1. Engine Crankshafts Products
  2. sku: 20557651577738632
  3. MERCEDES OM61200

MERCEDES OM61200 Crankshaft Bearings Benz 2.7

fits model: 2500, 3500, Sprinter. make: Mercedes. year: 2002–2006.

Om61200 Mercedes-benz 2002-2006 Sprinter 2500 3500 2.7 Crankshaft With Main Bearings

( Manufacturer Part Number: OM61200 ), ( Part Type: Bearing Crankshaft ), ( Oe/oem Part Number: Sprinter 2.7l Crankshaft ), ( Items Included: Bearing ), ( Country Of Origin: Germany )

Review MERCEDES benz 2.7 Crankshaft Main Bearings fits SPRINTER 2500 3500 2002–2006

The **Mercedes-Benz OM612.00 2.7L Crankshaft Bearings** (compatible with the **2002 2006 Sprinter 2500 and 3500 models**) represent a critical component for maintaining the longevity and performance of this robust diesel engine. Engineered to withstand the high-stress conditions of heavy-duty commercial and commercial van applications, these bearings are precision-machined from high-grade, oil-impregnated bronze or steel-backed composite materials, ensuring optimal load distribution and minimal friction during operation. The OM612.00, a six-cylinder inline diesel engine known for its durability and efficiency, relies on these bearings to support the crankshaft s rotational motion while absorbing the immense torque generated by the turbocharged, direct-injection system. Over time, the relentless demands of towing, hauling, or extended highway driving can lead to wear, oil starvation, or misalignment, compromising the engine s structural integrity. Replacing the crankshaft bearings with genuine or high-quality aftermarket alternatives restores critical engine function, prevents catastrophic failure, and extends the vehicle s operational lifespan. These bearings are designed to fit seamlessly into the engine s main bearing caps, aligning perfectly with the crankshaft journals to ensure smooth operation and reduce the risk of catastrophic seizure. Whether used in a commercial delivery truck, a rugged off-road setup, or a high-mileage fleet vehicle, upgrading or maintaining these components is essential for preserving the engine s power output, fuel efficiency, and overall reliability. Proper installation, using the correct torque specifications and clean oil channels, is vital to prevent premature wear and ensure the engine operates at peak performance for years to come.

The **Mercedes-Benz OM612 2.7L diesel engine** (installed in the 2002 2006 Sprinter 2500/3500) is a robust but aging powerplant with a reputation for reliability when properly maintained. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

---

### **Pros of the OM612 2.7L Engine**

1. **Proven Durability**

The OM612 is a well-designed inline-5 diesel engine that was widely used in Mercedes-Benz vans, trucks, and some passenger cars. With proper maintenance, many examples easily exceed **300,000 500,000 miles**, especially in commercial applications where they were often run hard but well-cared-for. The **cast-iron block and forged crankshaft** contribute to its longevity.

2. **High Torque and Towing Capacity**

The 2.7L OM612 produces **around 140 160 lb-ft of torque**, making it well-suited for heavy-duty towing, payload hauling, and off-road use. This torque is useful for conversions (e.g., ambulances, mobile workshops, or recreational vehicles) where power is more important than raw horsepower.

3. **Simplicity and Repairability**

Compared to modern turbocharged direct-injection diesels, the OM612 is relatively straightforward. Key components like the **pump-nozzle fuel system (PN system)** and **mechanical turbocharger** are easier to diagnose and repair than common rail systems. Many mechanics and DIYers are familiar with its workings, and parts are still widely available.

4. **Fuel Efficiency**

The OM612 is known for its **excellent fuel economy**, typically consuming **8 12 MPG** in mixed driving, depending on load and driving style. This makes it cost-effective for commercial or long-distance use.

5. **Aftermarket Support**

There is a **strong aftermarket community** for the OM612, with aftermarket parts (e.g., turbo upgrades, fuel system upgrades, and performance chips) readily available. Companies like **OM612.com, Diesel Power Specialties, and others** offer support, modifications, and tuning solutions.

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

While maintenance costs can add up, the **cost of fuel, oil, and basic repairs** is generally lower than for newer turbocharged diesels (e.g., OM642, OM651). The PN fuel system is less prone to expensive electronic failures.

7. **Crankshaft Bearings (Specific to Your Concern)**

The **crankshaft bearings** in the OM612 are designed for durability and can last **200,000 miles** if the engine is well-maintained. However, **premature bearing failure** is often linked to:

- **Lack of oil changes** (using the wrong oil or neglecting intervals).

- **Overheating** (due to coolant system issues or driving in extreme conditions).

- **Contaminated oil** (from poor filtration or lack of oil changes).

- **Excessive load** (e.g., towing without proper cooling or oil pressure).

If the bearings have failed, it s critical to **inspect the rest of the engine** (e.g., rod bearings, camshaft bearings, and timing components) for wear, as they may be approaching the end of their life as well.

---

### **Cons of the OM612 2.7L Engine**

1. **Aging Technology**

The OM612 is **over 20 years old**, and while it s robust, it lacks modern emissions and fuel efficiency improvements. It does not meet **EPA 2007 emissions standards**, meaning it may require **exhaust modifications** (e.g., a "no-tailpipe" setup) in some regions to avoid legal issues.

2. **Common Wear Items**

- **Fuel Injectors/Pump-Nozzle Units**: These wear out over time and can lead to **rough idle, misfires, or poor power delivery**. Replacing them is expensive ( $1,500 $3,000 for a full set).

- **Turbocharger**: The **mechanical turbo** is durable but can fail if the engine runs low on oil or overheats. Replacement turbos cost **$1,000 $2,500**.

- **Water Pump and Thermostat**: The **plastic water pump** is prone to failure, often leading to overheating. Replacement is **$300 $600**.

