My Lippert hydraulic pump is leaking fluid at the O ring. I called lIppert and was advised that I would have to buy an entire pump; they do not sell replacement parts. The receptionist wanted my full name for their records when/if I call for further assistance.I advised her there was no need for that information because I would never call back.I don't see any model or other identifying numbers on the hydraulic pump, but it appears the O ring is about 4 inches in diameter.Can anyone advise a corresponding aftermarket O ring?I was thinking maybe take the O ring to NAPA for matching.TIA

Most any larger city should have a seal and gasket supply house. Take it to them. Should tskr them about 3 mintes to match it up for you.Lippert had some issues a few years ago with warped flanges. How old is yours?

You should add your location to signature.There should be some markings on pump. Lippert replacement pump discription may have some idea who makes the pump.A hydraulic shop should have selection of O-rings.

Sundance47 wrote:My Lippert hydraulic pump is leaking fluid at the O ring. I called lIppert and was advised that I would have to buy an entire pump; they do not sell replacement parts.It's the common Lippert modus operandi.

You might do better by going to a bearing/seal/o ring supply house such as United technologies. Search bearing supplier, hydraulic shop, cylinder rebuilding.Clean the parts up and take them with you. They will usually have a vernier etc on hand to measure shafts and bores. Some places are strictly give us a part number types vs some places are hands on and help figure out what you need. Sometimes quantities may be a package of 5 or 10

Hydraulic Lippert O rings | Good Sam Community

2oldman
Explorer II
Nov 28, 2018
Try etrailer.com
donn0128
Explorer II
Nov 28, 2018
Most any larger city should have a seal and gasket supply house. Take it to them. Should tskr them about 3 mintes to match it up for you.

Lippert had some issues a few years ago with warped flanges. How old is yours?
enblethen
Nomad
Nov 28, 2018
You should add your location to signature.
There should be some markings on pump. Lippert replacement pump discription may have some idea who makes the pump.
A hydraulic shop should have selection of O-rings.
Ralph_Cramden
Explorer II
Nov 28, 2018
Sundance47 wrote:
My Lippert hydraulic pump is leaking fluid at the O ring. I called lIppert and was advised that I would have to buy an entire pump; they do not sell replacement parts.

It's the common Lippert modus operandi.
azrving
Explorer
Nov 28, 2018
You might do better by going to a bearing/seal/o ring supply house such as United technologies. Search bearing supplier, hydraulic shop, cylinder rebuilding.

Clean the parts up and take them with you. They will usually have a vernier etc on hand to measure shafts and bores. Some places are strictly give us a part number types vs some places are hands on and help figure out what you need. Sometimes quantities may be a package of 5 or 10
Edd505
Explorer
Nov 28, 2018
My local hardware store carries a big supply of O rings
wanderingaimles
Explorer
Nov 29, 2018
A rental agency for commercial equipment (lifts, digging equip, etc) is another option. Since they rent machines from many manufacturers they carry a variety of types and sizes.
garyemunson
Explorer II
Nov 29, 2018
Before I retired making o-rings was a common task for ancient hydraulic elevator valves. Info below.

https://www.zoro.com/zoro-select-standard-splicing-kit-buna-n-5-pieces-1rha2/i/G1487044/feature-product?gclid=EAIaIQobChMIvsrr-7r53gIVjiCtBh0-GgtkEAQYBCABEgJlDvD_BwE

https://www.youtube.com/watch?v=RKnC2yHyuyI
ChuckSteed
Explorer
Nov 29, 2018
QN70348 from Global o-ring

Cross Section .210''
Inside Diameter 4.350''
Outside Diameter 4.770''
Nominal CS 3/16
Nominal ID 4-3/8
PhoneDude_8289
Explorer
Nov 30, 2018
A hydraulic shop will have what you need. I have bought "O" rings from small for faucets to large 4"+ for canister fuel filters to large water filters from a local hydraulic shop. Cost was from a dime to little more than a dollar. A hydraulic shop could also rebuild your pump and pistons should you need that.