The o-rings found inside the upper radiator hose quick disconnect and the connection from the Y shaped house to the thermostat housing are not available from Ford as separate o-ring's. PBH has done the homework and found the correct o-rings to seal the hoses without having to buy complete radiator hoses or the housing. Both o-rings are included in the kit and will be direct replacements for the factory units. *this is not the thermostat oring.
79k 2011-2014 Mustang GT Coyote 5.0 Engine 6 Speed Manual Transmission
Mustang Gen 2 Coyote Swap Engine Parts & Controls - LMR
WKP Can Am Front Differential Rebuild Kit – Warranty Killer Performance
5.0L Coyote Swap Accessory Bracket Kit for 1965 - 1973 Mustang and Others
5.0L Ford Mustang Gen 3 Coyote High Pressure Fuel Pump Kit
1965 - 1970, 1996-2010 Mustang 5.0L Coyote Swap Accessory Bracket Kit
Meziere WP341S 300 Series Electric Water Pump Ford 5.0L Coyote
MMR Street Mod 1000 Forged Shortblock 1000RWHP (Coyote 5.0) 601000
Ford 5.0L Coyote Engine Motor
WKP Can Am GEN 2 Air Box O Ring / Gasket – Warranty Killer Performance
Not running a heater on your 5.0L Coyote engine? if so, the factory hot water tubes pose a bit of an issue. With this kit you can now replace both hot
Coyote Swap Cooling System Hot Water Bypass Kit
Leader of the Pack - A Guide to the Ford Coyote Engine