MERCEDES Engine Motor Compression 300-85042 Benz V8 4.2L

( Conditions Options: Good Compression ), ( Genuine Oem: Yes ), ( Ipn: 300-85042 ), ( Make: Mercedes-benz ), ( Descriptionpartcondition: 1986 1991 Mercedes 420sel Oem Engine Motor Good Compression V8 4. ), ( Manufacturer Warranty: 90 Day ), ( Engine Size: 4.2 L ), ( Fuel Type: Gasoline ), ( Type: Complete Assembly ), ( Partout Id: A-125401272 )

Review MERCEDES benz Oem Engine Motor Good Compression V8 4.2l fits 420SEL 1986–1991

The Mercedes-Benz 420SEL is a luxurious and powerful vehicle that was produced by Mercedes-Benz between the years 1986 and 1991. This particular model is identified by the engine type, which is a V8, 4.2-liter compression engine with the part number 300-850.42.

The V8 engine is renowned for its superior power and refined performance. It boasts a displacement of 4,196 cc, which translates to an impressive engine size. The compression ratio for this engine is optimized for efficient combustion, providing a powerful output while maintaining excellent fuel economy.

The 420SEL engine is a SOHC (Single Overhead Camshaft) design, which ensures a smooth and responsive engine operation. The camshaft is driven by a timing belt, which requires regular maintenance to ensure the engine continues to run at its best.

The cylinder heads are equipped with four valves per cylinder, arranged in an overhead configuration. This design allows for efficient intake and exhaust flow, contributing to the engine's impressive power output and overall performance.

The engine block is made from high-strength aluminum alloy, which not only adds to the engine's durability but also helps in reducing its weight. The engine block is also equipped with water jackets that circulate coolant around the engine to maintain optimal operating temperatures.

The 420SEL engine is mated to a 4-speed automatic transmission, allowing for smooth and effortless gear changes. The transmission works in conjunction with the engine to deliver a driving experience that is both powerful and refined.

The engine's fuel system consists of a mechanical fuel pump and a Bosch electronic fuel injection system. The electronic fuel injection system ensures precise fuel delivery to the engine, contributing to improved performance and better fuel efficiency.

The 420SEL engine is a masterpiece of engineering, delivering power, performance, and efficiency. Its sophisticated design and advanced technology make it a favorite among car enthusiasts and Mercedes-Benz fans alike. Regular maintenance and proper care are essential to keep this engine running at its best and to ensure the longevity of this iconic vehicle.

The Mercedes-Benz 420SEL with the 4.2L V8 engine, produced between 1986 and 1991, is a classic vehicle known for its luxury, comfort, and powerful engine. However, as with any used vehicle, it's essential to consider both the pros and cons before making a purchase.

1. Powerful Engine: The 4.2L V8 engine produces 217 horsepower, which was impressive for its time. This engine provides ample power for smooth and quick acceleration.

2. Comfortable Ride: The Mercedes-Benz 420SEL is renowned for its comfortable suspension system and refined interior, making it a great choice for long-distance travel.

3. Timeless Design: The classic design of the 420SEL is still appealing to many car enthusiasts. Its elegant exterior and luxurious interior make it a head-turner on the road.

4. Reliability: Mercedes-Benz vehicles have a reputation for being reliable, and the 420SEL is no exception. With proper maintenance, these cars can last for many years.

1. Maintenance Costs: As with any luxury vehicle, the Mercedes-Benz 420SEL can be expensive to maintain. Replacement parts, especially for older models, can be difficult to find and costly.

2. Fuel Economy: The 4.2L V8 engine is not very fuel-efficient. Expect to fill up the tank more frequently than with a smaller or more modern engine.

3. Complexity: The 420SEL has a complex engine and electrical system, which can make repairs more challenging and time-consuming.

4. Rust: Mercedes-Benz vehicles from the 1980s and 1990s are susceptible to rust, especially in regions with harsh winters or high humidity.

The Mercedes-Benz 420SEL with the 4.2L V8 engine is a classic vehicle that offers a powerful, comfortable, and luxurious driving experience. However, owners should be prepared for higher maintenance costs, complex repairs, and potential rust issues.

If you're in the market for a used Mercedes-Benz 420SEL, it's essential to inspect the vehicle thoroughly before making a purchase. Look for signs of rust, especially in the wheel wells and undercarriage. Additionally, have a trusted mechanic inspect the engine, suspension, and electrical systems to ensure they're in good working order. Finally, consider your budget for maintenance and fuel costs before making a final decision.

Details:

If any of the attaching parts are left on engine, they not covered by warranty. These engines are sold with the understanding that wiring, sensors, fuel systems, manifolds, etc. A long block consists of a and head. Orders placed after 2:00 pm CST cannot be guaranteed shipping that day.

May need to be changed fit your application these items may or not on the engine. All maintenance seals, gaskets, and filters MUST replaced prior install maintain warranty. For full. Attached parts Wiring, turbos, sensors, fuel systems, manifolds, alternators, starters, ac compressors, power steering pumps, throttles, etc. Are NOT included unless stated otherwise in the listing. Not just our Heritage, but Legacy 1986 1991 Mercedes 420SEL OEM Engine Motor Good Compression V8 4.2L.

Hospitals, Schools, Farms, storage Units, Home Business, Airports, No Truck/Limited Access zones and Military Bases are not accepted as a valid commercially zoned address. 1986 1991 Mercedes 420SEL OEM Engine Motor Good Compression V8 4.2L: Some vehicles have different specs that must be matched to ensure fit. Engines are shipped completely drained of all fluids.

specifications grokengines:

• for models: 420sel
• for makes: Mercedes
• for years: 1986-1991
• conditions options: Good Compression
• genuine oem: Yes
• ipn: 300-85042
• make: Mercedes-benz
• descriptionpartcondition: 1986 1991 Mercedes 420sel Oem Engine Motor Good Compression V8 4.
• manufacturer warranty: 90 Day
• engine size: 4.2 L
• fuel type: Gasoline
• type: Complete Assembly
• partout id: A-125401272

seller grokengines:

• rating: 99.7%
• # reviews: 62990
• city: Mobile, Alabama

offer grokengines:

• quantity: 1
• availability: In Stock
• best offers: True
• started: April 30, 2026
• sold: 0
• options: Ship-to-home

general grokengines:

• condition: Used
• Car Truck Parts Accessories > Engines Engine Parts > Engines

shipping grokengines:

• type: Fixed
• class: Freight
• service: Flat Rate Freight
• cost: $300.00

returns grokengines:

• time: 30 Days
• policy: Returns Accepted
• paid by: Buyer

payments grokengines:

• other
• credit card: Visa
• wallet: Apple-pay

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