October 22, 2026
What is a remanufactured car engine?October 21, 2026
What is engine assembly?The M273 is an iconic family of large-displacement, DOHC, naturally aspirated V8 gasoline engines from Mercedes-Benz. It was introduced in 2005 to replace the older 3-valve M113 V8 engine.
Positioning of the M273.923: The M273.923 is the naturally aspirated variant in this family with a displacement of 4.7 liters (4,663 cc), often referred to as 4.5L or 4.7L in marketing materials.
Technical Highlights: Features an all-aluminum cylinder block and head, silicon-aluminum alloy cylinder liner coating, dual continuous variable valve timing (Continuous VVT), a two-stage variable intake
manifold (made of magnesium alloy), and a magnesium alloy valve cover, all designed to deliver smooth, linear power delivery and stability during long-distance cruising.
Compatible Platforms: Specifically designed for Mercedes-Benz full-size luxury SUVs such as the GL 450 4MATIC (early X166/GL platform) and mid-to-large SUVs like the ML 450 4MATIC (W166), among other
all-wheel-drive models.
Our products are exported to various parts of the country, and the customers we have worked with have received unanimous praise. The company has invested over 20 million yuan in high-end remanufacturing equipment imported from abroad and a first-class production team in the country. Our warehouse has a total area of over 8000 square meters, with scientific management and sufficient supply of goods.
Engine Specifications:
Engine Code: M273.923 (M273 KE 47)
Cylinder Configuration: V-type 8-cylinder (V8), 90-degree angle
Displacement: 4.7 Liters (4,663 cc)
Bore x Stroke: 92.9 mm × 86.0 mm
Intake and Fuel Delivery: Naturally Aspirated + Manifold Electronic Fuel Injection (ME-SFI)
Valve Train: DOHC 32-valve, with Dual Variable Valve Timing (VVT) and Variable Intake Manifold
Block/Head Material: All-aluminum block / Aluminum cylinder head
Emissions Standards: Euro 4 / Euro 5
Fitment / Compatible Vehicles:
Mercedes-Benz GL-Class:
X164 / X166 (GL 450 4MATIC 4.7L V8 - 2007–2012)
Mercedes-Benz ML-Class:
W164 / W166 (ML 450 4MATIC - 2009–2011)
Common OEM / OE Part Numbers:
Long Block / Engine Assembly:
2730100400, 2730101500, A2730100400, A2730101500
Camshaft VVT Adjusters: 2720500147, 2720500347, A2720500147
Camshaft Adjuster Magnet/Sensor: 2720510177, A2720510177
Oil Pump Assembly: 2731800101, A2731800101
| Model Number | 273923 |
| Place of Origin | Guangdong, China |
| Condition | New |
| Purpose | for replace/repair |
| Type | Gas / Petrol Engine |
| Power | OEM Standards |
| Quantity (pieces) | 1 - 10 | 11 - 50 | > 50 |
| Lead time (days) | 7 | 15 | To be negotiated |
1. Our remanufactured products use accessories provided by well-known brand suppliers such as VICTORREINZ, SCHAEFFLER, KS KOLBENSCHMIDT GmbH, etc.
2. Our product quality is close to the original factory quality, but the price is only 50-60% of the original engine. We can also provide you with a one-year or 100000 kilometer warranty service for the entire machine, and professional after-sales personnel will follow up with you.
3. We have over 15 years of experience in the production and research of automotive engines, and our technical level and personnel training are very scientific and mature. Customers who have worked with us have expressed their agreement with our products and after-sales service.
4. 2018 It has achieved an annual production capacity of 2200 units and has become a major supplier of high-end engine remanufacturing and parts in China's automotive aftermarket.
5. In April 2021, T/CAAMTB passed the certification company of China Automobile Research and Huacheng. 19-2019 Certification of the management system requirements of gas vehicle parts remanufacturing enterprisesIn October 2021, he became a member of the National Green Manufacturing Technology Standardization Committee and participated in the drafting of the Technical Specification for Assembly of Remanufacturing Mechanical and Electrical Products.
October 22, 2026
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What is engine assembly?
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