
Product Overview
This high-quality Fan Blade Pulley Bracket is engineered for Cummins 4BT and 6BT series diesel engines, a cornerstone of reliability in construction, industrial, and generator applications worldwide. As a leading supplier in the global heavy machinery parts market, we ensure this critical cooling system component meets the demands of professional operations across North America, Europe, the Middle East, and the Asia-Pacific region.
Key Features & Benefits
- Precision Engineered: Manufactured to exact OEM specifications for a perfect fit and optimal alignment of the fan and pulley assembly.
- Robust Construction: Fabricated from high-grade steel or cast iron (subject to specific OEM design) to withstand constant vibration and thermal stress.
- Ensures Cooling Efficiency: Maintains proper tension and alignment of the fan belt, which is crucial for consistent coolant flow and preventing engine overheating.
- Enhanced Durability: Designed for long service life under demanding operating conditions, reducing downtime and maintenance frequency.
- Direct Replacement: A direct bolt-on component that restores original engine performance and reliability.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Type | Fan Blade Pulley Bracket / Support |
| Compatible Engine Models | Cummins 4BT, Cummins 6BT |
| Primary Application | Engine Cooling System |
| Material | High-Strength Steel / Cast Iron (OEM Equivalent) |
| Surface Treatment | Anti-Corrosion Coating |
| Condition | New, Aftermarket Replacement |
OEM Cross-Reference
This component is designed to replace the original Cummins bracket. For precise identification, please cross-reference with your engine’s specific configuration. Common related part numbers for the fan drive assembly include (but are not limited to) series within the 3900000 range. We recommend verifying the bracket number from your failed part or engine service manual.
Compatibility
Engine Models: This pulley bracket is specifically designed for the Cummins B-Series engines, including:
- Cummins 4BT3.9 (3.9L 4-cylinder)
- Cummins 6BT5.9 (5.9L 6-cylinder)
Typical Applications: These engines are widely used in:
- Excavators & Construction Machinery: Various models from Komatsu, Case, Bobcat, and others.
- Industrial Generators & Power Units
- Agricultural Equipment
- Medium-Duty Trucks & Buses
Global Supply & Distribution
We specialize in the international export of heavy-duty engine components. Our logistics network ensures reliable shipping to key industrial hubs worldwide.
- Major Markets Served: United States, Canada, United Kingdom, Germany, Australia, UAE, Saudi Arabia, South Africa, Singapore, and Japan.
- Efficient Logistics: We ship via air and sea freight to all major ports and airports, offering flexible solutions (FOB, CIF, DAP) to suit your supply chain needs.
- Trade Compliance: All documentation (Commercial Invoice, Packing List, Certificate of Origin) is provided for smooth customs clearance.
Quality Assurance
Every component in our catalog is sourced from ISO-certified manufacturers committed to quality.
- Manufacturing Standard: Produced to meet or exceed original equipment specifications for dimensions, material, and performance.
- Rigorous Inspection: Each part undergoes dimensional checks and visual inspection to ensure defect-free delivery.
- Warranty: Backed by a standard warranty against manufacturing defects. Contact us for specific warranty terms.
FAQ
Q1: How do I confirm this bracket will fit my specific Cummins 6BT engine?
A1: The most reliable method is to compare the physical dimensions and bolt pattern with your original bracket. Providing the engine’s full model number, serial number, or a photo of the old part will allow us to verify compatibility before purchase.
Q2: Is the fan pulley included with this bracket?
A2: No, this listing is specifically for the Fan Blade Pulley Bracket (the mounting support). The fan pulley, fan blade, and belt are typically separate components. Please review our catalog for a complete cooling system assembly.
Q3: What torque specifications should be used during installation?
A3: Always refer to the official Cummins service manual (e.g., Bulletin 3810340) for the correct bolt torque sequence and values. Proper torque is critical to prevent bracket failure, misalignment, or damage to the engine block threads. Generally, bracket mounting bolts require a significant torque, often in the range of 50-70 ft-lbs, but this must be verified for your specific application.
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 .