DAYCO COOLANT EXPANSION TANK TO SUIT HSV SENATOR VT VX VY LS1 5.7L V8
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CET803-I
Dayco Coolant Expansion Tank: Designed to Support Cooling System Pressure Control
A coolant expansion tank, also known as a radiator coolant tank, coolant reservoir, or expansion reservoir, is an important part of a pressurised cooling system. It provides a dedicated tank area for coolant movement as temperature and pressure change during normal engine operation.
This Dayco coolant expansion tank is designed as a practical replacement option for vehicles requiring radiator coolant tank servicing. It can be used when the original tank becomes discoloured, brittle, contaminated with sludge, cracked, or damaged, helping the cooling system continue effective operation.
Why Choose Dayco Coolant Expansion Tank?
- Designed to operate as part of a pressurised engine cooling system.
- Pressure cap is located on the expansion tank rather than the radiator on applicable systems.
- Positioned to support continuous coolant cycling through the tank.
- Helps manage coolant expansion as hot coolant releases pressure into the upper section of the tank.
- Designed to return coolant back into the cooling system as operating conditions change.
- Manufactured to support OE style fitment and cooling system service requirements.
- Backed by Dayco's automotive tank warranty of 2 years or 40,000 km.
Choose Dayco coolant expansion tank to help support cooling system pressure control, coolant reservoir replacement, and reliable radiator coolant tank servicing.
This coolant expansion tank suits HSV Vehicles fitted with the LS1 V8 engine.
Contents:
- 1 X Coolant expansion tank
Vehicle Fitment Guide

Notes:
- This expansion tank includes the low-level sensor.
- The image is for illustrative purposes only.
$68.00
