GM 96055256 Exhaust Bolt General
( Brand: Gm ), ( Manufacturer Part Number: 96055256 ), ( Part Type: Exhaust Bolt Motor ), ( Universal Fitment: Direct Replacement )
Review GM General Motors Genuine Oem Exhaust Bolt
The **96055256 GM Exhaust Bolt** is a precision-engineered fastener designed specifically for General Motors applications, ensuring optimal performance and reliability in high-stress automotive exhaust systems. Crafted from high-grade **12-point carbon steel**, this bolt is heat-treated to achieve an exceptional tensile strength of approximately **120,000 to 140,000 psi**, making it resistant to deformation under extreme temperatures and mechanical loads commonly encountered in exhaust manifolds, headers, and turbocharged systems. Its **fine-threaded design** (typically **M12 x 1.5 or M14 x 1.5**, depending on the application) ensures a secure, leak-proof connection, preventing exhaust gas leaks that could compromise engine efficiency or safety.
This bolt features a **hex head with a smooth, corrosion-resistant finish**, often treated with a **black oxide or zinc plating** to inhibit rust and extend its service life in harsh environments, including those exposed to road salt, moisture, and exhaust fumes. The **12-point drive** provides a balanced grip, reducing the risk of cam-out during installation or removal, while the **flat or slightly tapered head** ensures proper seating against gaskets or flanges. Engineered to meet **GM s stringent specifications**, this bolt is compatible with a wide range of vehicles, including **Chevrolet, GMC, Buick, and Cadillac models** from the late 1990s through the 2010s, particularly those equipped with **LS-series engines, Ecotec turbocharged applications, or high-performance exhaust systems**.
Beyond its mechanical robustness, the **96055256 GM Exhaust Bolt** is designed with **thread-locking properties** either through a proprietary coating or the use of **Loctite or equivalent thread adhesive** to prevent loosening due to vibration or thermal cycling. This feature is critical in exhaust systems where bolt failure could lead to catastrophic damage, such as a blown manifold or turbocharger. The bolt s **uniform thread pitch** and **consistent material hardness** also contribute to a consistent clamping force, ensuring a reliable seal between exhaust components. Whether used in **OEM rebuilds, aftermarket modifications, or performance upgrades**, this bolt delivers the durability and precision required to maintain exhaust system integrity under demanding conditions. For optimal results, it is recommended to use a **torque wrench** to achieve the manufacturer s specified clamping force, typically ranging between **60 to 100 ft-lbs**, depending on the application.
### **Pros and Cons of Buying a General 96055256 GM Exhaust Bolt**
#### **Pros:**1. **Compatibility** This bolt is designed specifically for General Motors (GM) vehicles, ensuring a proper fit for applications like exhaust systems, headers, or other aftermarket modifications. It is commonly used in GM engines, particularly those from the 1990s to early 2000s, including models like the LS-series engines (e.g., LS1, LS6) and some small-block applications.
2. **Durability** GM exhaust bolts are typically made from high-strength steel or stainless steel, which provides resistance to heat, corrosion, and stress. This makes them suitable for high-performance or daily-drive applications where reliability is critical.
3. **Easy Availability** As a widely used part, this bolt is readily available from GM dealerships, auto parts stores (e.g., AutoZone, RockAuto, O Reilly), and online retailers. Replacement parts are often stocked in bulk, reducing lead times.
4. **Standardized Threading** The bolt follows GM s engineering standards, ensuring consistent threading and torque specifications. This minimizes the risk of cross-threading or improper installation, which can lead to leaks or failure.
5. **Cost-Effective** Compared to specialty or aftermarket bolts, GM s OEM (Original Equipment Manufacturer) bolts are often priced competitively, especially when buying in bulk or from discount retailers. This makes them a practical choice for DIYers or mechanics on a budget.
6. **Warranty Coverage** If purchased new from an authorized dealer or a reputable retailer, the bolt may come with a warranty, offering protection against defects in materials or workmanship.
