ASSENMACHER SU7500 Crankshaft Socket

( Brand: Assenmacher ), ( Manufacturer Part Number: SU7500 ), ( Product Type: Engine Service Tools ), ( Fitment Type: Vehicle Specific ), ( Partslink Number: 499987500 ), ( Compatible Model S : Wrx Sti, Wrx, Impreza, Outback, Forester, Legacy, Baja ), ( Fitnote: For Subarus With A Cable-actuated Throttle Body ), ( Product Subtype: Crankshaft Tools ), ( Application: Damper Holding ), ( Type: Sockets )

Review ASSENMACHER Subaru Crankshaft Socket fits WRX STI 2013–2014

The **Assenmacher SU7500** is a premium, high-performance crankshaft socket designed specifically for Subaru WRX STI models from 2013 to 2014, engineered to deliver unmatched precision, durability, and ease of use during engine maintenance and modifications. Crafted from **high-grade, heat-treated alloy steel**, this socket features a **robust, reinforced internal structure** that ensures consistent torque application and minimizes the risk of slippage or damage to the crankshaft bolts, which are often subjected to extreme stress in high-performance applications. The **SU7500 s unique hexagonal drive system** provides superior grip and torque transfer, making it ideal for both professional mechanics and enthusiasts who demand reliability in demanding environments. Unlike standard sockets, the Assenmacher SU7500 incorporates **precision-machined internal threads** that align perfectly with the Subaru FA20D engine s crankshaft bolt pattern, reducing the chance of cross-threading or stripping critical factors when working on a high-revving, turbocharged engine like the STI s FA20D. Its **ergonomic, contoured handle** offers a comfortable grip, even during extended use, while the **durable, corrosion-resistant coating** ensures longevity, resisting the harsh conditions often encountered in garage settings. Whether you're performing routine maintenance, installing aftermarket components, or fine-tuning your STI s engine for track performance, the Assenmacher SU7500 delivers the strength and precision required to handle the most demanding tasks with confidence. Built to complement the STI s aggressive performance ethos, this socket is a must-have tool for anyone serious about maintaining or modifying their vehicle s powerplant.

The Assenmacher SU7500 is a popular crankshaft socket designed for Subaru WRX STI models from 2013 to 2014, particularly those with the FA20D engine. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

### **Pros of the Assenmacher SU7500 Crankshaft Socket**

1. **High-Quality Construction** The socket is made from hardened chrome-molybdenum steel, which provides durability and resistance to wear, especially important for high-torque applications like the STI s FA20D engine.

2. **Precision Fit** Assenmacher is known for producing sockets with tight tolerances, ensuring a secure and reliable grip on the crankshaft bolts. This reduces the risk of slippage during installation or removal, which is critical for preventing cross-threading or damage to the threads.

3. **Heat Resistance** The socket is designed to withstand higher temperatures, which is beneficial when working on engines that generate significant heat, such as turbocharged or high-performance applications.

4. **Compatibility** The SU7500 is specifically engineered for the 2013-2014 Subaru WRX STI s crankshaft bolts, making it a direct replacement for OEM sockets. This ensures proper alignment and reduces the risk of misalignment issues.

5. **Durability for Repeated Use** Unlike cheaper, flimsier sockets, the Assenmacher SU7500 is built to last through multiple installations and removals, making it a cost-effective long-term solution.

6. **Brand Reputation** Assenmacher is a well-respected brand in the performance and tuning community, known for producing high-quality tools that meet or exceed OEM specifications.

7. **Ease of Use** The socket features a smooth, ergonomic design that allows for better grip and control, reducing hand fatigue during extended use.

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### **Cons of the Assenmacher SU7500 Crankshaft Socket**

1. **Cost** Compared to generic or budget-brand sockets, the Assenmacher SU7500 is more expensive. While the price reflects its quality, it may be a significant investment for those on a tight budget.

2. **Specialty Tool Requirement** Crankshaft bolts are often tightened using specialized tools (such as torque wrenches with breakaway features or hydraulic bolt tighteners) to ensure proper torque specifications. The socket itself does not address the need for these tools, which can add to the overall cost of the job.

3. **Limited Use Beyond the STI** The socket is not universal; it is specifically designed for the 2013-2014 WRX STI s crankshaft bolts. If you own multiple vehicles with different crankshaft bolt patterns, this socket will not be interchangeable.

4. **Potential for Over-Tightening** If not used with the correct torque specifications or tools, there is a risk of over-tightening the crankshaft bolts, which could lead to damage to the threads or the crankshaft itself. However, this is more of a user-error issue than a flaw in the socket.

5. **Availability and Lead Times** Depending on the region, Assenmacher products may not always be readily available in local stores, requiring online purchases, which could involve shipping delays.

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### **Conclusion**

The Assenmacher SU7500 crankshaft socket is a high-quality, reliable tool that is well-suited for the 2013-2014 Subaru WRX STI s crankshaft bolts. Its precision engineering, durability, and compatibility with the FA20D engine make it a strong choice for serious tuners, mechanics, and enthusiasts who prioritize quality and longevity. However, its higher cost and the need for complementary tools (such as torque wrenches) may be drawbacks for those looking for a more budget-friendly or versatile solution.

For most STI owners who perform their own maintenance or modifications, the Assenmacher SU7500 is a worthwhile investment. It reduces the risk of errors during bolt installation or removal, which is critical for engine longevity and performance.

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### **Recommendation**

If you are working on your 2013-2014 WRX STI and need a reliable crankshaft socket, the **Assenmacher SU7500 is highly recommended**. Pair it with a high-quality torque wrench (such as a hydraulic or breakaway tool) to ensure proper tightening of the crankshaft bolts. While it may not be the cheapest option, its durability and precision justify the cost for those who take their vehicle s maintenance seriously.

For those on a tighter budget, consider researching alternative brands (such as Snap-on or Matco) that offer comparable quality, though Assenmacher remains a top-tier choice in the performance community. Always follow the manufacturer s torque specifications and use the correct tools to avoid damaging the engine.

Details:

Notes: Comparable to Subaru #499987500. Specifications: Drive Size: 1/2. This product is distinguished by total quality assurance, unsurpassed anybody else. Features: Will operate at its full efficiency for years ahead.

Crankshaft Socket by Assenmacher. Replaces Original OE Part #: 499987500. This tool combines the individual tools available into one tool, while also increasing applications.

part #: su7500 prices

• $49.85-$69.84

specifications cranshafengin:

• for models: Wrx, Sti
• for makes: Subaru
• for years: 2013-2014
• brand: Assenmacher
• mpn: Su7500
• product type: Engine Service Tools
• fitment type: Vehicle Specific
• partslink number: 499987500
• compatible model s : Wrx Sti, Wrx, Impreza, Outback, Forester, Legacy, Baja
• fitnote: For Subarus With A Cable-actuated Throttle Body
• product subtype: Crankshaft Tools
• application: Damper Holding
• type: Sockets

general cranshafengin:

• Car Truck Parts Accessories > Engines Engine Parts > Crankshafts
• condition: New

shipping cranshafengin:

• cost: $20.85
• type: Calculated
• carrier: FedEx
• service: FedEx Ground / FedEx Home Delivery
• transit: 4-8 Days
• class: Standard

returns cranshafengin:

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

payments cranshafengin:

• credit card: Diners-club
• wallet: Paypal
• other

seller cranshafengin:

• # reviews: 13276
• city: Newark, New Jersey
• rating: 95.7%

offer cranshafengin:

• started: June 4, 2026
• sold: 0
• quantity: 2
• availability: In Stock
• options: Ship-to-home

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