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Thermostat Housings, Filler Necks & Water Restrictors

There are a number of thermostat housings and water necks to help you locate your radiator hose in the right direction or dress-up the top of your engine. JEGS offers several straight, swivel, 90 degree and angled water necks in chrome, billet aluminum and other materials! Get the thermostat housing to fit your needs!

Featured JEGS Brand Thermostat Housings and Filler Necks

Individual Products Product Groups
Cooling, AC & Heating Thermostat Housings, Filler Necks & Water Restrictors












JEGS Performance Products Aluminum Thermostat Housing


Aluminum Thermostat Housing
  • Small Block Chevy
  • Big Block Chevy
  • 1-1/2" Hose
  • O-Ring Seal
  • 45° Swivel
  • Polished
    Includes:
  • Hardware
  • $18.99
    Ships Today
    Lowest Price Guarantee
    (7)



    JEGS Performance Products Aluminum Thermostat Housing


    Aluminum Thermostat Housing
  • Small Block Chevy
  • Big Block Chevy
  • 1-1/2" Hose
  • O-Ring Seal
  • 90° Swivel
  • Polished
    Includes:
  • Hardware
  • $18.99
    Ships Today
    Lowest Price Guarantee
    (4)


    JEGS Performance Products Water Restrictor Discs


    Water Restrictor Discs
  • Made in the USA
    Includes:
  • (1) 5/8" ID (Gold) Restrictor
  • (1) 3/4" ID (Blue) Restrictor
  • (1) 1" ID (Red) Restrictor
  • $5.95
    Ships Today
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    (1)








    Mr Gasket Thermostat Gasket


  • 1955-1991 Small Block Chevy
  • 1965-1990 Big Block Chevy
  • 1/pkg.
  • $3.21
    $2.89
    ON SALE - $0.32 OFF
    Ships Today
    Lowest Price Guarantee