May be installed in the oil return line (pump-to-tank) to properly monitor engine oil temperature. All inline tees have 1/2" NPT threads to accept an oil temperature gauge probe adapter and 1/4" holes for mounting.16AN Oil Temperature Tee Availability: Usually ships the next business day 90042$51.99 Don't see what you want? .......... Need help? Or, IF THERE IS NO ORDER BUTTON AVAILABLE on the part you want to buy, please call us TOLL FREE at 1-888-6 GO FAST(1-888-646-3278) Monday - Friday 8AM - 4:30PM Pacific Time and talk to one of our experienced Sales Agents. Some parts may not be legal for sale or use in California and other states on any polution controlled motor vehicles. Check your local laws for use. Copyright © GoFastParts.com all rights reserved. No part of this site may be reproduced without prior written consent.