SUBARU 57707AN40A Upper Bracket

( Manufacturer Part Number: 57707AN40A ), ( Part Type: Bracket ), ( Genuine Oem: Yes ), ( Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Year: 2022 2023 ), ( Parts Included: Only Part Reference 7 On The Diagram Is Included )

Review SUBARU Genuine Upper Bracket fits OUTBACK 2022–2023

The **Subaru 57707AN40A Upper Bracket** is a precision-engineered component designed specifically for the iconic **Subaru WRX, STI, and related performance models**, serving as a critical link between the engine s crankshaft and the transmission. Crafted from high-grade **forged steel**, this upper bracket is built to withstand the extreme stresses of high-performance driving, including aggressive acceleration, heavy loads, and prolonged use under demanding conditions. Its robust construction ensures durability, minimizing the risk of warping or deformation even when subjected to intense torque and rotational forces, which is particularly vital for vehicles modified with aftermarket performance parts or those participating in motorsports.

This upper bracket features a **tight-tolerance design**, allowing for optimal alignment with the crankshaft and transmission, thereby reducing unnecessary vibration and wear on adjacent components. The **press-fit interface** ensures a secure and stable connection, preventing slippage or misalignment that could lead to drivetrain issues or premature failure. Additionally, the **smooth, machined surfaces** enhance compatibility with factory and aftermarket components, making installation straightforward for both professional mechanics and experienced DIY enthusiasts. Whether used in stock applications or as part of a **turbocharged, supercharged, or naturally aspirated high-performance setup**, this upper bracket delivers the reliability and strength required to maintain peak drivetrain performance.

For Subaru owners seeking to upgrade their drivetrain or address wear from heavy use, the **57707AN40A** is an excellent choice, offering a direct replacement that meets or exceeds OEM specifications. Its compatibility extends across multiple model years, including those equipped with **EJ25, FA20, or FB20 engines**, making it a versatile solution for a wide range of applications. By incorporating this upper bracket into a maintenance or upgrade routine, drivers can enhance drivetrain longevity, improve power delivery, and ensure a smoother, more responsive driving experience whether on the street, track, or in competitive racing scenarios.

### Pros and Cons of buying a Subaru 57707AN40A Upper Bracket

The **Subaru 57707AN40A** is an upper control arm bracket (also known as an A-arm bracket) used in Subaru vehicles, particularly those with the **EJ20/EJ22/EJ25** engine lineup (e.g., WRX, STI, Legacy, Outback). Below is a detailed breakdown of its advantages and disadvantages.

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### **Pros**

1. **OEM Quality and Fitment**

The 57707AN40A is an original equipment manufacturer (OEM) part, meaning it is designed to match the exact specifications of the vehicle s original upper control arm assembly. This ensures a precise fit, reducing the risk of misalignment or improper installation. OEM parts are also built to the same durability standards as factory components, which can be critical for maintaining proper suspension geometry and handling.

2. **Reliability and Longevity**

Subaru s OEM parts are engineered for long-term use, especially in their suspension systems, which are designed for durability and performance. The 57707AN40A is typically made from high-strength steel or aluminum, depending on the model, and is built to withstand the stresses of daily driving, including rough roads or aggressive driving (common in WRX/STI applications). Replacing a worn or damaged bracket with an OEM part can extend the life of other suspension components by preventing premature wear on bushings, ball joints, or control arms.

3. **Compatibility with Aftermarket Upgrades**

If you plan to modify your Subaru s suspension (e.g., lowering springs, coilovers, or sway bars), an OEM upper bracket ensures that the new components integrate correctly. Aftermarket parts often rely on the original suspension geometry to function properly, so using a genuine bracket avoids issues like binding or improper alignment that could arise from aftermarket alternatives that may not fit as precisely.

4. **Warranty Coverage**

Purchasing an OEM part from a reputable dealer or Subaru-approved supplier may come with warranty coverage, depending on the seller. This can provide peace of mind, especially if the part fails prematurely due to manufacturing defects. Some aftermarket parts may offer warranties as well, but OEM warranties are often more robust and easier to claim.

5. **Prevents Further Damage**

A failing upper bracket can lead to excessive play in the suspension, causing uneven tire wear, poor handling, and potential damage to other components like the ball joint or control arm. Replacing it proactively can prevent costly repairs down the line. Symptoms of a bad bracket include clunking noises over bumps, misaligned tires, or a loose steering feel.

6. **Ease of Installation**

Since it is an OEM part, the 57707AN40A is designed to be installed using standard tools and procedures. This makes it a straightforward replacement for DIYers or mechanics familiar with Subaru suspension work. Aftermarket parts may require additional modifications or adjustments to fit properly.

7. **Consistency with Factory Tuning**

For performance-oriented Subarus (e.g., WRX, STI), maintaining OEM suspension components ensures that the vehicle s original tuning and balance are preserved. This is particularly important for drifters or track use, where suspension integrity is critical for predictable handling.

