Radium Engineering Coolant Tank Kit
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Radium Engineering Coolant Tank Kit - Ford Focus ST / RS (LW / LZ)
The Radium Engineering coolant tank kit (SKU 20-0318) replaces the plastic coolant expansion tank at the front right of the engine bay on the Ford Focus ST and Focus RS. It works exactly like the OEM tank while adding 160mL of coolant capacity and far more durability than the factory plastic part.
The tank is CNC machined from aluminium in two halves that bolt together. Inside are two chambers linked by crossover passages at the top and bottom, plus a swirl feature that helps de-aerate the cooling system. The kit includes all parts needed for installation.
Note: The pressure cap is sold separately. Radium's optional black stainless steel cap has a 21.8psi relief valve for a higher boiling point, useful for hard track use. No permanent vehicle modifications are required. Installation by a professional is recommended.
Features
- CNC machined aluminium, two-piece bolted construction
- +160mL coolant capacity over OEM
- Two internal chambers with top and bottom crossover passages
- Internal swirl feature to aid de-aeration
- Direct replacement for the OEM plastic tank
- No permanent modifications required
Pairs Well With
- Radium Engineering Fluid Lock Catch Can Kit (PCV) - Ford Focus ST / RS (LZ)
- Radium Engineering Fuel Surge Tank Install Kit - Ford Focus ST / RS (LW / LZ)
- Radium Engineering Port Injection Kit - Ford Focus / Mustang (EcoBoost)
Need help confirming fitment? Contact our team at sales@chicaneaustralia.com.au.
Vehicle Compatibility
| Make | Model | Chassis | Years | Engine / Notes |
|---|---|---|---|---|
| Ford | Focus ST | LW / LZ | 2013–2018 | 2.0L EcoBoost |
| Ford | Focus RS | LZ | 2016–2018 | 2.3L EcoBoost |
Product
- Brand
- Radium Engineering
- Part number(s)
- 20-0318
Details
- Construction
- CNC machined aluminium, two-piece bolted
- Additional capacity
- +160mL over OEM
- Internal design
- Two chambers with crossover passages, swirl de-aeration feature
- Pressure cap
- Sold separately (Radium cap 21.8psi relief)
Contents
Billet aluminum coolant tank
Aluminum mounting bracket
Aluminum adapter fittings
Heater hoses (5/16" and 3/4")
Overflow hose (7/32")
Stainless steel hardware
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