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Caterpillar 304 Excavator Parts | Aftermarket New, Used and Rebuilt

Caterpillar 304 Excavator Parts

New Aftermarket, Used and Rebuilt 304 Parts

Looking for Caterpillar 304 Excavator parts? You've come to the right place. We sell a wide range of new aftermarket, used and rebuilt 304 replacement parts to get your machine back up and running quickly. Give us a call, submit an online quote request or select a category below to browse/select a part.


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304 150-5694

150-5694

  • Part #: 150-5694
  • Weight: 0.70
  • Fits Machine(s): 304
  • Category(s): Other
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304 218-4681

218-4681

  • Part #: 218-4681
  • Fits Machine(s): 304
  • Category(s): Attachments
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304 Alternator

Alternator

  • Fits Machine(s): 304
  • Category(s): Engines & Engine Parts
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304 Arm Rest

Arm Rest

  • Fits Machine(s): 304
  • Category(s): Cabs
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304 Arm/Crowd/Dipper Cylinder

Arm/Crowd/Dipper Cylinder

  • Fits Machine(s): 304
  • Category(s): Hydraulic Cylinders
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304 Arm/Crowd/Dipper Cylinder Seal Kit

Arm/Crowd/Dipper Cylinder Seal Kit

  • Fits Machine(s): 304
  • Category(s): Hydraulic Cylinders
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304 Back Cushion

Back Cushion

  • Fits Machine(s): 304
  • Category(s): Cabs
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304 Bearing Kit

Bearing Kit

  • Fits Machine(s): 304
  • Category(s): Engines & Engine Parts
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304 Bearing Sleeve

Bearing Sleeve

  • Part #: 265-8724
  • Weight: 0.70
  • Fits Machine(s): 304
  • Category(s): Other
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304 Bearings

Bearings

  • Fits Machine(s): 304
  • Category(s): Final Drives
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304 Bell Housing

Bell Housing

  • Fits Machine(s): 304
  • Category(s): Engines & Engine Parts
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304 Boom

Boom

  • Fits Machine(s): 304
  • Category(s): Booms & Stick Components
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304 Boom Cylinder

Boom Cylinder

  • Part #: 216-0991
  • Weight: 180.40
  • Fits Machine(s): 304
  • Category(s): Hydraulic Cylinders
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304 Boom Cylinder Seal Kit

Boom Cylinder Seal Kit

  • Fits Machine(s): 304
  • Category(s): Hydraulic Cylinders
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304 Bottom Roller

Bottom Roller

  • Fits Machine(s): 304
  • Category(s): Undercarriages
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304 Breaker As

Breaker As

  • Part #: 1712208
  • Weight: 0.20
  • Fits Machine(s): 228, 311C, 308C, 312D2 L, 312D2, 312D, 312C, 311F LRR, 312D2 GC, 312D L, 312C L, 3126B, 311D LRR, 308D, 307D, 306E, 307C, 307, 306, 305.5, 305, 304, 303, 302.5, 301.5, 287, 267, 248, 247, 236, 216, 320D
  • Category(s): Other
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304 Bucket Cylinder

Bucket Cylinder

  • Fits Machine(s): 304
  • Category(s): Hydraulic Cylinders
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304 Bucket Cylinder Seal Kit

Bucket Cylinder Seal Kit

  • Fits Machine(s): 304
  • Category(s): Hydraulic Cylinders
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304 Bucket Link

Bucket Link

  • Fits Machine(s): 304
  • Category(s): Booms & Stick Components
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304 Bushing

Bushing

  • Part #: 996144
  • Weight: 0.10
  • Fits Machine(s): 2484C, 305E, 306, 308E, 308E CR, 308D, 307E, 307C, 308C, 307D, 307B, 307, 306E, 305D CR, 305C CR, 305.5D, 305.5E, 305.5, 304E, 304C CR, 305, 304D CR, 304, 303C CR, 303.5E, 303.5D, 303.5C, 303, 2384C
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304 Bushings

Bushings

  • Fits Machine(s): 304
  • Category(s): Booms & Stick Components
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304 Cab Door

Cab Door

  • Fits Machine(s): 304
  • Category(s): Cabs
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304 Cab Glass

Cab Glass

  • Fits Machine(s): 304
  • Category(s): Cabs
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304 Cab Hatch

