Filling valve spares parts for the following BSA air rifles:
– Ultra & SE
– Scorpion & SE
– Ultramax
– Buccaneer
– Hornet
– Lonestar
– Techstar

Please note: earlier rifles may not have the steel ball design, please click here to see the other design.

If your airgun is leaking just from the fill port area you can easily service this area without the need to do a complete service on the rifle. The possible parts required can be found on this page.

Commonly replaced parts (available in the dropdown):
– O ring (outer and inner) – BSA ref: 16-6537 and 16-7433 (sold in pack with 2 of each)
– Inlet Valve Steel ball bearing – BSA ref: 16-7434
– Quickfill Bush – BSA ref: 16-7078
– Inlet filling valve spring – BSA ref: 16-7435
– Plug – BSA ref: 16-6539

It is also possible to replace the total unit, which includes the large brass inlet at the top left of the picture (BSA Ref: 16-6519). This total unit can be purchased to upgrade rifles with the older ‘plunger’ style fill system to the newer more reliable ball style.

Video below