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Hybrid Racing

Hybrid Racing Replacement Coolant Switch

Hybrid Racing Replacement Coolant Switch

Regular price $44.99 USD
Regular price Sale price $44.99 USD
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  • Used to Control Radiator Fan
  • OEM B/D/K Series Replacement Sensor
  • Common K Swap Product
  • M18x1.5 thread
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PRODUCT DETAILS

Hybrid Racing Replacement Coolant Switch

Keep your K-swap running cool and trouble-free with the Hybrid Racing Replacement Coolant Switch. Engineered to factory-grade tolerances, this direct-fit sensor threads into any Hybrid Racing K-Swap radiator—or other M14 x 1.5 fan-switch ports—to automatically trigger your radiator fan the moment coolant temps rise above the safe limit. No more guessing, splicing, or risky toggle-switch rigs; just reliable, hands-off fan control that protects your investment lap after lap and mile after mile.


Why it belongs in every K-series build

  • OEM-style accuracy – calibrated to activate the fan at ~199 °F (92 °C) and deactivate at ~189 °F (87 °C) for consistent temperature management.
  • Plug-and-play for K-swaps – mates directly with the factory K-series chassis harness or Hybrid Racing fan-relay kits; no repinning required.
  • Built for abuse – brass body resists vibration, corrosion, and extreme under-hood temps common to track and boosted applications.
  • Leak-proof sealing – pre-installed crush washer ensures a tight, drip-free fit the first time you snug it down.
  • Compact insurance – a 5-minute upgrade that can save a head gasket, protect your tune, and keep you on track instead of on the trailer.

Installation Snapshot:

Beginner | 5–10 min | Crush washer included | No tuning, cutting, or special tools required