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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 257B SKIDSTEER

Model Specifications

Compressor Type R134 Refrigeration (lbs) Compressor Oil (oz) Compressor Oil Viscosity
Seltec1.786

A/C Hose

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218-6583 - Compressor to Condenser Hose
7-2186583

Compressor to Condenser Hose

218-6583

Serial Number SLK1 - SLK997

218-6584 - Suction Hose - Accumulator to Compressor
7-2186584

Suction Hose - Accumulator to Compressor

218-6584

Serial Number SLK1 - SLK997

Accumulator to Evaporator Hose
TBA 218-6581

Accumulator to Evaporator Hose

218-6581

Serial Number SLK1 - SLK997

Condenser to Evaporator Hose
TBA 218-6582

Condenser to Evaporator Hose

218-6582
Compressor to Condenser Hose
TBA 233-6006

Compressor to Condenser Hose

233-6006

Serial Number SLK1807 and Above

Accumulator to Evaporator Hose
TBA 252-0359

Accumulator to Evaporator Hose

252-0359

Serial Number SLK998 and Above

Suction Hose - Accumulator to Compressor
TBA 267-3090

Suction Hose - Accumulator to Compressor

267-3090

Serial Number SLK998 and Above

Blower Motors

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295-5440 - Blower Motor Assembly - Caterpillar
BM40052

Blower Motor Assembly

295-5440, 231-8125
9 Condenser Fan Assembly, Pusher, Curved Blade, Low Profile
FA924

Condenser Fan Assembly

218-6250

Cab Products/Filters

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Cab Air Recirculation Filter - Red Dot/Caterpillar
320-10847

Caterpillar Air Recirulation Filter

231-8132, 248-8290

Compressor Kits

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Heavy Off Road A/C Kit - Caterpillar
890-7600

Ag A/C Kit

Includes Compressor, Accumulator, Orifice Tube and O-Rings

Compressor Manifolds

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TM-08 Fitting Repair Kit
451-1177K

TM-08 Fitting Repair Kit

6733655, 6675667

Compressors

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TM-08 Compressor Without Clutch, Vertical 8 and 10 O-Ring
506-760

New TM-08 Compressor without Clutch

218-6833, 218-6832, 219-6833

Hydraulic Driven Compressor

Condensers

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218-6806 - Caterpillar Condenser
400-9221

Condenser

218-6806

Serial Number SLK1 - SLK1807

Parallel Flow, Non-Serviceable Design

233-5927 - Condenser - Caterpillar
400-9222

Condenser

233-5927

Serial Number SLK1809 and Above

Evaporators

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Evaporator
TBA 218-8123

Evaporator

218-8123

Expansion Valves

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Ford - Brown
905-915

Orifice Tube

232-1384

Heater Valves

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Red Dot Heater Control Valve
570-205

Heater Control Valve

231-8126

Heaters, Heater Cores

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231-8124 - Caterpillar Heater Core
HC2708

Heater Core

231-8124

Rec Driers/Accumulators

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3 1/2 x 9 3/4 Female O-Ring - Dry-Tech Series
803-462

Dry-Tech Series Accumulator with Desiccant

176-3900, 186-6190

Switches/Electrical

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Preset Thermostatic Switch, 24 Capillary Tube
210-936

Thermostatic Switch

119-9631
236-6923 - Binary Pressure Switch, Normally Open - Caterpillar
220-1058

Binary Pressure Switch

236-6923

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