Not sure where to post this, but since my car is a 997, I thought I'd post here. Anyway, anyone know whether K40 front and rear sensors are interchangable amongst K40 models? Near as i can tell mine is a K40 2000 circa 2005. I think the rear sensor is bad (two bells every few seconds). Several eBay sellers have K40 Calibres (DL and SL) for sale, as well as one labeled a K40 Superwide. All have the same FCC ID No. (QL4 G4M2) on the sensors, but unless this is the part number, there are no other distinguishing numbers. Not sure what the number on mine is (forgot to write it down when I had the bumper off), but I'll bet it's the same. Likely all to work interchangeably? Thanks.

 

Call the K40 folks. They are superb to deal with and.. they know their stuff. Try to give them a good idea as to what the current sensors look like and they will give you the correct advice. I really love my K 40.

 

Love my K40 , front and rear radar.
Front Laser Diffuser.
16k miles in 10 months, drove from Baltimore to LA, no worries!

 

+1 No issues with my setup. Sometimes it gets a little quirky and starts to beep parked in the garage/random times, usually just reset it and it's fine. Might happen once every two/three months thought.