replacement pump motor

Bucher Pump Motor | Standard Duty | 2.1 HP

$232.00
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replacement pump motor
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Bucher Pump Motor | Standard Duty | 2.1 HP

08111
$232.00
In Stock

The Bucher Standard-Duty Pump Motor is the OEM replacement motor for the full Bucher hydraulic pump line. 12V DC, 2.1 HP, series-wound with class F insulation and an IP54 dust-and-splash rating. If your HPU still pumps fine but the motor sounds rough or won't start under load, this is the direct replacement.

How do I tell if my Bucher pump motor needs replacing?

Two common symptoms. First, motor spins fine unloaded but stalls or hums when the cylinder hits load — usually worn brushes or a tired armature. Second, motor doesn't spin at all but the solenoid clicks and the wiring tests good — usually a stuck or open commutator. Either case, this motor is the OEM-spec replacement.

  • 12V DC, 2.1 HP, series-wound (wound field)
  • Counter-clockwise rotation
  • Class F insulation, IP54 dust and splash resistant
  • Standard-duty intermittent rating
  • 4.5 in diameter, 6.75 in overall length
  • Direct fit on Bucher hydraulic pumps
  • Bucher OEM, Pierce SKU 08111

For the solenoid that switches power to this motor, see the Bucher 12V Pump Solenoid (Style 2). For complete HPUs, see the Bucher 2-Way HPU (PM-3551).

What's Included
Specifications
Operating Voltage
12 Volts DC
Power Source
Electric, DC
Type
Wound Field, Standard-Duty
Motor (hp)
2.10
Duty Cycle
Intermittent
Rotation
Counter-clockwise (CCW)
Winding Type
Series wound
Insulation Class
F
Diameter
4.5 inches (114 mm)
Overall Length
6.75 inches (172 mm)
IP Rating
IP54 (dust and splash resistant)
UL Listed
No
Technical Data

Fixed Clearance Amp Draw for 08111 Motor

Current values are DC Amps

Pressure psi (bar)17-100 0.022 in³ (0.35 cc)17-120 0.026 in³ (0.43 cc)17-150 0.032 in³ (0.53 cc)17-190 0.041 in³ (0.67 cc)17-270 0.058 in³ (0.96 cc)13-150 0.073 in³ (1.19 cc)13-200 0.097 in³ (1.59 cc)13-250 0.121 in³ (1.98 cc)13-270 0.131 in³ (2.14 cc)13-330 0.160 in³ (2.62 cc)13-380 0.184 in³ (3.01 cc)13-510 0.247 in³ (4.05 cc)
50 (3)8686888890909293949596100
250 (17)888991929597102105108111114125
500 (34)91929596102107114120124131137154
750 (51)949599101109116126135140150159183
1000 (68)9699103106115125138149155169180211
1250 (86)99102107111122133149164170187201238
1500 (103)102105110114125136151166173190204242
1750 (121)105108114119131145162180188208225270
2000 (138)108111119124138153172194203225246297
2250 (155)111114123129144161182207217242265323
2500 (172)114117127134150169191219230258283348
2750 (190)117120131138156176199231242273300372
3000 (207)120123134142162183207243255287317-
3250 (224)123126138146168189215254267300333-

Fixed Clearance Flows for 08111 Motor

Flows are for bled-to-reservoir pumps. Bled-to-suction pumps will provide lower flows and have lower pressure limits. Values shown are in gpm.

Pressure psi (bar)17-100 0.022 in³ (0.35 cc)17-120 0.026 in³ (0.43 cc)17-150 0.032 in³ (0.53 cc)17-190 0.041 in³ (0.67 cc)17-270 0.058 in³ (0.96 cc)13-150 0.073 in³ (1.19 cc)13-200 0.097 in³ (1.59 cc)13-250 0.121 in³ (1.98 cc)13-270 0.131 in³ (2.14 cc)13-330 0.160 in³ (2.62 cc)13-380 0.184 in³ (3.01 cc)13-510 0.247 in³ (4.05 cc)
50 (3)0.590.700.871.011.411.902.493.093.294.014.595.93
250 (17)0.570.680.840.971.341.782.292.792.953.503.944.88
500 (34)0.550.660.800.931.261.642.072.472.593.013.323.96
750 (51)0.540.640.770.891.191.521.882.212.312.632.863.34
1000 (68)0.520.610.740.851.121.421.721.992.072.332.522.90
1250 (86)0.500.590.710.811.061.321.581.811.882.092.252.57
1500 (103)0.480.560.680.771.001.231.461.661.721.892.032.33
1750 (121)0.460.540.640.730.941.151.361.531.581.731.862.14
2000 (138)0.440.510.610.690.891.081.261.421.471.601.711.97
2250 (155)0.410.490.580.660.841.011.181.321.371.481.59-
2500 (172)0.390.460.550.620.790.951.101.231.281.381.48-
2750 (190)0.360.430.520.580.740.881.031.151.201.281.38-
3000 (207)-0.400.480.540.690.830.961.081.121.191.28-
3250 (224)--0.450.500.640.770.901.011.051.10--
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