Genuine Ford ML3Z-8260-H Upper Radiator Hose Assembly
Product Overview
The Genuine Ford ML3Z-8260-H is an OEM Upper Radiator Hose Assembly, a critical component in the cooling system of Ford Super Duty trucks equipped with the 6.7L Power Stroke diesel engine. This precision-engineered hose connects the engine's thermostat housing to the radiator, directing hot coolant from the engine to be cooled before returning to maintain optimal operating temperature. Diesel engines place exceptional demands on cooling system components, requiring robust construction and exact fit.
This genuine Ford replacement is designed to meet the rigorous demands of diesel applications, providing superior durability and reliable performance under heavy towing and extreme operating conditions.
Key Features & Benefits
Genuine Ford OEM Quality: Manufactured to Ford's exacting standards for fit, material durability, and performance under severe duty conditions.
Diesel-Duty Construction: Engineered with reinforced materials to withstand higher pressures, temperatures, and vibration levels characteristic of diesel engines.
Precision Molded Design: Formed to exact contours to navigate around diesel-specific components and maintain proper clearance.
Heat & Pressure Resistant: Designed to resist degradation from constant exposure to hot coolant, engine heat, and system pressure fluctuations.
Direct Replacement: Simple installation restores cooling system integrity for reliable operation.
Technical Specifications
| Specification Category | Details |
| Part Name | Upper Radiator Hose Assembly |
| Manufacturer | Genuine Ford |
| Part Number | ML3Z-8260-H |
| Condition | New |
| Position | Upper Radiator (Thermostat to Radiator) |
| Material | Reinforced EPDM Rubber with Fabric Reinforcement |
Vehicle Fitment & Compatibility
This radiator hose is specifically designed for Ford Super Duty trucks with the 6.7L Power Stroke diesel engine.
Primary Compatible Applications:
| Model | Model Years | Engine | Notes |
| Ford F-250 Super Duty | 2017-2022 | 6.7L Power Stroke V8 Diesel | All trims |
| Ford F-350 Super Duty | 2017-2022 | 6.7L Power Stroke V8 Diesel | All trims |
| Ford F-450 Super Duty | 2017-2022 | 6.7L Power Stroke V8 Diesel | |
| Ford F-550 Super Duty | 2017-2022 | 6.7L Power Stroke V8 Diesel |
Critical Fitment Note: Cooling system components can vary by production date and engine code. Always verify fitment using your vehicle's 17-character VIN number before purchase.
Installation Notes & Symptoms of Failure
Common Symptoms of a Failing Upper Radiator Hose:
Visible Coolant Leaks: Puddles under front of vehicle or wetness along hose
Bulging or Soft Spots: Indicates internal degradation and impending failure
Engine Overheating: Temperature gauge rises, especially under load
Low Coolant Warning: Frequent need to add coolant
Steam from Engine Bay: Visible steam indicates active leak
Coolant Odor: Sweet smell indicates small leak
Installation Advisory:
Allow engine to cool completely before servicing
Replace coolant with factory-specified type (Motorcraft VC-13-D or equivalent)
Properly bleed cooling system after installation to remove air pockets
Inspect lower radiator hose and heater hoses during replacement
Professional installation recommended for diesel applications
Frequently Asked Questions (FAQ)
Q: Is this the same as ML3Z-8063-B?
A: Both are upper radiator hoses for Super Duty trucks, but they may serve different engine configurations or production periods. VIN verification is essential to determine the correct part for your vehicle.
Q: How often should cooling system hoses be replaced on diesel trucks?
A: For heavy-duty diesel applications, inspection is recommended every 60,000 miles. Replacement is typically advised at 100,000-120,000 miles as preventative maintenance, especially for vehicles used in towing or commercial service.
Q: Can I use a universal hose on my Power Stroke?
A: No. The 6.7L Power Stroke requires precise routing with specific bends to clear diesel-specific components. A universal hose cannot provide the exact fit required for this application.
Q: Are you a factory or a trading company?
A: We are a manufacturing factory (NINGBO JIATIAN AUTOMOBILE PIPE CO., LTD.) with IATF 16949 certification. This means we produce the parts ourselves, ensuring quality control and competitive pricing.
Q: Do you offer samples for quality verification?
A: Yes, we encourage potential partners to test our product quality. Samples are available for a modest cost. Contact us to arrange a sample order.
Q: What is your Minimum Order Quantity (MOQ)?
A: We offer flexible MOQs to support new business. For this standard OE part, the MOQ can be as low as 50 pieces. Custom parts may have different requirements.
Q: What is your typical lead time for production and shipment?
A: For this specific part, we can often ship sample or small orders within 7-10 days. For larger production runs, the standard lead time is 30-35 days after order confirmation and deposit receipt.
Call to Actio
Ensure your Super Duty's cooling system reliability with a genuine Ford radiator hose.
Contact us today for competitive pricing, availability, and VIN-based fitment verification for part ML3Z-8260-H.
