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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 307B EXCAVATOR

Model Specifications

Compressor Type R134 Refrigeration (lbs) Compressor Oil (oz) Compressor Oil Viscosity
Seltec2

Belts

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A/C Compressor Belt - 1 Groove, 39
9-1646

Compressor V-Belt

1N-4635

Blower Motors

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4 1/2 Diameter Blower Wheel, 5/16 Shaft - Caterpillar
BW240

Blower Wheel

100-3426

Cab Products/Filters

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120-7448 - Air Filter - Caterpillar
320-1207448

Air Filter

120-7448

16" L x 6 3/8" H x 1/2" W

Compressors

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OE Seltec Compressor TM-08B - 125mm, 2 Groove Clutch, 12V
506-748

Compressor

191-9028

Rec Driers/Accumulators

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3 1/2 x 9 3/4 Female O-Ring
803-459

Accumulator Without Desiccant - Cat OE Steel

186-6189, 151-5261, 101-8789, 106-1018

Switches/Electrical

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114-5333 - Binary Pressure Switch Update Kit, Normally Open - Caterpillar
220-10512

Cat Binary Pressure Switch Update Kit

114-5333

Eliminates Pin Connection at Pressure Switch
Solid Pin Connector on Harness

114-5333 - Cat Binary Pressure Switch, Normally Open with Aftermarket Wire Harness
220-1052

Binary Switch with Aftermarket Wire Harness and Connector

114-5333

Includes Aftermarket Wire Harness
For Switch Only Order a 220-1051

114-5333 - Cat Binary Pressure Switch, Normally Open with OE Wire Harness and Connector with Solid Pins
220-1052HD

Binary Pressure Switch with HD OE Wire Harness and Connector

114-5333

Includes Heavy Duty OE Wire Harness
For Switch Only Order a 220-1051

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