In another threads someone posted a URL for looking up Goodyear part numbers (thank you). I looked up my truck, a 1999 F 150 with 4.2 L, and got 4060835 (metric 6Pk2120) Since it is a 6 groove belt I assume that the 6P and the 406 refer to the 6 groves. Do the ending numbers (835 and 2120) translate into the length in inches (83.5) and millimeters (2120)?
TIA
Mike

 

I am a truck and coach mechanic, and have had to convert like this before. You are right, the 835 is inches and 2120 is mm's.

 

Thanks. Gates appears to use a similar system.

 

I just posted this in another thread... here you go...

www.goodyearbeltsandhose.com/cars/gatopoly.html

 

Exactly what I was looking for. Thank you very much.