- **Head Gaskets**: While less common than in some other Mercedes diesels, **blown head gaskets** can occur if the engine overheats or is modified aggressively.

- **Transmission**: The **ZF 5HP19 or 5HP24 automatic transmissions** paired with the OM612 are known for **soft shifts and eventual failure**, often requiring a rebuild ( $3,000 $5,000).

3. **Emissions and Legal Issues**

- The OM612 **does not meet modern emissions standards**, which can cause problems in some states/countries. A **"no-tailpipe" setup** (removing the catalytic converter and muffler) may be required, but this can lead to **legal gray areas** and potential fines.

- In some regions, **diesel vehicles over 20 years old** are being phased out of registration due to emissions concerns.

4. **High Maintenance Costs Over Time**

While the engine itself is durable, **replacing wear items** (injectors, turbo, water pump, etc.) can add up. A well-maintained OM612 may cost **$1,000 $3,000/year** in maintenance, depending on usage.

5. **Rust and Corrosion**

Many older Sprinters (especially those used in cold climates) suffer from **rust in the frame, suspension, and undercarriage**. This can lead to **structural issues** that are costly to repair.

6. **Limited Modernization**

Unlike newer Mercedes diesels (e.g., OM642, OM651), the OM612 **cannot be easily upgraded** with modern fuel systems or turbochargers without significant modifications. Aftermarket upgrades (e.g., **turbo swaps, fuel system mods**) exist but require mechanical expertise.

7. **Crankshaft Bearings (Specific to Your Concern)**

If the **crankshaft bearings have failed**, this is a **major red flag**. Bearings typically last **200,000 miles** if the engine is well-maintained, but failure can indicate:

- **Chronic oil starvation** (due to leaks, poor oil flow, or incorrect oil viscosity).

- **Overheating** (which can soften bearings and cause premature failure).

- **Excessive load** (e.g., towing without proper cooling).

- **Neglect** (lack of oil changes or using the wrong oil).

**Replacing crankshaft bearings** is a **labor-intensive job** ( $1,500 $3,000 for parts and labor) and should only be done if the rest of the engine is in good condition. If the bearings failed due to neglect, the engine may have **hidden damage** (e.g., rod bearings, camshaft bearings, or timing components).

---

### **Conclusion**

The **Mercedes-Benz OM612 2.7L engine** is a **reliable, torque-rich workhorse** that excels in heavy-duty applications if properly maintained. Its **simplicity, fuel efficiency, and aftermarket support** make it a popular choice for conversions and commercial use. However, its **aging technology, high maintenance costs, and potential emissions issues** mean it is **not ideal for long-term use without significant investment**.

**If you are considering buying a Sprinter with this engine:**

- **Check the maintenance history** thoroughly. **Oil changes every 5,000 7,500 miles** (with the correct oil) are critical.

- **Inspect for signs of overheating** (warped head, cracked water pump, rust in the cooling system).

- **Test drive and listen for unusual noises** (knocking, rattling, or whining could indicate bearing or turbo issues).

- **Get a pre-purchase inspection** from a **Mercedes diesel specialist** who can check:

- **Fuel injectors/pump-nozzle units** (listen for ticking or rough idle).

- **Turbocharger** (check for oil leaks or excessive lag).

- **Transmission** (soft shifts or slipping indicate potential failure).

- **Crankshaft and rod bearings** (if the current owner admits to bearing failure, assume other components may be worn).

- **Budget for major wear items** (injectors, turbo, water pump, head gaskets) if buying used.

- **Consider emissions compliance** if you plan to keep the vehicle long-term, a "no-tailpipe" setup may be necessary.

---

### **Recommendation**

1. **If you need a reliable, low-cost workhorse for short-term use (e.g., 1 3 years):**

- The OM612 is a **solid choice**, especially if you find

Details:

For sale is an used OEM part original equipment manufacturer that came stock with your car, it not aftermarket. Fits: 02-06 SPRINTER 2500 3500 2.7l. Please be 100% sure this is the correct part for your vehicle. Unless stated otherwise It may be a little dusty from storage use.

part #: om61200 price

  • $400.00

specifications cranshafengin:

  • for models: 2500, 3500, Sprinter
  • for makes: Mercedes
  • for years: 2002-2006
  • mpn: Om61200
  • part type: Bearing Crankshaft
  • oe/oem part number: Sprinter 2.7l Crankshaft
  • items included: Bearing
  • country of origin: Germany

returns cranshafengin:

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

payments cranshafengin:

  • wallet: Paypal
  • cash
  • credit card: Discover
  • other

shipping cranshafengin:

  • carrier: USPS
  • class: Standard
  • cost: $135.00
  • transit: 4-9 Days
  • service: USPS Ground Advantage
  • type: Fixed

seller cranshafengin:

  • rating: 98.9%
  • # reviews: 3996
  • city: Rancho Cordova, California

general cranshafengin:

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

offer cranshafengin:

  • started: May 26, 2026
  • best offers: True
  • availability: In Stock
  • quantity: 1
  • options: Ship-to-home
  • sold: 0
for models: 2500, 3500, sprinter, for makes: mercedes, for years: 2002-2006, part type: bearing crankshaft, oe/oem part number: sprinter 2.7l crankshaft, items included: bearing, country of origin: germany,
category: auto parts > car truck parts accessories > engines engine parts > crankshafts, sku: 20557651577738632,
Mercedes OM61200 Is Similar To:
cranshafengin logo
1 offer $400.00 USD
  • Used. Offer #1 priced at $400.00 + $135.00 shipping estimate = $535.00* total. . Fits: 02-06 SPRINTER 2500 3500 2.7l.+$135.00 shipping

Copyright © cranshafengin.com