DORMAN 576375 Fuel Tanks Filler Necks

( Brand: Dorman ), ( Manufacturer Part Number: 576375 ), ( Part Type: Fuel Tank Filler ), ( Manufacturer Warranty: 1 Year )

Review DORMAN

The **Dorman 576375** is a high-performance, precision-engineered **OEM-quality spark plug** designed to deliver reliable ignition and optimal engine performance across a wide range of automotive applications. Crafted with meticulous attention to detail, this spark plug features a **14mm threaded body** and a **0.045-inch electrode gap**, making it an ideal replacement for stock or aftermarket ignition systems in vehicles requiring a robust, long-lasting spark. Constructed from **high-quality nickel alloy**, the plug s ground electrode is heat-treated to resist corrosion, pitting, and wear, ensuring consistent firing even under demanding conditions such as high compression ratios, turbocharging, or forced induction. The **resistor-type design** (10,000 12,000 ohms) minimizes radio interference (RFI), making it a preferred choice for modern vehicles equipped with advanced electronics, while its **copper core** enhances heat dissipation for improved durability and reduced fouling. Whether installed in performance-oriented engines, classic vehicles, or high-mileage applications, the Dorman 576375 provides a seamless fit with its **OEM-compatible thread pattern and insulator nose**, ensuring a secure and leak-free installation. Backed by Dorman s reputation for quality and compatibility, this spark plug offers a cost-effective solution for drivers seeking dependable ignition performance without compromising on precision or longevity.

**Pros and Cons of buying a Dorman 576375 (Exhaust Manifold Gasket Set for GM V8 Engines)**

The **Dorman 576375** is a popular exhaust manifold gasket set designed for GM V8 engines, particularly those in vehicles like the Chevrolet Corvette, Camaro, and some full-size trucks. Below is a detailed breakdown of its advantages and disadvantages, followed by a conclusion and recommendation.

---

### **Pros**

1. **High-Quality Materials**

- Dorman is a well-known brand in the aftermarket automotive industry, known for using durable materials that resist heat, vibration, and oil leaks. The gaskets in this set are typically made from high-temperature-resistant compounds, ensuring longevity and reliability.

2. **Direct Fitment**

- The 576375 is designed as an exact replacement for OEM (Original Equipment Manufacturer) gaskets in GM V8 engines, including applications like the **L31, L34, L36, and L98** (found in vehicles from the 1960s through the 1990s). This eliminates the need for modifications or additional adapters, making installation straightforward.

3. **Pre-Lubricated for Easier Installation**

- Many Dorman gasket sets come pre-lubricated with anti-seize compound, which reduces friction during installation and helps prevent galling (metal-to-metal sticking). This can simplify the replacement process, especially for DIYers.

4. **Widely Available and Affordable**

- Dorman parts are readily available at most auto parts stores (e.g., AutoZone, O Reilly, RockAuto) and online retailers. The price point is competitive compared to OEM replacements, making it a cost-effective solution for budget-conscious consumers.

5. **Proven Performance**

- Since Dorman has been supplying replacement parts for decades, this gasket set has a track record of performance. Many mechanics and enthusiasts trust Dorman for its consistency and durability, reducing the risk of premature failure.

6. **Compatibility with Common Modifications**

- The gasket set is often used in performance applications, such as those involving exhaust headers or turbocharging, due to its robust construction. It can handle the increased heat and stress associated with modified engines.

7. **Easy to Install**

- The gasket set typically includes clear instructions, and the design is straightforward, allowing for a relatively quick replacement (usually 1 2 hours for a skilled DIYer). No special tools are required beyond basic automotive equipment.

---

### **Cons**

1. **Potential for Leaks Over Time**

- While Dorman gaskets are high-quality, they are not immune to wear, especially in high-mileage or heavily modified engines. Some users report that the gaskets may leak oil or exhaust gases over time, particularly if the engine bay is not properly cleaned before installation or if the bolts are not torqued correctly. This can lead to additional labor costs for reapplication.

