Stihl oil pump upgrade Replaces Part Number: 1123 640 3201. This pump draws oil from the tank and pushes it up into the bar, where it lubricates the spinning chain. $32. The 25" light bar handles most everything else but I have a 32" Tsumara light bar For those of you that have also upgraded their 362/460 saws, did the HO control bolt (1128-647-4803) alone add much oil on top of the standard 460 oiler? Stihl Oil Pump - Worn Out? SteveSr; Jan 19, 2025; Chainsaw; 2. Do I just get the whole oiler pump? What components are needed for change over? If it had the oil hole, then there is a very good chance you can upgrade it to the pro pump, but there are a bunch of parts - new clutch drum etc The easiest way to upgrade it is to put in a pump from a non-adjustable 026. 88, 08. Thanks . 53. SAWMIKAZE, Mar 27, 2021 #14 Top. The 25" light bar handles most Proline® performance oil pump for Stihl MS271, MS271C, MS291, MS291C chainsaws. iaysgyjstlhkedtjsxrjyzvgtrunpvcbelqpervqifwnftywfntfiocrtuudpmieywxdd