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Gates 19737 HVAC Heater Hose
| Brand | Gates 19737 |
|---|---|
| Position | Heater To Valve |
| 0 | |
| Yes | |
| Branch Quantity | 0 |
| Centerline Length | 7.7 |
| Centerline Length | 196 |
| Centerline Length (in) | 7.7 |
| Centerline Length (mm) | 196 |
| End 1 Inside Diameter | .72 |
| End 1 Inside Diameter | 18 |
| End 2 Inside Diameter | .72 |
| End 2 Inside Diameter | 18 |
| Material | EPDM |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
| Product line | Molded Heater Hose |
| Fits | Chevrolet, Pontiac, Oldsmobile, and GMC · 48 vehicles |
OEM-style molded hose. Factory-molded for a precise, original-equipment fit.
EPDM construction. Resists heat and coolant for dependable hose performance.
Versatile application. Suitable for coolant, water, air, and marine use.
Cross-references Gates 19737, Unity Automotive 11737 and 14324S for the same application. See all 8.
Gates Molded Heater Hose 19737
Gates 19737 is a molded HVAC heater hose built for tight engine bays where a factory-shaped coolant hose is needed for a clean, direct routing path. It is made from EPDM and uses an OEM-style molded design for reliable fitment in heater, coolant, water, and air applications.
Key Features
- EPDM construction for heater and coolant service
- Factory-molded shape for smaller, tighter-fitting engine compartments
- End I.D. of 18 mm (.72 in) at both ends
- Centerline length of 196 mm (7.7 in)
- Approved for marine applications
- Gates Molded Heater Hose product line for OE-style routing
Product Details
This molded heater hose is built to match the routing needs of vehicles that use a formed hose between the heater circuit and related coolant connections. Gates 19737 is a direct-fit style hose for applications such as the 2000-2002 Chevrolet Cavalier, 2000-2002 Pontiac Sunfire, 1999-2001 Oldsmobile Alero, and 1999-2001 Pontiac Grand Am, along with select Chevrolet G10, G20, G30 and GMC G1500, G2500, G3500 applications. The molded profile helps maintain proper hose routing in compact engine compartments while supporting coolant, water, and air transfer.
This part cross-references Unity Automotive 11737 for the same application.
Common Problems This Hose Can Address
- Cracked or leaking heater hose connections
- Collapsed or softened hose sections from heat and age
- Poor hose routing in tight engine compartments
- Restricted coolant flow through a damaged molded hose
- Service replacement for worn heater-to-valve or valve-to-heater routing
Installation Notes and Tips
Verify end diameters, centerline length, and routing before installation. Match the vehicle position exactly, such as heater to valve, valve to heater, valve to radiator, heater outlet, or auxiliary heater pipe-2 to radiator, depending on the application. Inspect adjoining clamps, fittings, and coolant passages for wear or contamination before installing the new hose. Confirm the hose follows the original molded path to avoid kinks or contact with hot or moving components.
Quality Assurance
Gates manufactures this hose as an OEM-style molded replacement for the listed applications. The EPDM construction and formed profile are intended to support dependable heater and coolant service in the specified vehicle fitments.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2002 | Chevrolet | Cavalier | 2.4L | L4 | GAS | Heater To Valve | Molded Heater Hose |
| 2002 | Chevrolet | Cavalier | 2.4L | L4 | GAS | Valve To Heater | Molded Heater Hose |
| 2002 | Pontiac | Sunfire | 2.4L | L4 | GAS | Heater To Valve | Molded Heater Hose |
| 2002 | Pontiac | Sunfire | 2.4L | L4 | GAS | Valve To Heater | Molded Heater Hose |
| 2001 | Chevrolet | Cavalier | 2.4L | L4 | GAS | Heater To Valve | Molded Heater Hose |
| 2001 | Chevrolet | Cavalier | 2.4L | L4 | GAS | Valve To Heater | Molded Heater Hose |
| 2001 | Oldsmobile | Alero | 2.4L | L4 | GAS | Valve To Heater | Molded Heater Hose |
| 2001 | Pontiac | Grand Am | 2.4L | L4 | GAS | Valve To Heater | Molded Heater Hose |
| 2001 | Pontiac | Sunfire | 2.4L | L4 | GAS | Heater To Valve | Molded Heater Hose |
| 2001 | Pontiac | Sunfire | 2.4L | L4 | GAS | Valve To Heater | Molded Heater Hose |
| 2000 | Chevrolet | Cavalier | 2.4L | L4 | GAS | Heater To Valve | Molded Heater Hose |
| 2000 | Chevrolet | Cavalier | 2.4L | L4 | GAS | Valve To Heater | Molded Heater Hose |
