1. Pistons, Rings, Rods & Parts Engines Components For Sale
  2. sku: 12901263223273853
  3. SUBARU 12113-AA151

SUBARU 12113-AA151 Connecting Rod Gv Fore

fits model: Wrx, Impreza. make: Bush, Subaru.

12113-aa151 Subaru Bush Connecting Rod For Impreza Gc Gf Gd Gg Gr Gv Wrx Va Fore

( Brand: Subaru ), ( Manufacturer Part Number: 12113-AA151 ), ( Part Type: Rod ), ( Oe/oem Part Number: 12113-aa151 X1 ), ( Country Of Origin: Japan )

Review SUBARU Bush Connecting Rod Gc Gf Gd Gr Gv Va Fore fits IMPREZA WRX

The **Subaru 12113-AA151 connecting rod** is a high-performance, precision-engineered component designed exclusively for the iconic **Subaru Impreza WRX STI (GC, GF, GD, GR, GV, and WRX Fore models)**, ensuring optimal power transfer, durability, and reliability under extreme driving conditions. Crafted from **forged 4140 chromium-molybdenum steel**, this connecting rod is heat-treated to achieve an ideal balance of strength and flexibility, allowing it to withstand the immense forces generated by high-revving, turbocharged, or naturally aspirated engines without compromising structural integrity. The **fully machined surfaces** feature a **polished rod end** and **ground small end**, minimizing friction and wear while maintaining precise alignment with the piston and crankshaft, which is critical for maintaining compression efficiency and reducing the risk of catastrophic failure under heavy loads. This rod is engineered to meet or exceed **OEM specifications**, including critical dimensions such as **length, width, and small-end bore**, ensuring a perfect fit for stock and modified engines alike, whether paired with stock pistons or aftermarket upgrades. Its **smooth, honed oil passages** facilitate optimal lubrication, reducing heat buildup and extending the lifespan of both the rod itself and the engine components it connects. Whether installed in a **stock 2.5L EJ25 or a heavily modified 2.5L turbocharged engine**, this connecting rod delivers the robustness needed for track use, drift sessions, or high-mileage reliability. Built to withstand the demands of **high-RPM applications, forced induction, or aggressive driving styles**, the **12113-AA151** is a must-have upgrade for enthusiasts seeking to maximize performance while maintaining the structural integrity of their Subaru s powerplant.

### **Pros and Cons of Buying a Subaru 12113-AA151 Connecting Rod for Impreza (GC, GF, GD, GR, GV, WRX, Fore)**

#### **Pros:**

1. **OEM Quality and Fitment** The **12113-AA151** is an original Subaru part, meaning it is designed specifically for the **EJ25/EJ22/EJ20 engine family** found in the Impreza (GC, GF, GD, GR, GV, WRX, and Fore models). It ensures proper fitment without modifications, reducing the risk of installation issues.

2. **Durability and Reliability** Subaru s aftermarket and OEM connecting rods are built to withstand high stress, making them a dependable choice for both stock and lightly modified engines. They are forged from high-quality steel, which helps prevent catastrophic failure under normal driving conditions.

3. **Warranty Coverage** Purchasing from a reputable dealer or authorized Subaru parts supplier may include a warranty, providing peace of mind against defects. Some aftermarket suppliers also offer warranties, though terms vary.

4. **Compatibility with Stock and Mildly Modified Engines** This rod is suitable for **stock engines, turbocharged (WRX), and naturally aspirated (GC, GF, GD, GR, GV) setups** as long as the engine is not heavily modified (e.g., extreme forced induction, nitrous, or aggressive tuning). It is not recommended for extreme builds without reinforcement.

5. **Ease of Installation** Since it is an OEM or direct replacement part, it should fit standard engine bores without requiring machining or special tools. This makes it a straightforward upgrade for DIY mechanics.

6. **Cost-Effective for Basic Repairs** Compared to aftermarket rods from premium brands (e.g., JE, Scat, or Manley), the **12113-AA151** is often more affordable while still maintaining reliability for stock or lightly modified applications.

7. **Availability** This part is widely available through **Subaru dealerships, online marketplaces (eBay, RockAuto, Amazon), and specialty auto parts stores**, making it easy to source.

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#### **Cons:**

1. **Limited Use in High-Performance Applications** While suitable for stock and mildly modified engines, this rod is **not recommended for extreme builds** (e.g., 1,000 HP, aggressive turbo setups, or high-revving forced induction). In such cases, **aftermarket rods (e.g., JE, Scat, or Manley) with larger diameters or reinforced designs** are necessary to handle increased stress.

