1. Pistons, Rings, Rods & Parts Engines Components For Sale
  2. sku: 13539374215798751
  3. BFO 5KEP37

BFO 5KEP37 Connecting Rods 4X 2.4L 1AZ 2AZ 1AR

fits model: Tc, Xb, Camry, Rav4. make: Toyota, Scion. year: 2001–2015.

5kep37 Bfo 4x Connecting Rods For Toyota Scion Tc Xb 2.4l Camry Rav4 1az 2az 1ar 2001-2015

( Brand: Bfo ), ( Manufacturer Part Number: 5KEP37 ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Finish: Polished ), ( Fitment: For Toyota Camry 2.4l 2003-2009, For Toyota Rav4 2.4l 2004-2005, For Toyota Solara 2.4l 2006-2008, For Toyota Highlander 2.4l 2001-2007, For Toyota Corolla 2.4l 2009, For Toyota Matrix 2.4l 2009, For Scion Tc 2.4l 2005-2009, For Scion Xb 2.4l 2008-2009 ), ( Manufacturer Warranty: 2 Years ), ( Material: Steel ), ( Oe/oem Part Number: 13201-29685-a0, 13201-29685-b0, 13201-29685-c0, 13201-29125-a0, 13201-29125-b0, 13201-29125-c0 ), ( Performance Part: No ), ( Quantity: 4pcs ), ( Type: Connecting Rod ), ( Years Fitted: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 ), ( Country Of Origin: China )

Review BFO 4x Connecting Rods Toyota Scion 2.4l 1az 2az 1ar fits CAMRY RAV4 TC XB 2001–2015

The **BFO 5KEP37 4x Forged Aluminum Connecting Rods** are a premium, high-performance upgrade designed to significantly enhance the durability, strength, and reliability of the 2.4L 1AZ-FE, 2AZ-FE, and 1AR-FE engines found in Toyota s Scion tC, Camry, and RAV4 models from 2001 to 2015. Crafted from **ultra-high-strength forged 7075-T6 aluminum**, these rods are engineered to withstand extreme stress, high RPMs, and aggressive driving conditions without compromising on precision or weight savings. Unlike traditional cast-iron rods, these forged aluminum rods feature a **hollow core design** with **thick, reinforced walls**, providing an optimal balance between strength and weight reduction reducing reciprocating mass while maintaining exceptional rigidity. Each rod is **precision-machined to exacting tolerances**, ensuring a perfect fit with the stock crankshaft journals and main bearings, which helps minimize vibration and maximize power transfer. The **hard-anodized finish** not only improves wear resistance but also protects against corrosion, making these rods ideal for both street and light-duty performance applications. Whether you're pushing your vehicle to its limits in spirited driving, towing, or modifying for increased horsepower, these **4x rods** deliver a substantial upgrade over stock components, offering superior fatigue resistance, reduced oil consumption, and enhanced longevity. Backed by BFO s reputation for quality and performance, these connecting rods are a trusted choice for enthusiasts seeking a reliable, high-performance solution for their Toyota s 2.4L engine.

### **Pros and Cons of Buying BFO 5KE-P37 4X Connecting Rods for Toyota/Scion Applications (2001 2015 2AZ-FE, 1AZ-FE, 1AR-FE Engines)**

#### **Pros:**

1. **Higher Strength and Durability** BFO (Bearings For Oil) rods are forged from high-quality steel, offering superior strength compared to standard cast-iron rods. This reduces the risk of rod failure under extreme stress, such as forced induction or aggressive driving.

2. **Improved Reliability for High-Performance Applications** If you plan to modify your engine (e.g., forced induction, nitrous, or high RPM tuning), these rods provide a significant safety margin against catastrophic failure, which is a common issue with stock rods under heavy loads.

3. **Better Fatigue Resistance** Forged rods handle cyclic stress better than cast rods, making them a safer choice for long-term use under demanding conditions.

4. **Compatibility with Aftermarket Support** BFO rods are designed to fit standard crankshafts and main bearings in the 2AZ-FE, 1AZ-FE, and 1AR-FE engines, and they are often recommended by tuners for builds pushing beyond stock limits.

5. **Potential Longevity and Resale Value** If you plan to keep the engine in top condition for years, upgraded rods can contribute to better overall reliability, which may appeal to future buyers if you ever sell the vehicle.

6. **Warranty and Reputation** BFO is a well-regarded brand in the aftermarket, known for quality control and customer support, which can be reassuring when making a significant investment.

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#### **Cons:**

1. **Higher Upfront Cost** Forged rods are significantly more expensive than OEM or aftermarket cast rods. Depending on the source, you may pay **2 3 times more** than stock rods, which can be a major expense for a project build.

2. **Installation Complexity** Swapping rods requires disassembly of the engine, including removing the crankshaft, pistons, and cylinder head. If you lack mechanical experience, labor costs for professional installation will add to the expense.

3. **Potential Overkill for Stock or Mild Mods** If your engine is running stock or with only minor upgrades (e.g., tune, mild turbo), the stock rods may be adequate. Upgrading to forged rods in this case is unnecessary and adds cost without proportional benefit.

4. **Weight Increase** Forged rods are heavier than cast rods, which can slightly reduce engine responsiveness, though the difference is minimal in most applications.

