1
Weichai Power Co., Ltd.
Weifang, Shandong
Marine, industrial, power generation engines
Global leader, very large
Key subsidiary of Shandong Heavy Industry
2
Yuchai Machinery Group Co., Ltd.
Yulin, Guangxi
Marine, industrial, agricultural, gen-set engines
Very large
One of China’s largest diesel engine producers
3
Cummins China (Cummins Inc. JVs)
Beijing
Industrial, power generation, marine engines
Very large
Multiple major JVs (e.g., Dongfeng Cummins)
4
Shanghai Diesel Engine Co., Ltd. (SDEC)
Shanghai
Marine, engineering machinery, power generation
Very large
State-owned, part of SAIC Motor
5
Quanchai Power Co., Ltd.
Quanjiao, Anhui
Multi-cylinder diesel engines for various applications
Large
Major producer for agricultural and industrial use
6
Changchai Co., Ltd.
Changzhou, Jiangsu
Small diesel engines, agricultural, industrial
Large
Leading small horsepower diesel engine maker
7
Jiangsu Changjiang Engine Co., Ltd.
Nantong, Jiangsu
High/medium/low-speed marine diesel engines
Large
Key marine engine manufacturer
8
Zhengzhou Diesel Machinery Co., Ltd.
Zhengzhou, Henan
Diesel engines for gen-sets, construction, agriculture
Large
Part of China National Heavy Duty Truck Group
9
Anhui Quanchai Engine Co., Ltd.
Quanjiao, Anhui
Multi-cylinder diesel engines for machinery
Large
Core subsidiary of Quanchai Group
10
Shandong Huasheng Diesel Engine Manufacturing
Weifang, Shandong
Single & multi-cylinder engines for machinery
Medium-Large
Significant regional manufacturer
11
Jinan Diesel Engine Co., Ltd.
Jinan, Shandong
High-speed diesel engines for marine, industrial
Medium-Large
Part of China Shipbuilding Industry Corp
12
Zhejiang Xinchai Co., Ltd.
Shaoxing, Zhejiang
Small multi-cylinder diesel engines
Medium
Major supplier for agricultural equipment
13
Guangxi Yuchai Machinery Co., Ltd.
Yulin, Guangxi
Marine, generator, construction engine division
Very large
Core operating unit of Yuchai Group
14
Changzhou Xili Automobile Engine Co., Ltd.
Changzhou, Jiangsu
Diesel engines for industrial and marine use
Medium
Industrial engine specialist
15
Jiangsu Jianghuai Engine Co., Ltd.
Yangzhou, Jiangsu
Diesel engines for gen-sets, machinery
Medium
Part of JAC Motors group
16
Shandong Dinggong Engine Co., Ltd.
Weifang, Shandong
Small diesel engines for various applications
Medium
Specialist in compact diesel engines
17
Hangzhou Shuangniao Engine Co., Ltd.
Hangzhou, Zhejiang
Small general-purpose diesel engines
Medium
Known for portable and industrial engines
18
Zhongchai Holding Co., Ltd.
Changzhou, Jiangsu
Small diesel engines and power units
Medium
Holding company for Changchai group assets
19
Fujian Quanzhou Diesel Engine Works
Quanzhou, Fujian
Marine and stationary diesel engines
Medium
Key marine engine producer in Southeast China
20
Shandong Laiwu Diesel Engine Manufacturing
Jinan, Shandong
Single-cylinder and small multi-cylinder engines
Medium
Regional industrial engine manufacturer
21
Jiangxi Diesel Engine Industrial Corp.
Nanchang, Jiangxi
High-speed diesel engines for marine, industrial
Medium
State-owned enterprise
22
Hubei Diesel Engine Factory Co., Ltd.
Wuhan, Hubei
Medium-speed diesel engines for various uses
Medium
Historical state-owned engine maker
23
Nanjing Diesel Engine Co., Ltd.
Nanjing, Jiangsu
Diesel engines for construction, agricultural machinery
Medium
Regional manufacturer
24
Shanxi Diesel Engine Industry Co., Ltd.
Datong, Shanxi
High-speed diesel engines for industrial, marine
Medium
Part of China North Industries Group
25
Dalian Diesel Engine Co., Ltd.
Dalian, Liaoning
Medium and high-speed marine/industrial engines
Medium
Significant port city manufacturer
26
Guangzhou Diesel Engine Factory Co., Ltd.
Guangzhou, Guangdong
Marine and power generation diesel engines
Medium
Key manufacturer in South China
27
Chongqing Diesel Engine Co., Ltd.
Chongqing
Small to medium diesel engines for machinery
Medium
Important industrial base in Southwest
28
Tianjin Engine Works
Tianjin
Diesel engines for gen-sets and industrial use
Medium
Northern China manufacturing base
29
Zhejiang Ningbo Diesel Engine Co., Ltd.
Ningbo, Zhejiang
Marine and auxiliary diesel engines
Medium
Port and shipbuilding hub manufacturer
30
Henan Diesel Engine Industry Co., Ltd.
Luoyang, Henan
High-speed diesel engines for various applications
Medium
Central China state-owned manufacturer