Washers and O rings

Sump plug washer

F650CS, F650GS single and twin cylinder

F800 all models

Associated BMW No.11417652949

Tom Says: "This should be changed every oil change as it is a crush washer after all, yours has been crushed!!"

Oil filter cover 'O' ring

F650 Funduro/Strada/CS/GS single cylinder only

Associated BMW No. 11417654013

Oil filler cap 'O' ring

F650 Funduro/Strada only

Associated BMW No.11412345022

Oil drain plug washer

F650 funduro and strada only

Associated BMW No.46512345500

Tom says: "This should be changed every oil change as it is a crush washer after all, yours has been crushed!!"

Cam chain tensioner washer

F800, all models

F650, all models

Associated BMW No.11312343091

Tom says: "This only needs replacing if you have to adjust the valve clearences, as you have to remove the cam chain tensioner to do so. It needs checking every 6000 miles"