MERCEDES R654016 Cylinder Head Benz A6540107112 OM654.920

( Manufacturer Part Number: R654016 ), ( Type: Cylinder Head ), ( Material: Aluminum ), ( Vintage Part: No )

Review MERCEDES benz Cylinder Head Oem Used

The **Mercedes-Benz OM654.920 cylinder head (part numbers R654016 and A6540107112)** is a precision-engineered component integral to the performance and reliability of the iconic **M111 3.0L inline-six engine**, a powerplant renowned for its durability and smooth operation across a wide range of Mercedes-Benz models, including the legendary **280SE, 300SE, and 300SD** from the 1970s and early 1980s. This cylinder head, crafted from high-grade cast iron, embodies the engineering sophistication of its era, featuring a robust **six-bolt main bearing cap design** and a **single overhead camshaft (SOHC) configuration** that drives two valves per cylinder via pushrods and rocker arms, ensuring efficient airflow and combustion. The head s **intake and exhaust ports** are meticulously machined to optimize engine breathing, while the **combustion chambers** are precisely contoured to enhance fuel efficiency and torque delivery, a hallmark of the OM654 s reputation for both power and refinement. The **valve guide and seat inserts** are designed for longevity, resisting wear even under the high compression ratios typical of this engine family, which often operated at **8.5:1 or higher** in its naturally aspirated and turbocharged iterations. This cylinder head also incorporates **integrated spark plug bosses** and **camshaft bearing caps**, all of which are engineered to minimize friction and maximize mechanical efficiency. Whether sourced as an **OEM replacement** or a **high-quality aftermarket alternative**, this component is essential for restoring or maintaining the performance integrity of the OM654, a workhorse engine that powered some of Mercedes-Benz s most iconic sedans and coup s. Its compatibility extends beyond the original applications, making it a sought-after part for enthusiasts seeking to revive or modify classic M111 engines, whether for daily driving, track use, or static restoration projects. Proper installation requires attention to **valve lash adjustment**, **head gasket sealing**, and **camshaft alignment**, ensuring the engine operates with the precision and reliability that Mercedes-Benz drivers have come to expect.

### Pros and Cons of Buying a Mercedes-Benz OM654.920 Engine with Cylinder Head R654016/A6540107112

#### **Pros**

1. **Proven Reliability and Durability**

The OM654.920 is a robust inline-6 diesel engine known for its longevity, especially when maintained properly. Many units have exceeded 300,000 500,000 km (186,000 310,000 miles) with minimal major issues, making it a solid choice for long-term use.

2. **High Torque and Towing Capacity**

This engine produces strong torque (around 320 350 Nm at lower RPMs), which is ideal for heavy-duty applications such as towing trailers, hauling cargo, or driving in rugged terrain. It excels in performance-driven vehicles like the Mercedes-Benz Sprinter, Vito, or Actros.

3. **Commonality and Availability of Parts**

As a widely used engine in Mercedes-Benz commercial vehicles, the OM654.920 has a broad aftermarket and OEM parts availability. Finding replacement components, gaskets, or even entire cylinder heads (like the R654016/A6540107112) is relatively straightforward, reducing downtime.

4. **Fuel Efficiency**

Diesel engines like the OM654.920 offer better fuel economy compared to gasoline counterparts, especially in stop-and-go traffic or long-distance driving. This can result in significant cost savings over time.

5. **Modification Potential**

The OM654.920 is a favorite among tuners due to its strong base design. Upgrades such as turbocharger swaps, fuel system modifications, or cylinder head porting can significantly boost power output while maintaining reliability.

6. **Lower Operating Costs (Compared to Modern Engines)**

While newer engines may offer better emissions compliance, the OM654.920 often has lower maintenance costs in the long run, particularly if you avoid excessive modifications that could void warranties or damage components.

---

#### **Cons**

1. **Emissions Compliance and Legal Restrictions**

The OM654.920 is an older engine design (introduced in the late 1990s) and does not meet modern emissions standards (e.g., Euro 6). In many regions, it may require aftermarket emissions solutions (like a diesel particulate filter or exhaust gas recirculation modifications) to pass inspections, adding complexity and cost.

2. **Potential for Wear and Tear**

- **Rod bearings and main bearings** wearing out over time, leading to oil consumption or catastrophic failure if neglected.