Cab Hatch

  • Fits Machine(s): 304
  • Category(s): Cabs
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304 Cab Seat

Cab Seat

  • Fits Machine(s): 304
  • Category(s): Cabs
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304 Cab Shell

Cab Shell

  • Fits Machine(s): 304
  • Category(s): Cabs
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304 Cat Air Filter

Cat Air Filter

  • Part #: 6I2499
  • Weight: 4.35
  • Fits Machine(s): 301.5, CB-214E, CB-22, CB-334D, CB-335D, CB32B, CB22B, CC24B, CB24B, CB-34, CB-334E, CB-214D, 305D CR, 901C, 305, 304D CR, 304C CR, 304.5, 304, 303E CR, 303C CR, 303.5D, 303.5C, 303.5, 302.5, 303
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304 Cat Fuel Filter

Cat Fuel Filter

  • Part #: 156-1200
  • Weight: 1.00
  • Fits Machine(s): 216, 303.5, 302.7D, 304C CR, 304, 303C CR, 304.5, 303E CR, 303.5E, 303.5C, 302.5C, 302.5, 302.4D, 301.7D CR, 302.2D, 301.7D, 301.6C, 301.5, 257B, 247B3, 247B, 242B, 232B, 226B3, 226B, 216B, 216B3
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304 Cat Hex Cap Screw

Cat Hex Cap Screw

  • Part #: 8T4137
  • Weight: 1.00
  • Fits Machine(s): 304
  • Category(s): Hardware & Fasteners
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304 Cat Oil Filter

Cat Oil Filter

  • Part #: 120-0664
  • Weight: 0.50
  • Fits Machine(s): 303.5C, 904H, 904B, 305D CR, 305C CR, 305.5D, 305, 304D CR, 304C CR, 304, 303.5D, 303C CR
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304 Caterpillar Seal Kit

Caterpillar Seal Kit

  • Part #: 2839122
  • Weight: 0.20
  • Fits Machine(s): 303.5D, 305E, 305D CR, 305C CR, 305.5E, 305.5D, 305, 304E, 304D CR, 304C CR, 304, 303C CR, 303.5E, 303.5C
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304 Complete Cab with Interior

Complete Cab with Interior

  • Fits Machine(s): 304
  • Category(s): Cabs
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304 Complete Engine

Complete Engine

  • Part #: 229-8490
  • Weight: 341.00
  • Fits Machine(s): 304
  • Category(s): Engines & Engine Parts
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304 Complete Final Drive (Planetary/Travel) with Motor

Complete Final Drive (Planetary/Travel) with Motor

  • Fits Machine(s): 304
  • Category(s): Final Drives
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304 Complete Final Drive (planetary/travel Drive) with Motor

Complete Final Drive (planetary/travel Drive) with Motor

  • Part #: 300-4246
  • Fits Machine(s): 305D, 304CR, 304, 305D CR, 305E
  • Category(s): Final Drives
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304 Complete Final Drive (planetary/travel Drive) with Motor

Complete Final Drive (planetary/travel Drive) with Motor

  • Part #: 309-9247
  • Fits Machine(s): 305D, 304CR, 304, 305D CR, 305E
  • Category(s): Final Drives
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304 Counterweight

Counterweight

  • Fits Machine(s): 304
  • Category(s): Other
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304 Coupler

Coupler

  • Fits Machine(s): 304
  • Category(s): Attachments
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304 Crankshaft

Crankshaft

  • Fits Machine(s): 304
  • Category(s): Engines & Engine Parts
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304 Cutting Edge

Cutting Edge

  • Fits Machine(s): 304
  • Category(s): Attachments
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304 Cylinder Gp-stick

Cylinder Gp-stick

  • Part #: 2171643
  • Weight: 0.40
  • Fits Machine(s): 304
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304 Cylinder Head

Cylinder Head

  • Fits Machine(s): 304
  • Category(s): Engines & Engine Parts
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304 Cylinder Packing Kits

Cylinder Packing Kits

  • Fits Machine(s): 304
  • Category(s): Hydraulic Cylinders
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304 Decal Set

Decal Set

  • Fits Machine(s): 304
  • Category(s): Other
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304 Digging Bucket

