Caterpillar C18 Engine & Spare Parts

Caterpillar Engine | Mining Engine Parts Catalog

Caterpillar C18 Engine Product image

18.1L industrial engine

Technical Specifications

Displacement18.1L
ConfigurationInline 6-cylinder
Power Range429-597 kW (575-800 hp)
Fuel SystemACERT/Common Rail

View Details

  • Displacement: 18.1L Inline 6-cylinder
  • Power Range: 429-597 kW
  • Fuel System: ACERT/Common Rail
  • Applications: Large excavators, dozers
  • Features: Balanced power and efficiency

Part Numbers & Cross-Reference

OEM Part No.Description
1R-1808Advanced high-efficiency engine oil filter (spin-on) for CAT C15 / C18 / C27 / C32
1R-0749Engine fuel filter for CAT C9 / C15 / C18
326-1644Fuel/water separator filter for CAT C18 (and C7 through C32 families)
10R2776Water pump assembly for CAT C15 / C18 (cross-refs 10R8660 / 2243229)
1R-0750Advanced Efficiency secondary fuel filter for Cat 3406E / C10 / C11 / C12 / C13 / C15 / C16 / C18

Certifications & Standards

ISO 9001:2015

Frequently Asked Questions

How to choose between the C18 and C15?
The C18 (18.1L, up to 597 kW) suits higher-power applications like large excavators (CAT 374/390) and 600+ kVA gensets. The C15 (15.2L, up to 433 kW) is better for trucks and medium construction equipment.

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