fits model: W123, 240d. make: Mercedes. year: 1977-83.

( Manufacturer Part Number: 0403244008 ), ( Part Type: Fuel Engine Motor Injector Pump ), ( Vintage Part: No ), ( Fuel Type: Diesel ), ( Manufacturer Warranty: Yes ), ( Engine Size: 2.4 L ), ( Country/region Of Manufacture: Germany )
The Mercedes-Benz W123 240d, produced between 1977 and 1983, is renowned for its durability and reliability, which is largely attributed to its 2.4-liter OM617.2 diesel engine. One of the critical components of this engine is the fuel injector pump, specifically the Mercedes 0403244008. This particular injector pump plays a significant role in supplying the engine with the necessary fuel to produce power.
This injector pump houses twelve fuel injectors, each of which delivers fuel to the engine's combustion chambers at precise intervals. Such meticulous fuel delivery contributes to the engine's efficiency and performance. The pump is mounted at the engine's rear, near the fuel tank, and operates using engine vacuum for its suction.
The Mercedes 0403244008 is a mechanically-controlled unit, which means it doesn't need an electrical power source. Injector pump components, including the plungers, needle valves, and others, operate through the engine's hydraulic system. This design kept the engine's electrical requirements to a minimum, making the vehicle more self-sufficient and less prone to electrical malfunctions.
This injector pump is robustly built, with high-quality materials used throughout. Its design ensures excellent fuel pressure and distribution to the injectors, maintaining consistent engine performance under varying load conditions. However, as with any mechanical component, wear and tear can occur over time, requiring periodic maintenance or replacement.
When it comes to replacement, the Mercedes 0403244008 injector pump is an essential upgrade for owners of Mercedes W123 240d cars, particularly those with high-mileage engines. A genuine OEM (Original Equipment Manufacturer) part, like this injector pump, will ensure optimal performance and longevity.
When installation is required, it's essential to follow the recommended steps carefully to maintain the engine's integrity. This typically includes draining the cooling system, removing the fuel lines and potentially the intake manifold. Once the old injector pump is out, the new Mercedes 0403244008 can be installed. Upon completion, testing is vital to diagnose any issues and fine-tune the engine's performance.
The Mercedes 0403244008 injector pump embodies the inherent engineering excellence synonymous with Mercedes-Benz. Its role is essential for the diesel engine in the W123 240d to function effectively, and commitment to its maintenance is crucial to keeping this iconic vehicle performing at its best.
Buying a Mercedes-Benz 1977-83 W123 240d 2.4L engine with a diesel fuel injector pump (Mercedes part number: 0403244008) comes with several potential advantages and disadvantages. below are the most significant points for each.
Advantages:1. Reliability: The Mercedes W123 platform is renowned for its durability and robustness, making it an excellent choice for those seeking a dependable and long-lasting vehicle.
2. Economical: Diesel engines generally offer better fuel efficiency compared to their gasoline counterparts, resulting in reduced overall fuel costs.
3. Power: The 2.4L diesel engine offers ample power and torque for daily driving, especially in older models where power output was a desirable feature.
4. Substantial aftermarket support: The W123 platform is widely popular, and as a result, there is a wealth of aftermarket parts and resources available including the fuel injector pump in question.
5. Classic appeal: For those seeking a classic vehicle with a distinctive look and feel, owning a Mercedes-Benz W123 diesel offers a unique driving experience and a certain level of prestige.
Disadvantages:1. Complexity: Diesel engines can be more intricate than their gasoline counterparts, which can lead to increased maintenance costs, especially when dealing with aging components like the fuel injector pump.
2. Sound: Diesel engines are known for their distinct noise, which may not appeal to everyone. The W123 240d is no exception.
3. Emissions: Older diesel engines do not meet modern emissions standards, meaning potential modifications or upgrades might be necessary for compatibility with current regulations.
4. Availability of original parts: Finding original and readily available replacement parts for older Mercedes-Benz engines can be a challenge, and prices for rare components can be high.
5. Cost of operation: While diesel engines are efficient, the upfront cost of purchasing and installing the vehicle or its components including the fuel injector pump can be substantial.
Conclusion:When considering the purchase of a Mercedes-Benz 1977-83 W123 240d 2.4L engine with a diesel fuel injector pump (part number: 0403244008), buyers must weigh the pros and cons carefully. For those seeking a reliable, efficient, and powerful vehicle with a classic appeal, the advantages may outweigh the disadvantages. However, potential buyers must be prepared for the potential complexity, higher upfront costs, and ongoing maintenance that comes with owning an older diesel engine. Ultimately, purchasing this engine and its fuel injector pump is a decision that depends on individual preferences and priorities.
Recommendation:If you have a strong affinity for classic vehicles, enjoy the quirks of diesel engines, and are willing to invest in the necessary maintenance, then purchasing the Mercedes-Benz W123 240d diesel engine with its fuel injector pump could be an excellent choice. Just remember to thoroughly research local aftermarket support, availability of original parts, and potential modifications needed for regulatory compliance before making the purchase.
It has sat on the shelf for a few months so I would suggest doing rebuild unit in case you are restoration. This injection pump was removed from a running 1980 240D with 150k on the odometer.