Fuel Pump For KTM 950 SM 950 Supermoto 950 ADV ORG 950 Adventure 60012088100 (Fits: KTM 950) $44.85. Was: $49.29. Free shipping. or Best Offer. Oddometer: 7. Location: Los Angeles. 2007 KTM 990 Adventure Fuel Pump O-ring Sizes. Smaller o-ring (radial seal): 60 mm x 3 mm buna-n. Larger o-ring (face seal): 65 mm x 3 mm buna-n. I just about finished painting and re-assembling my 990 (long story) but I sliced the radial seal o-ring on the fuel pump while trying to re-install it. slQsiZ.