WISECO S591 Pistonpin Nonchromed 193564122506 23MM 2.126IN

( Brand: Wiseco ), ( Manufacturer Part Number: S591 ), ( Warranty: 1 Year ), ( Material: 5115 ), ( Weight: 79.00 Gr ), ( Wrist Pin Outer Diameter: 23.00 Mm ), ( Wrist Pin Inner Diameter: 16.00 Mm ), ( Wrist Pin Length: 54.00 Mm ), ( Wrist Pin Retainer Style: Wire Lock ), ( Product Type: Wrist Pins ), ( Industry: Powersports ), ( Product Market: Atv/utv ), ( Category Hierarchy: Powersports Pistons Piston Components Wrist Pin ), ( Out Of Stock Message: Estimated Shipped Date 3-4 Weeks ), ( Title: Wiseco Powersports Pistonpin 23mm X 2.126in Nonchromed Tw ), ( Title Web: Wiseco Wrist Pin 23mm Od 54mm L ), ( Prop 65 Short Label: Prop 65 Warning Label.jpg ), ( Prop 65: C ), ( R Or Cr : Cr ), ( Prop 65 Yes/no: Yes ), ( Engine Type: Ice ), ( Category Id: 177976 ), ( Country Of Origin: Taiwan ), ( UPC: 193564122506 )

Review WISECO Pistonpin 23mm 2.126in Nonchromed Tw

The **Wisco S591 23mm (2.126") Non-Chromed Twin Piston Pin** is a precision-engineered component designed to deliver exceptional performance and durability in high-stress automotive applications, particularly within forced induction and high-revving engines. Crafted from high-grade, heat-treated steel, this piston pin is engineered to withstand the intense forces generated during extreme power outputs, making it an ideal choice for enthusiasts and professional mechanics seeking to enhance the reliability and longevity of their engine builds. The **23mm diameter** (equivalent to 2.126 inches) ensures a snug fit within most modern engine designs, including those commonly found in turbocharged, supercharged, or naturally aspirated high-performance setups. Unlike standard aftermarket pins, the **non-chromed** finish eliminates the risk of galvanic corrosion when paired with aluminum components, a common issue in engines where dissimilar metals come into contact. This design choice also reduces friction and wear, allowing for smoother operation and extended service life. The **twin (or "twin-wall") construction** provides additional strength and rigidity, distributing stress more evenly across the pin s surface, which is particularly beneficial in engines with aggressive camshaft profiles or high compression ratios. Whether installed in a daily driver modified for extra power or a competition engine pushing the limits of performance, this piston pin offers a robust alternative to OEM parts, ensuring consistent performance under demanding conditions. Built to meet or exceed factory specifications, the Wisco S591 is a trusted upgrade for those who demand precision, reliability, and the ability to push their engines to their full potential without compromising structural integrity.

### **Pros and Cons of buying a Wiseco S591 Piston Pin (23mm / 2.126" Non-Chromed, Two-Way)**

1. **High-Quality Material** Wiseco piston pins are forged from high-strength steel, ensuring durability and resistance to wear, which is critical for high-performance applications.

2. **Precision Engineering** The pins are machined to tight tolerances, ensuring proper fit and minimal clearance, which reduces friction and improves engine reliability.

3. **Two-Way Design** The two-way design allows for better oil distribution and cooling, reducing the risk of pin galling or seizing, especially in forced induction or high-RPM applications.

4. **Non-Chromed Option** The non-chromed version is often less expensive than chromed alternatives while still providing strong performance, making it a cost-effective choice for stock or mild builds.

5. **Compatibility** Wiseco parts are widely used in aftermarket builds, meaning they are likely to fit standard engine blocks without modification.

6. **Warranty and Reputation** Wiseco is a trusted brand with a solid reputation for reliability, offering warranties on their products to back their quality.

7. **Easy Installation** The pins are straightforward to install, requiring minimal special tools, making them accessible for DIY enthusiasts.

1. **Non-Chromed Durability Concerns** Without chrome plating, the pins may be more susceptible to corrosion in high-humidity environments or if oil quality is poor, potentially shortening their lifespan in extreme conditions.

2. **Cost Compared to Stock** While still reasonable, Wiseco pins are more expensive than OEM (original equipment manufacturer) parts, which may not be justified for stock or low-mileage engines.

3. **Potential Overkill for Mild Builds** If you re running a stock or lightly modified engine with no forced induction, the benefits of Wiseco pins may not be as noticeable, making them a less critical upgrade.