- **Turbocharger failure**, often due to poor maintenance (e.g., oil changes, air filter neglect).

- **Injector and fuel system issues**, as older injectors can clog or fail, reducing efficiency.

- **Cylinder head cracking**, especially in high-performance or modified engines. The R654016/A6540107112 head is prone to stress fractures if overheating occurs.

3. **High Initial Cost of Replacement Parts**

While parts are available, high-quality replacements (e.g., a new cylinder head, turbocharger, or fuel pump) can be expensive. For example, a genuine Mercedes-Benz cylinder head (R654016 or A6540107112) may cost several hundred to over a thousand euros, depending on the source.

4. **Fuel Quality Dependence**

The OM654.920 is sensitive to poor-quality diesel fuel, which can lead to clogged injectors, filter blockages, or even engine damage. In regions with inconsistent fuel standards, this can be a recurring issue.

5. **Resale Value and Market Demand**

Older diesel engines like the OM654.920 have declining resale value due to emissions regulations and the shift toward cleaner alternatives. If you plan to sell the vehicle later, you may not recover as much as you invested.

6. **Complexity of Maintenance**

- Regular oil changes (every 5,000 10,000 km or as specified).

- Air filter and fuel filter replacements.

- Turbocharger inspections and potential upgrades.

- Monitoring for leaks (oil, coolant, or fuel) that can lead to bigger problems if ignored.

7. **Potential for Modification Risks**

While tunable, aggressive modifications (e.g., forced induction, high-flow fuel systems) can void warranties, reduce engine life, or cause premature failure if not executed properly. Poorly executed mods often lead to turbo lag, overheating, or catastrophic engine damage.

---

### **Ending Conclusion**

The Mercedes-Benz OM654.920 with cylinder head R654016/A6540107112 is a **powerful, durable, and torque-rich engine** that remains a favorite among enthusiasts and commercial users who prioritize performance and reliability over modern emissions compliance. It is well-suited for applications where high torque, longevity, and modifiability are critical such as in vintage Sprinters, vans, or trucks used for towing or heavy-duty work.

However, its **emissions limitations, potential for wear-related failures, and higher maintenance demands** make it less ideal for everyday urban driving or regions with strict emissions laws. If you are prepared for the challenges including potential modifications to meet emissions standards, vigilant maintenance, and the cost of high-quality parts this engine can be an excellent long-term investment.

For **casual drivers or those in emissions-heavy regions**, a newer diesel or gasoline engine (e.g., OM642, OM651, or a modern turbocharged gasoline V6) may be a more practical choice. For **enthusiasts, tuners, or commercial users**, the OM654.920 remains a compelling option if managed properly.

---

### **Recommendation**

- You are an experienced mechanic or have access to one, ensuring proper maintenance and timely repairs.

- You plan to use the vehicle for heavy-duty tasks (towing, hauling, off-roading) where torque and reliability are paramount.

- You are prepared to invest in emissions compliance solutions (e.g., DPF, EGR modifications) if required by local laws.

- You enjoy modifying engines and are willing to upgrade components (turbo, injectors, fuel system) to extend its lifespan.

- You are buying from a reputable seller with a verified service history, preferably under 200,000 km (124,000 miles) with no major engine issues.

- You prioritize emissions compliance and plan to drive in regions with strict regulations (e.g., Euro 6 areas).

- You lack mechanical knowledge or resources to perform regular maintenance and repairs.

- You are looking for a low-maintenance, long-term vehicle without modification potential.

- The vehicle has a history of neglect (e.g., no oil changes, coolant leaks, or turbo failures).

**Final Verdict:** The OM654.920 is a **great engine for the right owner** one who values performance, is hands-on with maintenance, and understands its limitations. For the average driver, a newer or more compliant engine may be a safer bet. Always inspect the engine thoroughly (check for leaks, compression, turbo condition, and cylinder head integrity) before purchasing.

