How to replace the coolant reservoir on Chevrolet Blazer?

To change coolant recovery reservoir, one must, then, remove the PCM without disconnecting the wiring harness. Use Hose Clamp Pliers (J 38185) to reposition the hose clamps, and then pull the hose away from the coolant recovery reserve. Next, extract the retaining nuts from the reservoir and remove the latter itself, draining all the coolant. For installation, the new coolant recovery reservoir must be installed with the retaining nuts torqued 8 - 11 Nm (6 - 8 ft. lbs.) while meticulously aligning themselves with the Fastener Notice in Service Precautions. Attach the hose to the reservoir, relocate the hose clamp with Hose Clamp Pliers (J 38185), and reinstall the PCM. Finally, top up with coolant in the reservoir.

OEM Chevrolet Blazer Coolant Reservoir

Coolant Tank Reservoir

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Chevrolet Blazer Expansion Tank Part Number: 23386455
$48.26 MSRP: $71.82
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Product Specifications
- Other Name: Container, Heater Coolant Tank; Engine Coolant Reservoir; Coolant Reservoir; Reservoir Tank; Cap; Reservoir; Tank, Engine Coolant Recovery
- 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 2.0 L GAS, 4 Cyl 2.5 L GAS, 6 Cyl 3.6 L GAS
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Chevrolet Blazer Recovery Tank Part Number: 15678943
Product Specifications
- Other Name: Container, Heater Coolant Tank; Coolant Reservoir; Tank; Reservoir; Tank, Engine Coolant Recovery
- Replaces: 15997683
- 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 Recovery Tank Part Number: 15075570
Product Specifications
- Other Name: Reservoir, Coolant Recovery; Coolant Reservoir; Reservoir Assembly; Reservoir, Engine Coolant Recovery
- Replaces: 15990479
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1995-2005 Chevrolet Blazer | Base, LS, LT, Trailblazer, Xtreme, ZR2 | 6 Cyl 4.3 L GAS
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Chevrolet Blazer Recovery Tank Part Number: 15650373
Product Specifications
- Other Name: Reservoir, Coolant Recovery; Engine Coolant Reservoir; Coolant Reservoir; Reservoir; Reservoir, Engine Coolant Recovery
- 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 Recovery Tank Part Number: 15531514
Product Specifications
- Other Name: Reservoir, Engine Coolant Recovery; Coolant Reservoir
- 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 Reservoir Tank Part Number: 12380436
Product Specifications
- Other Name: Reservoir, Coolant Recovery; Coolant Reservoir; Recovery Tank; Reservoir, Engine Coolant Recovery
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1995 Chevrolet Blazer | Base, LT | 6 Cyl 4.3 L GAS
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Chevrolet Blazer Reservoir Tank Part Number: 12380202
Product Specifications
- Other Name: Reservoir, Coolant Recovery; Coolant Reservoir; Recovery Tank; Reservoir, Engine Coolant Recovery
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1995-2000 Chevrolet Blazer | Base, LS, LT, Trailblazer | 6 Cyl 4.3 L GAS

Chevrolet Blazer Coolant Reservoir

Want to cut long-term maintenance and repair costs? Choose OEM Coolant Reservoir. Those parts deliver top durability you can trust. On our site, you'll find a huge catalog of genuine Chevrolet Blazer parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM Chevrolet Blazer Coolant Reservoir includes a manufacturer's warranty. You can also get an easy return policy that keeps buying risk free. Fast delivery, get your car on the road quickly. It's simple to search, compare, and order. Stop guessing about quality or fit. Order today and save with parts that last.

The Coolant Reservoir of Chevrolet Blazer vehicles is an important component in the engine cooling system meant to minimize instances of coolant seeping while at the same time keeping out air. It helps conserve the coolant level and protect other parts of the cooling system from rusting and corroting. There are two main types of Coolant Reservoirs used in Blazer vehicles: of the two; overflow tank systems and expansion tank systems. The overflow system only has the pressure cap on the radiator and a simple plastic cap on the tank; the expansion system has the pressure cap on the tank and is made of thicker, reinforced plastic. Coolant Reservoir should also be inspected for cracks, leaks and any forms of deterioration and this should be done often.

Chevrolet Blazer Coolant Reservoir Parts Questions & Experts Answers

Recovery Tank
15075570
Q: How to replace the coolant reservoir on Chevrolet Blazer?
A:
To change coolant recovery reservoir, one must, then, remove the PCM without disconnecting the wiring harness. Use Hose Clamp Pliers (J 38185) to reposition the hose clamps, and then pull the hose away from the coolant recovery reserve. Next, extract the retaining nuts from the reservoir and remove the latter itself, draining all the coolant. For installation, the new coolant recovery reservoir must be installed with the retaining nuts torqued 8 - 11 Nm (6 - 8 ft. lbs.) while meticulously aligning themselves with the Fastener Notice in Service Precautions. Attach the hose to the reservoir, relocate the hose clamp with Hose Clamp Pliers (J 38185), and reinstall the PCM. Finally, top up with coolant in the reservoir.