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O.S. - OSMG2408 OSM21884010 21884010 531028137585 4531028137585
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O.S. Carburetor #11L Rotary 18TZ-TX
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O.S. Carburetor #11L Rotary 18TZ-TX
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Tech Notes
This is the complete 11L Rotary Carb used on the following engines:


Genuine O.S. replacement parts


One complete 11L carb
One rubber carb gasket OSMG6220


Installing on engine


Length: 1.2" (31mm) approx. including needle and idle stop screw
Width: 1.8" (46mm) approx. including needle and throttle arm nut
Height: 1.6" (40mm) approx. including needle
Diameter: 0.64" (16.3mm) OD of intake (throat)
0.45" (11.5mm) ID of intake @ widest point (top)
0.28" (7.04mm) ID of intake @ narrowest point (bottom)
0.51" (12.96mm) OD of neck including thermo insulator
(the part that inserts into the crankcase)
0.28" (7.05mm) ID of neck @ narrowest point (top)
0.33" (8.58mm) ID of neck @ widest point (bottom)


Carb can be identified with an "11L" on the back side of carb body

tjt 032905
updt jxs 5/24/05

– If you need more information, use these O.S. resources –
Email: enginesupport@hobbico.com
Web Site: http://www.osengines.com/
Phone: 217-398-8970
  Postal Address:

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Parts Compatibility
Parts Compatibility for O.S. Carburetor #11L Rotary 18TZ-TX
This item is a replacement part for the following:
 LXGGP7 O.S. 18CV-RX ABC w/11J Rotary Carb  (Parts List)
 LXGGP8 O.S. 18CV-RX (S) ABC w/11J Rotary Carb  (Parts List)
 LXHLV9 O.S. 18TZ-TX ABC Turbo w/11L Rotary Carb  (Parts List)

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