How to replace the radiator on a 4.3L engine on Chevrolet Blazer?

Engine maintenance starts with draining coolant from the system and moving the coolant recovery hose clamp to another position on the Radiator. Use hose clamp pliers (J 38185) to move the Radiator inlet hose clamp and remove the Radiator inlet hose afterwards. Move onto the Radiator outlet hose using hose clamp pliers (J 38185) to reposition its clamp before finally removing the hose. Start by removing the engine oil cooler lines along with transmission oil cooler lines from the Radiator followed by Radiator removal. A thorough examination of the rubber mounts should precede new Radiator installation. Lay the new Radiator into place before installing the transmission oil cooler lines and the engine oil cooler line. Use hose clamp pliers (J 38185) to place the Radiator outlet hose clamp before reattaching the hose. The new Fan Shroud receives installation followed by attaching the Radiator inlet hose to which you fasten the hose clamppliers (J 38185). To finish the installation you should connect the coolant recovery reservoir hose and reposition its clamp before filling the cooling system.

OEM Chevrolet Blazer Radiator

Cooling Radiator

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Chevrolet Blazer Radiator Part Number: 89019344
$446.42 MSRP: $670.29
You Save: $223.87 (34%)
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Product Specifications
- Other Name: Radiator Assembly; Radiator, Radiator
- Replaces: 52469470, 52491626, 89019179, 52477782, 52469467, 52467218
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994 Chevrolet Blazer | Base, Silverado, Silverado Sport | 8 Cyl 5.7 L GAS
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Chevrolet Blazer Radiator Part Number: 85557761
$126.35 MSRP: $188.86
You Save: $62.51 (34%)
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Product Specifications
- Other Name: Radiator, Radiator
- Replaces: 84672581
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2024 Chevrolet Blazer | LT, Premier, RS | 4 Cyl 2.0 L GAS
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Chevrolet Blazer Radiator Part Number: 85557760
$277.11 MSRP: $414.23
You Save: $137.12 (34%)
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Product Specifications
- Other Name: Radiator, Radiator
- Replaced by: 85797937
- Replaces: 84168786, 84664114, 23138762
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2024 Chevrolet Blazer | Base, L, LT, Premier, RS | 4 Cyl 2.5 L GAS, 6 Cyl 3.6 L GAS
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Chevrolet Blazer Radiator Part Number: 52491623
Product Specifications
- Other Name: Radiator Assembly; Radiator, Radiator
- Replaces: 52469469, 52463931, 52457843, 52467212, 52467244, 52467240, 52467208, 03095794, 3095794, 52467213, 52469465, 52467209, 52469432
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1994 Chevrolet Blazer | Base, Cheyenne, Silverado, Silverado Sport | 8 Cyl 5.7 L GAS
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Chevrolet Blazer Radiator Part Number: 89018624
$298.81 MSRP: $446.65
You Save: $147.84 (34%)
Product Specifications
- Other Name: Radiator Assembly; Radiator, Radiator
- Replaces: 52467214, 52477774, 52469437, 52491622, 52469669, 52477776
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994 Chevrolet Blazer | Base, Silverado, Silverado Sport | 8 Cyl 6.5 L DIESEL
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Chevrolet Blazer Radiator Part Number: 15120548
$243.61 MSRP: $364.13
You Save: $120.52 (34%)
Product Specifications
- Other Name: Radiator, Radiator
- Replaces: 15120549, 52472963, 52472964
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2005 Chevrolet Blazer | Base, LS, LT, Trailblazer, Xtreme, ZR2 | 6 Cyl 4.3 L GAS
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Chevrolet Blazer Radiator Part Number: 52480057
Product Specifications
- Other Name: Radiator Assembly; Radiator, Radiator
- Replaces: 03058992, 3058992
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1990, 1987 Chevrolet Blazer | Custom Deluxe, Scottsdale, Silverado | 8 Cyl 6.2 L DIESEL
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Chevrolet Blazer Radiator Part Number: 52479539
Product Specifications
- Other Name: Radiator, Radiator
- Replaces: 03037433, 03091023, 3049171, 52452856, 52457644, 52481612, 3042777, 52492959, 3091023, 3037433, 52457637
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1991 Chevrolet Blazer | Custom Deluxe, Scottsdale, Silverado | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
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Chevrolet Blazer Radiator Part Number: 52478818
Product Specifications
- Other Name: Radiator, Radiator
- Replaces: 03095798, 52465214, 3095798, 52458925, 52458930, 52465217
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1994 Chevrolet Blazer | Base, Cheyenne, Silverado, Silverado Sport | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
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Chevrolet Blazer Radiator Part Number: 52462548
Product Specifications
- Other Name: Radiator, Radiator
- Replaces: 52462549
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1995-1996 Chevrolet Blazer | Base, LT | 6 Cyl 4.3 L GAS

Chevrolet Blazer Radiator

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Chevrolet Blazer Radiator is part of the car's cooling system with the primary function of rejecting heat from the engine to the atmosphere. It serves the purpose of heat exchanger where it takes heat from the coolant of the engine to the flow of air passing through it. The majority of radiators in Blazer vehicles are made of aluminum core with plastic/aluminum tank, or solely aluminum; nevertheless, some copper/brass radiators are employed. The radiator is placed in the front region of the car where it is accessible to fresh air from the car grille to enable heat exchange. Some of the problems with the car radiator are leakage of the fluid or clogging of the system, which if not corrected could cause overheating of the automobile. It is highly advisable that the radiator be checked frequently mostly for servicing to avoid situations where the car engine fails.

Chevrolet Blazer Radiator Parts and Q&A

Radiator
15120548
Q: How to replace the radiator on a 4.3L engine on Chevrolet Blazer?
A:
Engine maintenance starts with draining coolant from the system and moving the coolant recovery hose clamp to another position on the Radiator. Use hose clamp pliers (J 38185) to move the Radiator inlet hose clamp and remove the Radiator inlet hose afterwards. Move onto the Radiator outlet hose using hose clamp pliers (J 38185) to reposition its clamp before finally removing the hose. Start by removing the engine oil cooler lines along with transmission oil cooler lines from the Radiator followed by Radiator removal. A thorough examination of the rubber mounts should precede new Radiator installation. Lay the new Radiator into place before installing the transmission oil cooler lines and the engine oil cooler line. Use hose clamp pliers (J 38185) to place the Radiator outlet hose clamp before reattaching the hose. The new Fan Shroud receives installation followed by attaching the Radiator inlet hose to which you fasten the hose clamppliers (J 38185). To finish the installation you should connect the coolant recovery reservoir hose and reposition its clamp before filling the cooling system.