Description
4G94S 2.0L Bare Engine / Long Block – Changan Ruixing M90 Replacement Engine
This 4G94S bare engine is a complete long block assembly manufactured to OEM standards for Changan light commercial vehicles. Based on Mitsubishi 4G9-series architecture and produced by Harbin Dongan Auto Engine Co. (Dongan Power), it provides a factory-fresh foundation for your engine swap or rebuild, saving you time and money compared to repairing a worn or seized unit.
Vehicle Compatibility
The 4G94S engine is primarily fitted to the Changan Ruixing M90 light commercial van. Always verify your engine code before purchase. Common applications include:
- Changan Ruixing M90 (睿行M90) – 2.0L (2015 – 2021, various body styles and seat configurations)
- Changan Kaicene Ruixing M90 – 2.0L (low-roof and high-roof versions)
- Changan Ruixing M90 CNG – 2.0L Petrol/CNG dual-fuel (2018 – present)
- Other Changan light commercial or multi-purpose vehicles equipped with the 4G94S engine
Please confirm your engine code before ordering. This is a bare engine assembly; all external components must be transferred from your original engine.
Technical Specifications
Engine Code: 4G94S
Engine Family: Mitsubishi 4G9 series / Dongan manufactured
Displacement: 2.0 Litre (1999 cc)
Cylinder Configuration: Inline 4-cylinder
Valvetrain: SOHC 16-valve (4 valves per cylinder)
Bore × Stroke: 81.5 mm × 95.8 mm
Compression Ratio: 9.5:1
Fuel System: Multi-Point Fuel Injection (MPI)
Power Output: 91 kW (124 hp) @ 5500 rpm (petrol) / 80 kW (CNG mode)
Torque Output: 166 Nm @ 4500 rpm
Cylinder Block Material: Cast Iron R4
Cylinder Head Material: Aluminum, SOHC
Timing Drive: Belt
Phase Regulator: No
Turbocharging: No (naturally aspirated)
Recommended Engine Oil: 5W-30 or 10W-30
Engine Oil Capacity: Approx. 4.0 litres (please verify for your specific application)
Emission Standards: EURO 4 / EURO 5 (depending on variant)
Fuel Type: Petrol / Gasoline (also available in Petrol/CNG dual-fuel)
Engine Type: Bare Engine / Long Block
Condition: Brand New
Certification: TS16949, ISO9001
Warranty: 1 Year / 20,000 Km
What’s Included
- Complete cylinder block with pistons, rings, crankshaft and connecting rods
- Assembled cylinder head with valves, springs and camshaft
- Oil pan and valve cover
- Timing belt cover and timing belt kit installed
Note: This is a bare engine / long block assembly. Intake manifold, exhaust manifold, fuel injectors, throttle body, alternator, starter, engine wiring harness, ECU and all external sensors are NOT included. They must be transferred from your original engine.
Why Choose This 4G94S Bare Engine
- 100% brand new – never remanufactured or refurbished
- Factory compression and oil pressure tested
- Certified to TS16949 and ISO9001 quality standards
- Proven Mitsubishi 4G9-series architecture with strong parts availability
- Packed securely in a wooden crate for safe international freight
- 1-year / 20,000 km warranty included
- Fast global shipping to port or door
If you are looking for a 4G94S engine for sale or a Changan Ruixing M90 2.0 replacement engine, this premium long block provides a factory-fresh start for your vehicle. Order now for a reliable, direct-fit solution.
More Changan Engines & Quick Contact
- Browse Changan engines: View our full Changan engine catalog to find other bare engines and long blocks for your vehicle.
- Need help? Contact us directly on WhatsApp for fast compatibility checks and shipping quotes.
Additional Technical Resources
- Changan Ruixing M90 overview at Baidu Baike – vehicle and engine background.
- Mitsubishi 4G94 engine family specifications at Made-in-China.com – detailed technical data for the 4G9 series.









