$186 is what Mazda says the MSRP should be. $112 is what the part costs the dealer to buy it from MazdaWhen you say "dealer cost", do you mean that is the price your dealer pays, or the price for the consumer? This Mazda dealer is selling it for $186.61, which is the MSRP. 2014 Mazda CX-5 Tensioner, belt'v'. Beltv - PE0315980A | Jim Ellis Mazda Parts, Marietta GA
The identical RockAuto part is a fraction of the price.