Product Overview

This high-quality Fuel Common Rail Pressure Limiting Valve (OEM 1110010020 / 1110010021) is a critical component designed for the diesel fuel injection system of Dongfeng Cummins engines. As a direct replacement for the original pressure relief valve, it ensures the precise regulation of fuel rail pressure, protecting the injectors and pump from over-pressure damage. Sourced from a professional manufacturer in Shandong, China, this part is available for global B2B distribution, serving major markets in North America, Europe, Southeast Asia, the Middle East, and Africa.

Key Features & Benefits

• Precision Engineering: Manufactured to meet or exceed OEM specifications for exact fit and reliable performance.
• Durable Construction: Made from high-grade steel to withstand high-pressure diesel environments and resist corrosion.
• System Protection: Effectively limits fuel rail pressure to prevent damage to the Common Rail, injectors, and high-pressure pump.
• Improved Engine Stability: Ensures consistent fuel pressure for smoother engine operation and reduced emissions.
• Cost-Effective Solution: A high-quality aftermarket alternative to expensive dealer parts, offering excellent value for fleet maintenance.

Technical Specifications

OEM Cross-Reference

This pressure limiting valve is a direct replacement for the following OEM part numbers:

• 1110010020
• 1110010021

Note: Always verify your existing part number before ordering. This part is designed for specific Cummins/Dongfeng common rail systems.

Compatibility

• Engine Make: Dongfeng Cummins
• Engine Type: Diesel Engines (ISDe, ISLe, ISBe series and compatible models)
• Application: Fits heavy-duty trucks, buses, construction machinery, and agricultural equipment equipped with compatible Cummins common rail fuel systems.

Global Supply & Distribution

We are a dedicated supplier of diesel engine parts with a strong focus on international B2B trade. Our logistics network supports:

• Worldwide Shipping: Reliable delivery to North America, South America, Europe, Southeast Asia, the Middle East, Africa, and Oceania.
• Major Ports: Fast shipping via sea to ports like Shanghai, Qingdao, Ningbo, and air freight to major international hubs.
• Flexible Quantities: MOQ of 50 pcs, with options for bulk orders and customized packaging (Neutral or OEM branding).
• Trade Compliance: Experienced in export documentation and customs clearance.

Quality Assurance

• Manufacturing Standards: Produced in a certified facility with strict quality control processes.
• Testing: Each valve is pressure-tested to ensure reliable opening and closing performance.
• Warranty: Backed by a 4-month warranty against manufacturing defects.

FAQ

Q: What is the function of this pressure limiting valve?

A: This valve is installed on the common rail. Its primary function is to act as a safety device. If the fuel pressure in the rail exceeds the system’s maximum limit, the valve opens to relieve the excess pressure, preventing damage to the injectors and the high-pressure pump. It reseals once the pressure normalizes.

Q: How do I know if this valve fits my engine?

A: Please verify the part number on your existing valve. It should match 1110010020 or 1110010021. This valve is specifically designed for Dongfeng Cummins diesel engines with a common rail fuel system. If you are unsure, please contact us with your engine model and serial number for confirmation.

Q: Is installation difficult? Do I need special tools?

A: Installation requires basic mechanical knowledge and standard tools. However, as this component is part of the high-pressure fuel system, it is recommended to have it installed by a qualified diesel mechanic to ensure proper torque and sealing. The system must be depressurized before removal.

Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.

2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.

3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.

4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.

5. Scientific ERP system, easy and fast to locate the parts that customer needs.

6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.

Exhibition

Packing&Shipping

1.  Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).

2.  Once we get confirmation of payment, we will ship products in 2 days.

3.  Our packaging is standard export wooden box or others as your requirement.

4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ

Q1. What is your company major products?

A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.

Q2.What is the MOQ?

A: Normally we can supply any quantity if we have in stock.

Q3. What is your payment term ?

A: We accept Western Union, T/T, Paypal.

Q4. What is the packing ?

A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.

Q5. When can you deliver products after payment ?

A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .

Q6. What can you do to complete order perfectly ?

A: In the beginning , We will communicate with clients in details to understand what they need .

Before packing , We will check the products and send photos to clients .After confirmation ,

We will packing products well to avoid damage . Once we get tracking number ,

We will send it to customer and keep contact in with clients .