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JEGS Aluminum Thermostat Housing


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Aluminum Thermostat Housing
SAVE $2.30
Aluminum Thermostat Housing
  • Small Block Chevy
  • Big Block Chevy
  • 1-1/2" Hose
  • O-Ring Seal
  • 75° Swivel
  • Polished
  • Hardware
  • Ships on 03/04/24

    Thank you! We will notify you when this product becomes available.


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    51112 is rated 4.9 out of 5 by 22.
    Rated 5 out of 5 by from Successful install first time Since o ring crush is minimal, it's important to have flange and neck sit flat and flush. Burr on the inside of the flange where it holds the neck could have loaded the neck unevenly. I sanded it off and lubricated both parts where they make contact. I also put a small head of silicone on the edge of the neck just outside of the o ring. I did not rotate the neck once tightened. No leaks on Edelbrock manifold.
    Date published: 2020-01-05
    Rated 5 out of 5 by from Sweet Piece! Very impressive product for a very good price. Replaced my radiator with a non-OEM model and needed the ability to readjust the upper hose installation. This adjustable thermostat housing worked perfectly and was not ridiculously expensive like some are. Not sure how the other guys are justifying the cost for theirs as this is a pretty nice looking and working alternative.
    Date published: 2015-06-30
    Rated 5 out of 5 by from Jegs Cast Aluminum Thermostat Housing Great quality, very nice finish! Haven't installed the product yet, but I'm sure it's performs flawlessly.
    Date published: 2015-02-14
    Rated 4 out of 5 by from Nice part for the money Looks good, but the finish is not as shinny as i would have liked. But for the price it looks descent. Can't say if the o-ring seals yet....still in the process of finishing the engine.
    Date published: 2022-10-14
    Rated 3 out of 5 by from Looks good Replaced neck and thermostat. Had to add gasket in addition to o ring to seal
    Date published: 2016-07-19
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    What is the bolt pattern center to center?

    Asked by: jamefit
    The Jegs 555-51112 thermostat housing uses standard 3 1/4 bolt spacing.
    Answered by: jshook
    Date published: 2024-01-23
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