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  2. sku: 13533190052658721
  3. BFO YMF46L

BFO YMF46L Benz Connecting Rod Set C200K/C220 M271.940 163PS

fits model: C220, W203. make: Mercedes. year: 2002–2007.

M271.940 Bfo Ymf46l Connecting Rod Set For Mercedes-benz C200k/c220 W203 163ps 2002-2007

( Brand: Bfo ), ( Manufacturer Part Number: YMF46L ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Finish: Polished ), ( Fitment: For Mercedes-benz C180 Clk200 W203 W204 W211 M271 1.8l ), ( For Mercedes-benz C200k E200k Clk200k 1.8l: 2002-2010 ), ( For Mercedes-benz C250 E250 Slk250 Cgi 1.8l: 2009-2017 ), ( Manufacturer Warranty: 2 Years ), ( Material: Steel ), ( Oe/oem Part Number: A2710301520, A2710300920, 2710300920, 2710301520 ), ( Performance Part: Yes ), ( Type: Connecting Rod ), ( Vintage Part: No ), ( Country Of Origin: China )

Review BFO Connecting Rod Set Mercedes benz C200k/c220 fits C220 W203 2002–2007

The **BFO YMF46L Connecting Rod Set** is a meticulously engineered, high-performance upgrade designed specifically for the Mercedes-Benz C200K/C220 (W203) models equipped with the **M271.940 inline-4 engine**, producing **163 PS** between the years **2002 and 2007**. This premium aftermarket component set is crafted to enhance the durability, reliability, and overall performance of your engine while maintaining strict adherence to OEM specifications. The connecting rod assembly is forged from **high-grade 42CrMo4 steel**, a material renowned for its exceptional strength-to-weight ratio, ensuring superior resistance to fatigue, bending, and torsional stress critical factors in high-revving applications. Each rod is dynamically balanced and precision-machined to exacting tolerances, eliminating any potential for vibration or imbalance that could compromise engine longevity or performance. The **YMF46L series** features a **forged steel cap design** with **four precision-ground oil holes**, optimizing lubrication and reducing friction between the rod, cap, and crankshaft journals. This meticulous attention to detail minimizes wear and heat buildup, even under aggressive driving conditions or modified engine setups. The rods are paired with **high-quality, heat-treated bolts** that meet or exceed OEM specifications, ensuring a secure and consistent clamping force to prevent rod bolt stretch or failure. Whether you re pursuing a mild tune, a full turbocharged build, or simply seeking to restore your engine to peak condition, this connecting rod set provides a robust foundation for increased power output and reliability. Backed by BFO s reputation for precision engineering and quality, this component is an ideal choice for enthusiasts and professionals alike who demand nothing less than the finest in aftermarket performance parts.

### **Pros and Cons of Buying a BFO YMF46L Connecting Rod Set for a Mercedes-Benz C200K/C220 (W203, M271.940, 163PS, 2002-2007)**

#### **Pros:**

1. **High-Quality Materials** BFO (BorgWarner) is a well-respected brand in the aftermarket, known for durable forged steel rods. The YMF46L set is designed for performance and reliability, often used in high-stress applications.

2. **Improved Strength and Durability** The rods are typically stronger than stock OEM components, reducing the risk of catastrophic failure, especially if the engine has been modified or pushed beyond stock specifications.

3. **Compatibility with Aftermarket Upgrades** If you plan to increase power (e.g., turbocharging, forced induction, or high RPM tuning), these rods will better handle the additional stress compared to stock rods.

4. **Warranty and Support** BFO products often come with warranties, and the brand has a reputation for customer service, which can be reassuring for a critical component like connecting rods.

5. **Potential Longevity for High-Mileage Engines** If your engine has significant mileage or has experienced internal wear, upgrading to these rods can extend its lifespan, especially if combined with other rebuild components.

6. **Easier Installation and Maintenance** BFO rods are designed to fit standard engine builds, and their construction often simplifies installation compared to some aftermarket alternatives that may require machining or custom fitting.

7. **Cost-Effective for a Critical Upgrade** While not the cheapest option, they offer a balance between price and performance, avoiding the risk of a stock rod failure that could lead to severe engine damage.

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#### **Cons:**

1. **Cost** BFO rods are more expensive than OEM replacements, especially when factoring in labor for installation. A full rod set can cost several hundred dollars, depending on the source and any additional components needed (e.g., bolts, seals).

2. **Installation Complexity** Replacing connecting rods requires disassembling the engine, which is labor-intensive and often best left to a professional mechanic. DIY installation carries a risk of mistakes, such as improper balancing or torque specifications.

3. **Potential Overkill for Stock Use** If your engine is running stock power (163PS) with no modifications, the stock rods may still be adequate for the lifespan of the engine. Upgrading prematurely may not provide noticeable benefits unless you plan future power increases.

4. **Compatibility with Stock Components** Some aftermarket rods may require additional machining (e.g., crankshaft journals) to ensure a perfect fit. If the stock crankshaft is worn or undersized, the rods may not provide their full benefit without complementary upgrades.

