MERCEDES 642-140-17-60-64 Valve Benz

( Part Type: Valve ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Replaces Part Number: 6421400560, 642140056080, 6421400760, 642140076028, 642140076080, 6421401760, 642140176080, 642140176087 ), ( UPC: 642140176064 )

Review MERCEDES benz Genuine Valve

The **Mercedes-Benz 642.140.17.60** intake valve, part of the broader **642.140.17.x** series, represents a precision-engineered component designed for high-performance internal combustion engines, particularly those found in luxury and high-end Mercedes-Benz vehicles. Crafted from high-grade **1.2379 (X40CrMo16-5)** or **1.2767 (X46CrSiMo17-1)** steel, this valve is forged to exacting standards to ensure durability, thermal resistance, and optimal airflow efficiency. The **642.140.17.60** designation specifically identifies it as a **64mm head diameter intake valve**, tailored for engines requiring robust yet lightweight valve construction such as those in the **M113, M117, or M119** engine families, which power iconic models like the **AMG series, S-Class, or high-performance E-Class variants**. The valve s **64 valve configuration** (common in modern high-revving engines) ensures balanced combustion dynamics, reducing turbulence while maximizing volumetric efficiency, a critical factor in achieving both power output and fuel economy.

The design incorporates a **shallow valve angle** and a **smooth, polished seat face**, optimized for seamless contact with the valve seat insert, minimizing friction and preventing premature wear. The **stem diameter** is meticulously calibrated to fit within the engine s valve guide system, ensuring precise operation and longevity, even under extreme operating conditions such as high RPM or aggressive driving styles. Additionally, the valve is **nitrided or plasma nitrided** on the stem to enhance wear resistance and corrosion protection, a common treatment for performance-oriented applications where reliability is paramount. Whether installed in a naturally aspirated AMG engine or a turbocharged luxury powertrain, this valve exemplifies Mercedes-Benz s commitment to engineering components that balance **performance, precision, and longevity**, making it an essential part of maintaining peak engine function in high-demand applications.

### Pros and Cons of Buying a Mercedes-Benz 642 (140.140-17-60) Engine

The Mercedes-Benz 642 engine, also known as the **M117 E642**, is a robust inline-six diesel unit originally introduced in the late 1980s and widely used in Mercedes-Benz vehicles from the 1990s through the early 2000s. Below is a detailed breakdown of its advantages and disadvantages.

---

### **Pros**

1. **Proven Reliability and Durability**

The 642 engine is renowned for its longevity, especially when properly maintained. Many examples have exceeded 300,000 to 500,000 miles with minimal issues, particularly in commercial or fleet applications where it was often subjected to heavy use. Its robust construction and simple design contribute to its reputation as a "workhorse" engine.

2. **High Torque Output**

This engine produces substantial torque (around 300 350 lb-ft, depending on tuning and modifications), making it well-suited for towing, hauling, and high-load applications. Its torque curve is smooth and usable across a wide RPM range, which is beneficial for heavy-duty driving.

3. **Modularity and Upgrade Potential**

The 642 engine shares many components with other Mercedes-Benz diesel engines in the M117 family (such as the 636, 638, and 646), allowing for easy upgrades. Aftermarket support is extensive, with options for turbocharger upgrades (e.g., Garrett or BorgWarner), fuel system modifications (e.g., Bosch or Delphi injectors), and cylinder head work (e.g., porting or valve job).

4. **Fuel Efficiency**

For its power output, the stock 642 engine is relatively fuel-efficient, especially when compared to modern turbocharged gasoline engines. In its stock form, it typically consumes around 10 15 MPG in a heavy-duty vehicle, though this can vary based on driving conditions and modifications.

5. **Availability of Parts**

Due to its widespread use in Mercedes-Benz vans, trucks, and SUVs (such as the Sprinter, R-Class, and ML320/430 CDI), parts for the 642 engine remain widely available. This includes OEM components, aftermarket upgrades, and rebuild kits. The engine s simplicity also means that repairs are often more straightforward and less expensive than those for modern, complex turbocharged engines.

6. **Low-Speed Torque for Towing**

The 642 s naturally aspirated or lightly turbocharged (in some variants) design provides strong low-end torque, which is ideal for towing trailers, boats, or other heavy loads without relying on high RPMs.

7. **Ease of Maintenance**

Compared to modern engines with sophisticated emissions systems (e.g., DPF, EGR, or complex turbochargers), the 642 engine is relatively easy to maintain. Basic maintenance tasks like oil changes, fuel filter replacements, and timing belt inspections are straightforward and less prone to modern "computerized" issues.

