Marine Engine
Weichai M55 Marine Diesel Engine (2002–3944 hp)
Weichai M55 65.65 L 12-cylinder diesel engine, 2002–3944 hp (1493–2941 kW), 47 ratings for marine work. Each unit nameplate-verified.
Specifications
- Engine Model
- M55
- Displacement
- 65.65 L
- Cylinders & Configuration
- V12, 4-cycle
- Rated Power Range
- 1493–2941 kW (2002–3944 hp) @ 1500–1800 rpm
- Aspiration
- Turbocharged Aftercooled
- Applications
- Marine
- Documentation
- Nameplate verification + load-test record per serial number
Overview
The Weichai M55 is a 65.65 L 12-cylinder Weichai diesel engine supplied in 47 factory ratings from 2002 hp (1493 kW) to 3944 hp (2941 kW). Every rating listed on this page is a complete engine for marine duty, not a generator set, and each unit ships with its serial number recorded against the specification sheet that applies to it.
Ratings in this family differ in rated speed, peak torque and emissions tier rather than in displacement or cylinder count, so the choice between them is a duty-matching question. The specifications panel and the per-rating entries on this page are generated from the same source data, so a rating quoted here can be matched directly against a delivery document.
Specifications
The specifications panel lists the family-level values that are common to every M55 rating, including the 65.65 L displacement and the inline 12-cylinder layout. Ratings that share displacement and cylinder count but differ in output are listed individually in the model selection section.
Model Selection: M55 Ratings
Each entry in this section is one rating of the Weichai M55. The rated power is the output at the stated speed; the peak torque figure is the value the rating develops at the lower speed shown, which is what normally decides whether a rating suits a given machine. Each rating carries a stable anchor, so a single rating can be linked or quoted directly.
12M55C2030-15E200
12M55C2030-15E200 — rated 1493 kW (2002 hp) at 1500 rpm.
12M55C2030-15E210
12M55C2030-15E210 — rated 1493 kW (2002 hp) at 1500 rpm.
12M55CD1682E210
12M55CD1682E210 — rated 1529 kW (2050 hp) at 1500 rpm.
12M55CD1805E210
12M55CD1805E210 — rated 1641 kW (2201 hp) at 1500 rpm.
12M55CD1805E211
12M55CD1805E211 — rated 1641 kW (2201 hp) at 1800 rpm.
12M55C2250-15E200
12M55C2250-15E200 — rated 1654 kW (2218 hp) at 1500 rpm.
12M55C2250-18E201
12M55C2250-18E201 — rated 1654 kW (2218 hp) at 1800 rpm.
12M55C2250-15E210
12M55C2250-15E210 — rated 1654 kW (2218 hp) at 1500 rpm.
12M55C2250-18E211
12M55C2250-18E211 — rated 1654 kW (2218 hp) at 1800 rpm.
12M55CD1936E210
12M55CD1936E210 — rated 1760 kW (2360 hp) at 1500 rpm.
12M55C2450-15E200
12M55C2450-15E200 — rated 1800 kW (2414 hp) at 1500 rpm.
12M55C2450-16E200
12M55C2450-16E200 — rated 1800 kW (2414 hp) at 1600 rpm.
12M55C2450-18E201
12M55C2450-18E201 — rated 1800 kW (2414 hp) at 1800 rpm.
12M55C2450-15E210
12M55C2450-15E210 — rated 1800 kW (2414 hp) at 1500 rpm.
12M55C2450-16E210
12M55C2450-16E210 — rated 1800 kW (2414 hp) at 1600 rpm.
12M55C2450-18E211
12M55C2450-18E211 — rated 1800 kW (2414 hp) at 1800 rpm.
12M55CD2050E210
12M55CD2050E210 — rated 1864 kW (2500 hp) at 1500 rpm.
12M55C2600-18E201
12M55C2600-18E201 — rated 1912 kW (2564 hp) at 1800 rpm.
12M55C2600-18E211
12M55C2600-18E211 — rated 1912 kW (2564 hp) at 1800 rpm.
12M55C2700-15E200
12M55C2700-15E200 — rated 1985 kW (2662 hp) at 1500 rpm.
12M55C2700-16E200
12M55C2700-16E200 — rated 1985 kW (2662 hp) at 1600 rpm.
12M55C2700-15E210
12M55C2700-15E210 — rated 1985 kW (2662 hp) at 1500 rpm.
12M55C2700-16E210
12M55C2700-16E210 — rated 1985 kW (2662 hp) at 1600 rpm.
12M55CD2184E210
12M55CD2184E210 — rated 1985 kW (2662 hp) at 1500 rpm.