Digging Bucket

  • Fits Machine(s): 304
  • Category(s): Attachments
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304 Ditching Bucket

Ditching Bucket

  • Fits Machine(s): 304
  • Category(s): Attachments
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304 Drive Motor ONLY

Drive Motor ONLY

  • Fits Machine(s): 304
  • Category(s): Final Drives
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304 Engine Hood

Engine Hood

  • Fits Machine(s): 304
  • Category(s): Engines & Engine Parts
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304 Filter

Filter

  • Part #: 1992239
  • Weight: 0.50
  • Fits Machine(s): 302.5C, 303, 304
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304 Filter Gp

Filter Gp

  • Part #: 1449962
  • Weight: 1.00
  • Fits Machine(s): 216B, 302.5C, 302.7D, 303.5, 303.5C, 304, 304.5, 303E CR, 303.5E, 304C CR, 303C CR, 302.2D, 302.5, 301.7D CR, 301.7D, 302.4D, 301.6C, 301.5, 257B, 247B3, 247B, 242B, 232B, 226B3, 226B, 216B3, 216
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304 Final Drive (Planetary/Travel) without Motor

Final Drive (Planetary/Travel) without Motor

  • Fits Machine(s): 304
  • Category(s): Final Drives
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304 Final Drive Gearbox with Propel Motor

Final Drive Gearbox with Propel Motor

  • Part #: 208-0647
  • Weight: 130.00
  • Fits Machine(s): 304C, 304
  • Category(s): Final Drives
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304 Floating Face Seal

Floating Face Seal

  • Fits Machine(s): 304
  • Category(s): Final Drives
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304 Fly Wheel

Fly Wheel

  • Fits Machine(s): 304
  • Category(s): Engines & Engine Parts
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*Sample Image Shown
304 G.e.t. Retainer

G.e.t. Retainer

  • Part #: 8E6209
  • Weight: 0.02
  • Fits Machine(s): 120H, 304, 304.5, 305E, 305.5E, 304E, 304D CR, 307C, 305C CR, 305, 304C CR, 303.5E, 303E CR, 303.5D, 303C CR, 303.5C, 303.5, 140M, 135H, 30/30, 120M, 120K, 120M 2, 120K 2, 120H NA, 120H ES
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304 Gauge, Trans

Gauge, Trans

  • Part #: 199-7952
  • Weight: 0.50
  • Fits Machine(s): 120G, 311B, 311, 312, 311C, 318B, 3176C, 317, 315B L, 314C, 312B L, 3126, 317B LN, 3176B, 315C, 315, 312C L, 3126B, 308C, 307B, 307C, 306, 305, 303, 307, 305.5, 304, 16G, 160G, 14G, 140G, 130G, 12G
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304 Gear Pump

Gear Pump

  • Fits Machine(s): 304
  • Category(s): Hydraulic Pumps
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304 H-Link

H-Link

  • Fits Machine(s): 304
  • Category(s): Booms & Stick Components
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304 Hardware

Hardware

  • Fits Machine(s): 304
  • Category(s): Undercarriages
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304 Hydraulic Kit

Hydraulic Kit

  • Fits Machine(s): 304
  • Category(s): Attachments
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304 Hydraulic Oil Cooler

Hydraulic Oil Cooler

  • Part #: 225-9636
  • Fits Machine(s): 304CR, 304
  • Category(s): Engines & Engine Parts
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304 Hydrostatic Pump

Hydrostatic Pump

  • Fits Machine(s): 304
  • Category(s): Hydraulic Pumps
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304 Idler Group

Idler Group

  • Fits Machine(s): 304
  • Category(s): Undercarriages
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304 Injector

Injector

  • Fits Machine(s): 304
  • Category(s): Engines & Engine Parts
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304 Kit, Hour Meter

Kit, Hour Meter

  • Part #: 9W1494
  • Weight: 0.50
  • Fits Machine(s): 120G, 311C, 312, 318B, 3176C, 317, 315B L, 314C, 312B L, 3126, 311B, 317B LN, 3176B, 315C, 315, 312C L, 3126B, 311, 307C, 307B, 308C, 306, 305, 303, 307, 305.5, 304, 16G, 160G, 14G, 140G, 130G, 12G
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304 Long Block