8. **Resale Value in Niche Markets**

While not a high-demand engine in the general market, the 642 retains a loyal following among diesel enthusiasts, truckers, and off-roaders. Modified examples (especially those with turbo upgrades or high-torque builds) can command a premium in specialized circles.

9. **Off-Road and Heavy-Duty Capability**

The 642 s simplicity and torque make it a popular choice for off-road and overlanding applications. Its lack of complex emissions systems means it can handle rough conditions without the risk of catastrophic failure from contaminated air or fuel.

10. **Cost-Effective for High-Mileage Use**

For those who prioritize durability over modern convenience, the 642 engine offers a cost-effective solution for high-mileage driving. The initial purchase price of a vehicle with this engine is often lower than that of a modern diesel, and long-term repair costs can be minimal if the engine is well-maintained.

---

### **Cons**

1. **Outdated Emissions Standards**

The 642 engine was designed for pre-EGR (Exhaust Gas Recirculation) and pre-DPF (Diesel Particulate Filter) regulations. Modern vehicles must comply with stricter emissions laws, which can lead to issues if the engine is installed in a newer chassis without proper modifications. Retrofitting emissions systems (e.g., adding an EGR cooler, DPF, or DEF system) can be costly and complex.

2. **Noise and Vibration**

The 642 engine, especially in its stock form, can be noisy and vibrate noticeably at higher RPMs. This is due to its naturally aspirated or lightly turbocharged design, which lacks the refinement of modern turbocharged engines. Vibration can also be an issue in poorly balanced or modified examples.

3. **Poor Fuel Economy with Modifications**

While stock, the 642 is fuel-efficient, but aggressive modifications (e.g., large turbochargers, high-flow fuel injectors, or forced induction) can drastically reduce MPG. Expect to see fuel economy drop significantly if the engine is tuned for high power output.

4. **Limited Power Output Stock**

The stock 642 engine produces modest power by modern standards (around 150 200 horsepower, depending on the variant). While this is sufficient for many applications, it may feel underpowered in comparison to contemporary turbocharged engines, especially in larger vehicles.

5. **Potential for Internal Wear**

- **Rod bearings and main bearings**: These can wear out over high mileage, leading to oil consumption or catastrophic failure if not addressed.

- **Camshaft wear**: The camshaft lobes can wear down, causing valve train issues or reduced performance.

- **Piston rings and cylinder wear**: High-mileage engines may develop compression loss, leading to poor fuel economy and power.

Regular maintenance and rebuilds are essential to mitigate these risks.

6. **Fuel System Limitations**

The stock fuel system (e.g., Bosch LPHEOS or Delphi injectors) can become unreliable over time, leading to misfires, poor idle, or complete failure. Upgrading to high-quality aftermarket injectors or a modern fuel pump is often necessary for reliable performance.

7. **Turbocharger Reliability (If Modified)**

While the stock 642 is naturally aspirated, many owners add turbochargers to increase power. Aftermarket turbos (e.g., Garrett GTX or BorgWarner EFR) can be reliable, but they require proper installation, intercooling, and tuning to avoid issues like turbo lag, overheating, or premature failure.

8. **Complexity of Modern Retrofits**

Installing a 642 engine in a modern vehicle (e.g., a Sprinter or R-Class) can be challenging due to differences in wiring, fuel systems, and emissions requirements. Retrofitting may require custom fabrication, additional sensors, or software tweaks to ensure compatibility.

9. **Limited Aftermarket Support for Some Components**

While parts for the 642 engine are widely available, some specialized components (e.g., high-performance fuel pumps, custom manifolds, or advanced tuning solutions) may require sourcing from niche suppliers. This can add complexity and cost to modifications.

10. **Potential for Overheating**

The 642 engine s cooling system is designed for its original application, which may not always be sufficient for heavily modified or high-torque builds. Upgrading the radiator, water pump, and cooling fans may be necessary to prevent overheating, especially in towing or high-load scenarios.

---

### **Conclusion**

The Mercedes-Benz 642 engine is a **fantastic choice for those seeking a durable, high-torque, and cost-effective diesel engine** for heavy-duty, towing, or off-road applications. Its simplicity, reliability, and extensive aftermarket support make it a favorite among enthusiasts who prioritize longevity and performance over modern convenience. However, it is not without its drawbacks, particularly in terms of noise, emissions compliance, and the need for regular maintenance to prevent wear-related issues.

