
OVERVIEW
-16AN Thermostat Housing For LS Gen 3 Water Pump
Compatible with: GM LS Gen 3 series water pumps (RPO Code: LS1, LM7, LR4, LQ4, LS6, L59, LQ9, LM4, L33) 1997-2007
- This thermostat housing converts water pump inlet to a -16AN male fitting for more durable, high pressure hoses
- Thermostat housing directs hose straight away from engine, to clear frame rails and suspension components
- Compatible with 1997 to 2007 LS Gen 3 thermostats
- Package Includes: 1 flange, 1 housing and 2 bolts
- Made in Wichita, Kansas from aerospace grade, USA produced, billet aluminum
- Will NOT fit on Gen 4 water pumps - See water pump guide for reference
- Gen 4 water pumps have a larger bolt pattern
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