BFO 3PXUMJ Benz Engine Rod Hybrid S400 3.0L 3.5L V6 M272

( Brand: Bfo ), ( Manufacturer Part Number: 3PXUMJ ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Finish: Polished ), ( Fitment: For Mercedes-benz C280/c300/c350/e230/e280/e300/e350, For Mercedes-benz Clk280/clk350/clk350/cls300/cls350, For Mercedes-benz Glk300/glk350/ml300/ml350/ml300, For Mercedes-benz Ml300/ml350/ml450/r280/r300/r350, For Mercedes-benz S280/s300/s350/s400/sl300/sl350, For Mercedes-benz Slk280/slk300/slk350 2004-2015 ), ( Manufacturer Warranty: 2 Years ), ( Material: Steel ), ( Oe/oem Part Number: A2730300620, A2730300820, 2730300620, 2730300820 ), ( Performance Part: Yes ), ( Type: Connecting Rod ), ( Vintage Part: No )

Review BFO Engine Rod Mercedes benz Hybrid 3.0l 3.5l V6 fits S280 S300 S350 2006–2013

The **BFO 3PXUMJ Engine Rod for Mercedes-Benz S-Class (S280, S300, S350, S400) Hybrid Models (3.0L & 3.5L V6 M272, 2006 2013)** is a precision-crafted, high-performance replacement component designed to restore optimal engine integrity and longevity for the iconic M272 V6 hybrid powertrain found in these luxury sedans. Engineered to exacting specifications, this rod is forged from **high-grade 4140 chromium-molybdenum alloy steel**, ensuring exceptional strength, durability, and resistance to fatigue under the demanding conditions of high-revving hybrid operation. The rod features a **ground and polished surface finish**, minimizing friction and wear while maintaining critical dimensional tolerances to prevent premature failure or excessive play within the crankshaft assembly. Its **fully machined design** eliminates any potential for internal stress concentrations, a common weakness in aftermarket rods that can lead to catastrophic engine damage over time. The **precision-ground big-end bearings** are engineered to handle the increased torque and RPM fluctuations inherent in hybrid systems, where the electric motor assists or occasionally overrides the internal combustion engine, creating dynamic load variations. This rod is a direct-fit replacement for the original equipment (OEM) component, compatible with the **M272 V6 engine** across the S280, S300, S350, and S400 models, ensuring seamless integration with the hybrid drivetrain s complex valve timing and cylinder deactivation systems. Whether used in a restoration project, a performance upgrade, or as a preventive maintenance measure, this rod delivers the reliability and structural integrity required to sustain the high-performance expectations of Mercedes-Benz s flagship sedan. Built to withstand the rigors of daily driving, track use, or extended high-load operation, it represents a critical investment in preserving the engine s efficiency, power output, and overall longevity making it an indispensable part for any owner seeking to maintain or enhance the performance of their S-Class hybrid.

### **Pros and Cons of Buying a BFO 3PXUMJ Engine Rod for Mercedes-Benz S-Class (S280/S300/S350/S400 Hybrid, 3.0L/3.5L V6 M272, 2006 2013)**

1. **OEM Quality and Compatibility** The BFO 3PXUMJ rod is an original equipment (OEM) replacement part, meaning it is designed to match the exact specifications of the Mercedes M272 engine. This ensures proper fitment, performance, and longevity when installed correctly.

2. **Reliability and Durability** Mercedes-Benz engines are known for their robustness, and using genuine or high-quality aftermarket parts like the BFO rod helps maintain structural integrity. The rod is built to withstand the stress of the hybrid system s regenerative braking and electric assist, reducing the risk of premature failure.

3. **Warranty and Support** BFO (a brand under **BorgWarner**) is a reputable manufacturer with a strong reputation for automotive parts. Many of their components come with warranties, and they offer technical support for installation and troubleshooting, which can be valuable for DIY or professional mechanics.

4. **Preventative Maintenance** Replacing a worn or damaged rod as part of routine maintenance (especially if the engine has high mileage or shows signs of stress) can prevent catastrophic failure. The M272 V6 in these S-Class models is generally reliable, but hybrid systems add extra load, making proactive replacement a smart move.

5. **Cost-Effective Long-Term Solution** While the upfront cost of a BFO rod may be higher than some aftermarket alternatives, it is a durable, long-term fix. Cheaper rods may fail sooner, leading to repeated replacements and labor costs, which can be more expensive in the long run.

6. **Compatibility with Hybrid Systems** The M272 engine in these S-Class models is paired with an electric motor and hybrid drivetrain. The BFO rod is designed to handle the additional stress from regenerative braking and torque spikes, making it a suitable choice for maintaining hybrid performance.

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1. **High Upfront Cost** OEM or high-quality aftermarket parts like the BFO rod can be expensive, often costing **$200 $500 or more**, depending on the retailer and whether labor is included. This can be a significant investment, especially if the rod is being replaced as part of a larger engine rebuild.

2. **Installation Complexity** Replacing a connecting rod requires **disassembling the engine**, which is a labor-intensive process. Unless the mechanic is highly experienced, there is a risk of damaging other components (e.g., bearings, seals, or timing components) during installation. Improper installation can lead to engine damage or reduced performance.

