Genuine ROTAX Parts

L – Klueber Isoflex Topas Nb5051

a - See SB-914-023 current issue;
b – Wil be delivered in circle shape;
c – Standard starter 0.7 kW;
d – Washer, lock washer and hex. nut replaced by hex. collar nut

B – Loctite 243
C – Loctite 648
O – Engine Oil

B – Loctite 243
C – Loctite 648
L – Klueber Isoflex Topas Nb5051
O – Engine Oil
P – Loctite 5910

a – marked with S/N; 
b – Only for model 2 and 4; 
c – Tolerance group "C" 1.820 - 1.829 mm;
d – Tolerance group "D" 1.830 - 1.839 mm; 
e – Depending on configuration use 14 studs P/N 840752 M8x201 or 8 studs M8x201 and 6 studs P/N 840754 m8x210;
f – See Overhaul Manual of the respective engine type, current issue;
g – Only for use with new cylinders 913221 with countersunk. With the cylinder 913225 the countersunk was already introduced starting from beginning of the production;
h – See the following Service Instruction current issue SI-914-021.

L – Klueber Isoflex Topas Nb5051

Positions 6-8 are non-certified parts.

a – See also Service Bulletin SB-912-028 / SB-914-016 current issue

B – Loctite 243
E – Loctite Anti-Seize 15378

AR – As required

e – For cylinder head;
f – For EGT sensor;
g – For exhaust gas temperature (EGT);
h – For thermo couple NiCr-Ni K;
i – Stainless, for EGT sensor;
j – With service reset button and USB-connector;
k – See Service Instruction SI-912-020 / SI-914-022 current issue

B – Loctite 243

AR – As required

a – Short version, marked with S/N;
b – Edition Diamond, marked with S/N;
c – See Service Instruction SI-912-020 / SI-914-022 current issue;
d – See Service Bulletin SB-912-039 / SB-914-029 current issue; e – See Service Bulletin SB-912-043 / SB-914-029 current issue;
f – Same outline dimensions and brackets as TNr. 995698, but with improved cooling performance (18% bigger cooling surface);
g – Use together with P/N 997083, for retrofit instead of radiator P/N 997082