Part number lookup

D300B Replacement Parts

Cross-reference and compare 18 replacement listings for OEM / aftermarket part number D300B. Use this part-number page — not a generic equipment or brand hub — to review price, availability, and fitment before ordering.

18 Matching Products

Fuel Transfer Pump 1W-1695 for Caterpillar CAT Excavator 215 225 235 330 229 350 E240 Engine 3304 3306CaterpillarFuel Transfer Pump 1W-1695 for Caterpillar CAT Excavator 215 225 235 330 229 350 E240 Engine 3304 3306$181.993 pcs Hollow Piston Pin 7N9805 for Caterpillar CAT Truck D250E D25C D25D D300B in USACaterpillar3 pcs Hollow Piston Pin 7N9805 for Caterpillar CAT Truck D250E D25C D25D D300B in USA$206.704 Pairs Con Rod Bearings 4w5739 for Caterpillar CAT 936F 966F 966F II 966G 972G Wheel Loader 3306 3304 EngineCaterpillar4 Pairs Con Rod Bearings 4w5739 for Caterpillar CAT 936F 966F 966F II 966G 972G Wheel Loader 3306 3304 Engine$159.954 Pcs Piston 2w1711 for Caterpillar CAT Excavator E300 EL300 E240 EL240 235D 235C Engine 3306 3304Caterpillar4 Pcs Piston 2w1711 for Caterpillar CAT Excavator E300 EL300 E240 EL240 235D 235C Engine 3306 3304$891.875 Pairs Main Bearings 4w5738 for Caterpillar CAT Excavator 330 L 330B 350 Engine 3304 3304B 3306 3306BCaterpillar5 Pairs Main Bearings 4w5738 for Caterpillar CAT Excavator 330 L 330B 350 Engine 3304 3304B 3306 3306B$211.68Connecting Rod 8N1721 for Caterpillar CAT Engine 3304 3306 Excavator 225 235 330 350CaterpillarConnecting Rod 8N1721 for Caterpillar CAT Engine 3304 3306 Excavator 225 235 330 350$195.35Crankshaft 4N7693 for Caterpillar CAT 3306 Engine 235 235B 235C ExcavatorCaterpillarCrankshaft 4N7693 for Caterpillar CAT 3306 Engine 235 235B 235C Excavator$1,217.00Crankshaft 4N7693 for Caterpillar CAT 3306 Engine 235 235B 235C ExcavatorCaterpillarCrankshaft 4N7693 for Caterpillar CAT 3306 Engine 235 235B 235C Excavator$1,187.00Crankshaft 4N7693 for Caterpillar CAT 3306 Engine 235 235B 235C ExcavatorCaterpillarCrankshaft 4N7693 for Caterpillar CAT 3306 Engine 235 235B 235C Excavator$1,625.76Cylinder Block Bare 1N3576 for Caterpillar CAT 3306 Engine Truck D250B D250E in USACaterpillarCylinder Block Bare 1N3576 for Caterpillar CAT 3306 Engine Truck D250B D250E in USA$2,762.00Cylinder Block Bare 1N3576 for Caterpillar CAT 3306 Engine Truck D250B D250E in USACaterpillarCylinder Block Bare 1N3576 for Caterpillar CAT 3306 Engine Truck D250B D250E in USA$7,128.17Oil Pump 4W-2448 8N-8635 6I-1346 For Cat Caterpillar Artoculated Dump Truck D250B D25C D25D Engine 3306CaterpillarOil Pump 4W-2448 8N-8635 6I-1346 For Cat Caterpillar Artoculated Dump Truck D250B D25C D25D Engine 3306$511.82Oil Pump 4W2448 for Caterpillar CAT Truck D250B D25C D25D D300B D30C D30D in USACaterpillarOil Pump 4W2448 for Caterpillar CAT Truck D250B D25C D25D D300B D30C D30D in USA$212.63Piston Ring Set 2W1709 for Caterpillar CAT Excavator 225 235 235B 330 350 Engine 3304 3304B 3306 3306BCaterpillarPiston Ring Set 2W1709 for Caterpillar CAT Excavator 225 235 235B 330 350 Engine 3304 3304B 3306 3306B$150.30Plunger 4P-9830 For Caterpillar Articulated Truck D30D D30C D350D D35CCaterpillarPlunger 4P-9830 For Caterpillar Articulated Truck D30D D30C D350D D35C$144.44Spider Bearing 6H2577 for Caterpillar CAT 515 525 563C 573C 613C Tractor Loader 3208 3304 3306 EngineCaterpillarSpider Bearing 6H2577 for Caterpillar CAT 515 525 563C 573C 613C Tractor Loader 3208 3304 3306 Engine$82.93Spider Bearing Assembly 1S9670 for Caterpillar CAT 561B 561C 571G 572G 920 Loader Tractor 3304 3306 3176C EngineCaterpillarSpider Bearing Assembly 1S9670 for Caterpillar CAT 561B 561C 571G 572G 920 Loader Tractor 3304 3306 3176C Engine$86.17Wire 9F4337 for Caterpillar CAT 215 225 229 235 245 330 330B 375 5080 3208 3304 3306 3406 3408 3412 3456 OriginalCaterpillarWire 9F4337 for Caterpillar CAT 215 225 229 235 245 330 330B 375 5080 3208 3304 3306 3406 3408 3412 3456 Original$69.58

Part Numbers and Cross References

1W-1695CA1w16951W-1698D250ED300BD300DD300ED350C7N9805CA7N9805W330BCA4W57394W-57394W5739350GASG3304G3306GEN3304BCA2W17112W-17112W1711CrossD350DEL300CA4W57384W-5738D250B8N1721CA8N17214N7693CA4N76934N7696CA4N7696CA4N76994N-76991N35764W-24488N-86356I-1346CA4W2448CA2W17092W-1709350GEN4P-9830TRUCKSD30DD250EII6H2577CA6H2577D250DR2900R2900GRM-350B1S9670CA1S9670R1600GR1600HR1700GCA9F43379F-4337D350ED400EPR-450C

Applications and Fitment Summary

  • Caterpillar · 815B
  • Caterpillar · 816B
  • Caterpillar · 215
  • Caterpillar · 215B
  • Caterpillar · 225
  • Caterpillar · 235
  • Caterpillar · 235B
  • Caterpillar · 950B
  • Caterpillar · 973
  • Caterpillar · 963
  • Caterpillar · 963 LGP
  • Caterpillar · 966D
  • Caterpillar · 973 LGP
  • Caterpillar · 973C
  • Caterpillar · 120G
  • Caterpillar · 12G
  • Caterpillar · 130G
  • Caterpillar · 140G
  • Caterpillar · 14G
  • Caterpillar · 572G
  • Caterpillar · 627B
  • Caterpillar · 637D
  • Caterpillar · 639D
  • Caterpillar · 518

Frequently Asked Questions

What parts replace OEM number D300B?

This page lists 18 replacement listings indexed under D300B. Compare cross references, applications, and pricing before ordering.

How do I confirm fitment for D300B?

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 D300B 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.