These wrenches have been designed for use with most all oxygen sensors no matter what size electrical connectors they have.

The original wrench, #88750A, allows easy access to the oxygen sensor, which is often located in a very confined area. The #88750A even fits into the area above the catalatic converter on 16 valve VW GTIs.

The #93750A was developed to access oxygen sensors on LTl Gen II 5.7L HO MPFI V-8 found in the 1992 and later Corvette, 1993 and later Camaro and 1993 and later Firebird/Trans Am. It also works with 1989 and later Corvette ZRl with the LT5 5.7L DOHC SFI V-8.  Both wrenches work on many domestic and foreign applications.  Made from quality alloy steel with a black finish.                                       

THE #66750B was designed as a 6 point, to R&R “can” type shielded oxygen sensors currently found on later models of Toyota and Lexus vehicles (excluding 2004 and later four cylinder engines) also 2007 and later Mazda’s that have a heat shield around the oxygen sensor, Nissan 2007 and later,  and later, Kia 2006 and later, Hyudai 2006 and later. The depth and outer diameter of the socket are critical features enabling it to fit in the limited space of the heat shield\