Part number lookup

304CR Replacement Parts

Cross-reference and compare 13 replacement listings for OEM / aftermarket part number 304CR. Use this part-number page — not a generic equipment or brand hub — to review price, availability, and fitment before ordering.

13 Matching Products

1 Set Piston Ring 1992151 for Caterpillar CAT 304CR Mini Hydraulic Excavator S4L2 EngineCaterpillar1 Set Piston Ring 1992151 for Caterpillar CAT 304CR Mini Hydraulic Excavator S4L2 Engine$138.6619 Teeth Drive Sprocket 158-4795 163-9997 for Caterpillar CAT Excavator 304CCR 304.5 305.5 306 305CR 305D 305ECaterpillar19 Teeth Drive Sprocket 158-4795 163-9997 for Caterpillar CAT Excavator 304CCR 304.5 305.5 306 305CR 305D 305E$216.0023 Teeth Drive Sprocket 264-5371 for Caterpillar CAT Excavator 303.5D 303.5CCR 303.5E 303CCR 304DCR 304ECaterpillar23 Teeth Drive Sprocket 264-5371 for Caterpillar CAT Excavator 303.5D 303.5CCR 303.5E 303CCR 304DCR 304E$172.004 Terminal Ignition Switch 237-3530 2373530 with Key for Caterpillar CAT 305CR 304CR 303 CR Mini Hydraulic Excavator K4N S4L2 S3L2 EngineCaterpillar4 Terminal Ignition Switch 237-3530 2373530 with Key for Caterpillar CAT 305CR 304CR 303 CR Mini Hydraulic Excavator K4N S4L2 S3L2 Engine$77.67A/C Condenser Core 191-9029 for Caterpillar CAT Excavator 304 304CR 305 305.5 305CR 306 306ECaterpillarA/C Condenser Core 191-9029 for Caterpillar CAT Excavator 304 304CR 305 305.5 305CR 306 306E$214.00A/C Condenser Core 191-9029 for Caterpillar CAT Excavator 304 304CR 305 305.5 305CR 306 306ECaterpillarA/C Condenser Core 191-9029 for Caterpillar CAT Excavator 304 304CR 305 305.5 305CR 306 306E$219.00Cylinder Head 31A0115011 31A0115021 31A0151043 for Mitsubishi S4L S4L2 Engine MM35T MM40CR ExcavatorMitsubishiCylinder Head 31A0115011 31A0115021 31A0151043 for Mitsubishi S4L S4L2 Engine MM35T MM40CR Excavator$855.77Cylinder Head Gasket 2188533 for Caterpillar CAT Engine 3013C C2.2 Excavator 303.5 302.5 303.5CR 304 305CR 305.5CRCaterpillarCylinder Head Gasket 2188533 for Caterpillar CAT Engine 3013C C2.2 Excavator 303.5 302.5 303.5CR 304 305CR 305.5CR$84.47Fuel Injection Pump 213-8281 for Caterpillar CAT Engine S4L2 Excavator 304CRCaterpillarFuel Injection Pump 213-8281 for Caterpillar CAT Engine S4L2 Excavator 304CR$1,282.86Fuel Injector Nozzle 214-3879 for Caterpillar Excavator 302.5C 303 304 305 Wheel Loader 904BCaterpillarFuel Injector Nozzle 214-3879 for Caterpillar Excavator 302.5C 303 304 305 Wheel Loader 904B$124.18Fuel Shutoff Solenoid 195-8411 for Caterpillar CAT 305CR 304CR 303CR 302.5C Mini Hydraulic Excavator K4N S3L2 S4L2 EngineCaterpillarFuel Shutoff Solenoid 195-8411 for Caterpillar CAT 305CR 304CR 303CR 302.5C Mini Hydraulic Excavator K4N S3L2 S4L2 Engine$122.17Joystick Control 248-0100 248-0101 for Caterpillar CAT Excavator 303 304 305 303 304CR 305CRCaterpillarJoystick Control 248-0100 248-0101 for Caterpillar CAT Excavator 303 304 305 303 304CR 305CR$319.00Pilot Valve 249-4745 for Caterpillar CAT Excavator 303 304 305 303CR 304CR 305CRCaterpillarPilot Valve 249-4745 for Caterpillar CAT Excavator 303 304 305 303CR 304CR 305CR$240.00

Part Numbers and Cross References

CA1992151199-2151304CRNAD00001-UP158-4795CA1584795163-9997305CR264-5371303.5EZX27U2ZX27U3ZX29U-3ZX29U-3FZX30UZX30U-2ZX30U-3237-3530CA2373530DSA00001-UPDGT00001-UPDMA00001-UPCA191-9029191-902931A01-1501131A01-1502131A01-51043MM35TMM40CRCA2188533218-85333013C303.5CR213-82810945007170CA2138281CA214-38792143879S4Q2T302.5C303CR195-8411CA1958411Engine303Engine304CR248-0100248-0101249-4745CA2494745

Applications and Fitment Summary

  • Part Number
  • Caterpillar · s: Fit For Caterpillar Excavator: 304 C CR, 304.5, 305.5, 306, 304CR, 305CR, 305D, 305E
  • Caterpillar · s: Fit For Caterpillar Excavator: 304.5, 305.5, 306, 303.5 D, 303.5C CR, 303.5E, 303C CR, 304CR, 304D CR, 304E, 305CR Fit For Hitachi Excavator: ZX27U-3F, ZX27U2, ZX27U3, ZX29U-3, ZX29U-3F, ZX30U, ZX30U-2, ZX30U-3, ZX30U-3F, ZX30UR-2, ZX30UR-2U, ZX30UR-3, ZX33U-3, ZX33U-3F, ZX35B, ZX35U, ZX35U-3, ZX35U-3F, ZX35U2, ZX38U-3, ZX38U-3F, ZX40UR-2, ZX40UR-2D, ZX40UR-2DU, ZX40UR-2U, ZX40UR-3, ZX40UR-3D Fit For John Deere Excavator: 27D, 35D, 35G
  • Caterpillar · s:for Caterpillar Excavator: 304, 304CR, 305, 305.5, 306, 305CR, 306E
  • Caterpillar · s: Fit for Caterpillar Excavator: 304, 304CR, 305, 305.5, 306, 305CR, 306E
  • Caterpillar · s: For Caterpillar CAT Mini Hydraulic Excavator: 304CR
  • Caterpillar · Caterpillar 302.5C 303 304 305 Mini Hydraulic Excavator
  • Caterpillar · s: Fit for Caterpillar CAT Excavator 303CR, 304CR, 305CR, 303, 304, 305
  • Caterpillar · s:for Caterpillar CAT Excavator: 303, 304, 305, 303CR, 304CR, 305CR

Frequently Asked Questions

What parts replace OEM number 304CR?

This page lists 13 replacement listings indexed under 304CR. Compare cross references, applications, and pricing before ordering.

How do I confirm fitment for 304CR?

Match the stamped part number first, then verify machine model, engine code, serial number, mounting points, and photos of your old part before checkout.

Can I request a quote if 304CR is not an exact match?

Yes. Use the fitment inquiry form with your machine plate, engine model, and photos. Support can review alternatives or cross references.

Confirm fitment & quote details

Send machine details and nameplate photos before ordering high-risk or quote-only parts.