Manufacturer's Part Number:
Overflow Tank Components
OER GM Radiator Overflow Jar Caps
Summit Racing Part Number:
Overflow Tank Component Type:
Features "Engine Coolant Only" on the cap.
Choose In-store pick-up (OH, GA, NV) on our web site.
Replace that broken, warped, or missing cap on your ride to keep your overflow bottle from leaking coolant with a new one from OER. These radiator overflow jar caps are designed to fit on various GM applications and feature "Engine Coolant Only" stamped right onto them. When you need quality replacements that are as good as the originals or better, equip your ride with the best--OER!