Cadillac STS Coolant Reservoirs
Your Cadillac STS will be happy to know that the search for the right Coolant Reservoirs you’ve been looking for is over! Advance Auto Parts has 1 different Coolant Reservoirs for your vehicle, ready for shipping or in-store pick up. The best part is, our Cadillac STS Coolant Reservoirs start from as little as $62.99.
When it comes to your Cadillac STS, you want parts and products from only trusted brands. Here at Advance Auto Parts, we work with only top reliable Coolant Reservoirs brands so you can shop with complete confidence. Some of our top Coolant Reservoirs brands are Dorman. We’re sure you will get the right product to keep that STS running for a long time.
We even have reviews of our OEM and aftermarket Coolant Reservoirs products to help you buy with confidence. Hear from other customers via the 15 reviews on parts for your Cadillac STS.
Shop online, find the best price on the right product, and have it shipped right to your door. If you prefer to shop in person for the right Coolant Reservoirs for your STS, visit one of our local Advance Auto Parts locations and you’ll be back on the road in no time!
Compare 23 Cadillac Coolant Reservoirs
Dorman – Pressurized Coolant Reservoir: Black; Clear, Plastic, Original Equipment Replacement (Part No.603-973)
from
$63.99
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.
Product Features:
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Product Features:
- Direct replacement – this engine coolant reservoir matches the fit and function of the original part
- Ideal solution – engineered for a seamless installation
- Durable construction – manufactured from quality materials to withstand underhood heat and vibration
- Trustworthy design – backed by 100 years of automotive aftermarket experience
Dorman – Pressurized Coolant Reservoir: Black And White, Plastic, Original Equipment Replacement (Part No.603-236)
from
$126.99
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.
Product Features:
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Product Features:
- Direct replacement – this engine coolant reservoir matches the fit and function of the original part
- Ideal solution – engineered for a seamless installation
- Durable construction – manufactured from quality materials to withstand underhood heat and vibration
- Trustworthy design – backed by 100 years of automotive aftermarket experience
Dorman – Pressurized Coolant Reservoir: Clear, Plastic, Original Equipment Replacement (Part No.603-102)
from
$71.99
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.
Product Features:
See More
Product Features:
- Direct replacement – this engine coolant reservoir matches the fit and function of the original part
- Ideal solution – engineered for a seamless installation
- Durable construction – manufactured from quality materials to withstand underhood heat and vibration
- Trustworthy design – backed by 100 years of automotive aftermarket experience
Dorman – Pressurized Coolant Reservoir: Black And White, Plastic, Original Equipment Replacement (Part No.603-054)
from
$51.99
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.
Product Features:
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Product Features:
- Direct replacement – this engine coolant reservoir matches the fit and function of the original part
- Ideal solution – engineered for a seamless installation
- Durable construction – manufactured from quality materials to withstand underhood heat and vibration
- Trustworthy design – backed by 100 years of automotive aftermarket experience
Dorman – Non-Pressurized Coolant Reservoir: White, Plastic, Original Equipment Replacement (Part No.603-100)
from
$28.49
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.
Product Features:
See More
Product Features:
- Direct replacement – this engine coolant reservoir matches the fit and function of the original part
- Ideal solution – engineered for a seamless installation
- Durable construction – manufactured from quality materials to withstand underhood heat and vibration
- Trustworthy design – backed by 100 years of automotive aftermarket experience
Dorman – Pressurized Coolant Reservoir: Black And White, Plastic, Original Equipment Replacement (Part No.603-122)
from
$135.99
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.
Product Features:
See More
Product Features:
- Direct replacement – this engine coolant reservoir matches the fit and function of the original part
- Ideal solution – engineered for a seamless installation
- Durable construction – manufactured from quality materials to withstand underhood heat and vibration
- Trustworthy design – backed by 100 years of automotive aftermarket experience
Dorman – Pressurized Coolant Reservoir (Part No.603-141)
from
$62.99
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.
Product Features:
See More
Product Features:
- Direct replacement – this engine coolant reservoir matches the fit and function of the original part
- Ideal solution – engineered for a seamless installation
- Durable construction – manufactured from quality materials to withstand underhood heat and vibration
- Trustworthy design – backed by 100 years of automotive aftermarket experience
Dorman – Coolant Reservoir – Expansion Tank (Part No.G1030308683DOR)
from
$39.13
Dorman’s Engine Coolant Recovery Tank is designed for enduring use. It resists the expansion and cracking that extreme temperature fluctuations can cause. Plus, the durable plastic construction prevents coolant fluid loss.
Product Features:
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Product Features:
- Comes with reservoir cap
- Level sensor included (where applicable)
- Direct replacement for a proper fit every time
- Quality tested to ensure trouble-free installation and performance
Dorman – Pressurized Coolant Reservoir: Black And Clear, Plastic, Original Equipment Replacement (Part No.603-385)
from
$57.99
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.
Product Features:
See More
Product Features:
- Direct replacement – this engine coolant reservoir matches the fit and function of the original part
- Ideal solution – engineered for a seamless installation
- Durable construction – manufactured from quality materials to withstand underhood heat and vibration
- Trustworthy design – backed by 100 years of automotive aftermarket experience
Dorman – Pressurized Coolant Reservoir: Black And White, Plastic, Original Equipment Replacement (Part No.603-237)
from
$127.99
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.
Product Features:
See More
Product Features:
- Direct replacement – this engine coolant reservoir matches the fit and function of the original part
- Ideal solution – engineered for a seamless installation
- Durable construction – manufactured from quality materials to withstand underhood heat and vibration
- Trustworthy design – backed by 100 years of automotive aftermarket experience
Dorman – Non-Pressurized Coolant Reservoir: White, Plastic, Original Equipment Replacement (Part No.603-103)
from
$31.99
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.