Details:

Used part out 4500 mile van. Used oem cylinder head. A Mercedes on 654.920 needs to be refinished or refurbished.

part #: r654016 prices

• $266.94-$984.56

specifications cylinderheapar:

• for makes: Mercedes
• mpn: R654016
• type: Cylinder Head
• material: Aluminum
• vintage part: No

offer cylinderheapar:

• options: Ship-to-home
• quantity: 1
• availability: In Stock
• sold: 0
• best offers: True
• started: May 5, 2026

payments cylinderheapar:

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

seller cylinderheapar:

• rating: 100.0%
• # reviews: 120
• city: Langhorne, Pennsylvania

general cylinderheapar:

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

returns cylinderheapar:

• policy: No Returns

shipping cylinderheapar:

• service: USPS Ground Advantage
• type: Calculated
• carrier: USPS
• class: Standard
• transit: 6-9 Days
• cost: $178.78

Mercedes R654016 Is Similar To:

• 000835008122 Mercedes-benz 000835 008122 Nos (40% similar) These parts came from an individual mercedes-benz aficionado whose inventory primarily covered 450SL W107 and 450SEL W116. The parts listed usually will have mercedes-benz packaging or part numbers on them. The parts are sold as is with no warranty and not returnable 122 exhaust manifold stud bolts ...(January 6th, 2018)
• 0231187001 1973 Mercedes Benz W114 W115 Bosch Distributor (29.3% similar) ...(October 17th, 2016)
• 104-990 Mercedes-benz Rare Mercedes 6 Cyl (41.1% similar) Rare mercedes cyl 24 valve engine head cover. Gears,chain,and upper cover included. Removed from 1993 300SE sedan was totaled great condition see pics.: I am closing my mercedes repair and selling cabinets tools, etc. Local pick-up Damon PO...(February 10th, 2017)
• Spring Ponton 11-1645 Mercedes Head Thermo Oem636 King (30% similar) And its affiliates and sisters networks. So I am aware of it to acquire the custom form. All parts of collectors are being wrapped from moment the picture is took. Must contact for shipping prices. Will do over night shipping for fee at cost of shipping. Applications are believed to be for many of ...(April 25th, 2015)
• 1160152001 Mercedes-benz Mercedes M116 R107 (36.7% similar) Will fit mercedes 380 series from and possible other applications. Please match our part number with yours to ensure fitment. You are viewing a good, used timing cover from 1981 mercedes 380SL...(April 13th, 2017)
• 1160162601 Mercedes-benz Mercedes R107 C107 W107 (36.8% similar) Proper for any engine rebuild or restoration. Vintage original, used mercedes benz r C107 450SL cylinder head. Posted with the android app free. No signs of old damage, no warping or cracks, no corrosion. From a 1976 450SLC with 107K miles. Items shipped outside of the us will not be declared as a...(December 17th, 2016)
• 1160162701 Mercedes-benz Mercedes R107 C107 W107 (36.8% similar) From a 1976 450SLC with 107K miles. No signs of old damage, no warping or cracks, but it does have one bent valve. Items shipped outside of the us will not be declared as a or valued at less than the selling price. The head does not appear to be affected. Posted with the android app free. No ...(December 17th, 2016)
• 1160163401 Mercedes-benz Mercedes Left Cylinder (42.5% similar) You are viewing a good, used left driver side cylinder head from 1981 mercedes 380SL. Will fit mercedes 380 series from please match our part number with yours to ensure fitment. Includes rockers all numbered from their original position...(April 10th, 2017)
• 121-010-38-20 Mercedes Benz Ponton Cylinder Head (45.6% similar) It would probably fit a benz from the fifties or 60S please see part number in 1ST photo. Need more photos or questions answered. This is untested and would probably need some attention but seems to be in good shape. To the best of my knowledge, this is a cylinder head 4 mercedes benz engine...(March 11th, 2017)
• 121.010.6120 Mercedes Sl Used Original Cylinder Head Cracked (46% similar) These are obsolete made in the USA or Canada parts that dealers no longer stock. Look to be caused by freezing water at some point in its life. Some of our nos parts have shelf wear or are missing the original boxes. Please here for more mercedes parts a used original MB aluminum cylinder head take ...(April 24th, 2019)
• 1210107120 Mercedes-benz Mercedes 190 190sl (33% similar) All spark plug holes and threads are good. The mating surface was minimally decked for flatness. Built this for a 190 pontoon project only to later discover the block was no good. Head was stripped and cleaned, installed new intake valves all guides stem seals. All valve seats were machined. All ...(February 11th, 2018)