CarQuest Coolant Outlet OEM 85003

This CarQuest coolant outlet delivers a fresh thermostat pocket with correct gasket seating.

The coolant outlet (thermostat housing) is the pocket where the thermostat lives and where the upper radiator hose attaches to the engine. Plastic outlets are a common Ford and GM failure that show up as a slow coolant weep from the front of the head; replace with a fresh gasket and hoses.The manufacturer part number covers a broad range of makes, models, and model years - which is common for hardware kits, hydraulic components, and service items where the same physical piece is used across many platforms. The correct way to confirm this fits your vehicle is to match the manufacturer part number against your service manual, the OE parts diagram, or the part you are replacing. If your service manual cross-references this manufacturer PN, or if the piece you are removing carries this number physically stamped or labeled, you are looking at the correct replacement.

If you would like us to verify fitment against your VIN or vehicle configuration before you buy, contact us with the year, make, model, submodel, and trim of your vehicle and we will confirm the cross-reference against the manufacturer catalog.

Cross-Reference

Manufacturer part number 85003. This is a CarQuest catalog part. Confirm the OE reference for your vehicle matches before installing.

Why You Might Need This

A cracked plastic outlet is a common Ford and GM failure that shows up as a slow coolant weep from the front of the head. Replace with a fresh thermostat, gasket, and upper radiator hose.

Installation Notes

Install a new thermostat at the same time. Torque the outlet bolts in the manufacturer-specified sequence and to the manufacturer-specified spec - plastic outlets crack easily if over-torqued.

Shipping and Returns

Free shipping on orders over $75. Same-day shipping on in-stock parts ordered before 2:00 PM CT weekdays. Orders placed after the same-day cutoff ship the next business day. Every order ships from our climate-controlled warehouse; parts do not sit outside where humidity and temperature swings could damage packaging.

30-day return window on unopened, unused parts in original packaging. Open parts installed without verified fitment: no return, or up to a 40 percent restocking fee depending on condition. Brake friction material (pads and shoes) is safety-critical and cannot be returned once a pad has touched a rotor. If a part does not fit your vehicle as described, we cover the return shipping and make it right.