12M55CD2184E211
12M55CD2184E211 — rated 1985 kW (2662 hp) at 1800 rpm.
12M55C2738-18E201
12M55C2738-18E201 — rated 2013 kW (2699 hp) at 1800 rpm.
12M55C2738-18E211
12M55C2738-18E211 — rated 2013 kW (2699 hp) at 1800 rpm.
16M55C2800-15E200
16M55C2800-15E200 — rated 2060 kW (2762 hp) at 1500 rpm.
16M55C2800-15E210
16M55C2800-15E210 — rated 2060 kW (2762 hp) at 1500 rpm.
12M55CD2420E210
12M55CD2420E210 — rated 2200 kW (2950 hp) at 1500 rpm.
12M55CD2420E211
12M55CD2420E211 — rated 2200 kW (2950 hp) at 1800 rpm.
12M55C3000-18E201
12M55C3000-18E201 — rated 2205 kW (2957 hp) at 1800 rpm.
12M55C3000-18E211
12M55C3000-18E211 — rated 2205 kW (2957 hp) at 1800 rpm.
16M55C3000-15E200
16M55C3000-15E200 — rated 2205 kW (2957 hp) at 1500 rpm.
16M55C3000-15E210
16M55C3000-15E210 — rated 2205 kW (2957 hp) at 1500 rpm.
16M55C3128-18E201
16M55C3128-18E201 — rated 2300 kW (3084 hp) at 1800 rpm.
16M55C3128-18E211
16M55C3128-18E211 — rated 2300 kW (3084 hp) at 1800 rpm.
16M55C3400-15E200
16M55C3400-15E200 — rated 2500 kW (3352 hp) at 1500 rpm.
16M55C3400-18E201
16M55C3400-18E201 — rated 2500 kW (3352 hp) at 1800 rpm.
16M55C3400-15E210
16M55C3400-15E210 — rated 2500 kW (3352 hp) at 1500 rpm.
16M55C3400-18E211
16M55C3400-18E211 — rated 2500 kW (3352 hp) at 1800 rpm.
12M55C3450-18E201
12M55C3450-18E201 — rated 2536 kW (3401 hp) at 1800 rpm.
12M55C3450-18E211
12M55C3450-18E211 — rated 2536 kW (3401 hp) at 1800 rpm.
16M55C3810-18E201
16M55C3810-18E201 — rated 2800 kW (3755 hp) at 1800 rpm.
16M55C3810-18E211
16M55C3810-18E211 — rated 2800 kW (3755 hp) at 1800 rpm.
16M55C4000-18E201
16M55C4000-18E201 — rated 2941 kW (3944 hp) at 1800 rpm.
16M55C4000-18E211
16M55C4000-18E211 — rated 2941 kW (3944 hp) at 1800 rpm.
Applications
M55 engines in this family are normally specified for marine work.
Marine: ratings are quoted against the propulsion or auxiliary duty required, with the gearbox ratio and the duty classification taken into account.
Verification, Documentation and Ordering
Each engine is offered with nameplate verification + load-test record per serial number. That means the model and rating printed on the engine nameplate can be checked against the record issued for that serial number before shipment, which is the point most buyers of re-rated or re-exported engines want covered.
To receive a quotation, send the exact rating from the matrix above (for example 16M55C4000-18E211), the machine or application it will drive, the quantity, and the destination port. If the rating you need is not listed, send the model and the required output and we will confirm whether it belongs to this family or to a neighbouring one.
Buyer tip: Send your M55 specification, quantity and destination port for a verified quotation and lead time.
Frequently Asked Questions
What is the power range of the M55?
The 47 ratings listed on this page run from 2002 hp (1493 kW) to 3944 hp (2941 kW), at governed speeds between 1500 and 1800 rpm.
What displacement and cylinder count does the M55 use?
Every rating in this family shares the same 65.65 L displacement and inline 12-cylinder, 4-cycle configuration. Ratings differ in output, rated speed and emissions tier rather than in the base engine.
What is the difference between 16M55C4000-18E201 and 16M55C4000-18E211?
16M55C4000-18E201 is rated 2941 kW (3944 hp) at 1800 rpm, while 16M55C4000-18E211 is rated 2941 kW (3944 hp) at 1800 rpm. They use the same base engine; the higher rating is the one to specify when the driven load needs the extra torque at the lower speed.
How is a M55 rating ordered?
Send the exact rating shown in the model selection table, the application it will drive, the quantity and the destination port. The engine is then quoted against that rating and confirmed against its nameplate and load-test record.