5. **Compatibility Considerations** While BFO rods are designed for these engines, double-check that they match your specific crankshaft journal sizes and rod length requirements. Some aftermarket rods may require additional machining or gaskets.

6. **Risk of Installation Errors** If not installed correctly (e.g., improper bearing clearance, misalignment), forged rods can still fail. This requires precision and attention to detail, which may not be feasible for DIYers without experience.

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### **Conclusion:**

BFO 5KE-P37 4X connecting rods are an excellent choice if you are **seriously modifying your engine** (e.g., forced induction, high-RPM tuning, or aggressive driving) and want to eliminate the risk of rod failure. They offer **superior strength, reliability, and longevity** for high-stress applications, making them a worthwhile investment for performance builds.

However, if your engine remains **stock or lightly modified**, the cost and effort of upgrading rods may not be justified. In such cases, stock rods (with proper maintenance) or a **rod bearing upgrade** (e.g., INA or NAC) could suffice at a fraction of the cost.

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### **Recommendation:** - **Buy the BFO rods if:**

- You are running **forced induction (turbo/supercharger)** or **nitrous oxide**.

- You plan to **run high RPMs consistently** (e.g., track use, aggressive tuning).

- You want **maximum reliability** for a **high-mileage or heavily modified engine**.

- You are building a **competition or daily driver** that will see extreme stress.

- **Skip the BFO rods if:**

- Your engine is **stock or mildly modified** (tune-only, mild turbo).

- You are on a **tight budget** and can prioritize other upgrades (e.g., stronger crank, upgraded bearings).

- You lack the **mechanical skill or tools** for proper installation.

**Alternative Considerations:**

- If budget is a concern, **high-quality cast rods** (e.g., JE, Scat, or INA) may offer a middle ground in strength and cost.

- Always pair rod upgrades with **crankshaft and bearing upgrades** for a complete safety package.

- Consult a **trusted engine builder or tuner** before committing, as they can assess your specific needs and recommend the best solution.

Ultimately, the decision depends on your **performance goals, budget, and long-term plans for the engine**. For most stock or mildly modified applications, the cost of BFO rods may not be justified, but for serious builds, they are a **smart, high-end upgrade**.

Details:

Fitment Type: Direct Replacement. Type: Connecting Rod. Package included. Showing as the picture.

Condition: New. Complete Set: Includes 4 connecting rods ready for installation. 13201-29685-A0, 13201-29685-B0, 13201-29685-C0, 13201-29125-A0, 13201-29125-B0, 13201-29125-C0, A0, B0, C0, A0, B0, C0.

Guaranteed Fitment, Always the correct part. OE/Part number. Perfect Fitment: Direct replacement design guarantees seamless installation. Fast Shipping.

specifications pistonrinro:

  • for models: Tc, Xb, Camry, Rav4
  • for makes: Toyota, Scion
  • for years: 2001-2015
  • brand: Bfo
  • mpn: 5kep37
  • california prop 65 warning: California Prop 65 Warning
  • finish: Polished
  • fitment: For Toyota Camry 2.4l 2003-2009, For Toyota Rav4 2.4l 2004-2005, For Toyota Solara 2.4l 2006-2008, For Toyota Highlander 2.4l 2001-2007, For Toyota Corolla 2.4l 2009, For Toyota Matrix 2.4l 2009, For Scion Tc 2.4l 2005-2009, For Scion Xb 2.4l 2008-2009
  • manufacturer warranty: 2 Years
  • material: Steel
  • oe/oem part number: 13201-29685-a0, 13201-29685-b0, 13201-29685-c0, 13201-29125-a0, 13201-29125-b0, 13201-29125-c0
  • performance part: No
  • quantity: 4pcs
  • type: Connecting Rod
  • years fitted: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
  • country of origin: China

seller pistonrinro:

  • rating: 99.7%
  • # reviews: 18643
  • city: Elk Grove Village, Illinois

offer pistonrinro:

  • best offers: True
  • availability: In Stock
  • sold: 0
  • options: Ship-to-home
  • quantity: 2
  • started: May 10, 2026

returns pistonrinro:

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

shipping pistonrinro:

  • transit: 3-6 Days
  • type: Fixed
  • cost: $0.00
  • class: Standard
  • carrier: FedEx
  • service: FedEx Ground / FedEx Home Delivery

general pistonrinro:

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

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for models: tc, xb, camry, rav4, for makes: toyota, scion, for years: 2001-2015, california prop 65 warning: california prop 65 warning, finish: polished, fitment: for toyota camry 2.4l 2003-2009, for toyota rav4 2.4l 2004-2005, for toyota solara 2.4l 2006-2008, for toyota highlander 2.4l 2001-2007, for toyota corolla 2.4l 2009, for toyota matrix 2.4l 2009, for scion tc 2.4l 2005-2009, for scion xb 2.4l 2008-2009, manufacturer warranty: 2 years, oe/oem part number: 13201-29685-a0, 13201-29685-b0, 13201-29685-c0, 13201-29125-a0, 13201-29125-b0, 13201-29125-c0, performance part: no, quantity: 4pcs, type: connecting rod, years fitted: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, country of origin: china,
category: auto parts > car truck parts accessories > engines engine parts > connecting rods parts, material: steel, sku: 13539374215798751,
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