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Get affordable Saturn Ion expansion tanks you deserve. In just 10 minutes, you could save up to 80% with PartsGeek. Save time and dollars on your next Ion radiator overflow tanks purchase. Over 12 Years of saving people money and providing great customer service. Check our low-cost options today. The average cost for expansion tank replacement is between $38.95 and $77.43

Saturn Ion Expansion Tank Reviews
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Shop Saturn Ion Replacement Expansion Tank

Replacing the expansion tank on your Saturn Ion becomes necessary in the event that your original tank becomes damaged or inoperable. The development of cracks leading to leaks in these tanks is not uncommon, especially considering the fact that they're made out of plastic and are subject to a large degree of thermal abuse. In cold-weather climates, these plastic tanks may be asked to go from temperatures well below freezing, causing them to become brittle, to temperatures of 212 degrees, which is the temperature of the boiling-hot liquid.

Once cracks develop in the expansion tank for your radiator coolant system, repair is not a viable option and it will need to be replaced, which is not a difficult operation. PartsGeek.com stocks the exact replacement part for your Saturn Ion, model years 2004 through 2007, from the original equipment parts manufacturer, OES Genuine.

We stock these Expansion Tank brands for the Saturn Ion: ReplacementDormanAC DelcoDIY SolutionsSKP

Select your Ion year

Review Fitment Notes
Showing 18 of 45 Results
Front Replacement Expansion Tank - for 2007 Saturn Ion 2.4L 4 Cyl - 123-150 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: 123-150
Brand: Replacement
Notes: Engine Coolant Reservoir -- Engine Coolant Reservoir Expansion Tank with Cap
Position: Front
Condition: New
Shipping Options: Free Ground Shipping
$38.95
with FREE Shipping
(63) In Stock
This Part Fits:
Catalog: E
Vehicle Engine
2007 Saturn Ion 2.4L 4 Cyl
Front Dorman Expansion Tank - for 2004 Saturn Ion - 603-097 Click to Enlarge
4.7 Stars
Dorman 603-097
Expansion Tank
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Part Number: 603-097
Brand: Dorman
Notes: Engine Coolant Reservoir -- L4 134CID 2.2L
  • 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
Position: Front
Condition: New
Package Contents: 1 Coolant Reservoir; 1 Cap
Color: Clear
Shipping Options: Ground
$43.43
(16) In Stock
This Part Fits:
Catalog: B
Vehicle
2004 Saturn Ion
Front Dorman Expansion Tank - for 2005 Saturn Ion 2.0L 4 Cyl - 603-097 Click to Enlarge
4.7 Stars
Dorman 603-097
Expansion Tank
Loading Reviews...
Part Number: 603-097
Brand: Dorman
Notes: Engine Coolant Reservoir
  • 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
Position: Front
Condition: New
Package Contents: 1 Coolant Reservoir; 1 Cap
Color: Clear
Shipping Options: Ground
$43.43
(16) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2005 Saturn Ion 2.0L 4 Cyl
Front Dorman Expansion Tank - for 2007 Saturn Ion 2.0L 4 Cyl - 603-097 Click to Enlarge
4.7 Stars
Dorman 603-097
Expansion Tank
Loading Reviews...
Part Number: 603-097
Brand: Dorman
Notes: Engine Coolant Reservoir
  • 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
Position: Front
Condition: New
Package Contents: 1 Coolant Reservoir; 1 Cap
Color: Clear
Shipping Options: Ground
$43.43
(16) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2007 Saturn Ion 2.0L 4 Cyl
Dorman Expansion Tank - for 2007 Saturn Ion - W0133-1799986 Click to Enlarge
5 Stars
Dorman W0133-1799986
Expansion Tank
Loading Reviews...
Part Number: W0133-1799986
Brand: Dorman
Product Remark: w/ Sensor
Condition: New
Shipping Options: Ground, Overnight, 2 Day
List Price:
$87.53
Our Price: $51.58
View Details
This Part Fits:
Catalog: A
Vehicle
2007 Saturn Ion
Dorman Expansion Tank - for 2005 Saturn Ion - W0133-1799986 Click to Enlarge
5 Stars
Dorman W0133-1799986
Expansion Tank
Loading Reviews...
Part Number: W0133-1799986
Brand: Dorman
Product Remark: w/ Sensor
Condition: New
Shipping Options: Ground, Overnight, 2 Day
List Price:
$87.53
Our Price: $51.58
View Details
This Part Fits:
Catalog: A
Vehicle
2005 Saturn Ion
Front Dorman Expansion Tank - for 2003 Saturn Ion 2.2L 4 Cyl - 603-097 Click to Enlarge
4.7 Stars
Dorman 603-097
Expansion Tank
Loading Reviews...
Part Number: 603-097
Brand: Dorman
Notes: Engine Coolant Reservoir