---

### **Cons**

1. **Higher Cost Compared to Aftermarket Alternatives**

OEM parts are generally more expensive than aftermarket equivalents. The 57707AN40A may cost significantly more than a third-party bracket, which could be a deterrent for budget-conscious buyers. Aftermarket options often provide similar performance at a fraction of the price, though quality varies widely.

2. **Limited Customization**

If you are looking to modify the suspension (e.g., for aggressive driving or drifting), OEM brackets may not offer the same level of customization as aftermarket parts. Some aftermarket brackets are designed with reinforced materials, different mounting points, or adjustable features that can enhance performance or durability in specific applications.

3. **Potential for Counterfeit Parts**

When purchasing OEM parts, especially online, there is a risk of receiving counterfeit or salvaged (junkyard) parts. Counterfeit OEM parts may not meet the same quality standards and could fail prematurely. It is crucial to buy from authorized dealers or reputable suppliers to avoid this issue.

4. **Longer Lead Times**

OEM parts may have longer lead times compared to aftermarket options, which are often stocked in larger quantities by suppliers. This can delay repairs if you need the part urgently.

5. **Overkill for Mild Applications**

For vehicles that are not heavily modified or driven aggressively, an OEM bracket may be more than necessary. In such cases, a high-quality aftermarket bracket could suffice while saving money. However, for high-performance or track use, the OEM part s reliability is often worth the investment.

6. **Weight Considerations**

Some OEM brackets, particularly those made from steel, can be heavier than aftermarket alternatives that use lighter materials like aluminum or composite. While weight is rarely a significant factor in most applications, it may be a consideration for extreme performance builds where every gram counts.

7. **Potential for Over-Engineering**

For stock or mildly modified Subarus, an OEM bracket might be more robust than needed. This could lead to unnecessary expense if the part is not subjected to extreme stress. In such cases, a mid-range aftermarket part could provide adequate performance without the higher cost.

---

### **Conclusion**

The **Subaru 57707AN40A upper bracket** is a high-quality, reliable OEM part that offers precise fitment, durability, and compatibility with both stock and modified Subarus. It is an excellent choice for owners who prioritize longevity, warranty coverage, and the assurance of factory-spec performance. The part is particularly well-suited for performance-oriented vehicles (e.g., WRX, STI) where suspension integrity is critical, or for those who prefer to stick with genuine components for maintenance and repairs.

However, the higher cost and potential for overkill in mild applications may make aftermarket alternatives more appealing for budget-conscious buyers or those with less demanding driving needs. If you opt for an aftermarket part, ensure it is from a reputable manufacturer with good reviews and proper fitment guarantees.

- **Choose the OEM 57707AN40A if:** You want the best fit, maximum durability, and peace of mind, especially for performance or track use.

- **Consider an aftermarket alternative if:** You are on a tighter budget, your vehicle is not heavily modified, or you prefer lighter-weight or customizable options.

For most high-performance Subaru owners, the 57707AN40A is a worthwhile investment in the long run, as it helps maintain the vehicle s handling, safety, and resale value.

---

### **Recommendation**

For **stock or mildly modified Subarus**, the 57707AN40A is an excellent choice if you can afford it, as it ensures compatibility with aftermarket upgrades and provides the highest level of reliability. If cost is a concern, research high-quality aftermarket alternatives (e.g., from brands like **Motive Parts, S&B, or Bilstein**) that offer similar performance and warranties.

For **aggressive drivers, drifters, or track use**, the OEM bracket is strongly recommended due to its durability and precision. In these cases, cutting corners with a lower-quality part could lead to costly failures or unsafe handling.

Always purchase from **authorized Subaru dealers or trusted online retailers** to avoid counterfeit parts, and follow proper installation procedures to maximize the part s lifespan. Regularly inspect the bracket and surrounding suspension components to catch any issues early.

Details:

OEM Subaru Parts Center. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Parts must be resalable and in the original packaging. Electrical parts are not returnable.

part #: 57707an40a prices

• $19.23-$29.99

specifications vintagecarbumperus:

• for models: Outback
• for makes: Subaru
• for years: 2022-2023
• mpn: 57707an40a
• part type: Bracket
• genuine oem: Yes
• warranty: 1 Year
• fitment type: Direct Replacement
• year: 2022 2023
• parts included: Only Part Reference 7 On The Diagram Is Included

payments vintagecarbumperus:

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

offer vintagecarbumperus:

• started: March 29, 2026
• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 1

shipping vintagecarbumperus:

• class: Standard
• type: Fixed
• transit: 4-9 Days
• service: Standard
• cost: $7.95

general vintagecarbumperus:

• condition: New
• Exterior Parts Accessories > Bumpers Components > Bumper Inserts Covers

returns vintagecarbumperus:

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

seller vintagecarbumperus:

• city: Natick, Massachusetts
• # reviews: 67
• rating: 100.0%

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