Marine Engine
Weichai WH20 Marine Diesel Engine (939–2146 hp)
Weichai WH20 56.55 L 6-cylinder diesel engine, 939–2146 hp (700–1600 kW), 45 ratings for marine work. Each unit nameplate-verified.
Specifications
- Engine Model
- WH20
- Displacement
- 56.55 L
- Cylinders & Configuration
- Inline 6, 4-cycle
- Rated Power Range
- 700–1600 kW (939–2146 hp) @ 720–1000 rpm
- Aspiration
- Turbocharged Aftercooled
- Applications
- Marine
- Documentation
- Nameplate verification + load-test record per serial number
Overview
The Weichai WH20 is a 56.55 L 6-cylinder Weichai diesel engine supplied in 45 factory ratings from 939 hp (700 kW) to 2146 hp (1600 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 WH20 rating, including the 56.55 L displacement and the inline 6-cylinder layout. Ratings that share displacement and cylinder count but differ in output are listed individually in the model selection section.
Model Selection: WH20 Ratings
Each entry in this section is one rating of the Weichai WH20. 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.
6WH20LCD7007.5A0
6WH20LCD7007.5A0 — rated 700 kW (939 hp) at 750 rpm.
6WH20LCD700-7.5
6WH20LCD700-7.5 — rated 700 kW (939 hp) at 750 rpm.
6WH20LCD800-7.2A0
6WH20LCD800-7.2A0 — rated 800 kW (1073 hp) at 720 rpm.
6WH20LCD800-7.2
6WH20LCD800-7.2 — rated 800 kW (1073 hp) at 720 rpm.
6WH20LCD900-7.5
6WH20LCD900-7.5 — rated 800 kW (1073 hp) at 750 rpm.
6WH20LCD900-7.5A0
6WH20LCD900-7.5A0 — rated 900 kW (1207 hp) at 750 rpm.
6WH20LC12301
6WH20LC12301 — rated 905 kW (1214 hp) at 1000 rpm.
6WH20LC13601
6WH20LC13601 — rated 1000 kW (1341 hp) at 1000 rpm.
6WH20LC13601A0
6WH20LC13601A0 — rated 1000 kW (1341 hp) at 1000 rpm.
6WH20LC1360NG1A1
6WH20LC1360NG1A1 — rated 1000 kW (1341 hp) at 1000 rpm.
6WH20LC1360DF1A0
6WH20LC1360DF1A0 — rated 1000 kW (1341 hp) at 1000 rpm.
6WH20LCD1000-1A0
6WH20LCD1000-1A0 — rated 1000 kW (1341 hp) at 1000 rpm.
6WH20LCD10009A0
6WH20LCD10009A0 — rated 1000 kW (1341 hp) at 900 rpm.
6WH20LCD10001
6WH20LCD10001 — rated 1000 kW (1341 hp) at 1000 rpm.
6WH20LCD100-09
6WH20LCD100-09 — rated 1000 kW (1341 hp) at 900 rpm.
8WH20LCD1000-7.5
8WH20LCD1000-7.5 — rated 1000 kW (1341 hp) at 750 rpm.
8WH20LCD1000-7.2
8WH20LCD1000-7.2 — rated 1000 kW (1341 hp) at 720 rpm.
6WH20LC1450-1
6WH20LC1450-1 — rated 1066 kW (1430 hp) at 1000 rpm.
6WH20LC14501A0
6WH20LC14501A0 — rated 1066 kW (1430 hp) at 1000 rpm.
6WH20LC1450DF1A0
6WH20LC1450DF1A0 — rated 1066 kW (1430 hp) at 1000 rpm.
6WH20LC1496NG1A1
6WH20LC1496NG1A1 — rated 1100 kW (1475 hp) at 1000 rpm.
6WH20LC1500-9A0
6WH20LC1500-9A0 — rated 1103 kW (1479 hp) at None rpm.
6WH20LC15201
6WH20LC15201 — rated 1118 kW (1499 hp) at 1000 rpm.
6WH20LC1520-1A0
6WH20LC1520-1A0 — rated 1118 kW (1499 hp) at 1000 rpm.
6WH20LC1520-1A1
6WH20LC1520-1A1 — rated 1118 kW (1499 hp) at 1000 rpm.
6WH20LC1520DF1A0
6WH20LC1520DF1A0 — rated 1118 kW (1499 hp) at 1000 rpm.
6WH20LC16321
6WH20LC16321 — rated 1200 kW (1609 hp) at 1000 rpm.
6WH20LC16321A0
6WH20LC16321A0 — rated 1200 kW (1609 hp) at 1000 rpm.
6WH20LC16321A1
6WH20LC16321A1 — rated 1200 kW (1609 hp) at 1000 rpm.
6WH20LC1632DF1A0
6WH20LC1632DF1A0 — rated 1200 kW (1609 hp) at 1000 rpm.
6WH20LCD12001A0
6WH20LCD12001A0 — rated 1200 kW (1609 hp) at 1000 rpm.
6WH20LCD1200-1
6WH20LCD1200-1 — rated 1200 kW (1609 hp) at 1000 rpm.
8WH20LCD1200-7.5
8WH20LCD1200-7.5 — rated 1200 kW (1609 hp) at 750 rpm.
8WH20LCD120-09
8WH20LCD120-09 — rated 1200 kW (1609 hp) at 900 rpm.
6WH20LC1795-1
6WH20LC1795-1 — rated 1320 kW (1770 hp) at 1000 rpm.
6WH20LC1795-1A0
6WH20LC1795-1A0 — rated 1320 kW (1770 hp) at 1000 rpm.
6WH20LC1795DF1A0
6WH20LC1795DF1A0 — rated 1320 kW (1770 hp) at 1000 rpm.
8WH20LCD14401
8WH20LCD14401 — rated 1440 kW (1931 hp) at 1000 rpm.
8WH20LCD1440-9
8WH20LCD1440-9 — rated 1440 kW (1931 hp) at 900 rpm.
8WH20LC20001
8WH20LC20001 — rated 1470 kW (1971 hp) at 1000 rpm.
8WH20LC20001A0
8WH20LC20001A0 — rated 1470 kW (1971 hp) at 1000 rpm.
8WH20LC2040-9A0
8WH20LC2040-9A0 — rated 1500 kW (2012 hp) at None rpm.
8WH20LC21761
8WH20LC21761 — rated 1600 kW (2146 hp) at 1000 rpm.
8WH20LC2176-1A0
8WH20LC2176-1A0 — rated 1600 kW (2146 hp) at 1000 rpm.
8WH20LCD1600-1
8WH20LCD1600-1 — rated 1600 kW (2146 hp) at 1000 rpm.
Applications
WH20 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 8WH20LCD1600-1), 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 WH20 specification, quantity and destination port for a verified quotation and lead time.
Frequently Asked Questions
What is the power range of the WH20?
The 45 ratings listed on this page run from 939 hp (700 kW) to 2146 hp (1600 kW), at governed speeds between 720 and 1000 rpm.
What displacement and cylinder count does the WH20 use?
Every rating in this family shares the same 56.55 L displacement and inline 6-cylinder, 4-cycle configuration. Ratings differ in output, rated speed and emissions tier rather than in the base engine.
What is the difference between 8WH20LC2176-1A0 and 8WH20LCD1600-1?
8WH20LC2176-1A0 is rated 1600 kW (2146 hp) at 1000 rpm, while 8WH20LCD1600-1 is rated 1600 kW (2146 hp) at 1000 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 WH20 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.
