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Gates 23499 Radiator Coolant Hose - Upper
| Brand | Gates 23499 |
|---|---|
| Position | Upper |
| Material | Epdm |
| End 1 Inside Diameter | 1.77 |
| End 1 Inside Diameter | 45 |
| End 2 Inside Diameter | 1.77 |
| End 2 Inside Diameter | 45 |
| Contains Spring | No |
| Centerline Length | 19.9 |
| Centerline Length | 505 |
| Branch Quantity | 0 |
| 9839 | Yes |
| 9845 | 0 |
| Modular Hose | No |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
| Product line | Molded Coolant Hose |
| Fits | Chevrolet and GMC · 8 vehicles |
OEM-quality specifications. Built for radiator hose replacement with a molded design.
EPDM construction. Resists heat and coolant exposure for dependable performance.
Molded coolant hose line. Part of Gates' comprehensive replacement range.
Cross-references Bosch 67165, Gates 23499 and 16235 for the same application. See all 5.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Gates 23499 Molded Coolant Hose
Gates 23499 is a molded radiator coolant hose built for upper coolant routing on select heavy-duty Chevrolet and GMC trucks. It uses EPDM construction and OEM-style molded dimensions to match the original hose shape and fitment requirements.
Key Features
- EPDM rubber construction for coolant system service
- Molded design for the upper radiator hose application
- 1.77 in. inside diameter at both ends
- 19.9 in. centerline length
- No spring, no modular sections, and no quick-connect fittings
- Direct replacement style for OE hose routing
Product Details
Part number 23499 is part of Gates’ Molded Coolant Hose line, a product range focused on replacement hoses shaped for upper, lower, bypass, heater, and other coolant system applications. This hose is engineered to follow the original routing and dimensions needed for a proper radiator hose replacement on 2009-2010 Chevrolet Silverado 2500 HD, 2009-2010 Chevrolet Silverado 3500 HD, 2009-2010 GMC Sierra 2500 HD, and 2009-2010 GMC Sierra 3500 HD. If you are searching for a molded upper radiator coolant hose for Silverado HD or Sierra HD trucks, Gates 23499 is a direct-fit service part for those listed applications.
This part cross-references Bosch 67165 for the same application.
What It Helps Address
- Cracked or aged upper radiator hose material
- Coolant leaks at the hose body from heat cycling
- Incorrect hose shape after prior replacement
- Fitment issues caused by non-molded universal hose routing
- Service delays when replacing an OE-style upper coolant hose
Installation Notes and Tips
Verify the vehicle year, make, model, and upper hose routing before installation. Compare the original hose shape, end diameters, and centerline length to confirm the replacement matches the factory layout. Inspect hose clamps, necks, and adjacent cooling system components for wear or corrosion before reassembly.
Quality Assurance
Gates manufactures molded coolant hoses to OEM-quality specifications for listed coolant applications. The 23499 hose is built to support a factory-style replacement on the confirmed Chevrolet Silverado HD and GMC Sierra HD fitments.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2010 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | DIESEL | Upper | Molded Coolant Hose |
| 2010 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | DIESEL | Upper | Molded Coolant Hose |
| 2010 | GMC | Sierra 2500 HD | 6.6L | V8 | DIESEL | Upper | Molded Coolant Hose |
| 2010 | GMC | Sierra 3500 HD | 6.6L | V8 | DIESEL | Upper | Molded Coolant Hose |
| 2009 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | DIESEL | Upper | Molded Coolant Hose |
| 2009 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | DIESEL | Upper | Molded Coolant Hose |
| 2009 | GMC | Sierra 2500 HD | 6.6L | V8 | DIESEL | Upper | Molded Coolant Hose |
| 2009 | GMC | Sierra 3500 HD | 6.6L | V8 | DIESEL | Upper | Molded Coolant Hose |
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