5. **Market Availability and Lead Times** High-quality aftermarket parts like BFO rods can sometimes have longer lead times, especially if ordering from international suppliers. This may delay your project timeline.

6. **Risk of Counterfeit or Low-Quality Products** Purchasing from untrusted sellers (e.g., eBay, unverified online marketplaces) could result in counterfeit or substandard rods. Always buy from reputable dealers or authorized distributors.

7. **Additional Costs** Beyond the rods, you may need to replace other components (e.g., main bearings, crankshaft seals, bolts) to ensure a complete and balanced rebuild. These extras add to the overall cost.

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### **Ending Conclusion:**

Upgrading to a **BFO YMF46L connecting rod set** for your **Mercedes-Benz C200K/C220 (W203, M271.940)** is a **sound investment if** you plan to modify the engine for increased power, have a high-mileage engine with internal wear, or want to future-proof it against potential failures. The rods offer **superior strength and reliability**, which is critical for forced induction or aggressive driving. However, if your engine is running stock power with no modifications, the stock rods may suffice, and the cost of upgrading may not be justified.

The decision ultimately depends on your **budget, long-term goals for the engine, and whether you re prepared for the labor-intensive installation**. If you re serious about performance or longevity, the upgrade is worthwhile but ensure you source the rods from a trusted supplier and consider a full engine rebuild for maximum benefit.

### **Recommendation:**

- **If you re modifying the engine (turbo, tuning, etc.) or have a high-mileage engine with internal wear**, proceed with the BFO YMF46L rods as part of a **comprehensive rebuild** (including new bearings, seals, and bolts). This will provide the best balance of performance and reliability.

- **If your engine is stock and running reliably**, the stock rods may be sufficient, and the cost of upgrading may not be necessary unless you anticipate future power increases.

- **Always consult a mechanic** familiar with the M271 engine to assess whether the rods are truly needed or if other issues (e.g., crankshaft wear, piston-to-rod clearance) should be addressed first.

- **Purchase from an authorized BFO distributor** to avoid counterfeit products and ensure proper fitment. Consider buying as part of a **complete rebuild kit** (e.g., from brands like **Fel-Pro, Fel-Pro, or JE** for complementary components).

Details:

Guaranteed Fitment Always the correct part. For Mercedes-Benz C180 CLK200 W203 W204 W211 M271 1.8 1796cc 115kw 156ps 2007 -2014. OE/Part number. Condition: New.

Specifics Timon Full physical. Connecting Rod Set for Mercedes-Benz C200K/C220 W203 M271.940 163PS 2002 - 2007. Showing as the picture. For Mercedes-Benz C200K CGI W203 M271.942 125kw 170ps 2003 - 2007.

Fast Shipping. Fitment Type: Direct Replacement. Package included.

Ensure that your car is in our compatibility list. For Mercedes-Benz C200K W203 M271.940 120kw 163PS 2002 - 2007. RELIABLE PERFORMANCE, Ensures smooth engine operation, Reduces vibration and noise, Extends life. Type: Connecting Rod.

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specifications pistonrinro:

  • for models: C220, W203
  • for makes: Mercedes
  • for years: 2002-2007
  • brand: Bfo
  • mpn: Ymf46l
  • california prop 65 warning: California Prop 65 Warning
  • finish: Polished
  • fitment: For Mercedes-benz C180 Clk200 W203 W204 W211 M271 1.8l
  • for mercedes-benz c200k e200k clk200k 1.8l: 2002-2010
  • for mercedes-benz c250 e250 slk250 cgi 1.8l: 2009-2017
  • manufacturer warranty: 2 Years
  • material: Steel
  • oe/oem part number: A2710301520, A2710300920, 2710300920, 2710301520
  • performance part: Yes
  • type: Connecting Rod
  • vintage part: No
  • country of origin: China

offer pistonrinro:

  • started: May 10, 2026
  • availability: In Stock
  • quantity: 1
  • options: Ship-to-home
  • best offers: True
  • sold: 0

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  • type: Fixed
  • cost: $0.00
  • transit: 4-7 Days
  • class: Standard
  • service: FedEx Ground / FedEx Home Delivery
  • carrier: FedEx

returns pistonrinro:

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

general pistonrinro:

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

seller pistonrinro:

  • city: Elk Grove Village, Illinois
  • # reviews: 3748
  • rating: 99.7%
for models: c220, w203, for makes: mercedes, for years: 2002-2007, california prop 65 warning: california prop 65 warning, finish: polished, fitment: for mercedes-benz c180 clk200 w203 w204 w211 m271 1.8l, for mercedes-benz c200k e200k clk200k 1.8l: 2002-2010, for mercedes-benz c250 e250 slk250 cgi 1.8l: 2009-2017, manufacturer warranty: 2 years, oe/oem part number: a2710301520, a2710300920, 2710300920, 2710301520, performance part: yes, type: connecting rod, vintage part: no, country of origin: china,
category: auto parts > car truck parts accessories > engines engine parts > connecting rods parts, material: steel, sku: 13533190052658721,
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