1. Engines Aviation Parts Accessories For Sale
  2. sku: 8299544751061741
  3. DUKES 3570-00-3

DUKES 3570-00-3 Fuel Check Valve

3570-00-3 Dukes Fuel System Check Valve

( Brand: Dukes ), ( Manufacturer Part Number: 3570-00-3 ), ( Part Type: Fuel Valve Check ), ( Compatible Make: Lycoming ), ( Country Of Origin: United States )

Review DUKES Fuel System Check Valve

The **Duke 3570-00-3 Fuel Check Valve** is a precision-engineered, high-performance component designed to ensure reliable fuel system integrity in automotive, marine, and industrial applications. Crafted from durable, corrosion-resistant materials, this check valve is engineered to maintain optimal fuel flow while preventing backflow, contamination, or pressure surges that could compromise engine performance or fuel system longevity. Its robust construction features a robust stainless steel or brass housing, depending on the application, ensuring resistance to harsh chemicals, moisture, and temperature fluctuations ideal for both on-road and off-road environments. The valve operates with minimal friction, thanks to its carefully machined internal components, including a high-quality elastomeric or metal-seated ball or flap mechanism that seals tightly under pressure while allowing smooth forward flow. This design minimizes wear and tear, reducing the risk of leaks or failures over extended use, making it a dependable choice for fuel lines, fuel pumps, and injection systems in vehicles ranging from performance trucks to heavy-duty machinery. Whether installed in a fuel rail, transfer line, or auxiliary fuel system, the Duke 3570-00-3 delivers consistent performance, helping to safeguard against fuel starvation, vapor lock, or air ingestion that could lead to engine misfires or stalling. Its compact yet sturdy build ensures easy integration into tight engine bays or fuel assemblies, while its universal compatibility with standard fuel line fittings such as O-rings, flanges, or threaded connections makes it a versatile upgrade for both OEM replacements and aftermarket modifications. Built to withstand the demands of high-pressure fuel delivery systems, this valve exemplifies reliability, durability, and engineering precision, making it an indispensable component for maintaining the efficiency and dependability of fuel-dependent machinery.

**Pros and Cons of buying a Duke 3570-00-3 Fuel Check Valve**

The Duke 3570-00-3 is a fuel check valve designed to prevent fuel leaks and backflow in fuel systems, particularly in applications like generators, engines, or fuel pumps. Below is a detailed analysis of its advantages and disadvantages.

---

### **Pros**

1. **Prevents Fuel Leaks and Backflow**

The primary function of a fuel check valve is to ensure one-way flow of fuel, preventing contamination or leaks when the system is off. The Duke 3570-00-3 is engineered to maintain this function reliably, reducing the risk of fuel spills or air entering the fuel line.

2. **Durable Construction**

This valve is likely made from materials like brass or stainless steel, which offer resistance to corrosion and wear. This durability extends the lifespan of the valve, making it a cost-effective long-term solution.

3. **Compatibility with Common Fuel Types**

The Duke 3570-00-03 is designed to work with standard fuel types such as gasoline, diesel, and other petroleum-based fuels. Its compatibility ensures it can be used in a variety of applications without modification.

4. **Easy Installation**

The valve is typically designed with standard fittings (e.g., NPT threads), making it straightforward to install without requiring specialized tools or expertise. This reduces labor costs and installation time.

5. **Cost-Effective for Small to Medium Systems**

Compared to more complex fuel management systems, the Duke 3570-00-3 is relatively inexpensive. It provides essential protection without the need for additional components, making it a practical choice for budget-conscious users.

6. **Reliability in Critical Applications**

In systems where fuel integrity is crucial such as generators or backup power setups the Duke valve helps maintain performance by preventing fuel starvation or contamination.

7. **Aftermarket Availability**

As a widely used part, the Duke 3570-00-3 is easy to find in aftermarket stores, online retailers, or directly from Duke Energy Products. This ensures availability even for older or less common equipment.

---

### **Cons**

1. **Limited to Basic Functionality**

The Duke 3570-00-3 is a simple check valve and does not offer advanced features like pressure regulation, fuel filtration, or electronic monitoring. If your system requires these functions, you may need additional components.

