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  3. BFO N4PS7A

BFO N4PS7A Benz Connecting Rod Set C200K/C220 M271.940 163PS

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

M271.940 Bfo N4ps7a Connecting Rod Set For Mercedes-benz C200k/c220 W203 163ps 2002-2007

( Brand: Bfo ), ( Manufacturer Part Number: N4PS7A ), ( 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 )

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

The **BFO N4PS7A Connecting Rod Set** is a meticulously engineered, high-performance replacement solution specifically designed for the Mercedes-Benz C200K/C220 (W203) models equipped with the **M271.940 inline-4 engine** producing **163 PS**, spanning the production years from **2002 to 2007**. This premium aftermarket component set is crafted to restore or enhance the structural integrity and reliability of the engine s critical internal components, ensuring optimal performance, longevity, and peace of mind for discerning owners seeking a seamless upgrade or restoration.

Engineered from **high-grade forged steel**, the N4PS7A connecting rod set is built to withstand the intense stresses of modern high-performance driving, including aggressive acceleration, high RPM operation, and prolonged heavy loads. Each rod is precision-machined to exacting tolerances, adhering to OEM specifications while incorporating subtle refinements that improve strength, balance, and durability. The rods feature **optimized wall thickness and heat-treatment processes**, which not only resist deformation under extreme conditions but also minimize vibration and wear, contributing to a smoother, more refined power delivery. The **split-pin design** ensures secure attachment to the crankshaft, while the **oil hole alignment** is meticulously calibrated to maintain proper lubrication, reducing friction and preventing premature failure.

Beyond its robust construction, the BFO N4PS7A set is designed with **ease of installation** in mind, featuring **pre-machined surfaces** and **compatible bolt patterns** that align seamlessly with the original engine components. The rods are supplied with **new, high-quality split pins** and **replacement washers**, all of which are carefully selected to match the original equipment specifications, ensuring a perfect fit without the need for additional modifications. This set is particularly beneficial for owners who have experienced **rod knock, bending, or fatigue**, as well as those looking to **preemptively reinforce their engine** before undertaking high-mileage projects or performance modifications.

For the Mercedes-Benz C200K/C220 owner, the N4PS7A connecting rod set represents a **cost-effective yet high-stakes upgrade** that can significantly extend the lifespan of the M271.940 engine while maintaining its factory-derived efficiency and responsiveness. Whether addressing a specific failure or proactively enhancing reliability, this component set exemplifies BFO s commitment to **precision engineering and performance-driven solutions**, making it an indispensable choice for those who demand nothing less than the highest standards in automotive restoration and modification.

### **Pros and Cons of Buying a BFO N4PS7A Connecting Rod Set for a Mercedes-Benz C200K/C220 (W203, M271.940, 163 PS, 2002 2007)**

#### **Pros:**

1. **Improved Engine Strength** The N4PS7A rod set is designed to enhance durability, particularly for high-performance applications. The forged steel construction provides better resistance to bending and fatigue compared to stock rods, which can be a concern in aggressive driving or modified engines.

2. **Better Compression and Power Output** Forged rods offer improved stiffness, which can help maintain better compression and reduce piston slap, especially if the engine has been modified (e.g., upgraded pistons, increased compression ratio, or forced induction). This can lead to more consistent power delivery.

3. **Compatibility with Aftermarket Mods** If you plan to add turbocharging, nitrous, or other performance upgrades, these rods are a safer choice than stock rods, which may not handle the increased stress.

4. **Long-Term Reliability** Forged rods are less prone to catastrophic failure under extreme loads, making them a wise investment if you push the engine beyond stock limits.

5. **Widely Available and Trusted Brand** BFO (BorgWarner Forged) is a reputable manufacturer with a strong reputation for high-quality aftermarket engine components. Their rods are commonly used in tuning circles for the M271 engine.

6. **Easier Installation** Unlike some custom rod sets, the N4PS7A is designed to fit the M271 block without major modifications, making installation more straightforward than a full rebuild.

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#### **Cons:**

1. **Cost** Forged rods are significantly more expensive than stock or even some aftermarket rod sets. Depending on the source, a complete set (4 rods bolts) can range from **$300 $600 **, which is a substantial investment for a stock or lightly modified engine.