2. **Potential for Counterfeit Parts** Purchasing from untrusted sellers (especially online) increases the risk of receiving **fake or low-quality rods**, which could lead to engine failure. Always buy from **verified suppliers** with return policies and authenticity guarantees.

3. **No Upgrades in Strength or Weight** Unlike aftermarket rods, the **12113-AA151 does not offer weight reduction or increased strength** beyond the stock specification. For performance gains, aftermarket options may be preferable.

4. **May Require Additional Maintenance** If the engine has been previously damaged (e.g., bent rods, cracked caps, or worn bearings), simply replacing the rod may not fully resolve the issue. A **full engine rebuild** may be necessary, which could increase costs.

5. **Limited Customization** Unlike aftermarket rods, this part does not come in different lengths, diameters, or materials (e.g., titanium or billet steel), restricting options for engine builders looking to optimize performance.

6. **Potential for Stock-Specific Weaknesses** Some older Subaru engines (particularly pre-2000 models) had **marginal rod strength** in high-stress conditions. While the **12113-AA151 is an improvement over some OEM rods**, it may still be insufficient for **aggressive tuning without supporting modifications** (e.g., upgraded crankshaft, bearings, or oil system).

7. **Installation Knowledge Required** While straightforward, improper installation (e.g., incorrect torque specs, misaligned caps, or damaged threads) can lead to **catastrophic failure**. Mechanics unfamiliar with Subaru engines may need guidance.

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### **Conclusion**

The **Subaru 12113-AA151 connecting rod** is a **reliable, cost-effective choice** for **stock Impreza engines (GC, GF, GD, GR, GV, WRX, Fore) and mildly modified setups**. It provides **OEM-level quality, ease of installation, and compatibility** without requiring major engine modifications. However, it is **not suitable for extreme performance builds** (e.g., high-HP turbocharged applications) where aftermarket rods are necessary.

For **stock or lightly tuned engines**, this rod is a **safe and practical replacement**. For **aggressive modifications**, consider **aftermarket rods with reinforced designs** to prevent failure.

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### **Recommendation**

- **Buy from a trusted source** (Subaru dealership, reputable online retailer, or a mechanic you trust) to avoid counterfeit parts.

- **Verify engine condition** If the engine has pre-existing damage (e.g., bent rods, cracked caps), a **full rebuild** may be needed alongside rod replacement.

- **For stock or mild builds (e.g., WRX with stock turbo):** The **12113-AA151 is an excellent choice**.

- **For high-performance builds (e.g., 800 HP, aggressive turbo, nitrous):** **Upgrade to aftermarket rods (JE, Scat, Manley) with larger diameters and reinforced designs**.

- **Ensure proper installation** Follow **Subaru s torque specifications** and consider consulting a **Subaru specialist** if unsure.

If budget and performance needs align with stock or mild modifications, the **12113-AA151 is a solid, no-frills solution**. For anything beyond, **aftermarket options should be prioritized**.

Details:

Video Games / Consoles: 9504. HS Code examples: Car Parts: 8708.

part #: 12113aa151 prices

  • $7.77-$31.00

specifications pistonrinro:

  • for models: Wrx, Impreza
  • for makes: Bush, Subaru
  • brand: Subaru
  • mpn: 12113-aa151
  • part type: Rod
  • oe/oem part number: 12113-aa151 X1
  • country of origin: Japan

returns pistonrinro:

  • policy: Returns Accepted
  • paid by: Seller
  • time: 60 Days

offer pistonrinro:

  • availability: In Stock
  • quantity: 1
  • options: Ship-to-home
  • started: March 25, 2026
  • sold: 0

general pistonrinro:

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

payments pistonrinro:

  • other
  • wallet: Apple-pay
  • credit card: Mastercard

shipping pistonrinro:

  • type: Fixed
  • transit: 27-31 Days
  • service: SpeedPAK Economy, SpeedPAK Expedited
  • cost: $16.99
  • class: Economy From Outside, Expedited From Outside

seller pistonrinro:

  • rating: 99.3%
  • city: Aichi
  • # reviews: 804
for models: wrx, impreza, for makes: bush, subaru, part type: rod, oe/oem part number: 12113-aa151 x1, country of origin: japan,
category: auto parts > car truck parts accessories > engines engine parts > connecting rods parts, sku: 12901263223273853,
Subaru 12113-AA151 Is Similar To:
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2 offers $7.77–$31.00 USD
  • New. Offer #1 priced at $31.00 + $23.75 shipping estimate = $54.75* total. +$23.75 shipping
  • Neu. Offer #2 priced at $7.77 + $34.81 shipping estimate = $42.58* total. Manufacturer: Subaru Model: 12113AA151.+$34.81 shipping

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