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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5P-2673 Seal Caterpillar CAT OEM 5P2673

5P-2673 Seal Caterpillar CAT OEM 5P2673

Regular price $15.26
Sale price $15.26 Regular price $16.96
Unit price
5P-2672 Lip Type Seal Caterpillar CAT 5P2672

5P-2672 Lip Type Seal Caterpillar CAT 5P2672

Regular price $15.27
Sale price $15.27 Regular price $16.97
Unit price
5P-2671 Seal Lip Caterpillar CAT OEM 5P2671

5P-2671 Seal Lip Caterpillar CAT OEM 5P2671

Regular price $14.97
Sale price $14.97 Regular price $0.00
Unit price
5N-4751 Vee-Belt Set Caterpillar 5N5751

5N-4751 Vee-Belt Set Caterpillar 5N5751

Regular price $59.63
Sale price $59.63 Regular price $0.00
Unit price
Caterpillar branded product in a clear plastic bag on a white background
Caterpillar branded product in a clear plastic bag on a white background

CAT 5J-4991 OEM Piston Seal Assembly Kit Caterpillar 5J4991 165mm Bore

Regular price $12.50
Sale price $12.50 Regular price $25.30
Unit price
5D-6997 Pad Caterpillar CAT OEM 5D6997

5D-6997 Pad Caterpillar CAT OEM 5D6997

Regular price $6.97
Sale price $6.97 Regular price $0.00
Unit price
500300A5102AAAAA / 505303A5102AAAAA Roller Stator 6 Spline Hydraulic Motor
500300A5102AAAAA / 505303A5102AAAAA Roller Stator 6 Spline Hydraulic Motor

Danfoss 500300A5102AAAAA / 505303A5102AAAAA Roller Stator 6-Spline Hydraulic Motor (NOS)

Regular price $449.95
Sale price $449.95 Regular price $705.96
Unit price
4V-9640 Strip Caterpillar CAT 4V9640

4V-9640 Strip Caterpillar CAT 4V9640

Regular price $11.12
Sale price $11.12 Regular price $12.36
Unit price
4V-6186 US Spring Caterpillar CAT OEM 4V6186

4V-6186 US Spring Caterpillar CAT OEM 4V6186

Regular price $13.38
Sale price $13.38 Regular price $14.87
Unit price
4V-3059 BELLCRANK GENUINE CATERPILLAR 4V3059 NOS

4V-3059 BELLCRANK GENUINE CATERPILLAR 4V3059 NOS

Regular price $74.86
Sale price $74.86 Regular price $0.00
Unit price
4V-0661 RUBBER MOUNT WITH STEEL SLEEVE CATERPILLAR CAT OEM 4V0661

4V-0661 RUBBER MOUNT WITH STEEL SLEEVE CATERPILLAR CAT OEM 4V0661

Regular price $29.32
Sale price $29.32 Regular price $64.00
Unit price
Caterpillar 4T-3128 Valve Group - Genuine OEM CAT 4T3128
Caterpillar 4T-3128 Valve Group - Genuine OEM CAT 4T3128

Genuine Caterpillar 4T-3128 Valve Group | Hydraulic Control Valve | OEM New Old Stock (NOS)

Regular price $1,098.68
Sale price $1,098.68 Regular price $1,600.00
Unit price
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