CAT C18 Tier II New Surplus QT-2

General Specification Highlights

• Configuration: Inline-6, 4-stroke diesel.

• Displacement: 18.1 L (1104.5 in³)

• Bore × Stroke: 145 mm (5.7 in) × 183 mm (7.2 in)

• Compression Ratio: ~16.3:1 (depending on rating)

• Rated Speed: ~1,800-2,100 rpm range for the higher power ratings.

• Maximum Engine Power: 800 hp (597 kW) for the Tier 2 equivalent rating.

• Maximum Torque: ~2,696 lb-ft (≈3,655 Nm) at ~1,400 rpm for the 800 hp rating.

Emissions & Rating Info

• The 800 hp rating is offered as a Tier 2 (U.S. EPA Tier 2 equivalent) or equivalent (China Stage III / EU Stage IIIA) version. Pon Cat+1

• Note: “Tier 2” in this context is for industrial / non-road version / non-certified variant. Always verify the actual emissions certification for your region/application.

Physical / Installation Spec Highlights

• Approximate dry weight (basic engine, no extras): ~3,688 lb (≈1,673 kg).

• Approximate dimensions:

  • Length: ~1,388–1,414 mm (54.6–55.7 in)

  • Width: ~921–974 mm (36.3–38.3 in)

  • Height: ~1,243–1,257 mm (48.9–49.5 in)

Additional Features & Notes

• Aspiration: Turbocharged, aftercooled (for the 700-800 hp range a twin turbocharged aftercooled version is available).

• Fuel system: Direct injection (MEUI or ACERT technology depending on variant)

• Controls: Electronic governing, diagnostics, monitor system with ECU.

• Designed for industrial / power-system / heavy-duty applications: broad application range (mining, pumps, drilling, etc).