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Gates 21957 Radiator Coolant Hose - Lower
| Brand | Gates 21957 |
|---|---|
| Position | Lower |
| 0 | |
| Yes | |
| Branch Quantity | 0 |
| Centerline Length | 11.9 |
| Centerline Length | 302 |
| Contains Spring | No |
| End 1 Inside Diameter | 1.27 |
| End 1 Inside Diameter | 32 |
| End 2 Inside Diameter | 1.27 |
| End 2 Inside Diameter | 32 |
| Material | EPDM |
| Modular Hose | No |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
| Product line | Molded Coolant Hose |
| Fits | Chevrolet, Oldsmobile, and Pontiac · 9 vehicles |
OEM-quality specifications. A molded coolant hose built for dependable replacement fit.
EPDM construction. Resists heat and coolant exposure for long service life.
Molded design. Matches complex hose routing without extra shaping.
Cross-references Anchor 8647, Bosch 62012 and FEL-PRO 71642 for the same application. See all 13.
Gates 21957 Molded Coolant Hose
The Gates 21957 molded coolant hose is built for lower radiator hose service on select Chevrolet, Oldsmobile, and Pontiac applications. It uses EPDM construction and OEM-style molded shaping to match the routing needed for a clean, direct replacement.
Key Features
- EPDM rubber construction for coolant system service
- Molded design for proper hose routing and fit
- 1.27 in. (32 mm) inside diameter at both ends
- 11.9 in. (302 mm) centerline length
- No spring, no branch sections, and no quick-connect fittings
- Lower radiator hose application for specific GM vehicles
Product Details
Gates Molded Coolant Hose line is engineered for upper, lower, bypass, heater, and other coolant system applications using OEM-quality specifications. Part number 21957 is a molded lower coolant hose for 1991-1993 Chevrolet Lumina, 1991-1993 Oldsmobile Cutlass Supreme, and 1991-1993 Pontiac Grand Prix. This part cross-references FEL-PRO 71642 for the same application.
For buyers searching for a 1991-1993 Chevrolet Lumina lower radiator hose, 1991-1993 Oldsmobile Cutlass Supreme coolant hose, or 1991-1993 Pontiac Grand Prix molded coolant hose, this Gates replacement provides the correct molded profile and dimensions for the listed vehicles. The Gates 21957 part number is also referenced in aftermarket interchange listings for related cooling system service.
Common Problems This Hose Can Address
- Cracked or split lower radiator hose
- Coolant leaks at the hose body
- Collapsed or softened hose material
- Poor hose routing from a non-molded replacement
- Cooling system service on aging GM vehicles
Installation Notes
Verify hose routing, end diameters, and centerline length against the removed part before installation. Inspect hose clamps, necks, and adjoining cooling system components for wear or corrosion, and replace any damaged parts before refilling the system. Confirm the hose is seated fully and routed without twist or contact points.
Quality Assurance
Gates molded coolant hoses are manufactured to OEM-quality specifications for direct-fit cooling system replacement. The EPDM construction and molded shape are selected to match the demands of radiator hose service on the listed Chevrolet, Oldsmobile, and Pontiac applications.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1993 | Chevrolet | Lumina | 3.4L | V6 | GAS | Lower | Molded Coolant Hose |
| 1993 | Oldsmobile | Cutlass Supreme | 3.4L | V6 | GAS | Lower | Molded Coolant Hose |
| 1993 | Pontiac | Grand Prix | 3.4L | V6 | GAS | Lower | Molded Coolant Hose |
| 1992 | Chevrolet | Lumina | 3.4L | V6 | GAS | Lower | Molded Coolant Hose |
| 1992 | Oldsmobile | Cutlass Supreme | 3.4L | V6 | GAS | Lower | Molded Coolant Hose |
| 1992 | Pontiac | Grand Prix | 3.4L | V6 | GAS | Lower | Molded Coolant Hose |
| 1991 | Chevrolet | Lumina | 3.4L | V6 | GAS | Lower | Molded Coolant Hose |
| 1991 | Oldsmobile | Cutlass Supreme | 3.4L | V6 | GAS | Lower | Molded Coolant Hose |
| 1991 | Pontiac | Grand Prix | 3.4L | V6 | GAS | Lower | Molded Coolant Hose |
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