Long Block

  • Fits Machine(s): 304
  • Category(s): Engines & Engine Parts
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304 Main Control Valve

Main Control Valve

  • Fits Machine(s): 304
  • Category(s): Other
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304 Main Hydraulic Pump

Main Hydraulic Pump

  • Fits Machine(s): 304
  • Category(s): Hydraulic Pumps
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304 Manifold

Manifold

  • Fits Machine(s): 304
  • Category(s): Engines & Engine Parts
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304 Master Link

Master Link

  • Fits Machine(s): 304
  • Category(s): Undercarriages
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304 Master Pin

Master Pin

  • Fits Machine(s): 304
  • Category(s): Undercarriages
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304 Motor Gp

Motor Gp

  • Part #: 2081145
  • Weight: 156.40
  • Fits Machine(s): 304CR, 304
  • Category(s): Final Drives
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304 Motor Gp, Strtr

Motor Gp, Strtr

  • Part #: 199-2334
  • Weight: 8.66
  • Fits Machine(s): 303, 304, 302.5C
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304 Motor, Starter

Motor, Starter

  • Part #: 195-8486
  • Weight: 12.00
  • Fits Machine(s): C2.4, 304, 305
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304 Muffler

Muffler

  • Fits Machine(s): 304
  • Category(s): Engines & Engine Parts
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304 Oil Filter

Oil Filter

  • Part #: 1208757
  • Weight: 1.70
  • Fits Machine(s): 304, 305, 303
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304 Oil Pan

Oil Pan

  • Fits Machine(s): 304
  • Category(s): Engines & Engine Parts
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304 Overhaul Kit

Overhaul Kit

  • Fits Machine(s): 304
  • Category(s): Engines & Engine Parts
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304 Pilot Pump

Pilot Pump

  • Fits Machine(s): 304
  • Category(s): Hydraulic Pumps
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*Sample Image Shown
304 Pin, Lock

Pin, Lock

  • Part #: 8E6208
  • Weight: 0.09
  • Fits Machine(s): 120H, 304, 304D CR, 304.5, 305E, 305.5E, 304E, 307C, 305C CR, 305, 304C CR, 303E CR, 303C CR, 303.5D, 303.5E, 303.5C, 30/30, 303.5, 140M, 135H, 120M, 120K, 120M 2, 120K 2, 120H NA, 120H ES
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304 Pins

Pins

  • Fits Machine(s): 304
  • Category(s): Booms & Stick Components
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304 Planetary Gears

Planetary Gears

  • Fits Machine(s): 304
  • Category(s): Final Drives
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304 ROPS

ROPS

  • Fits Machine(s): 304
  • Category(s): Cabs
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304 Radiator

Radiator

  • Fits Machine(s): 304
  • Category(s): Engines & Engine Parts
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304 Recoil Spring Assembly

Recoil Spring Assembly

  • Fits Machine(s): 304
  • Category(s): Undercarriages
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304 Ripper

Ripper

  • Fits Machine(s): 304
  • Category(s): Attachments
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304 Rockguard

Rockguard

  • Fits Machine(s): 304
  • Category(s): Undercarriages
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304 Sawhead

Sawhead

  • Fits Machine(s): 304
  • Category(s): Attachments
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304 Seal Kit

Seal Kit

  • Part #: 2168100
  • Weight: 0.27
  • Fits Machine(s): 304
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304 Seal Kit

Seal Kit

  • Part #: 2199066
  • Weight: 0.50
  • Fits Machine(s): 304
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304 Seal-kit

Seal-kit

  • Part #: 2167644
  • Weight: 0.40
  • Fits Machine(s): 304
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304 Seals

Seals

  • Fits Machine(s): 304
  • Category(s): Final Drives
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304 Seat

Seat

  • Fits Machine(s): 304
  • Category(s): Cabs
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304 Shaft

Shaft

  • Fits Machine(s): 304
  • Category(s): Final Drives
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304 Shim 0.5-mm Thk

Shim 0.5-mm Thk

  • Part #: 2189377
  • Weight: 0.10
  • Fits Machine(s): 304
  • Category(s): Other
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304 Short Block

Short Block

  • Fits Machine(s): 304
  • Category(s): Engines & Engine Parts
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304 Side Shield

Side Shield

  • Fits Machine(s): 304
  • Category(s): Other
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304 Sight Glass- Gauge Gp-sight