For **stock or lightly modified use** in a classic or commercial vehicle, the 642 engine is an excellent option. For **high-power applications**, it requires careful modifications and tuning to avoid reliability issues. Additionally, retrofitting this engine into a modern vehicle may involve significant work to meet emissions standards and ensure compatibility.

---

### **Recommendation**

- You are looking for a **durable, high-torque diesel** for towing, hauling, or off-road use.

- You prioritize **long-term reliability and low operating costs** over modern refinements.

- You are prepared to **maintain it properly** (regular oil changes, fuel system upgrades, and rebuilds as needed).

- You plan to **modify it responsibly** (e.g., turbo upgrades, fuel system tweaks) with high-quality aftermarket parts.

- You are targeting a **niche market** (e.g., diesel enthusiasts, truckers, or overlanders) where its strengths are valued.

- You need **high power output** (e.g., 300 horsepower) without significant

Details:

Electrical parts are not returnable. Parts must be resealable and in the original packaging. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer.

part #: 642140176064 prices

• $64.99-$190.00

specifications carfuelinjector:

• for makes: Mercedes
• part type: Valve
• genuine oem: Yes
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• replaces part number: 6421400560, 642140056080, 6421400760, 642140076028, 642140076080, 6421401760, 642140176080, 642140176087
• upc: 642140176064

payments carfuelinjector:

• credit card: Diners-club
• other
• wallet: Apple-pay

general carfuelinjector:

• Air Fuel Delivery > Fuel Injection Parts > Fuel Injectors
• condition: New

returns carfuelinjector:

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

shipping carfuelinjector:

• service: Standard, Overnight
• transit: 4-7 Days
• class: Standard, One-day
• type: Fixed
• cost: $14.00

offer carfuelinjector:

• sold: 0
• started: February 19, 2026
• availability: In Stock
• options: Ship-to-home
• quantity: 1

seller carfuelinjector:

• city: Farmington, Utah
• # reviews: 1157
• rating: 99.2%

Mercedes 642-140-17-60-64 Is Similar To:

• 4 Bosch 0437502047 Fuel Injectors Replacement Includes O-Ring Mercedes-benz (37% similar) Fitment information may not be available for all products and those without fitment will not have a compatibility link...(January 29th, 2014)
• 2003-05 MERCEDES-BENZ C230 1.8 TURBO 2710780549 Best Price Guaranteed (15.5% similar) ...(March 7th, 2014)
• Fuel Injection Cold Start Valve-Bosch WD EXPRESS fits 70-76 Mercedes 300SEL (25.6% similar) 8 am to 6 PO...(May 10th, 2014)
• MERCEDES BENZ VITO VIANO CLASS W639 CDI FUEL INJECTOR 6470700087 OEM (12.7% similar) ...(May 13th, 2014)
• 0437004002 Bosch Fuel Injector W Seal Ring For Mercedes Benz Set Of 6 007603-014102 (31.2% similar) ...(October 27th, 2015)
• Used OEM Mercedes-Benz Diesel Fuel Injectors Set of 5 KCA30S35 4 135 Bar W617 (26.7% similar) Used oem mercedes-benz diesel fuel injectors set of 5 KCA30S35/4 135 bar W617 these are a complete set of 5 diesel fuel injectors for 79-85 mercedes-benz 300D and 300SD posted with mobile...(April 13th, 2014)
• 6420701187 Mercedes Benz 06-15 Sprinter E350 Ml350 Gl350 S350 Diesel Fuel Injector (28.6% similar) Up for sale is a used original part. 122 125MERCEDES benz ML320 350 CID bluet present model's , 125 024MERCEDES benz GL320 350 CID bluet present model's 164. Diesel fuel injector from 2011 mercedes benz sprinter the item shows signs of normal usage...(November 22nd, 2015)
• Mercedes Benz Diesel Fuel Injector A642 070 13 87 for OM642 Dodge Sprinter ML GL (37.7% similar) For sale 1 used genuine mercedes benz diesel injector for mercedes benz engine CID engine OM642I have 6 injectors available part # A642 070 13 87 these are actual pictures you get what you see...(May 13th, 2014)
• Genuine Mercedes-benz Fuel Injector 272078024980 (43.4% similar) New condition...(June 23rd, 2022)
• Genuine Mercedes-benz Exchange Injector With Nozzle 256070560080 (39.3% similar) New condition...(June 25th, 2022)
• Genuine Mercedes-benz Exchange Injector 642-070-12-87-87 (42.1% similar) New condition...(June 27th, 2022)