How to inspect and replace radiator and heater hoses?

Inspect all upper and lower radiator hoses as well as heater hoses for signs of decay, leaks or loose hose clamps at every 15,000 miles (24,000 km) or as part of the seasonal maintenance in early spring or late autumn to early winter due to weakened hoses that may cause sudden failures. Be sure that the engine and cooling system are cold before looking at it. Look to see if there are any cracks, rotting or collapsing of the hoses, if so replace them with new ones. Look along the length of the hose for any weak spots where they might be swollen; these indicate that it is time to change them out. When you are replacing the hoses, be careful not to damage the necks as you take them off. If a hose will not come off easily, do not use sharp tools; rather make an accurate crosswise cut through its stuck portion and lift the hose away from it. Clean up connections on all hoses inspect and replace clamps as necessary. To fit slide clamps onto your hose ends dip these in clean engine coolant, fit hose ends onto connections then secure clamps at least four inches from each end of the hose. Close drains, refill cooling system with a suitable coolant mixture and check for leaks using a pressure tester or by running engine to normal operating temperature and inspecting for leaks around hose fittings and connections.

Genuine Cadillac Eldorado Radiator Hose

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7 Radiator Hoses found

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Cadillac Eldorado Radiator Coolant Outlet Hose (Lower)
Part Number: 3521237
$29.17 MSRP: $39.53
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Product Specifications
- Other Name: Hose, Radiator Outlet (Lower); Lower Hose, Upper Hose
- Position: Lower
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1986-1993 Cadillac Eldorado | COMMERCIAL CHASSIS, ELDORADO | 8 Cyl 4.1L, 8 Cyl 4.5L, 8 Cyl 4.9L
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Cadillac Eldorado Radiator Inlet Hose (Upper)
Part Number: 25700766
Product Specifications
- Other Name: Hose,Radiator Inlet; Upper Hose
- Position: Upper
- Replaces: 25688318, 3521504, 03521504
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1993-2000 Cadillac Eldorado | COMMERCIAL CHASSIS, ELDORADO | 8 Cyl 4.6L
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Cadillac Eldorado Hose
Part Number: 1629764
Product Specifications
- Other Name: Upper Hose
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1986-1987 Cadillac Eldorado | COMMERCIAL CHASSIS, ELDORADO | 8 Cyl 4.1L
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Cadillac Eldorado Radiator Inlet Hose (Upper)
Part Number: 25698928
Product Specifications
- Other Name: Hose, Radiator Inlet; Upper Hose
- Position: Upper
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2002 Cadillac Eldorado | ELDORADO | 8 Cyl 4.6L
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Cadillac Eldorado Radiator Coolant Inlet Hose (Upper)
Part Number: 3521235
Product Specifications
- Other Name: Hose, Radiator Inlet (Upper); Upper Hose
- Position: Upper
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1993 Cadillac Eldorado | COMMERCIAL CHASSIS, ELDORADO | 8 Cyl 4.5L, 8 Cyl 4.9L
View related parts
Cadillac Eldorado Radiator Outlet Hose (Lower)
Part Number: 25640429
Product Specifications
- Other Name: Hose,Radiator Outlet; Lower Hose
- Position: Lower
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2002 Cadillac Eldorado | ELDORADO | 8 Cyl 4.6L
View related parts
Cadillac Eldorado Radiator Outlet Hose
Part Number: 3521505
Product Specifications
- Other Name: Hose, Radiator Outlet; Lower Hose
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1993-1995 Cadillac Eldorado | COMMERCIAL CHASSIS, ELDORADO | 8 Cyl 4.6L

Cadillac Eldorado Radiator Hose Parts Questions & Experts Answers

Radiator Coolant Inlet Hose (Upper)
3521235
Q: How to inspect and replace radiator and heater hoses?
A: Inspect all upper and lower radiator hoses as well as heater hoses for signs of decay, leaks or loose hose clamps at every 15,000 miles (24,000 km) or as part of the seasonal maintenance in early spring or late autumn to early winter due to weakened hoses that may cause sudden failures. Be sure that the engine and cooling system are cold before looking at it. Look to see if there are any cracks, rotting or collapsing of the hoses, if so replace them with new ones. Look along the length of the hose for any weak spots where they might be swollen; these indicate that it is time to change them out. When you are replacing the hoses, be careful not to damage the necks as you take them off. If a hose will not come off easily, do not use sharp tools; rather make an accurate crosswise cut through its stuck portion and lift the hose away from it. Clean up connections on all hoses inspect and replace clamps as necessary. To fit slide clamps onto your hose ends dip these in clean engine coolant, fit hose ends onto connections then secure clamps at least four inches from each end of the hose. Close drains, refill cooling system with a suitable coolant mixture and check for leaks using a pressure tester or by running engine to normal operating temperature and inspecting for leaks around hose fittings and connections.