Derale Performance 3__8" NPT Fluid Control Thermostat with Mounting Bracket - Manual

25791-InstructionSheet
Derale Performance, Los Angeles, CA 800.421.6288 www.derale.com
INSTALLATION INSTRUCTIONS
FLUID CONTROL THERMOSTAT W/ BRACKET
PART # 25791
KIT CONTENTS
QTY. DESCRIPTION
1 Fluid Control Thermostat - 3/8” NPT Ports
1 Mounting Bracket
4 1/4-20 x 3/8” Stainless Bolts
4 #14 Sheet Metal Screws
Please read these instructions completely before starting the installation.
The Fluid Control Thermostat can be mounted in any position.
Reference Diagram # 1 & 2 to insure the direction of oil flow is correct.
Standard Screw Driver
Teflon Tape
Open End Wrench’s
Allen Wrench
Marker
Drill
3/16” Drill Bit
TOOLS NEEDED
Transmissions Engines
RECOMMENDED FOR
How It Works:
When the oil is cool the valve is in the open position, allowing oil to be applied equally to both the inlet and outlet of the cooler,
preventing oil flow through the cooler. As the oil temperature approaches 180ºF the valve begins to close, forcing all of the oil to
flow through the cooler and return through the valve to the source. This fail-safe design insures full oil flow to the source
regardless of whether the valve is open or closed. The cooler remains full of oil at all times, eliminating pressure variations,
aeration and foaming of the oil.
IMPORTANT
Diagram #2 Diagram #2
made in
USA
Engine/
Transmission
Fluid Control
Thermostat
Oil Cooler
(Not Included)
Diagram #1 Diagram #1
AFTER COOLER
BEFORE COOLER
TYPICAL INSTALLATION
AFTER COOLER
BEFORE COOLER
made in
USA
made in
USA
Option 2
1/4-20 x 3/8” Stainless Bolts
Mounting
Bracket
Thermostat
(Not Included)
MOUNTING LOCATION
BRACKET INSTALLATION
Choose a convenient location on the vehicles frame, firewall, core support or sub frame.
1. Using the four 1/4-20 x 3/8” Stainless Bolts, attach the Mounting Bracket to the fluid control thermostat in the desired
orientation. (See Diagram #1)
Loctite or suitable sealant can be used for a more permanent installation.
2. Using the Mounting Bracket Assembly as a template, mark and drill four 3/16” holes in the desired location.
3. Using the four #14 Sheet Metal Screws, attach the Mounting Bracket Assembly.
NOTE:
Option 1
Mounting
Bracket
Diagram #1
1/4-20 x 3/8” Stainless Bolts
Thermostat
(Not Included)
Hose Barb Fitting
(Not Included)