Derale 13011 Engine Coolant Thermostat Kit, 3/8" NPT Billet Aluminum

The Derale 13011 is a billet-style cast aluminum fluid control thermostat kit with 3/8" NPT inlet and outlet ports. Designed to optimize engine and transmission warm-up, this fluid bypass thermostat allows oil to bypass the cooler entirely until it reaches 180°F. Once that temperature is reached, the internal thermostatic valve closes and routes 100% of the fluid through the cooler, maintaining a constant pressure system throughout. The unit can be rotated 180° to switch flow direction, making installation flexible. The kit includes 3/8" hose barb fittings and hose clamps.

Key Features:

• Bypasses cooler until fluid temperature reaches 180°F for quicker warm-up
• Forces 100% fluid flow through cooler once operating temperature is reached
• Billet-style cast aluminum construction with ultra-bright silver finish
• 3/8" NPT inlet and outlet ports
• Rotates 180° to reverse flow direction
• Flows up to 20 gallons per minute
• Rated up to 200 psi
• Kit includes 3/8" hose barb fittings and hose clamps
• Ideal for cold weather climates

This fluid control thermostat kit is an excellent solution for protecting oil coolers from over-cooling and helping engines and transmissions reach ideal operating temperatures faster. Note: mounting bracket is sold separately. This product is subject to California Proposition 65 warnings.