Great product, nice machine work, and nice anodizing.

Should mention on website: "For best results and sealing, use a genuine Motorcraft thermostat with this product'.

Excellent feel and look. Definitely much beefier than the stock housing. Does raise hose a little where it barely clears the bottom of the alternator bracket.

Fantastic product. Easy installation. Should have installed this product years ago

Soooo much better than the original housing.
Definitely would buy again and worth the couple extra bucks.

Excellent fit and finish. Seals incredibly well....

The quality of the product is evident as soon as you open the box. I have had 2 other covers from other companies on my other 7.3L and they don't compare to the quality of this one.

I ordered this Riff Raff billet thermostat housing for the new water pump I was installing. The original housing was rusty and needed to be replaced. Shipping was fast considering I live in Key Largo Florida. I know this will last me my lifetime and it looks good. Thank you Riff Raff for carrying original Motorcraft products and quality Riff Raff products.
Excellent customer service.

Had tried everything to fix my leak at the thermostat housing including a new parts store housing, still leaked, this seemed to do the trick, my only complaint is a new seal isn’t included.