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  • AP AIR, INC.
  • 805 13th Street North
  • Humboldt, IA 50548
  • 800-806-5312
  • 1101 Center Street
  • Redding, CA 96001
  • 855-984-8511

CATERPILLAR 311B EXCAVATOR

Model Specifications

Compressor Type R134 Refrigeration (lbs) Compressor Oil (oz) Compressor Oil Viscosity
Sanden2.2 - 2.4

Belts

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A/C Compressor Belt - 1 Groove, 44.2
9-1138

Compressor Belt

068-5590

Blower Motors

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147-4834 Blower Motor Assembly - Caterpillar
BM3852

Blower Motor Assembly - 24V

147-4834
Blower Wheel
TBA 115-3811

Blower Wheel

115-3811
Resistor
TBA 124-4040

Blower Motor Resistor

124-4040
Blower Motor Assembly
TBA 5I-3566

Blower Motor Assembly

5I-3566

Compressors

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OE Denso Compressor 10PA15C - 134mm, 1 Groove Clutch, 24V
503-1224

OE Denso Compressor 10PA15C - 134mm, 1 Groove Clutch, 24V

154-0490

Can Use Alternative Denso - 503-12243

Alternative Denso Compressor 10PA15C - 134mm, Single Groove Clutch, 24V
503-12243

Alternative Denso Compressor 10PA15C - 134mm, Single Groove Clutch, 24V

154-0490
OE Sanden Compressor SD7H15 - 138mm, 1 Groove Clutch 24V
509-586

OE Sanden Compressor SD7H15 - 138mm, Single Groove Clutch, 24V

3E-1906

Can Use Alternative Sanden - 509-5863

Alternative Compressor SD7H15 - 138mm, 1 Groove Clutch 24V
509-5863

Alternative Compressor SD7H15 - 138mm, Single Groove Clutch, 24 Volt

3E-1906

Condensers

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1300253 - Caterpillar Excavator Condenser, 4 Pass
400-9013

Condenser

130-0253

Parallel Flow, Non-Serviceable Design

Condenser
TBA 105-9407

Condenser

105-9407

Evaporators

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147-4812 - Caterpillar Evaporator
590-2529

Evaporator

147-4812
Evaporator
TBA 105-9507

Evaporator

105-9507

Expansion Valves

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Internally Equalized With 11 Capillary Tube
902-282

Expansion Valve

105-9509
Expansion Valve
903-750

Expansion Valve

130-0263

Heaters, Heater Cores

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Heater Core
TBA 147-4813

Heater Core

147-4813
Heater Core
TBA 5I-3556

Heater Core

5I-3556
Heater Valve
TBA 5I-3568

Heater Valve

5I-3568

Radiators

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1189948 - Caterpillar Radiator
IR02011

Radiator

185-8981, 118-9948

Rec Driers/Accumulators

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2.95 X 9 Pad Mount - Dry-Tech Series
803-450

Heavy Duty Dry-Tech Receiver Drier

124-4055, 113-3497
2.95 X 9 Pad Mount
803-4501

Standard Duty Receiver Drier

124-4055, 113-3497

Switches/Electrical

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130-0270 - Binary High Pressure Switch - Caterpillar
220-424

High Pressure Switch

130-0270
124-4042 - Relay Switch, Blower & Compressor
550-265

Relay Switch, Blower & Compressor

124-4042
Thermostatic Switch
TBA 099-6746

Thermostatic Switch

099-6746
Switch
TBA 106-0181

Pressure Switch

106-0181
Thermostatic Switch
TBA 147-4815

Thermostatic Switch

147-4815

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