| 2000 | Oldsmobile | Alero | 2.4L | L4 | GAS | Valve To Heater | Molded Heater Hose |
| 2000 | Pontiac | Grand Am | 2.4L | L4 | GAS | Valve To Heater | Molded Heater Hose |
| 2000 | Pontiac | Sunfire | 2.4L | L4 | GAS | Heater To Valve | Molded Heater Hose |
| 2000 | Pontiac | Sunfire | 2.4L | L4 | GAS | Valve To Heater | Molded Heater Hose |
| 1999 | Oldsmobile | Alero | 2.4L | L4 | GAS | Valve To Heater | Molded Heater Hose |
| 1999 | Pontiac | Grand Am | 2.4L | L4 | GAS | Valve To Heater | Molded Heater Hose |
| 1994 | Chevrolet | G10 | 4.3L | V6 | GAS | Valve To Radiator | W/A.C.; W/O Aux. Heater; W/O Rec. Pkg.; Molded Heater Hose |
| 1994 | Chevrolet | G10 | 5.0L | V8 | GAS | Heater Outlet | W/A.C.; W/O Aux. Heater; Molded Heater Hose |
| 1994 | Chevrolet | G20 | 4.3L | V6 | GAS | Valve To Radiator | W/A.C.; W/O Aux. Heater; W/O Rec. Pkg.; Molded Heater Hose |
| 1994 | Chevrolet | G20 | 5.0L | V8 | GAS | Heater Outlet | W/A.C.; W/O Aux. Heater; Molded Heater Hose |
| 1994 | Chevrolet | G20 | 5.7L | V8 | GAS | Heater Outlet | W/A.C.; W/O Aux. Heater; Molded Heater Hose |
| 1994 | Chevrolet | G30 | 4.3L | V6 | GAS | Valve To Radiator | W/A.C.; W/O Aux. Heater; W/O Rec. Pkg.; Molded Heater Hose |
| 1994 | Chevrolet | G30 | 5.7L | V8 | GAS | Heater Outlet | W/A.C.; W/O Aux. Heater; Molded Heater Hose |
| 1994 | GMC | G1500 | 4.3L | V6 | GAS | Valve To Radiator | W/A.C.; W/O Aux. Heater; W/O Rec. Pkg.; Molded Heater Hose |
| 1994 | GMC | G1500 | 5.0L | V8 | GAS | Heater Outlet | W/A.C.; W/O Aux. Heater; Molded Heater Hose |
| 1994 | GMC | G2500 | 4.3L | V6 | GAS | Valve To Radiator | W/A.C.; W/O Aux. Heater; W/O Rec. Pkg.; Molded Heater Hose |
| 1994 | GMC | G2500 | 5.0L | V8 | GAS | Heater Outlet | W/A.C.; W/O Aux. Heater; Molded Heater Hose |
| 1994 | GMC | G2500 | 5.7L | V8 | GAS | Heater Outlet | W/A.C.; W/O Aux. Heater; Molded Heater Hose |
| 1994 | GMC | G3500 | 4.3L | V6 | GAS | Valve To Radiator | W/A.C.; W/O Aux. Heater; W/O Rec. Pkg.; Molded Heater Hose |
| 1994 | GMC | G3500 | 5.7L | V8 | GAS | Heater Outlet | W/A.C.; W/O Aux. Heater; Molded Heater Hose |
| 1992 | Chevrolet | G10 | 4.3L | V6 | GAS | Auxiliary Heater Pipe-2 To Radiator | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose |
| 1992 | Chevrolet | G10 | 5.0L | V8 | GAS | Auxiliary Heater Pipe-2 To Radiator | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose |
| 1992 | Chevrolet | G10 | 5.7L | V8 | GAS | Auxiliary Heater Pipe-2 To Radiator | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose |
| 1992 | Chevrolet | G20 | 4.3L | V6 | GAS | Auxiliary Heater Pipe-2 To Radiator | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose |
| 1992 | Chevrolet | G20 | 5.0L | V8 | GAS | Auxiliary Heater Pipe-2 To Radiator | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose |
| 1992 | Chevrolet | G20 | 5.7L | V8 | GAS | Auxiliary Heater Pipe-2 To Radiator | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose |
| 1992 | Chevrolet | G30 | 4.3L | V6 | GAS | Auxiliary Heater Pipe-2 To Radiator | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose |
| 1992 | Chevrolet | G30 | 5.7L | V8 | GAS | Auxiliary Heater Pipe-2 To Radiator | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose |
| 1992 | GMC | G1500 | 4.3L | V6 | GAS | Auxiliary Heater Pipe-2 To Radiator | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose |
| 1992 | GMC | G1500 | 5.0L | V8 | GAS | Auxiliary Heater Pipe-2 To Radiator | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose |
| 1992 | GMC | G1500 | 5.7L | V8 | GAS | Auxiliary Heater Pipe-2 To Radiator | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose |
| 1992 | GMC | G2500 | 4.3L | V6 | GAS | Auxiliary Heater Pipe-2 To Radiator | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose |
| 1992 | GMC | G2500 | 5.0L | V8 | GAS | Auxiliary Heater Pipe-2 To Radiator | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose |
| 1992 | GMC | G2500 | 5.7L | V8 | GAS | Auxiliary Heater Pipe-2 To Radiator | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose |
| 1992 | GMC | G3500 | 4.3L | V6 | GAS | Auxiliary Heater Pipe-2 To Radiator | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose |
| 1992 | GMC | G3500 | 5.7L | V8 | GAS | Auxiliary Heater Pipe-2 To Radiator | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose |
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