
Product Overview
This is a premium quality OEM replacement Downcomer (Part Number: 1241702), engineered specifically for Caterpillar E330B diesel engines. As a leading global supplier of heavy-duty engine components, we provide reliable parts for construction, industrial, agricultural, and marine applications worldwide. Our products are shipped directly from our manufacturing hub in Guangdong, China, to major markets across North America, Europe, the Middle East, and the Asia-Pacific region, ensuring timely delivery to support your operations.
Key Features & Benefits
- OEM-Spec Quality: Manufactured to exact original equipment specifications, ensuring perfect fit, form, and function for the Caterpillar E330B engine.
- Enhanced Durability: Constructed from high-grade materials designed to withstand extreme temperatures and pressures within the diesel engine exhaust system.
- Optimized Engine Performance: Ensures efficient exhaust gas flow, contributing to maintained engine power, fuel efficiency, and reduced backpressure.
- Rigorous Quality Control: Each part undergoes stringent inspection and testing, backed by a machinery test report and video outgoing-inspection for your verification.
- Global Logistics Support: Packaged securely in plastic bag, box, and carton for safe international shipping and easy handling upon arrival.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 1241702 |
| Part Name | Downcomer |
| Compatible Engine Model | Caterpillar E330B |
| Engine Type | Diesel |
| Weight | 2 kg |
| Place of Origin | Guangdong, China |
| Size | OEM Standard Size |
| Packing | Plastic Bag, Box, Carton |
| Warranty | 6 Months |
OEM Cross-Reference
This part is a direct replacement for the following OEM number:
- Caterpillar: 1241702
Note: OEM service for custom specifications is available upon request.
Compatibility
This downcomer is designed for use with the following engine model:
- Primary Application: Caterpillar E330B Diesel Engine
Industry Applications: This critical engine component is suitable for machinery powered by the E330B engine across multiple sectors, including Construction Equipment, Industrial Power Units, Agricultural Machinery, Generator Sets (Gensets), Marine Vessels, and Material Handling Equipment.
Global Supply & Distribution
We specialize in the international export of high-quality engine components. Our established supply chain ensures efficient delivery to key industrial and port cities worldwide.
- Major Markets Served: North America (USA, Canada, Mexico), European Union (Germany, UK, Poland, Netherlands), Asia-Pacific (Australia, Singapore, Japan), Middle East (UAE, Saudi Arabia), and South America.
- Fast Delivery: We offer consolidated sea freight and expedited air freight options to major global hubs like Los Angeles, Rotterdam, Singapore, and Dubai.
- Export Expertise: All documentation, including commercial invoices, packing lists, and certificates of origin, is prepared to full international trade compliance standards for smooth customs clearance.
Quality Assurance
Our commitment to quality ensures you receive a reliable and long-lasting product.
- Manufacturing Standards: Produced in ISO-certified facilities using precision tooling and quality-controlled materials.
- Comprehensive Warranty: Backed by a solid 6-month warranty against manufacturing defects.
- Testing & Inspection: Every batch undergoes functional and dimensional checks. A machinery test report and video record of the outgoing inspection are provided to guarantee the part meets specified performance criteria before shipment.
FAQ
Q: How can I confirm this downcomer will fit my Caterpillar E330B engine?
A: This part is a direct replacement for OEM number 1241702. For absolute certainty, we recommend comparing the physical dimensions and bolt pattern with your original component or providing your engine’s serial number for our technical team to verify.
Q: What is included in the quality documentation?
A: With your shipment, you can request the machinery test report, which details the part’s conformance to specifications. We also provide a video outgoing-inspection, offering visual proof of the part’s condition and key measurements before packing.
Q: Do you offer support for bulk orders for large-scale maintenance projects?
A: Yes. We specialize in B2B supply and can accommodate bulk orders with competitive pricing. We also offer OEM services for custom requirements. Please contact our sales team to discuss volume discounts, production lead times, and tailored logistics solutions for your project.
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 .