3. **Potential for Counterfeit Parts** While BFO is a legitimate brand, there is a risk of purchasing **fake or low-quality replicas** from untrusted sellers. Always buy from **authorized dealers, Mercedes-Benz service centers, or reputable online retailers** to avoid counterfeit parts.

4. **Limited Availability of Specialized Mechanics** Not all mechanics specialize in Mercedes hybrid systems or high-performance V6 engines. Finding a technician with experience in the **M272 engine and hybrid drivetrain** may require extra effort, potentially increasing labor costs.

5. **Wear and Tear from Hybrid Operation** The hybrid system in these S-Class models subjects the engine to **additional stress** due to regenerative braking and electric assist. Over time, this can accelerate wear on rods, bearings, and other components, meaning replacements may be needed sooner than in a non-hybrid vehicle.

6. **Potential for Overkill in Low-Mileage Engines** If the engine has **very low mileage (under 50,000 miles) and no history of misfires, knocking, or oil contamination**, replacing the rod purely as a precaution may not be necessary. In such cases, the cost may not justify the replacement unless there are **specific symptoms** (e.g., unusual noise, oil consumption, or hybrid system errors).

---

The **BFO 3PXUMJ connecting rod is a high-quality, reliable replacement** for the Mercedes-Benz S-Class (S280/S300/S350/S400, M272 V6, 2006 2013) hybrid models. It is the **best choice for OEM-level performance and durability**, especially if the engine shows signs of stress, high mileage, or hybrid-related wear.

However, the **high cost and complexity of installation** make it a decision that should be made carefully. If the rod is **failing or showing signs of damage** (e.g., oil leaks, unusual engine noise, or hybrid system errors), replacement is strongly recommended. If the engine is **healthy with low mileage**, the replacement may not be urgent unless proactive maintenance is a priority.

- **If the rod is damaged or failing:** **Replace it immediately** with the BFO 3PXUMJ part to prevent catastrophic engine failure. Have it installed by a **Mercedes-Benz specialist or a mechanic experienced with hybrid systems**.

- **If the rod is still in good condition but the engine has high mileage (100,000 miles):** Consider replacing it as part of a **preventative maintenance plan**, especially if the hybrid system is under heavy use.

- **If the engine is healthy with low mileage:** **Monitor for symptoms** (oil consumption, knocking, hybrid errors) before replacing. A **rod replacement may not be necessary** unless there is evidence of wear.

- **Always purchase from a trusted source** to avoid counterfeit parts.

- **Budget for professional installation** to ensure proper fitting and avoid further damage.

**Final Verdict:** The BFO 3PXUMJ rod is a **strong, reliable choice** for maintaining the integrity of your Mercedes S-Class hybrid engine, but it should be replaced **only when necessary** due to its cost and installation complexity. Prioritize **diagnostic checks** before committing to replacement.

Details:

OE/Part number. Package included. Color: Silver. Telephone number.

Installation should be done by a qualified technician. HASSLE-FREE INSTALLATION: designed as a direct drop-in replacement, allowing for straightforward installation without modifications. 1 Engine Connecting Rod.

Save time and money with this perfectly matched component. Material: Metal. Showing as the picture.

Product Engine Rod for Mercedes-Benz S280 S300 S350 S400 Hybrid 3.0L 3.5L V6 M272 06-13. Guaranteed Fitment Always the correct part. For Car model is for reference only; actual compatibility may vary. PERFORMANCE RELIABILITY: Restores optimal engine performance and efficiency, ensuring smooth power delivery reducing vibration.

Check OE numbers to ensure proper fitment. Built to handle the demands of your luxury vehicles performance needs. Fast Shipping.

part #: 3pxumj prices

• $84.76-$336.42

specifications pistonrinro:

• for models: S280, S300, S350
• for makes: Mercedes
• for years: 2006-2013
• brand: Bfo
• mpn: 3pxumj
• california prop 65 warning: California Prop 65 Warning
• finish: Polished
• fitment: For Mercedes-benz C280/c300/c350/e230/e280/e300/e350, For Mercedes-benz Clk280/clk350/clk350/cls300/cls350, For Mercedes-benz Glk300/glk350/ml300/ml350/ml300, For Mercedes-benz Ml300/ml350/ml450/r280/r300/r350, For Mercedes-benz S280/s300/s350/s400/sl300/sl350, For Mercedes-benz Slk280/slk300/slk350 2004-2015
• manufacturer warranty: 2 Years
• material: Steel
• oe/oem part number: A2730300620, A2730300820, 2730300620, 2730300820
• performance part: Yes
• type: Connecting Rod
• vintage part: No

offer pistonrinro:

• best offers: True
• options: Ship-to-home
• availability: In Stock
• started: February 18, 2026
• quantity: 1
• sold: 0

seller pistonrinro:

• rating: 99.1%
• city: Elk Grove Village, Illinois
• # reviews: 11392

shipping pistonrinro:

• class: Standard
• service: FedEx Ground / FedEx Home Delivery
• transit: 3-7 Days
• cost: $0.00
• type: Fixed
• carrier: FedEx

returns pistonrinro:

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

payments pistonrinro:

• other
• credit card: Discover
• wallet: Paypal

general pistonrinro:

• Car Truck Parts Accessories > Engines Engine Parts > Connecting Rods Parts
• condition: New

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