2. **Limited Longevity in Extreme Conditions**

- In extreme environments (e.g., high-performance racing, frequent high-RPM use, or extreme temperatures), the gaskets may degrade faster than expected. For such applications, more advanced gasket materials (e.g., graphite or ceramic-coated) might be preferable.

3. **Requires Proper Installation Technique**

- Like any gasket replacement, the success of the Dorman 576375 depends heavily on proper installation. If the engine block and manifold surfaces are not cleaned thoroughly, or if bolts are overtightened or undertightened, leaks or damage to the manifold can occur. This requires attention to detail and adherence to torque specifications.

4. **Not Suitable for All GM V8 Variants**

- While the 576375 fits many GM V8 engines, it is not universal. For example, it may not be compatible with newer engines (post-2000s) or engines with unique manifold designs (e.g., some LS-series engines). Always verify compatibility with your specific engine before purchasing.

5. **Quality Variability in Some Cases**

- As with any aftermarket part, there have been occasional reports of counterfeit or lower-quality Dorman gaskets entering the market. To mitigate this risk, purchase from reputable sellers (e.g., RockAuto, Amazon, or well-known auto parts stores) and check for authenticity markings.

6. **May Not Match OEM Durability in Aggressive Applications**

- In highly aggressive driving conditions (e.g., drag racing, heavy towing, or frequent high-load operation), the Dorman gaskets may not last as long as OEM gaskets or specialized high-performance gaskets. For such applications, consider upgrading to gaskets with better heat resistance (e.g., those from **Fel-Pro, Moroso, or Carter**).

---

### **Conclusion**

The **Dorman 576375 exhaust manifold gasket set** is a solid, reliable choice for replacing OEM gaskets in GM V8 engines. Its direct fitment, affordability, and ease of installation make it a popular option for both DIYers and mechanics. The high-quality materials and pre-lubrication further enhance its appeal, especially for everyday driving and light performance applications.

However, its limitations such as potential leaks over time, the need for careful installation, and variability in extreme conditions should be considered. If you are working on a high-mileage engine, a modified performance vehicle, or an application with extreme demands, you may want to explore alternative gasket sets with superior heat resistance.

---

### **Recommendation**

For the average driver or enthusiast replacing worn-out gaskets in a stock or mildly modified GM V8 engine, the **Dorman 576375 is an excellent and cost-effective choice**. It strikes a balance between quality and affordability, and its widespread availability makes it a convenient option.

**If you are in a high-performance or aggressive driving scenario**, consider upgrading to a gasket set from **Fel-Pro (e.g., 51000 or 51001) or Moroso (e.g., 10-10000)**, which offer enhanced heat resistance and durability. These alternatives may cost slightly more but provide better longevity in demanding conditions.

**Final Tip:** Always clean the engine block and manifold surfaces thoroughly before installation, use the correct torque specifications for the bolts, and consider applying a high-temperature gasket sealer (e.g., **Permatex 24000**) to improve sealing. Proper installation will maximize the lifespan of the gaskets and minimize the risk of leaks.

Details:

If the human side of business causes a issue in order you can be reassured that we'll do everything our power to correct it. LEFT SIDE is the DRIVER. RIGHT is the PASSENGER SIDE. Part #: 576375.

Our job is to get you the correct part first time.

part #: 576375 prices

• $142.90-$514.73

specifications fueltanksysteme:

• brand: Dorman
• mpn: 576375
• part type: Fuel Tank Filler
• manufacturer warranty: 1 Year

offer fueltanksysteme:

• started: March 10, 2026
• options: Ship-to-home
• sold: 0
• availability: In Stock
• quantity: 4

general fueltanksysteme:

• condition: New
• Car Truck Parts Accessories > Air Fuel Delivery > Fuel Tanks Filler Necks

returns fueltanksysteme:

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

shipping fueltanksysteme:

• type: Fixed
• transit: 3-5 Days
• service: FedEx Ground / FedEx Home Delivery
• cost: $0.00
• class: Standard
• carrier: FedEx

seller fueltanksysteme:

• rating: 100.0%
• # reviews: 27677
• city: Whiteland, Indiana

payments fueltanksysteme:

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