  • 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
Position: Front
Condition: New
Package Contents: 1 Coolant Reservoir; 1 Cap
Color: Clear
Shipping Options: Ground
$43.43
(16) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2003 Saturn Ion 2.2L 4 Cyl
Dorman Expansion Tank - for 2003 Saturn Ion - W0133-1799986 Click to Enlarge
5 Stars
Dorman W0133-1799986
Expansion Tank
Loading Reviews...
Part Number: W0133-1799986
Brand: Dorman
Product Remark: w/ Sensor
Condition: New
Shipping Options: Ground, Overnight, 2 Day
List Price:
$87.53
Our Price: $51.58
View Details
This Part Fits:
Catalog: A
Vehicle
2003 Saturn Ion
Front Dorman Expansion Tank - for 2006 Saturn Ion 2.0L 4 Cyl - 603-097 Click to Enlarge
4.7 Stars
Dorman 603-097
Expansion Tank
Loading Reviews...
Part Number: 603-097
Brand: Dorman
Notes: Engine Coolant Reservoir
  • 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
Position: Front
Condition: New
Package Contents: 1 Coolant Reservoir; 1 Cap
Color: Clear
Shipping Options: Ground
$43.43
(16) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2006 Saturn Ion 2.0L 4 Cyl
Dorman Expansion Tank - for 2006 Saturn Ion - W0133-1799986 Click to Enlarge
5 Stars
Dorman W0133-1799986
Expansion Tank
Loading Reviews...
Part Number: W0133-1799986
Brand: Dorman
Product Remark: w/ Sensor
Condition: New
Shipping Options: Ground, Overnight, 2 Day
List Price:
$87.53
Our Price: $51.58
View Details
This Part Fits:
Catalog: A
Vehicle
2006 Saturn Ion
Dorman Expansion Tank - for 2004 Saturn Ion - W0133-1799986 Click to Enlarge
5 Stars
Dorman W0133-1799986
Expansion Tank
Loading Reviews...
Part Number: W0133-1799986
Brand: Dorman
Product Remark: w/ Sensor
Condition: New
Shipping Options: Ground, Overnight, 2 Day
List Price:
$87.53
Our Price: $51.58
View Details
This Part Fits:
Catalog: A
Vehicle
2004 Saturn Ion
AC Delco Expansion Tank - for 2005 Saturn Ion - W0133-1799986 Click to Enlarge
5 Stars
AC Delco W0133-1799986
Expansion Tank
Loading Reviews...
Part Number: W0133-1799986
Brand: AC Delco
Notes: Genuine GM
Detailed Notes: w/ Level Switch
Product Remark: w/ Sensor
Condition: New
Shipping Options: Ground, Overnight, 2 Day
OEM
List Price:
$87.53
Our Price: $76.58
View Details
This Part Fits:
Catalog: A
Vehicle
2005 Saturn Ion
AC Delco Expansion Tank - for 2006 Saturn Ion - W0133-1799986 Click to Enlarge
5 Stars
AC Delco W0133-1799986
Expansion Tank
Loading Reviews...
Part Number: W0133-1799986
Brand: AC Delco
Notes: Genuine GM
Detailed Notes: w/ Level Switch
Product Remark: w/ Sensor
Condition: New
Shipping Options: Ground, Overnight, 2 Day
OEM
List Price:
$87.53
Our Price: $76.58
View Details
This Part Fits:
Catalog: A
Vehicle
2006 Saturn Ion
AC Delco Expansion Tank - for 2003 Saturn Ion - 10368831 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: 10368831
Brand: AC Delco
Notes: Engine Coolant Reservoir -- New; With SWITCH
Condition: New
Shipping Options: Ground
$77.43
(2) In Stock
This Part Fits:
Catalog: B
Vehicle
2003 Saturn Ion
AC Delco Expansion Tank - for 2003 Saturn Ion - W0133-1799986 Click to Enlarge
5 Stars
AC Delco W0133-1799986
Expansion Tank
Loading Reviews...
Part Number: W0133-1799986
Brand: AC Delco
Notes: Genuine GM
Detailed Notes: w/ Level Switch
Product Remark: w/ Sensor
Condition: New
Shipping Options: Ground, Overnight, 2 Day
OEM
List Price:
$87.53
Our Price: $76.58
View Details
This Part Fits:
Catalog: A
Vehicle
2003 Saturn Ion
AC Delco Expansion Tank - for 2007 Saturn Ion - 10368831 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: 10368831
Brand: AC Delco
Notes: Engine Coolant Reservoir -- New; With SWITCH
Condition: New
Shipping Options: Ground
$77.43
(2) In Stock
This Part Fits:
Catalog: B
Vehicle
2007 Saturn Ion
DIY Solutions Expansion Tank - for 2007 Saturn Ion - HVA02798 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: HVA02798
Brand: DIY Solutions
Notes: Engine Coolant Reservoir
Condition: New
Shipping Options: Free Ground Shipping
$70.95
with FREE Shipping
(1) In Stock
This Part Fits:
Catalog: Q
Vehicle
2007 Saturn Ion
Front SKP Expansion Tank - for 2007 Saturn Ion 2.4L 4 Cyl - SK603097 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: SK603097
Brand: SKP
Notes: Engine Coolant Reservoir
  • OE Style for easy replacement and fitment
Position: Front
Condition: New
Shipping Options: Free Ground Shipping
$40.98
with FREE Shipping
(31) In Stock
This Part Fits:
Catalog: S
Vehicle Engine
2007 Saturn Ion 2.4L 4 Cyl

