Who do you use for genuine Ford parts?

[RangerVet]

'05 Ranger Edge, 2wd, 2 door 3.0 stick shift with around 67.000 miles in Western Arizona. I am having fun in the garage by slowly but surely replacing worn parts and those that I expect to be worn out soon. On to the O2 sensors.
I really like to use Ford parts to replace sensors but I hate to pay the rapists at the local Ford dealer. It looks like I need two upstream and two downstream sensors. Where can I get a decent price on Motorcraft sensors? I am able to get a 10% discount for being a Veteran at NAPA.
And why, oh why did they design this engine with four of the dang things?
I used the local upholstery shop to replace the lower bolster driver's seat section that gets worn with use. I almost needed a Credit Union loan to pay for that!
The truck is black and looks good from 10' away, The truck was used to haul hay before I got it and has a lot of scratches from running it through the fields. A local detail shop wants $325 to do a buff and shine. Does not need the hood or roof done though as I rattle canned them flat black. Bed has been coated so it does not need buffed either. Is that a decent price?

 

[racsan]

black is the worst to keep looking good, every flaw/scratch/blemish is so noticeable. I have no idea on detail shop pricing, it seems a bit much to me though. Looks nice. For sensors and such Id just go to napa- but anti-sieze the threads as you never know when/if they will need replaced again.

 

[Dirtman]

Many parts do not need to be Ford for the simple fact that Ford didn't even make them in the first place. O2 sensors are one of those things, Ford didn't make the OEM o2 sensors, Bosch did and Ford just slapped their name on them. So you can buy a Bosch sensor from any parts store for half the price and its still an OEM part.

Many parts are the same way. It's always good to use the OEM part but that doesn't always mean it has to be a Ford part.

 

[RangerVet]

Thank you!