Product Features:
See More
Product Features:
- Direct replacement – this engine coolant reservoir matches the fit and function of the original part
- Ideal solution – engineered for a seamless installation
- Durable construction – manufactured from quality materials to withstand underhood heat and vibration
- Trustworthy design – backed by 100 years of automotive aftermarket experience
KAI – Coolant Reservoir (Part No.GM3014113)
from
$39.99
New Platinum Pro Coolant Recovery Tank, With Cap
Product Features:
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Product Features:
- With Cap, Made Of Plastic
- Meets All Federal Motor Safety Standards
- No Drilling Needed For Installation
- No Modifications Needed For Installation
- Direct Fit Replacement For Your Vehicle
- Same Form Fit And Function As OE
- Check Out The Large Selection Of Parts Available For Your Vehicle
Dorman – Expansion Tank (Part No.G10302322889DOR)
from
$64.53
Dorman’s Engine Coolant Recovery Tank is designed for enduring use. It resists the expansion and cracking that extreme temperature fluctuations can cause. Plus, the durable plastic construction prevents coolant fluid loss.
Product Features:
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Product Features:
- Comes with reservoir cap
- Level sensor included (where applicable)
- Direct replacement for a proper fit every time
- Quality tested to ensure trouble-free installation and performance
KAI – Coolant Reservoir (Part No.GM3014121)
from
$62.99
New Platinum Pro Coolant Recovery Tank, With Cap
Product Features:
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Product Features:
- With Cap, Made Of Plastic
- Meets All Federal Motor Safety Standards
- No Drilling Needed For Installation
- No Modifications Needed For Installation
- Direct Fit Replacement For Your Vehicle
- Same Form Fit And Function As OE
- Check Out The Large Selection Of Parts Available For Your Vehicle
KAI – Coolant Reservoir (Part No.GM3014123)
from
$54.99
New Platinum Pro Coolant Recovery Tank, With Cap
Product Features:
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Product Features:
- With Cap, Made Of Plastic
- Meets All Federal Motor Safety Standards
- No Drilling Needed For Installation
- No Modifications Needed For Installation
- Direct Fit Replacement For Your Vehicle
- Same Form Fit And Function As OE
- Check Out The Large Selection Of Parts Available For Your Vehicle
Original Equipment – Expansion Tank (Part No.G1030443836OEA)
from
$40.96
Expansion Tank
Dorman – Coolant Reservoir – Expansion Tank (Part No.G1030308677DOR)
from
$185.63
Dorman’s Engine Coolant Recovery Tank is designed for enduring use. It resists the expansion and cracking that extreme temperature fluctuations can cause. Plus, the durable plastic construction prevents coolant fluid loss.
Product Features:
See More
Product Features:
- Comes with reservoir cap
- Level sensor included (where applicable)
- Direct replacement for a proper fit every time
- Quality tested to ensure trouble-free installation and performance
ACDelco – Expansion Tank (Part No.G1030308540ACD)
from
$175.63
The ACDelco expansion tank is made of the highest quality materials and is engineered to meet or exceed the OEM specifications for performance, fit and durability.
Product Features:
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Product Features:
- OE-Equivalent and Direct Fit for easy Installation.
- OE style connections and fittings.
- Made of highly durable materials.
- Resistant to thermal wear and cracking.
Dorman – Coolant Reservoir – Expansion Tank (Part No.G1030308691DOR)
from
$169.43
Dorman’s Engine Coolant Recovery Tank is designed for enduring use. It resists the expansion and cracking that extreme temperature fluctuations can cause. Plus, the durable plastic construction prevents coolant fluid loss.
Product Features:
See More
Product Features:
- Comes with reservoir cap
- Level sensor included (where applicable)
- Direct replacement for a proper fit every time
- Quality tested to ensure trouble-free installation and performance
Dorman – Pressurized Coolant Reservoir: White, Plastic, Original Equipment Replacement (Part No.603-342)
from
$113.99
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.
Product Features:
See More
Product Features:
- Direct replacement – this engine coolant reservoir matches the fit and function of the original part
- Ideal solution – engineered for a seamless installation
- Durable construction – manufactured from quality materials to withstand underhood heat and vibration
- Trustworthy design – backed by 100 years of automotive aftermarket experience
Dorman – Pressurized Coolant Reservoir: White, Plastic, Original Equipment Replacement (Part No.603-861)
from
$69.99
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.
Product Features:
See More
Product Features:
- Direct replacement – this engine coolant reservoir matches the fit and function of the original part
- Ideal solution – engineered for a seamless installation
- Durable construction – manufactured from quality materials to withstand underhood heat and vibration
- Trustworthy design – backed by 100 years of automotive aftermarket experience
Dorman – Coolant Reservoir – Expansion Tank (Part No.G1030443838DOR)
from
$69.82
Dorman’s Engine Coolant Recovery Tank is designed for enduring use. It resists the expansion and cracking that extreme temperature fluctuations can cause. Plus, the durable plastic construction prevents coolant fluid loss.
Product Features:
See More
Product Features:
- Comes with reservoir cap
- Level sensor included (where applicable)
- Direct replacement for a proper fit every time
- Quality tested to ensure trouble-free installation and performance
KAI – Coolant Reservoir (Part No.GM3014118)
from
$44.99
New Platinum Pro Coolant Recovery Tank, With Cap
Product Features:
See More
Product Features:
- With Cap, Made Of Plastic
- Meets All Federal Motor Safety Standards
- No Drilling Needed For Installation
- No Modifications Needed For Installation
- Direct Fit Replacement For Your Vehicle
- Same Form Fit And Function As OE
- Check Out The Large Selection Of Parts Available For Your Vehicle
Find Your Cadillac STS Coolant Reservoirs by Year
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