Where this fits
F4 is intended for medium- and heavy-duty engine and transmission applications that need a robust round locking cap for check, check/fill, or fill-only service.
Additional information
Supports 1-inch, 1-1/2-inch, and 1-5/8-inch outside-diameter metal tubing, with an optional cap-only design and molded lanyard retention. Standard operating temperature is -40°F to +225°F.
