Genuine OEM Caterpillar (CAT) Parts & Components

Genuine OEM Caterpillar (CAT) Parts & Components

Keep your "Yellow Iron" performing at peak capacity with our premium selection of genuine OEM Caterpillar parts. As a cornerstone of our Shop by Brand collection, this inventory features authentic overstock components engineered to meet the exact metallurgical and performance specifications of CAT excavators, dozers, loaders, and industrial engines.

Mission-Critical Hardware & Components

Our Caterpillar inventory is stocked with high-demand, factory-original parts to minimize your machine downtime:

  • Hydraulics & Hardware: High-pressure hydraulic valve blocks, precision sleeve bearings, pivot pins, and bucket wear plates.
  • G.E.T. (Ground Engaging Tools): Genuine CAT bucket tooth locking pins, sidebar protector pins, and hammerless tip retainers (J550 and K170 series).
  • Engine & Electrical: C7 fuel injector wiring harnesses, oil pressure sending units, temperature senders, and heavy-duty cogged V-belts.
  • Maintenance Essentials: Factory-original O-ring seals, seal kits, horn assemblies, and rotary latches.

Why Choose Original CAT Overstock?

By opting for factory-original Caterpillar components over generic "will-fit" aftermarket alternatives, you ensure your heavy equipment maintains its legendary breakout force, structural integrity, and durability. Protect your investment, ensure job site safety, and avoid accelerated wear with authentic components at overstock prices.

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3V-3567 Handle AA Caterpillar CAT 3V3567

3V-3567 Handle AA Caterpillar CAT 3V3567

Regular price $14.30
Sale price $14.30 Regular price $15.89
Unit price
3V-3537 Tube A CAT/Caterpillar

3V-3537 Tube A CAT/Caterpillar

Regular price $19.97
Sale price $19.97 Regular price $0.00
Unit price
3V-3056 Collar CAT/Caterpillar

3V-3056 Collar CAT/Caterpillar

Regular price $11.33
Sale price $11.33 Regular price $0.00
Unit price
3T-2171 Relay Caterpillar CAT OEM 3T2171
3T-2171 Relay Caterpillar CAT OEM 3T2171

3T-2171 Relay Caterpillar CAT OEM 3T2171

Regular price $20.99
Sale price $20.99 Regular price $55.00
Unit price
3T-0688 Spool Caterpillar/ CAT with Spring 3T0688

3T-0688 Spool Caterpillar/ CAT with Spring 3T0688

Regular price $53.89
Sale price $53.89 Regular price $59.88
Unit price
3S4115 Bolt A. CAT

3S4115 Bolt A. CAT

Regular price $17.27
Sale price $17.27 Regular price $0.00
Unit price
3S-9233 CAT Seal-O-Ring Caterpillar 3S9233

3S-9233 CAT Seal-O-Ring Caterpillar 3S9233

Regular price $9.23
Sale price $9.23 Regular price $11.98
Unit price
3G-9315 Wire Harness Caterpillar CAT 9G9315

3G-9315 Wire Harness Caterpillar CAT 9G9315

Regular price $10.41
Sale price $10.41 Regular price $11.57
Unit price
3G-4762 Piston Seal Caterpillar CAT OEM 3G4762

3G-4762 Piston Seal Caterpillar CAT OEM 3G4762

Regular price $26.43
Sale price $26.43 Regular price $29.37
Unit price
3E-6758 Seal Lip Type Caterpillar CAT 3E6758

3E-6758 Seal Lip Type Caterpillar CAT 3E6758

Regular price $17.97
Sale price $17.97 Regular price $19.97
Unit price
3E-2033 Switch Assembly-Pressure Caterpillar CAT 3E2033

3E-2033 Switch Assembly-Pressure Caterpillar CAT 3E2033

Regular price $71.96
Sale price $71.96 Regular price $79.96
Unit price
388-7012 Clamp Bent B Caterpillar CAT OEM 3887012

388-7012 Clamp Bent B Caterpillar CAT OEM 3887012

Regular price $22.21
Sale price $22.21 Regular price $24.68
Unit price
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