Apologies for the terse answer I made earlier.I hear the "costs more @ the dealer" line/whine weekly.
Not poking fun @ anyone here but,there's more to it.
For the years that I was a counterman/manager for a NAPA store (late eighties thru mid-nineties) we needed to operate at an average gross profit,well our target anyways-kind of a pie in the sky dream usually,of 45%.In a store that grossed $125,00/month we'd end up with,after expenses,under 5k in net profit.
At the GM dealership I've worked in for the last several years we do about the same gross $$$ but w/a GP of under 25%.Personally,I rarely see 23% GP/month.
A different perspective?My NAPA store had two managers,6-7 counterpeople,4-5 drivers,& an in-store inventory of way under a quarter million dollars.We also did have a huge warehouse w/over 95% part number coverage only a half hour away.
OTOH,the dealership I frequent has a mgr,an asst.,& three parts guys.We also have one driver & a shipping/receiving dude.Sounds like a better ratio,yes?We also have over a million dollars in inventory to pay for-and still have to order about a third of the parts we sell daily.Oh & our main warehouse is three hours away & we get billed for shipping.Because we are a medium duty(bigger commercial trucks)dealer we also get parts shipped in via Fed Ex ovn & ground daily from warehouses accross the US & Canada.We get billed for the shipping on those too.
A few years ago we called a Tuffy shop across town to compare a brake job for a (then) few year old newer body style GMC.Our labor rate was higher,the cost of our brake pads was higher,& our rotors were noticeably more expensive.
IIRC,it went something like:
our labor -$70/hr. theirs $40
our pads $65.theirs,$39.99
our rotors $125.theirs <$90
That said,we have GM trained primadonna technicians-they have Bubba.Our pads are O.E. replacements-ie.the same as the truck was built with.Theirs?Under $10/set-sometimes waaay under.I know because I sold pads to Tuffy when I worked at NAPA.Same w/the rotors,ours are identical to what the truck was built with & theirs were made in the Peoples Republic of Budha Budha.
There's more than just dealer gouging(though that certainly happens for a few reasons,not just greed) that makes a part cost more @ the dealer.