Related Cooling System Parts

Expansion Tanks available for the following Saturn Ion years: 2007, 2006, 2005, 2004, 2003, 07, 06, 05, 04, 03. This part is also sometimes called Saturn Ion Radiator Overflow Tank. We stock expansion tank parts for most Saturn models including Vue, SL2, Aura, SL1, SC2, SL, L300, L200, SC1, SW2, SW1, Sky, LW300, LS1, LW200, L100, SC, Astra and Outlook.

Saturn Ion Expansion Tank Reviews
5 of 5
Verified Customer
10/16/13 09:36 PM - USA

Works great ..exactly what i needed and it was the best price i could find. - cheap

- 2007 Saturn Ion Expansion Tank
5 of 5
Verified Customer
11/19/13 03:53 PM - USA

Perfect factory replacement part the first time, nice job - perfect

- 2006 Saturn Ion Expansion Tank
5 of 5
Verified Customer
4/30/14 06:27 PM - USA

Finding the right parts can be difficult, not at Parts geek though. Great selection and even better prices. - 2004 Saturn Ion

- 2004 Saturn Ion Expansion Tank
5 of 5
Verified Customer
7/5/14 11:29 AM - USA

awsome site can always find what at i need and always cheaper than anywhere else i love this place - this place is great

- 2005 Saturn Ion Expansion Tank
5 of 5
Verified Customer
6/30/14 09:45 AM - USA

Product is just like OEM part that was replaced. Worked great without any issues. - Mac82jas

- 2004 Saturn Ion Expansion Tank
4 of 5
Verified Customer
10/23/14 11:28 AM - USA

The tank was an exact match for my existing tank, replacing it was a huge challenge (GM design is not particularly helpful). The delivery took 9 days from payment until it was delivered... a little slow. - Tank Fits and works

- 2007 Saturn Ion Expansion Tank