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Cadillac Seville Replacement Expansion Tank Information


Knowing a good auto parts person is an important detail when you drive a vehicle with top-quality manufacturing like a Cadillac Seville, and other similar models, because repairs will likely be costly. The Cadillac Seville is a great vehicle that will provide great handling as well as optimal comfort wherever the road takes you. Genuine Cadillac cars include a combination of lavish design in addition to unparalleled operation. When buying a ride whose focus is on luxury, such as the Cadillac Seville it is important to be informed that fuel economy isn't usually affordable. Over the past several decades, Cadillac automobiles have been known as opulence in addition to superior design at a reasonable cost. When considering a reliable vehicle that has classy design, adequate space and has a small footprint, get a Top power and performance is a breeze with optional devices made to improve the power systems as well as front end components. A Cadillac Seville Expansion Tank allows the gas in the radiator to swell because of the higher temperature and rising pressure. Cadillac Seville Expansion Tanks provide room for the cooling fluid to expand as temperatures rise, saving the cooling system from cracking or boiling over, or cooling fluid from overflowing from the vehicle's cooling system. The Cadillac Seville Expansion Tank can begin to leak due to inclement weather or simple wear; if this occurs a new unit must be installed to maintain your cooling system in perfect shape. Without a Cadillac Seville Expansion Tank on a vehicle, the coolant that is released by the pressure would leak onto the road which is harmful to the environment.


They are available for the following Cadillac Seville years: 2004, 2003, 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995, 1994, 1993, 04, 03, 02, 01, 00, 99, 98, 97, 96, 95, 94, 93. This part is also sometimes called Cadillac Seville Radiator Overflow Tank. We stock expansion tank parts for most Cadillac models including DeVille, Eldorado, DTS, Fleetwood, Escalade, SRX, Catera, CTS, Escalade ESV and 60 Special.

We stock these Expansion Tank brands for the Cadillac Seville: Replacement, Dorman, AC Delco and Action Crash.


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Review Fitment Notes to Ensure Proper Fit

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(1 Reviews)
3 Stars
Replacement 123-015
Expansion Tank
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Our List Price: $51.95
with FREE Shipping

Product SKU: 123-015
Product Note: Engine Coolant Reservoir
Important Product Info: ENGINE COOLANT OVERFLOW TANK, WITH CAP
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: E
Vehicle Engine
1997 (97) Cadillac Seville 4.6L V8 


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(11 Reviews)
4.9 Stars
Dorman 603-236
Expansion Tank
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Our List Price: $74.95
with FREE Shipping
(7) In Stock
Product SKU: 603-236
Product Note: Engine Coolant Reservoir
Position of Product: Front
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
1999 (99) Cadillac Seville 4.6L V8 


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(11 Reviews)
4.9 Stars
Dorman 603-236
Expansion Tank
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Our List Price: $74.95
with FREE Shipping
(7) In Stock
Product SKU: 603-236
Product Note: Engine Coolant Reservoir
Position of Product: Front
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
2002 (02) Cadillac Seville 4.6L V8 


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(11 Reviews)
4.9 Stars
Dorman 603-236
Expansion Tank
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Our List Price: $74.95
with FREE Shipping
(7) In Stock
Product SKU: 603-236
Product Note: Engine Coolant Reservoir
Position of Product: Front
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
2003 (03) Cadillac Seville 4.6L V8 


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(11 Reviews)
4.9 Stars
Dorman 603-236
Expansion Tank
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Our List Price: $74.95
with FREE Shipping
(7) In Stock
Product SKU: 603-236
Product Note: Engine Coolant Reservoir
Position of Product: Front
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
2000 (00) Cadillac Seville 4.6L V8 


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(11 Reviews)
4.9 Stars
Dorman 603-236
Expansion Tank
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Our List Price: $74.95
with FREE Shipping
(7) In Stock
Product SKU: 603-236
Product Note: Engine Coolant Reservoir
Position of Product: Front
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
2001 (01) Cadillac Seville 4.6L V8 


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(Read reviews)
Product List Price:
$156.47
Our List Price: $74.95
with FREE Shipping
(20) In Stock
Product SKU: W0133-1820184
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping or (Overnight and 2-Day Shipping)
Additional Fitment Information: Catalog: A
Vehicle
2000 (00) Cadillac Seville


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(11 Reviews)
4.9 Stars
Dorman 603-236
Expansion Tank
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Our List Price: $74.95
with FREE Shipping
(7) In Stock
Product SKU: 603-236
Product Note: Engine Coolant Reservoir
Position of Product: Front
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
1998 (98) Cadillac Seville 4.6L V8 


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(11 Reviews)
4.9 Stars
Dorman 603-236
Expansion Tank
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Our List Price: $74.95
with FREE Shipping
(7) In Stock
Product SKU: 603-236
Product Note: Engine Coolant Reservoir
Position of Product: Front
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
2004 (04) Cadillac Seville 4.6L V8 


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(6 Reviews)
5 Stars
Dorman 603-133
Expansion Tank
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Our List Price: $71.95
with FREE Shipping
(20) In Stock
Product SKU: 603-133
Product Note: Engine Coolant Reservoir
Position of Product: Front
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
1997 (97) Cadillac Seville 4.6L V8 


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(Read reviews)
Our List Price: $138.33
(3) In Stock
Product SKU: 25635588
Product Note: GM Original Equipment -- New; INCLUDES LOW COOLANT SWITCH
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: B
Vehicle Sub Model Engine
2000 (00) Cadillac Seville SLS  4.6L V8 VIN: Y 


