Product Overview

This high-performance electronic solenoid valve is a direct replacement for Caterpillar 320D excavators and diesel truck applications. Manufactured to OEM specifications, this component ensures reliable hydraulic and fuel system control. We serve a global B2B clientele, with regular shipments to North America, Europe, Southeast Asia, the Middle East, and Australia, ensuring fast delivery to major industrial hubs and ports.

Key Features & Benefits

• Precision Engineering: Manufactured to standard size specifications for a perfect, hassle-free fitment.
• Enhanced Durability: Built with high-quality materials to withstand the harsh conditions of diesel engine operation.
• Reliable Performance: Ensures accurate electronic control of fluid flow, optimizing engine efficiency and response.
• Direct Replacement: Designed as a direct OE replacement for part numbers 321-5620 and 312-5620.
• Cost-Effective Solution: Provides a premium quality alternative to the original manufacturer’s part, reducing downtime costs.

Technical Specifications

OEM Cross-Reference

This solenoid valve is a direct replacement for the following OEM numbers:

• OEM No. 1: 321-5620
• OEM No. 2: 312-5620

Compatibility

• Excavator Models: Caterpillar 320D series.
• Vehicle Applications: Compatible with diesel trucks and heavy equipment utilizing the same solenoid valve specifications.
• Engine Type: Diesel engines requiring electronic valve control.

Global Supply & Distribution

We are a professional supplier based in Shandong, China, with extensive experience in international trade. Our logistics network supports worldwide shipping via DHL, UPS, FEDEX, EMS, and TNT. We serve major markets including North America, Europe, Asia-Pacific, the Middle East, and South America. Our standard delivery time is 3-30 working days, ensuring your operations stay on schedule.

Quality Assurance

• Manufacturing Standards: Produced in a certified facility with strict quality control measures.
• Warranty: Comes with a 4-month warranty against manufacturing defects.
• Testing: Each unit is tested for performance and seal integrity before shipment.
• Quality Grade: Rated as “Excellent” to ensure long service life.

FAQ

Q: Is this solenoid valve a direct fit for my Cat 320D excavator?
A: Yes, this part is designed as a direct replacement for the original 321-5620 and 312-5620 valves. It meets standard size specifications and is ready for installation without modifications.

Q: What is the typical installation procedure?
A: Installation should be performed by a qualified technician. Ensure the engine is off and the hydraulic system is depressurized. Remove the old valve, clean the mounting surface, install the new valve with the correct O-rings, and torque to manufacturer specifications.

Q: How should I maintain this solenoid valve for optimal performance?
A: Regularly inspect the electrical connector for corrosion and ensure the hydraulic fluid is clean and at the correct level. Avoid exposing the valve to excessive moisture or physical impact. Following the machine’s standard maintenance schedule will maximize the valve’s lifespan.

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 .