2. **Overkill for Stock or Mild Mods** If you re not planning major power increases (e.g., turbo, nitrous, or aggressive camshafts), stock rods may last the life of the engine without issue. Forged rods are best suited for high-stress applications rather than casual driving.

3. **Installation Complexity** While not as difficult as a full engine rebuild, replacing connecting rods requires disassembly of the engine, proper balancing, and often the use of a rod jig. If you re not experienced with engine work, labor costs will add to the expense.

4. **Potential for Over-Tightening** Forged rods can be more sensitive to torque specifications than stock rods. Over-tightening the rod bolts can lead to stress risers or even cracks, so precise installation is critical.

5. **No Guarantee Against Other Failures** Even with upgraded rods, other components (e.g., crankshaft, bearings, pistons) may still fail if not properly maintained or upgraded. A rod set alone won t fix issues like worn bearings or a damaged crank.

6. **Limited Stock Availability** While BFO rods are reliable, finding them in stock may require ordering from specialty suppliers, which could introduce delays.

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### **Conclusion and Recommendation**

The **BFO N4PS7A connecting rod set is a strong choice for Mercedes-Benz C200K/C220 (W203, M271.940) owners** who:

- Plan to **turbocharge, nitrous, or otherwise significantly modify** the engine.

- Have **already experienced rod or crankshaft issues** and want a long-term solution.

- Drive **aggressively or in high-performance applications** where stock rods may be insufficient.

**However, if you:**

- Keep the engine **stock or with minor mods** (e.g., cold air intake, exhaust, or mild camshaft).

- Are **not comfortable with engine disassembly** or lack the tools for proper installation.

- Want to **minimize cost** without sacrificing reliability (since stock rods can last well over 200,000 miles in a well-maintained engine).

...then **stock rods or a high-quality aftermarket set (such as those from KW or JE)** may be a more practical and cost-effective solution.

#### **Final Recommendation:**

- **For stock or lightly modified engines:** Stick with **stock rods** (if in good condition) or consider a **high-quality aftermarket set** (e.g., KW or JE rods) if you notice any signs of wear (e.g., oil leaks, tapping noises).

- **For turbocharged, nitrous, or high-performance builds:** The **BFO N4PS7A rods are an excellent upgrade**, provided you also address other critical components (crankshaft, bearings, pistons) to ensure balanced stress distribution.

- **If in doubt, consult a Mercedes specialist** some tuners recommend rod upgrades only after confirming the crankshaft and bearings are in good condition.

Would you like guidance on installation steps or alternative rod sets?

Details:

Fast Shipping. OE/Part number. Specifics Timon Full physical. For Mercedes-Benz C200K CGI W203 M271.942 125kw 170ps 2003 - 2007.

Condition: New. Type: Connecting Rod. Fitment Type: Direct Replacement. Telephone number.

Ensure that your car is in our compatibility list. For Mercedes-Benz C180 CLK200 W203 W204 W211 M271 1.8 1796cc 115kw 156ps 2007 -2014. Connecting Rod Set for Mercedes-Benz C200K/C220 W203 M271.940 163PS 2002 - 2007.

Package included. RELIABLE PERFORMANCE, Ensures smooth engine operation, Reduces vibration and noise, Extends life. Guaranteed Fitment Always the correct part. Showing as the picture.

For Mercedes-Benz C200K W203 M271.940 120kw 163PS 2002 - 2007.

specifications pistonrinro:

  • for models: C220, W203
  • for makes: Mercedes
  • for years: 2002-2007
  • brand: Bfo
  • mpn: N4ps7a
  • 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

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general pistonrinro:

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

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  • city: Elk Grove Village, Illinois
  • rating: 99.6%
  • # reviews: 2596

offer pistonrinro:

  • quantity: 1
  • started: March 11, 2026
  • availability: In Stock
  • options: Ship-to-home
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  • sold: 0

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  • carrier: FedEx
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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,
category: auto parts > car truck parts accessories > engines engine parts > connecting rods parts, material: steel, sku: 12739019275437721,
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