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CAT 320 Spare Parts

Engine, hydraulic, undercarriage, filters and electrical — organized by system. Compatible with CAT 320, 320B, 320C, and 320D models.

What to send us for a quick quote:
  • Machine Model — e.g. CAT 320C, CAT 320D
  • Serial Number — helps us confirm exact fitment
  • Part Number — if you already have it
  • Photos — photo of the old part or the nameplate
  • Destination Country — for shipping estimate
  • Quantity — how many pieces you need

Don't have all the details? Send what you have — we'll help identify the part.

01

Engine System Parts

P/N: 2W-8578 KIT
Engine Overhaul Kit
OEM Ref: CAT 320 / 3066 Engine Series
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P/N: 7W-2332
Piston Assembly
OEM Ref: CAT 320 / 320B — 3066 Engine
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P/N: 112-6827
Cylinder Head Assembly
OEM Ref: CAT 320 / 3066 Engine
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P/N: 4P-7184
Water Pump Assembly
OEM Ref: CAT 320 / 320L — 3066
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P/N: 10R-7660
Fuel Injection Pump
OEM Ref: CAT 320C / 320D
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P/N: 9L-9603 KIT
Engine Gasket Kit
OEM Ref: CAT 320 / 3066 Full Set
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02

Hydraulic System Parts

P/N: 272-6454
Main Hydraulic Pump
OEM Ref: CAT 320C / 320D
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P/N: 206-9740
Travel Motor Assembly
OEM Ref: CAT 320C
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P/N: 238-6959
Swing Motor
OEM Ref: CAT 320C / 320D
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P/N: 4T-9799
Hydraulic Seal Kit
OEM Ref: CAT 320 Boom Cylinder
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P/N: 211-6321
Main Control Valve
OEM Ref: CAT 320C
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P/N: 214-4816
Boom Hydraulic Cylinder
OEM Ref: CAT 320C
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Can't find your part? Send us the part number.

Not seeing the part you need? Send us your part number or machine serial number, and we will check sourcing and availability.

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03

Undercarriage Parts

P/N: 198-7721
Track Shoe Assembly
OEM Ref: CAT 320C / 320D — 600mm
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P/N: 9P-5128
Drive Sprocket
OEM Ref: CAT 320 / 320B
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P/N: 7T-3294
Bottom Track Roller
OEM Ref: CAT 320 / 320B
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P/N: 7T-3291
Carrier Roller (Top Roller)
OEM Ref: CAT 320 / 320B
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P/N: 2T-0358
Front Idler Assembly
OEM Ref: CAT 320 / 320B
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P/N: 9W-7505
Track Chain Assembly
OEM Ref: CAT 320C
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04

Filters & Maintenance Kits

P/N: 1R-0739
Engine Oil Filter
OEM Ref: CAT 320 / 320C / 320D
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P/N: 1R-0755
Fuel Filter (Primary)
OEM Ref: CAT 320 Series
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P/N: 6I-2499
Air Filter Element
OEM Ref: CAT 320C / 320D
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P/N: 1R-0722
Hydraulic Oil Filter
OEM Ref: CAT 320 Hydraulic System
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05

Electrical Components

P/N: 6T-0483
Alternator
OEM Ref: CAT 320 / 320B / 320C
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P/N: 6T-8090
Starter Motor
OEM Ref: CAT 320 / 320B
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P/N: 198-4773
Monitor Display Panel
OEM Ref: CAT 320C
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