7. **Versatility** The bolt can be used in various applications beyond exhaust systems, such as intake manifolds, valve covers, or other engine components where GM s specifications are required.
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#### **Cons:**1. **Potential for Counterfeit Parts** Due to the bolt s popularity, there is a risk of purchasing counterfeit or low-quality replicas, especially from untrusted online sellers. Counterfeit bolts may fail prematurely, leading to exhaust leaks, engine damage, or safety hazards.
2. **Limited Longevity in Extreme Conditions** While GM bolts are durable, they may not perform as well in extreme environments (e.g., high-performance racing, off-roading, or high-temperature applications) compared to specialized bolts (e.g., ARP, EBC, or TorqSpec). Over time, heat and vibration can cause wear or loosening.
3. **Torque Specifications Must Be Followed** Improper torque can lead to stripped threads, bolt failure, or damage to the mating surface. GM bolts require precise torque values (often between 60 80 ft-lbs, depending on the application), and exceeding these can cause issues.
4. **Potential for Rust or Corrosion** While many GM bolts are stainless steel, some may still rust over time, particularly in humid or salted environments. This can weaken the bolt and lead to failure if not addressed.
5. **Mismatch with Aftermarket Components** If you re installing aftermarket exhaust systems or modifications, the GM bolt may not align perfectly with non-GM parts. In such cases, you might need to source bolts from the aftermarket manufacturer instead.
6. **Dependence on GM s Design** GM s bolt design may not always incorporate the latest advancements in bolt technology (e.g., serrated washers, locking compounds, or high-performance coatings). For high-stress applications, aftermarket bolts with additional features may be preferable.
7. **Limited Customization** Unlike aftermarket bolts, GM bolts do not offer customization options such as different lengths, thread pitches, or coatings. If your application requires specific dimensions, you may need to source elsewhere.
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### **Conclusion:**The **General 96055256 GM exhaust bolt** is a reliable and cost-effective choice for most GM vehicle applications, particularly for stock or mild performance builds. It offers compatibility, durability, and ease of availability, making it a practical option for DIYers and mechanics. However, its suitability depends on the specific use case high-performance or extreme conditions may require aftermarket alternatives for added strength and longevity.
For **daily driving, stock exhaust replacements, or basic modifications**, this bolt is an excellent and economical selection. For **high-performance, racing, or off-road applications**, consider upgrading to bolts from brands like ARP, EBC, or TorqSpec, which offer superior strength and locking features.
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### **Recommendation:**- **Buy from a trusted source** (e.g., RockAuto, O Reilly, or a GM dealership) to avoid counterfeit parts.
- **Verify torque specifications** and use a torque wrench to prevent over-tightening.
- **Inspect bolts regularly** for signs of wear, rust, or loosening, especially in high-stress applications.
- **For high-performance builds**, supplement with aftermarket bolts or locking compounds (e.g., Loctite 271) to enhance reliability.
- **Check compatibility** with your specific vehicle and exhaust system to ensure a proper fit.
If you re unsure about the bolt s suitability for your project, consult a mechanic or refer to your vehicle s service manual for exact specifications.
Details:
Check part number and photos.
part #: 96055256 prices
- $11.99-$19.95
specifications emissyste:
- brand: Gm
- mpn: 96055256
- part type: Exhaust Bolt Motor
- universal fitment: Direct Replacement
payments emissyste:
- other
- credit card: Visa
- wallet: Google-pay
offer emissyste:
- best offers: True
- started: February 8, 2026
- quantity: 1
- availability: In Stock
- sold: 0
- options: Ship-to-home
general emissyste:
- Car Truck Parts Accessories > Exhaust Emission Systems > Other Exhaust Emission Parts
- condition: New other see details
seller emissyste:
- rating: 100.0%
- city: Rock Valley, Iowa
- # reviews: 581
returns emissyste:
- policy: Returns Accepted
- time: 30 Days
- paid by: Seller
shipping emissyste:
- class: Standard
- cost: $5.00
- carrier: USPS
- transit: 4-11 Days
- type: Calculated
- service: USPS Ground Advantage
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