| This is the sending unit that goes in the thermostat housing for the water temperature gauge. It fits all L series engines, A series, and Naps Z series engines. This listing is for an original factory part. It uses a single barrel connection. If you want to play it safe, it's a good idea to order the steel retaining nut for these senders at the same time. Better to have and not need......See listing. We can ship these units in a padded envelope via the post office for $5.50 anywhere in the lower 48 states. If you'd like that service just let us know by leaving a note in the comment section of the order form and we'll take care of it. These are now a special order item and it takes us a week to get them. We also sell an aftermarket version for a much lower price, and usually carry them in stock. See listing. Last updated 05/10 | 
