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Gates 18487 HVAC Heater Hose - Engine To Heater (Lower)
| Brand | Gates 18487 |
|---|---|
| Position | Engine To Heater (Lower) |
| 0 | |
| Yes | |
| Branch Quantity | 0 |
| Centerline Length | 23.9 |
| Centerline Length | 607 |
| Centerline Length (in) | 23.9 |
| Centerline Length (mm) | 607 |
| End 1 Inside Diameter | .5 |
| End 1 Inside Diameter | 13 |
| End 2 Inside Diameter | .5 |
| End 2 Inside Diameter | 13 |
| Material | EPDM |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
| Product line | Molded Heater Hose |
| Fits | Buick · 3 vehicles |
Factory-molded OEM style. Fits like the original hose for a clean, direct replacement.
EPDM construction. Resists heat and coolant for dependable hose performance.
Versatile hose use. Suitable for coolant, water, air, and marine applications.
Cross-references CSF 10487, Davico Mfg 18487 and Dayco 87321 for the same application. See all 6.
Gates 18487 Molded Heater Hose Overview
The Gates 18487 molded heater hose is an OEM-style coolant hose built for tight engine bays where a straight hose will not route correctly. It is formed to match the factory shape and is made from EPDM for use in coolant, water, and air applications, with marine application approval noted by the manufacturer.
Compatible with 2006-2008 Buick Lucerne, Engine To Heater (Lower), this molded heater hose supports the lower heater circuit routing used in the vehicle’s heating system. The Gates Molded Heater Hose line focuses on factory-shaped replacement hoses for smaller, tighter-fitting engine compartments.
Key Features
- Part number: 18487
- Factory-molded, OEM-style hose shape
- EPDM construction for coolant, water, and air service
- Small I.D. design for tighter engine compartment routing
- End 1 inside diameter: 0.5 in. (13 mm)
- End 2 inside diameter: 0.5 in. (13 mm)
- Centerline length: 23.9 in. (607 mm)
- Molded hose configuration for lower heater hose routing
Product Details
Gates 18487 is a molded heater hose engineered to follow the original routing path in applications that require a formed hose rather than a universal straight section. Its EPDM material supports heat and fluid exposure commonly found in HVAC and cooling-system service. This part cross-references Dayco 87321 for the same application.
For 2006-2008 Buick Lucerne lower heater hose service, the molded profile helps maintain proper routing through the engine-to-heater path while matching the compact packaging found in modern engine compartments. The Gates 18487 is also listed under related interchange numbers including 10487 and 18487.
Common Uses
- Replacing a cracked or softened lower heater hose
- Restoring coolant flow between the engine and heater core circuit
- Correcting hose routing in a tight engine compartment
- Addressing leaks at a molded hose section
- Replacing a hose that no longer holds its factory shape
Installation Notes
Verify the hose routing, end diameters, and centerline length before installation. Confirm the application as Fits 2006-2008 Buick Lucerne, Engine To Heater (Lower) and compare the original hose shape to the molded profile of the Gates 18487. Inspect adjoining fittings, clamps, and mating surfaces for wear or corrosion before installing the replacement hose.
Quality Assurance
Gates manufactures this molded heater hose as an OEM-style replacement built for factory routing and material compatibility in HVAC and coolant service applications.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2008 | Buick | Lucerne | 3.8L | V6 | GAS | Engine To Heater (Lower) | Molded Heater Hose |
| 2007 | Buick | Lucerne | 3.8L | V6 | GAS | Engine To Heater (Lower) | Molded Heater Hose |
| 2006 | Buick | Lucerne | 3.8L | V6 | GAS | Engine To Heater (Lower) | Molded Heater Hose |
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