Brand new BSA alloy finned sump plate with magnetic drain plug, one gasket and 4 long studs. ALSO included are 4 reduced hexagon 1/4" 26tpi nuts and 4 washers. Long studs are considered the best option for fitting the sump plate.

For BSA 'A' series; Pre-unit twins; A7, A10, RGS models. Unit twins; A50 (Can fit A65 but needs machining out to accommodate aftermarket filter gauze).
BSA unit singles except C15 & B40.
B25 - This sump plate has found to line up with the holes on a B25 Starfire and B25SS Goldstar, but not using an aftermarket gauze filter (supplied separately (even the correct B25 aftermarket gauze filter)). In order to accomodate an aftermarket filter, the rim of the crank side of the sump plate needs machining out, just like the A65 model.
The A7/A10 gauze filters do not fit the B25 because the scavenge pipe is a different size and in a slightly different location. A gauze filter is not supplied with this item.

Good quality.

PLEASE NOTE: Sump plates now only come with one gasket.
To replace BSA part number 67-1285 and 41-0620.  (B25 sump cover 67-1286).


I also stock this sump plate with the aftermarket filter; ebay item number: 293411392702.

I also stock the gauze filter on its own, search ebay item number: 303434517753.


A65s may require machining -  If using original filters there should not be a problem . However if used with aftermarket filters, then machining would be required.
Aftermarket gauze filters have a lip on that does not fit flush with the sump plate. Therefore the large hole in the sump plate requires a small amount of machining to accommodate it.
If you are unsure or do not have the knowledge/expertise to undertake any machining then please do not buy. Once the sump plate has been damaged in anyway, it cannot be returned.

Nooky's Nuts have been trading cycle thread and bsf nuts, bolts and washers for many years at autojumbles across the country.

Nooky's nuts now have a website.


If you purchase multiple items, we will weigh the items and invoice accordingly, however if it is heavy, there may not be a discount, if it is light, then there possibly will.  We will try to make p&p as low as possible. However bear in mind that the postage cost paid is for packaging also.