Mishimoto Racing Thermostat - Chevrolet/GMC LSX (LS1/LS2/LS3/LS6/LS7)

Mishimoto racing thermostat for the GM LSX V8 family (LS1 / LS2 / LS3 / LS6 / LS7) — Chevrolet Corvette, Camaro, SSR, Trailblazer SS, Cadillac CTS-V, Pontiac GTO / G8 and Hummer H2. It opens at a lower temperature than stock, letting coolant flow through the engine sooner to reduce and maintain cooler temperatures. Direct-fit replacement, backed by the Mishimoto Lifetime Warranty.

Specifications

This part fits:

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy