Leaky faucet are their any parts replaceable relating to a leaky faucet

This is a question that is hard to answer without a make and model or where a picture is worth a thousand words. It is a two tap mixer, it is the O-ring at the base of the swivel neck.

Individual taps leak from the cartridge or the gland packing just below the handle.

How to Fix a Leaky Faucet

The Home Depot https://www.homedepot.com > how-to-fix-a-leaky-fau...
The most common sources of a leaking faucet - a worn out washer or gasket, a loose O ring, corrosion in the valve seat - can be detected and fixed easily with ...

How to Fix a Leaky Faucet

Family Handyman https://www.familyhandyman.com > ... > Faucets
How to Fix a Leaky Faucet ; Remove the Cap. Unscrew the cap by turning it counterclockwise with a slip-joint pliers. Step 4 ; Remove the Metal Handle Adapter.

How to Fix a Leaky Faucet

This Old House https://www.thisoldhouse.com > kitchens > how-to-sto...
Most leaky compression faucets need new seat washers. · Use a screwdriver to remove the handle screw, then pull off the handle. · Use a crescent wrench to unscrew ...

How to Fix a Leaky Faucet

Lowe's https://www.lowes.com > ... > How-Tos > Bathroom
Step 1: Disassemble the Faucet · Step 2: Remove the Valve Stem · Step 3: Install New O-Ring · Step 4: Replace the Valve Seat. ..

Leaky Elkay single handle kitchen faucet - DoItYourself.com ...

www.doityourself.com/.../292646-leaky-elkay-single-handle-kitchen-fau...

Can I replace the cartridge (A54236R) from our single handle Elkay (LK-6360) kitchen faucet without removing it from the sink top? If so where is the secret inhex ...

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www.youtube.com/how to fix a leaky faucet

If you really want to know, go to YouTube.com and type on " how to repair a bathroom faucet. "

from where is it leaking

The A-S single lever kitch faucet is terrible. If it is the one I think it is, then it has three screws that mount the cartridge down into the faucet body.If these are not torqued perfectly evenly, the faucet leaks. I suggest getting a Moen to replace it.

There is a allen set screw on the handle it may have a cap over it locate it and unloosen screw and remove handle then un screw bonnet nut then replacement kits available at most hardware,home improvement,or plumbing stores take note of how the parts are removed so to reinstall the way they came out.

You likely need to replace the Moen cartridge. There are clear instructions on how to proceed that come with the new cartridge.

delta is one of the better faucets, you can call them and they will send you new cartridges all you have to do is change them and you will be fine,, they have lifetime warranty on there products just give them the faucet number and they will send it to you

Finding brand specific replacement parts in stock for a 20+ yo faucet without a Mod.# is quite the task, implying that you would have to do a side by side compareson/inspection. If in fact that part is not obsolete.
Maybe you should consider replacing the entire faucet.
Good luck