4. **Limited Customization** Unlike some aftermarket brands, Wiseco offers fewer color or finish options (e.g., no anodized or polished variants), which may not appeal to those seeking aesthetic upgrades.

5. **Potential for Misalignment** If not installed correctly, even high-quality pins can cause issues like binding or uneven wear, though this is more a matter of installation technique than the pin itself.

---

The Wiseco S591 piston pin is an excellent choice for enthusiasts running **high-performance, turbocharged, or supercharged engines**, or those looking to upgrade from stock components for reliability and durability. Its two-way design, precision machining, and high-strength material make it a strong performer in demanding applications. However, for **stock or mildly modified engines**, the cost may not be fully justified unless you re specifically targeting longevity or racing performance.

If you re running a **forced induction setup, high-RPM engine, or a build where reliability is critical**, the Wiseco S591 is a **highly recommended upgrade**. For **stock or low-stress applications**, consider whether the investment is necessary or if OEM pins would suffice.

---

- **Buy it if:** You re running a **turbocharged, supercharged, or high-performance engine**, or if you re building a **durability-focused project** where piston pin reliability is a priority.

- **Skip it if:** You re on a **tight budget** and your engine is **stock or lightly modified**, as the benefits may not outweigh the cost.

- **Alternative consideration:** If you re concerned about corrosion, a **chromed version** (e.g., Wiseco S591 chromed) might be worth the extra cost for extreme environments. For budget builds, **OEM pins with proper maintenance** could be sufficient.

Details:

What sort of stuff are we talking about. But guess what. Pistons are just a part of what Wiseco has to offer. Wiseco has attained that instant brand-recognition by being the only USA manufacturer of forged pistons for motor sports market, and carry a full line applications just about any 2 or 4-stroke engine you can think.

Wiseco PistonPin 23mm x 2.126in NonChromed TW S591. After 75 years in the business, name Wiseco has become synonymous with pistons,especially pistons for off-road racing and riding. CI Motor sports is known for its expertise in import car tuning and performance modification, catering to enthusiasts who seek improve their vehicles power, handling, overall driving experience. Good things, everything from forged clutch baskets to striker cranks and connecting rods of course some very special pistons.

Part #: S591.

part #: s591 prices

• $35.52-$43.28

specifications pistonrinro:

• brand: Wiseco
• mpn: S591
• warranty: 1 Year
• material: 5115
• weight: 79.00 Gr
• wrist pin outer diameter: 23.00 Mm
• wrist pin inner diameter: 16.00 Mm
• wrist pin length: 54.00 Mm
• wrist pin retainer style: Wire Lock
• product type: Wrist Pins
• industry: Powersports
• product market: Atv/utv
• category hierarchy: Powersports Pistons Piston Components Wrist Pin
• out of stock message: Estimated Shipped Date 3-4 Weeks
• title: Wiseco Powersports Pistonpin 23mm X 2.126in Nonchromed Tw
• title web: Wiseco Wrist Pin 23mm Od 54mm L
• prop 65 short label: Prop 65 Warning Label.jpg
• prop 65: C
• r or cr : Cr
• prop 65 yes/no: Yes
• engine type: Ice
• category id: 177976
• country of origin: Taiwan
• upc: 193564122506

shipping pistonrinro:

• cost: $0.00
• transit: 3-7 Days
• type: Fixed
• class: Standard
• service: Standard

general pistonrinro:

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

returns pistonrinro:

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

seller pistonrinro:

• # reviews: 4092
• rating: 99.9%
• city: Coral, Pennsylvania

payments pistonrinro:

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

offer pistonrinro:

• quantity: 2
• availability: In Stock
• options: Ship-to-home
• sold: 0
• started: April 14, 2026

Wiseco S591 Is Similar To:

• Wiseco 193564122414 S550 Pistonpin 22mm X 2.002 Inch Nonchromed Tw (75.9% similar) Pistonpin 22MM x 2.002IN nonchromed tw Wiseco offers a range of performance accessories to help you get your rebuild done right, including hour meters, honing brushes, ring compressors, piston components, carburetor jets, and more. Let Wiseco help you get your rebuild done right with its proven ...(January 1st, 2026)
• Wiseco S618 Pistonpin 22mm X 2.000in Nonchromed Sw (86% similar) Ci motor sports is known for its expertise in import car tuning and performance modification, catering to enthusiasts who seek improve their vehicles power, handling, overall driving experience. But guess what. Wiseco pistonpin 22MM x 2.000IN nonchromed SW S618. Part #: S618. Good things, everything...(April 14th, 2026)