Product Overview

This is a premium replacement Valve Guide, part number 4900331, engineered for Cummins M11 and QSM11 series diesel engines. As a leading global supplier of heavy-duty engine components, we provide reliable parts for commercial fleets, construction machinery, and industrial equipment worldwide. Our products are trusted in major markets across North America, Europe, the Middle East, and Asia-Pacific, ensuring your operations stay running with genuine-quality components.

Key Features & Benefits

• Precision Engineered: Manufactured to exact OEM dimensions and tolerances for a perfect fit and optimal valve alignment, ensuring proper engine compression and performance.
• Enhanced Durability: Made from high-grade materials designed to withstand extreme temperatures and continuous operation, reducing wear on valve stems and extending service intervals.
• Guaranteed Compatibility: Direct replacement for the specified Cummins engine models, eliminating guesswork and ensuring reliable engine restoration.
• Quality Assured: Each part undergoes rigorous inspection and testing, supported by a comprehensive warranty and full documentation.
• Global Logistics Ready: Expertly packed for secure international shipping, with efficient supply chains to major industrial hubs and ports.

Technical Specifications

OEM Cross-Reference

This part is a direct replacement for the following OEM number:

• Cummins: 4900331

Please verify your engine’s serial number or existing part for absolute compatibility. Our technical team can assist with cross-referencing.

Compatibility

Compatible Engine Models: Cummins M11, Cummins QSM11.

Vehicle & Machinery Application: This valve guide is suitable for a wide range of equipment powered by the above engines, including but not limited to:

• Heavy-Duty Trucks & Buses
• Excavators, Loaders, and Bulldozers
• Forklifts and Material Handling Equipment
• Industrial Generators and Stationary Power Units

Global Supply & Distribution

We specialize in the international export of heavy-duty engine components. Our streamlined logistics network ensures reliable and cost-effective shipping to key industrial regions:

• Major Markets Served: North America (USA, Canada, Mexico), European Union, United Kingdom, Australia, Middle East (UAE, Saudi Arabia), Southeast Asia, and South America.
• Fast Delivery: Consolidated shipments to major ports like Los Angeles, Rotterdam, Singapore, and Jebel Ali, with reliable inland forwarding options.
• Export Expertise: Fully compliant with international trade regulations. We provide all necessary commercial documentation (Invoice, Packing List, CO if required) for smooth customs clearance.

Quality Assurance

We are committed to supplying parts that meet the highest standards of performance and reliability.

• Manufacturing Standards: Produced in ISO-certified facilities using precision machinery to ensure dimensional accuracy and material integrity.
• Warranty: Backed by a 6-Month Warranty from the date of purchase against manufacturing defects.
• Testing & Inspection: Every batch undergoes thorough machinery testing. A detailed Machinery Test Report is available. Furthermore, Video Outgoing-Inspection is provided to verify quality and packaging before shipment.

FAQ

Q: How do I confirm this valve guide will fit my specific Cummins M11 engine?
A: The primary fitment is confirmed by the Cummins part number 4900331. We recommend checking your engine’s serial number plate or the part number on your existing, worn valve guide. For complex applications, our technical support can assist with verification using your engine’s CPL (Critical Parts List) or ESN (Engine Serial Number).

Q: What is the typical installation procedure for this valve guide?
A: Installation requires specialized engine repair knowledge and tools. The cylinder head must be removed. The old guide is pressed out and the new one is pressed in, often requiring reaming to the final specified inner diameter for the valve stem. Proper valve seat re-cutting and lapping are also usually required. We recommend installation by a certified diesel mechanic.

Q: Do you provide documentation for customs and quality verification?
A> Yes. With every order, we provide full commercial documentation. Upon request, we can supply the Machinery Test Report and the Video Outgoing-Inspection footage as proof of quality and conformity before the goods are shipped.

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 .