [3045 psi]
Used on: variable pump, tandem pump. See Danfoss service bulletin SB-1988-008.
Qty 1
21, 68, 85
SCR valve, 250 bar [3625 psi]
Used on: variable pump, tandem pump. See Danfoss service bulletin SB-1988-008.
Qty 1
Bypass & Loop Flushing 3 parts
Springs 2 parts
Seals & O-Rings 17 parts
101A, 102A, 111A
O-ring
Used on: variable pump, tandem pump, variable motor, fixed motor.
Qty 2
Hardware 50 parts
53, 60
Plug
Used on: variable pump, tandem pump. See Danfoss service bulletin SB-1988-008.
Qty 2
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