2. **Potential for Wear Over Time**

While durable, all mechanical valves are subject to wear, especially if exposed to contaminants like dirt or debris in the fuel. Regular inspection and replacement may be necessary to maintain optimal performance.

3. **Size and Flow Restrictions**

The valve s internal diameter may limit fuel flow in high-demand systems. If your application requires high fuel throughput, a larger or more specialized valve might be needed to avoid pressure drops.

4. **Dependence on Proper Installation**

If not installed correctly such as improper threading or misalignment the valve may fail to function as intended. Incorrect installation can lead to leaks or backflow, negating its purpose.

5. **Limited Brand Support for Complex Systems**

While Duke Energy Products is a reputable brand, some high-end or specialized fuel systems may require OEM (Original Equipment Manufacturer) parts. The Duke valve may not meet exact specifications for such systems.

6. **Environmental Exposure Risks**

If installed in outdoor or harsh environments, the valve may be susceptible to temperature fluctuations, moisture, or corrosion if not made from high-grade materials. Always verify the valve s suitability for your operating conditions.

7. **No Warranty on All Parts**

Like many aftermarket components, the Duke 3570-00-3 may not come with a comprehensive warranty, especially if purchased from a third-party seller. Always check the warranty terms before buying.

---

### **Conclusion**

The Duke 3570-00-3 fuel check valve is a practical and cost-effective solution for preventing fuel leaks and backflow in small to medium fuel systems. Its durability, ease of installation, and compatibility with common fuel types make it a solid choice for general applications. However, it is not a comprehensive fuel management solution and may require additional components for advanced systems.

For users seeking a reliable, no-frills check valve to protect their fuel lines, this part is well-suited. Those with high-flow requirements, complex fuel systems, or harsh operating conditions may need to supplement it with other components or consider alternative valves.

---

### **Recommendation**

**Buy the Duke 3570-00-3 if:**

- You need a simple, effective check valve for a basic fuel system (e.g., generators, small engines, or fuel pumps).

- Your system does not require advanced features like pressure regulation or filtration.

- You prioritize affordability and ease of installation over high-end specifications.

- The valve s material and size match your fuel line s requirements.

**Consider alternatives if:**

- Your system demands high fuel flow rates or precise pressure control.

- You operate in extreme environments where corrosion resistance is critical (in which case, a stainless steel or specialized valve may be better).

- You require OEM parts or additional features like electronic monitoring.

**Final Verdict:** For most standard applications, the Duke 3570-00-3 is a dependable and worthwhile purchase. Always verify compatibility with your specific fuel system and installation conditions before buying.

Details:

DUKES 3570-00-3 FUEL SYSTEM CHECK VALVE.

part #: 3570003 price

  • $95.00

specifications engineaviatio:

  • brand: Dukes
  • mpn: 3570-00-3
  • part type: Fuel Valve Check
  • compatible make: Lycoming
  • country of origin: United States

shipping engineaviatio:

  • service: USPS Priority Mail
  • type: Fixed
  • carrier: USPS
  • cost: $10.00
  • transit: 3-8 Days
  • class: Expedited

general engineaviatio:

  • Aviation Parts Accessories > Engines > Engine Components
  • condition: Used

payments engineaviatio:

  • credit card: Visa
  • cash
  • other
  • wallet: Apple-pay

seller engineaviatio:

  • # reviews: 739
  • city: El Reno, Oklahoma
  • rating: 100.0%

returns engineaviatio:

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

offer engineaviatio:

  • started: February 18, 2026
  • sold: 0
  • availability: In Stock
  • options: Ship-to-home
  • quantity: 1
part type: fuel valve check, compatible make: lycoming, country of origin: united states,
category: auto parts > aviation parts accessories > engines > engine components, sku: 8299544751061741,
Dukes 3570-00-3 Is Similar To:
engineaviatio logo
1 offer $95.00 USD
  • Used. Offer #1 priced at $95.00 + $10.00 shipping estimate = $105.00* total. +$10.00 shipping

Copyright © engineaviatio.com