Product Overview

This is a high-performance 50 Bar Hydraulic Main Pump Pressure Sensor designed for Hyundai excavator engines. Engineered for precision and durability, it is a critical component for maintaining optimal hydraulic system pressure and ensuring efficient machine operation. We supply this part globally to major markets including North America, Europe, the Middle East, and Asia-Pacific, supporting construction and mining industries worldwide.

Key Features & Benefits

• Precision Engineered: Manufactured to exact OEM specifications for accurate pressure monitoring and reliable performance.
• Robust Construction: Built to withstand the harsh operating conditions of heavy-duty diesel engines and hydraulic systems.
• Ensures System Efficiency: Accurate pressure feedback helps maintain optimal hydraulic pump performance, reducing strain on the engine and improving fuel economy.
• Direct OEM Replacement: Designed as a direct fit for seamless installation without modifications.
• Quality Assured: Each unit undergoes rigorous testing to ensure it meets performance and durability standards.

Technical Specifications

OEM Cross-Reference

This sensor is a direct replacement for the following OEM part numbers. It is also compatible with several alternative numbers used in different regions and part catalogs.

• 31Q4-40620 (Primary Reference)
• 31Q8-40520
• 31Q4-40830

Compatibility

This hydraulic pressure sensor is compatible with a wide range of Hyundai excavator models utilizing the specified engine series. Always verify your machine’s model and serial number for final confirmation.

• Compatible Excavator Models: R55, R60, R80, R125, R140, R145, R160, R170, R180, R210, R220, R235, R250
• Application: Fits the hydraulic main pump on the diesel engines powering these machines.

Global Supply & Distribution

We are a trusted global supplier of heavy machinery engine parts with extensive export experience. Our logistics network ensures reliable and timely delivery to key industrial hubs and ports worldwide.

• Worldwide Shipping: We ship to North America, Europe, Asia-Pacific, the Middle East, Africa, and South America.
• Fast Delivery: Consolidated shipments to major ports ensure faster clearance and delivery to your warehouse or job site.
• Trade Compliance: All documentation is prepared in accordance with international trade regulations for smooth customs processing.
• B2B Focus: We specialize in supplying wholesalers, distributors, and large-scale fleet operators.

Quality Assurance

We are committed to providing parts that meet the high demands of the construction industry. Our quality process is designed to deliver reliability you can count on.

• Manufacturing Standards: Produced using quality materials and precise manufacturing techniques to match OEM fit and function.
• Warranty: Backed by a 6-month warranty from the date of purchase against manufacturing defects.
• Testing & Inspection: Units are subject to functional testing. A machinery test report and video outgoing-inspection are available to verify quality before shipment.
• After-Sales Support: Comprehensive online technical support is available after the warranty period.

FAQ

Q1: How can I confirm this sensor is compatible with my specific Hyundai excavator?
A1: First, identify your machine’s exact model (e.g., R170LC-9) and locate the existing pressure sensor. Cross-reference the part number stamped on your old sensor with our listed OEM numbers (31Q4-40620, 31Q8-40520, 31Q4-40830). For absolute certainty, provide your machine’s model and serial number to our technical support team.

Q2: What documentation and support come with the part?
A2: Each order includes standard commercial documentation (invoice, packing list, certificate of origin). Upon request, we can provide the machinery test report and a video of the outgoing inspection for your quality records. Post-installation technical support is available online.

Q3: Is this a genuine OEM part or an aftermarket replacement?
A3: This is a high-quality aftermarket replacement part manufactured to OEM specifications. It offers equivalent performance and durability as the genuine part at a competitive price, and our OEM service ensures it meets the required standards for fit and function. The part is sold as a single unit, packaged securely for international shipping.

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 .