Hello everyone,

Back a few years ago I replaced my 190E oxygen sensor with a Ford Mustang GT unit which is also the same as the Bosch 15725 universal.

Buy Bosch Oxygen Sensor 15735 at Advance Auto Parts

Not too long ago my buddy replaced his 560SEL's with a non-MB unit. I cannot remember which it was. I thought it was the same as my Ford Mustang unit but I could be wrong.

I was looking and evidently Bosch 15735 is the universal for the 420SEL.

Whats the difference between the 15725 and 15735 units? I swear we just used the Ford Mustang unit on the 560SEL but it was a while ago and neither of us can recall exactly.

There is a substantial price difference between the two. I tried searching on here and there were no definitive post/thread on the v8 w126s.

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(4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!)


82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k