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

The first step to replace the Radiator of a 4.3l engine begins with draining the cooling system. The first task involves moving the Radiator clamp on the coolant recovery hose and disconnecting the hose through its reservoir. Radiator inlet hose clamp relocation and hose removal is accomplished using the hose clamp pliers (J 38185). After removing the Fan Shroud you will reposition the Radiator outlet hose clamp with hose clamp pliers (J 38185). Take out engine oil cooler lines together with transmission oil cooler lines from the Radiator as the last step to extract the Radiator. The first step for installation is to inspect the rubber mounts prior to inserting the new Radiator. Affix first the new transmission oil cooler lines and engine oil cooler line onto the Radiator before adding the Radiator outlet hose. You must use hose clamp pliers (J 38185) to adjust the Radiator outlet hose clamp position and afterward secure the Fan Shroud followed by the Radiator inlet hose before readjusting the Radiator inlet hose clamp through hose clamp pliers (J 38185). After connecting the coolant recovery reservoir hose you should reposition its clamp before beginning the cooling system filling process.

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 Questions & Experts Answers

Radiator
15120548
Q: How to replace the radiator on a 4.3L engine on Chevrolet Blazer?
A:
The first step to replace the Radiator of a 4.3l engine begins with draining the cooling system. The first task involves moving the Radiator clamp on the coolant recovery hose and disconnecting the hose through its reservoir. Radiator inlet hose clamp relocation and hose removal is accomplished using the hose clamp pliers (J 38185). After removing the Fan Shroud you will reposition the Radiator outlet hose clamp with hose clamp pliers (J 38185). Take out engine oil cooler lines together with transmission oil cooler lines from the Radiator as the last step to extract the Radiator. The first step for installation is to inspect the rubber mounts prior to inserting the new Radiator. Affix first the new transmission oil cooler lines and engine oil cooler line onto the Radiator before adding the Radiator outlet hose. You must use hose clamp pliers (J 38185) to adjust the Radiator outlet hose clamp position and afterward secure the Fan Shroud followed by the Radiator inlet hose before readjusting the Radiator inlet hose clamp through hose clamp pliers (J 38185). After connecting the coolant recovery reservoir hose you should reposition its clamp before beginning the cooling system filling process.