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(Read reviews)
Product List Price:
$156.47
Our List Price: $74.95
with FREE Shipping
(20) In Stock
Product SKU: W0133-1820184
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping or (Overnight and 2-Day Shipping)
Additional Fitment Information: Catalog: A
Vehicle
2003 (03) Cadillac Seville


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(1 Reviews)
5 Stars
Dorman W0133-1820133
Expansion Tank
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Product List Price:
$150.48
Our List Price: $71.95
with FREE Shipping
(21) In Stock
Product SKU: W0133-1820133
Product Note: (Includes Coolant Sensor)
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping or (Overnight and 2-Day Shipping)
Additional Fitment Information: Catalog: A
Vehicle
1997 (97) Cadillac Seville


Click to Enlarge
(Read reviews)
Product List Price:
$156.47
Our List Price: $74.95
with FREE Shipping
(20) In Stock
Product SKU: W0133-1820184
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping or (Overnight and 2-Day Shipping)
Additional Fitment Information: Catalog: A
Vehicle
1999 (99) Cadillac Seville


Click to Enlarge
(Read reviews)
Product List Price:
$156.47
Our List Price: $74.95
with FREE Shipping
(20) In Stock
Product SKU: W0133-1820184
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping or (Overnight and 2-Day Shipping)
Additional Fitment Information: Catalog: A
Vehicle
2004 (04) Cadillac Seville


Click to Enlarge
(Read reviews)
Product List Price:
$156.47
Our List Price: $74.95
with FREE Shipping
(20) In Stock
Product SKU: W0133-1820184
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping or (Overnight and 2-Day Shipping)
Additional Fitment Information: Catalog: A
Vehicle
2002 (02) Cadillac Seville


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(6 Reviews)
4.7 Stars
Action Crash GM3014108
Expansion Tank
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Product List Price:
$23.37
Our List Price: $16.98

Product SKU: GM3014108
Product Note: COOLANT RECOVERY TANK PLASTIC
Important Product Info: 4.9L; Automatic Transmission
Condition: New

Quality: Premium - High quality new replacement part.

Shipping Options:
Ground
Additional Fitment Information: Catalog: D
Vehicle Notes
1993 (93) Cadillac Seville COOLANT RECOVERY TANK PLASTIC 


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Research on Expansion Tank for Cadillac Seville

Cadillac Seville Expansion Tank

The Cadillac Seville delivers a dynamic, luxurious driving experience. To dominate on the road in your Seville, you must be able to depend on all of its systems to perform optimally. If your vehicle tends to overheat, you likely aren’t getting the most out of your vehicle. Instead of jeopardizing your ride, swap out your old, worn, or damaged Cadillac Seville expansion tank for a modern upgrade.

At PartsGeek.com, we have the parts you need to keep your Cadillac Seville running right. With our 30-day return policy, you can shop with confidence, knowing your are getting the perfect parts for your vehicle. Shop our selection of Cadillac expansion tanks below.

What is a Cadillac Seville expansion tank?

Like with all vehicles, a Cadillac Seville has an engine. To perform optimally, the Seville’s engine must not overheat. For that reason, the vehicle’s manufacturers equipped it with a comprehensive cooling system. To keep the car’s radiator in good shape, it has an expansion tank. The purpose of the tank is to collect and store excess coolant. Since fluid expands in the radiator, the tank works as a failsafe, guaranteeing the radiator has access to the coolant it needs to work properly. It also guarantees the Seville’s engine doesn’t waste coolant. Thus, without a properly functioning expansion tank, the entire cooling system might not perform adequately.

How much does a Cadillac Seville expansion tank cost?

Here at PartsGeek.com, Seville expansion tanks typically cost between $15 and $65. Vehicle model year, tank brand, and tank materials affect the actual cost of the expansion tank.

How do I know if I need a new Cadillac Seville expansion tank?

To keep your Cadillac Seville running optimally, its cooling system must work effectively. While many things can go wrong with a vehicle’s radiator, you should pay special attention to problems with the expansion tank. Specifically, watch for the following signs you need a new Cadillac Seville expansion tank:

  • Leaking fluid
  • Frequently adding coolant
  • Engine overheating


Some of our Customer Reviews
Very Satisfied
Reviewer: xxx

Product is/as original equipment not a knockoff..have not installed on vehicle yet, will do so when time permits.

2001 Cadillac Seville Expansion Tank

Very Satisfied
Reviewer: bill

the service was great and the sales staff was well informed, the part came fast, went in fast, a perfect fit for the car. very satisfied will shop with them again.

1992 Cadillac Seville Expansion Tank

Very Satisfied
Reviewer: Dave

Part came quickly and packaged well. Prices seem to be set pretty well. I would buy from partsgeek.com again.

2002 Cadillac Seville Expansion Tank

Very Satisfied
Reviewer: Just what the Dr. ordered!

Got an exact fit/part at less than half the price my local shop quoted for this unit. Went in the tight spot and by me doing the work, I saved well over $100 verses my shop doing it. Thanks!

2003 Cadillac Seville Expansion Tank

Somewhat Satisfied
Reviewer: lastmansloppy

The part was just right. The mechanic who installed it was impressed with the quality and what it cost me as well. The only problem was that it took 8 days from the moment I ordered it for the part to arrive.

2003 Cadillac Seville Expansion Tank

Very Satisfied
Reviewer: daddy's helper

I easily found this part on Parts Geek web site. Price was very good. Received part in one week, with Thanksgiving weekend in that week.

2002 Cadillac Seville Expansion Tank


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