Caterpillar Engine 【C7.1 TIER 3 / IMO II】

C7.1 Marine
Propulsion Engine (U.S. EPA Tier 3 / IMO II)

DIMENSIONS &
WEIGHTS

Length

43.1 in

Height

35.1 in

Minimum Width

31.4 in

Maximum Width

33.5 in

Minimum Engine
Dry Weight

1609.0 lb

Maximum Engine
Dry Weight

1676.0 lb

ENGINE
SPECIFICATIONS

Configuration

In-line 6,
4-stroke-cycle diesel

Emissions

U.S. EPA Tier 3
/ IMO II emissions certified (commercial), RCD 2016 compliant, EU Stage IIIA
compliant, CCNR Stage II through reciprocity with EU Stage IIIA

Rated Engine
Speed

2300 – 2700 rpm

Bore

4.13 in

Stroke

5.31 in

Displacement

428.0 in³

Aspiration

Turbocharged-aftercooled
aspiration

Governor

Electronic (A5E2
V2 ECM)

Refill Capacity

Lube Oil System
w/Oil filter change: 20 L (5.3 gal)

Oil Change
Interval

500 hrs

Cooling

Heat exchanger
or keel cooled

Flywheel Housing

SAE No. 03 with
SAE 11.5 in flywheel

Rotation

Counterclockwise
from flywheel end