Billet Heater Core Outlets

** NOW IN STOCK ! ALL BACK ORDERS HAVE NOW SHIPPED !! **

GruvenParts.com is happy to release these billet heater core couplers for Ford and GM vehicles.

As many have already found out the hard way, the cheap plastic Ford, GM or Dorman coolant outlets for the heater core are prone to breaking at the worst possible times.  Don't risk ruining your expensive motor due to a simple plastic coolant fitting failure !  Once the plastic outlet breaks (and it WILL break), you have about 1 minute to pull over, stop the motor, and start walking.  If you happen to be towing, up a steep grade, you probably have about 30 seconds before you turn your V8 motor into a paper weight.  Your coolant system is only as strong as its weakest link, and this plastic outlet has proven itself to be a one of the weakest links !

GruvenParts billet heater core outlets solve this problem entirely.  These are precision CNC machined from 6061-T651 aircraft grade aluminum in our high tech Atlanta machining center.  Each outlet includes a short piece of HPS high performance silicone hose as well as 2 high quality stainless steel clamps.  The billet outlet is installed using the supplied silicone hose and clamps and fits over the existing factory hard line connection from the heater core with no modifications needed.

These billet outlets are sold individually so if you need 2 then please chose qty 2 during checkout.  

This billet outlet is intended to replace the crack prone factory plastic heater core connections on the following GM and Ford vehicles (please verify your vehicle has 1 of these part numbers before ordering) :

Replaces OEM P/N 15-03-20-62 (15032062), 15-15-18-73 (15151873), 15-15-18-75 (15151875), 15-76-16-41 (15761641), 15-03-78-26 (15037826), 10-04-26-88 (10042688), 15-11-91-75 (15119175)

Dorman P/N : 800-409 (800409)

CARQUEST / AC Delco / NAPA P/N 34000, 9927, 28500

**and many other P/N not listed here, please contact us if unsure, but most of the trucks listed below will use this fitting or some interchangeable variant of this fitting.

2000-2014 Tahoe, Suburban, Yukon, Yukon XL, 1500, 2500, 3500, H2, Astro, Safari
2002-2014 Denali, Escalade, Escalade ESV, Escalade ESV, Avalanche, Sierra, Silverado, 1500, 2500, 3500

2000-2018 Ford F150, F250, F350, Excursion, Econoline, Thunderbird, Aviator

Possibly others - please see if the part numbers match what is on your vehicle.