Sight Glass- Gauge Gp-sight

  • Part #: 3476081
  • Weight: 0.39
  • Fits Machine(s): 1190T, 303E CR, 304, 305.5E, 305.5, 304E, 304C CR, 304.5, 305C, 305.5D, 305, 304D CR, 303C CR, 303.5E, 303.5, 303.5D, 303.5C, 303, 2670C, 2590, 2570C, 2491, 2470C, 2391, 2390, 2290, 1390, 1290T
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304 Solenoid

Solenoid

  • Part #: 1568847
  • Weight: 0.75
  • Fits Machine(s): 302.5, 306, 305.5, 305, 304.5, 304, 303.5, 303, 301.5
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304 Sprocket

Sprocket

  • Fits Machine(s): 304
  • Category(s): Undercarriages
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304 Starter

Starter

  • Fits Machine(s): 304
  • Category(s): Engines & Engine Parts
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304 Stick / Dipper Arm

Stick / Dipper Arm

  • Fits Machine(s): 304
  • Category(s): Booms & Stick Components
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304 Swing Bearing / Turntable / Slewing Ring

Swing Bearing / Turntable / Slewing Ring

  • Fits Machine(s): 304
  • Category(s): Swing Machinery
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304 Swing Drive with Motor

Swing Drive with Motor

  • Fits Machine(s): 304
  • Category(s): Swing Machinery
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304 Swing Drive without Motor

Swing Drive without Motor

  • Fits Machine(s): 304
  • Category(s): Swing Machinery
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304 Swing Motor

Swing Motor

  • Fits Machine(s): 304
  • Category(s): Swing Machinery
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304 Swivel Joint

Swivel Joint

  • Fits Machine(s): 304
  • Category(s): Swing Machinery
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304 Thumb

Thumb

  • Fits Machine(s): 304
  • Category(s): Attachments
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*Sample Image Shown
304 Tooth

Tooth

  • Part #: 1U-3202
  • Fits Machine(s): 120H, 303C CR, 304, 303.5E, 303E CR, 305C CR, 305, 304D CR, 304.5, 305E, 305.5E, 304E, 304C CR, 303.5D, 303.5, 303.5C, 212, 205, 206, 140M, 135H, 120M, 120K, 120M 2, 120K 2, 120H NA, 120H ES
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304 Tooth, Uni

Tooth, Uni

  • Part #: 135-8203
  • Weight: 7.50
  • Fits Machine(s): 304.5, 422E, 420F, 424B, 430D, 428E, 428C, 426C, 424B HD, 430E, 428F, 428D, 428B, 424D, 422F, 420D, 420E, 416F, 416E, 416D, 416C, 416B, 414E, 305E, 305D CR, 305C CR, 305.5E, 305.5D, 305, 304C CR, 304
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304 Top Roller

Top Roller

  • Fits Machine(s): 304
  • Category(s): Undercarriages
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304 Track Adjuster Assembly

Track Adjuster Assembly

  • Fits Machine(s): 304
  • Category(s): Undercarriages
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304 Track Adjuster Seal Kit

Track Adjuster Seal Kit

  • Fits Machine(s): 304
  • Category(s): Undercarriages
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304 Track Adjuster Yoke

Track Adjuster Yoke

  • Fits Machine(s): 304
  • Category(s): Undercarriages
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304 Track Chain / Rail

Track Chain / Rail

  • Fits Machine(s): 304
  • Category(s): Undercarriages
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304 Track Frame

Track Frame

  • Fits Machine(s): 304
  • Category(s): Undercarriages
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304 Track Grouser Pad / Shoe

Track Grouser Pad / Shoe

  • Fits Machine(s): 304
  • Category(s): Undercarriages
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304 Turbo Charger

Turbo Charger

  • Fits Machine(s): 304
  • Category(s): Engines & Engine Parts
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304 Washer

Washer

  • Part #: 7X0632
  • Fits Machine(s): 304
  • Category(s): Hardware & Fasteners
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304 Water Pump

Water Pump

  • Fits Machine(s): 304
  • Category(s): Engines & Engine Parts
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304 Wiring Harness

Wiring Harness

  • Fits Machine(s): 304
  • Category(s): Cabs
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