Product Overview

This high-performance exhaust manifold is a precision-engineered OEM replacement part designed specifically for Cummins QSL9 diesel engines. As a leading supplier in the global heavy-duty automotive aftermarket, we provide reliable parts with direct shipping to major industrial hubs across North America, Europe, the Middle East, and Asia-Pacific. This component is essential for maintaining optimal exhaust flow and engine efficiency in demanding applications.

Key Features & Benefits

• Direct OEM Replacement: Manufactured to exact OEM specifications (OEM Size) for a perfect fit and seamless installation, ensuring no downtime for your equipment.
• Enhanced Durability: Constructed from high-grade materials to withstand extreme temperatures and thermal cycling common in diesel engine operation, promoting long service life.
• Optimized Exhaust Flow: Designed to minimize exhaust backpressure, which helps maintain engine power, improve fuel efficiency, and reduce emissions.
• Rigorous Quality Control: Each unit undergoes thorough inspection, supported by machinery test reports and video outgoing-inspection records to guarantee performance and integrity.
• Cost-Effective Solution: Offers a significant price advantage compared to dealer networks, providing substantial savings for fleets and repair shops without compromising on quality.

Technical Specifications

OEM Cross-Reference

This part serves as a direct replacement for the following OEM number:

• Cummins: 3943841

Note: Always verify the part number stamped on your original component before ordering to ensure correct fitment.

Compatibility

This exhaust manifold is engineered for Cummins QSL9 diesel engines. These engines are commonly found in a wide range of heavy-duty machinery and vehicles, including but not limited to:

• Earthmoving & Construction: Excavators, Loaders, Bulldozers
• Transport & Logistics: Trucks, Buses
• Material Handling: Forklifts
• Other Industrial Applications: Generators, Pumps, and more

Global Supply & Distribution

We specialize in the international export of heavy-duty engine components. Our streamlined logistics network ensures efficient delivery to key markets worldwide:

• Major Markets Served: North America (USA, Canada, Mexico), European Union, United Kingdom, Australia, Southeast Asia, Middle East, and Africa.
• Fast Port Delivery: We prioritize shipments to major international ports such as Los Angeles, Rotterdam, Singapore, Dubai, and Sydney for rapid clearance and onward distribution.
• Export Compliance: All shipments are prepared with complete commercial invoices, packing lists, and comply with international trade regulations for a smooth customs process.

Quality Assurance

Our commitment to quality ensures you receive a reliable product that meets the demands of professional use.

• Manufacturing Standards: Produced in ISO-certified facilities using precision casting and machining processes.
• Comprehensive Warranty: Backed by a 6-month warranty against manufacturing defects.
• Stringent Testing: Every batch is subject to material analysis, dimensional checks, and pressure testing. Documentation is available upon request to verify quality.

FAQ

Q: How can I be sure this manifold will fit my Cummins QSL9 engine?
A: This part is manufactured to the exact OEM specifications and dimensions of part number 3943841. We recommend comparing this number to the one on your original manifold or consulting your engine’s service manual for absolute confirmation.

Q: What is included with the product, and are gaskets required?
A> This listing is for the exhaust manifold as a single item. New exhaust manifold gaskets and fasteners are typically required for a proper installation and are recommended to prevent exhaust leaks. These are often sold separately.

Q: Do you provide technical support for installation?
A> While we supply the component, installation should be performed by a qualified technician familiar with diesel engine systems. We can provide general specifications and documentation that accompanies the part, but detailed mechanical guidance should be sourced from official Cummins service literature.

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 .