PRODUCT_TITLE: MW Pump Plunger 090150-5971 High Speed Steel Diesel Fuel Injection Element for Replacement/Repair PRODUCT_TAGS: 090150-5971, 5971, MW Series, Diesel Fuel Pump, Plunger Element PRODUCT_CONTEXT:

Product Overview

This high-quality MW series pump plunger, OEM number 090150-5971 (also known as 5971), is a precision-engineered component designed for the repair and replacement of diesel fuel injection pumps. Manufactured from premium high-speed steel in Shandong, China, this plunger element ensures reliable fuel metering and long service life for diesel engines. We serve a global B2B clientele across North America, Europe, Asia-Pacific, and the Middle East, offering fast shipping and competitive wholesale pricing.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM specifications for a perfect fit and optimal fuel injection performance.
• Superior Durability: Made from high-speed steel (HSS) to resist wear, corrosion, and high-pressure fatigue, extending pump service intervals.
• 100% Professional Testing: Each plunger is individually tested for dimensional accuracy, surface finish, and hydraulic performance to ensure zero defects.
• Reliable Replacement: Ideal for repairing MW series injection pumps, restoring engine power, fuel efficiency, and reducing emissions.
• Immediate Availability: Low minimum order quantity (MOQ of 6 pcs) with fast 3-7 day delivery for stock replenishment.

Technical Specifications

OEM Cross-Reference

• Primary OEM: 090150-5971
• Common Reference: 5971

This part is a direct replacement for the specific MW series pump plunger identified by the OEM number 090150-5971. Please verify your existing part number to ensure compatibility.

Compatibility

• Engine Type: Diesel Engines
• Pump Series: MW (MW Series Injection Pumps)
• Vehicle Fitment: Designed for diesel cars and light commercial vehicles utilizing MW-type fuel injection pumps.

Typical applications include various diesel engines from Asian and European manufacturers that specify the MW pump series.

Global Supply & Distribution

We are an experienced exporter based in Shandong, China, specializing in B2B shipments of diesel engine components. Our logistics network supports:

• Worldwide Shipping: Reliable delivery to major ports and industrial hubs globally.
• Key Markets: Extensive supply to North America, Europe, Southeast Asia, the Middle East, Africa, and South America.
• Fast Turnaround: Orders processed and shipped within 3-7 working days via air or sea freight.
• Trade Compliance: Full documentation for international customs clearance.

Quality Assurance

• Manufacturing Standard: Produced in a certified facility with strict quality control processes.
• Testing: Each unit undergoes 100% professional testing for dimensional and performance criteria.
• Warranty: Backed by a 1-year warranty against manufacturing defects.

FAQ

Q1: How do I confirm this plunger fits my pump?

Please verify the OEM number printed on your existing plunger or pump housing. The number 090150-5971 is the direct cross-reference for this MW series part. If your part number matches, it is a direct fit.

Q2: What is the recommended installation procedure?

Installation should be performed by a qualified diesel technician. The plunger must be handled with clean hands and tools to avoid contamination. Ensure the pump barrel is clean and lubricated with diesel fuel or assembly oil before installation. Torque specifications for the pump head must be followed precisely.

Q3: What maintenance is required for this plunger?

This is a wear item designed for long service life when using clean, high-quality diesel fuel. Regularly replace fuel filters and drain water separators to prevent contamination. If you experience hard starting, loss of power, or fuel leaks, inspect the plunger and barrel assembly for wear.

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 .