
Product Overview
This high-precision oil nozzle (part number 3687058) is engineered for the Cummins QSX15 diesel engine, a cornerstone of heavy-duty industrial and commercial machinery. Manufactured to stringent OEM specifications, this component is essential for maintaining optimal fuel atomization, combustion efficiency, and engine performance. We supply this critical repair part globally, with established logistics to major markets including North America, Europe, the Middle East, and Asia-Pacific, ensuring reliable support for fleet operators and equipment service centers worldwide.
Key Features & Benefits
- Precision Engineering: Manufactured to exact OEM dimensions and tolerances for a perfect fit and reliable performance, ensuring proper fuel spray pattern and pressure.
- Enhanced Durability: Constructed from high-grade materials to withstand the extreme pressures and temperatures within a diesel combustion chamber, offering excellent wear resistance.
- Optimized Combustion: Restores factory-level fuel atomization, leading to complete combustion, improved engine power output, and reduced emissions.
- Cost-Effective Maintenance: A direct replacement part that helps avoid costly downtime by providing a reliable solution for engine overhaul and repair projects.
- Quality Assured: Backed by a 6-month warranty and supported by machinery test reports and video outgoing-inspection documentation.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 3687058 |
| Type | Oil Nozzle / Fuel Injector Nozzle |
| Engine Model | Cummins QSX15 |
| Engine Type | Diesel |
| Size | OEM Standard Size |
| Weight | Approx. 1 kg |
| Warranty | 6 Months |
| Packing | Plastic Bag, Box, Carton |
| Place of Origin | Guangdong, China |
OEM Cross-Reference
This part is a direct replacement for the following OEM number:
- Cummins: 3687058
Note: Always verify part number compatibility with your specific engine serial number before purchase.
Compatibility
This oil nozzle is designed specifically for the Cummins QSX15 diesel engine. This engine platform is widely used in a diverse range of heavy equipment and vehicles, including but not limited to:
- Construction Machinery: Excavators, Wheel Loaders, Bulldozers
- Material Handling: Forklifts, Container Handlers
- Commercial Vehicles: Heavy-Duty Trucks, Buses, Dump Trucks
- Industrial & Generator Sets: Stationary power units
Global Supply & Distribution
We are a professional exporter of heavy-duty engine components with extensive experience in international B2B trade. Our streamlined supply chain ensures efficient delivery to key industrial regions globally.
- Worldwide Shipping: We ship to all major markets, including North America (USA, Canada, Mexico), Europe (UK, Germany, Netherlands, Poland), the Middle East (UAE, Saudi Arabia), Asia-Pacific (Australia, Singapore, Japan), and South America.
- Fast Logistics: Consolidated shipments and partnerships with leading freight forwarders enable cost-effective and timely delivery to major ports and inland logistics hubs.
- Trade Compliance: All documentation (commercial invoice, packing list, certificate of origin) is provided to ensure smooth customs clearance.
Quality Assurance
Every component is subject to a rigorous quality control process to meet the demands of the global aftermarket.
- Manufacturing Standards: Produced in ISO-certified facilities using advanced CNC machining and precision grinding techniques.
- Comprehensive Warranty: Protected by a full 6-month warranty against manufacturing defects.
- Testing & Inspection: Each batch undergoes functional checks. A machinery test report and video outgoing-inspection are available to provide transparency and verify quality prior to shipment.
FAQ
Q: How do I confirm this part (3687058) is compatible with my specific QSX15 engine?
A: While this nozzle is designed for the QSX15 platform, we strongly recommend cross-referencing the part number with your engine’s specific service manual or serial number breakdown. Differences in engine build dates or sub-models can occasionally affect part compatibility.
Q: What is included with the oil nozzle, and is installation straightforward?
A> The part is supplied as a single item, packaged securely to prevent damage. Installation is a precision task that requires proper tools, cleanliness, and often involves setting specific injection pressures. We recommend installation by a qualified diesel technician to ensure optimal performance and avoid engine damage.
Q: Do you provide technical support or documentation for this part?
A> Yes. Along with the product, we can provide the machinery test report for the batch. For specific installation torque values or service procedures, please consult the official Cummins QSX15 service manual, as these are proprietary technical data.
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 .