H2O Performance Additional Water Radiator for Aprilia RS 660 (2020–2026)
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When the Aprilia RS 660 is working hard — whether on a sun-baked back road or deep into a track day session — thermal stability separates a satisfying ride from a frustrating one. The H2O Performance additional water radiator is engineered specifically for the RS 660 to expand cooling capacity, hold engine temperatures in their optimal range, and let you extract every last fraction of the engine's potential without compromise.
Key Features
- Increased cooling capacity through a larger surface area and motorsport-optimised core design
- Improved temperature stability under sustained high load, hot ambient conditions, and track use
- Reduces thermal stress on the entire cooling circuit, supporting long-term engine reliability
- Plug-and-play fitment for Aprilia RS 660 (2020–2026) — precise tolerances, clean installation
- Race-derived technology translated directly from real competition requirements to the road
Built for Riders Who Push Further
H2O Performance is one of the most respected names in high-performance cooling, with a catalogue shaped by genuine motorsport demands. Their additional radiator for the RS 660 is not a generic afterthought — it is a purpose-designed component that works alongside the factory cooling system to provide the extra thermal headroom that spirited riding demands.
The larger heat-exchange surface allows the coolant circuit to shed heat more efficiently, keeping the engine operating within its ideal temperature window even when ambient temperatures climb or throttle demand stays high for extended periods. The result is consistent power delivery, reduced wear on internal components, and a ride that feels just as sharp on lap fifteen as it did on lap one.
Who This Radiator Is For
- Ambitious sports riders who demand consistent performance regardless of conditions
- Track day enthusiasts looking to eliminate temperature-related power loss once and for all
- Owners focused on preserving engine longevity over high-mileage seasons
- Anyone ready to take the technical specification of their RS 660 to the next level
Fitment & Compatibility
This H2O Performance additional water radiator is a direct-fit upgrade for the following:
- Aprilia RS 660 — model years 2020, 2021, 2022, 2023, 2024, 2025, 2026
Specifications
- Brand: H2O Performance
- Type: Additional water radiator
- Fitment: Aprilia RS 660 (2020–2026)
- Installation: Plug-and-play, no modification required
- Design: Motorsport-optimised, enlarged heat-exchange surface
- Intended use: Road and track
| Brand | H2O Performance |
|---|---|
| Type | Additional water radiator |
| Fitment | Aprilia RS 660 (2020–2026) |
| Installation | Plug-and-play, no modification required |
| Core design | Motorsport-optimised, enlarged heat-exchange surface |
| Intended use | Road and track |
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// H2O
H2O Performance Additional Water Radiator for Aprilia RS 660 (2020–2026)

Tech specs
- Brand
- H2O Performance
- Type
- Additional water radiator
- Fitment
- Aprilia RS 660 (2020–2026)
- Installation
- Plug-and-play, no modification required
- Core design
- Motorsport-optimised, enlarged heat-exchange surface
- Intended use
- Road and track
- Worldwide shipping
- Genuine parts & verified quality
- 14-day returns — in stock ships within 24h
- Personal email support
// Support
Frequently asked questions
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