Where to buy o-rings and flat nylon washers for throttle body fuel lines for cheap?

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Gander

Full Access Member
Army
Joined
Aug 27, 2025
Posts
118
Reaction score
149
Location
Dirty Bay, TX
First Name
Lawrence
Truck Year
1987
Truck Model
V10
Engine Size
350 TBI
If you know TBI then you know just what I mean. The o-rings I know you can get in an assortment for $10 at oreillys but that’s a bit steep for just 2 o-rings. The flat washers are ridiculous, can’t find those except in a rebuild kit which is something like $60-$70 bucks. I’d like to buy a bunch for cheap just to have. Seems like every time I take them off I have to put new on before putting it back together and those little flat washers love to pop off and get lost on the garage floor.

BTW, anyone having the starts fine cold or hot but sitting 30 minutes warm starts and dies immediately? Replace those o-rings and washers and the fuel pressure regulator. Worked for me.
 

bucket

Super Moderator
Staff member
Moderator
Joined
Aug 3, 2010
Posts
35,095
Reaction score
43,613
Location
Usually not in Ohio
First Name
Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
I've never purchased from this company (yet) but they have o-ring packs.

 
Top