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O.S. - OSMG3817 OSM21884000 21884000 531028136656 4531028136656
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O.S. Carburetor #11J Rotary 18CV-R/RX
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O.S. Carburetor #11J Rotary 18CV-R/RX
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Tech Notes
This is the O.S. 11J Complete Rotary Carburetor used on the following engines;
11870 .18CV-R W/11J Rotary Carb
11880 .18CV-RX W/11J Rotary Carb
11860 .18CV-RX(S) W/11J Rotary Carb


Genuine O.S. Max Replacement Parts


One Complete 11J Rotary Carburetor (Key# 7) w/O-Ring OSMG6220


OSMG3815 21818000 Carb Retainer


Length: 0.7" (17.0mm)
Width: 1.7" (44.2mm)
Height: 1.4" (35.8mm)
Diameter: 0.6" (16.3mm) OD of intake (throat)
0.42" (10.6mm) ID of intake @ widest point (top)
0.3" (7.0mm) ID of intake @ narrowest point (bottom)
0.43"(10.9mm) OD of neck (part that inserts into crankcase)
0.3" (8.4mm) ID of neck @ widest point (bottom)
0.27" (7.0mm) ID of neck @ narrowest point (top)

tjt 051904

– If you need more information, use these O.S. resources –
Email: enginesupport@hobbico.com
Web Site: http://www.osengines.com/
Phone: 217-398-8970
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Parts Compatibility
Parts Compatibility for O.S. Carburetor #11J Rotary 18CV-R/RX
This item is a replacement part for the following:
 LXKGR1 O.S. 18CV-RMX ABC Marine w/Pull Start  (Parts List)
 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)
 LXGMN8 O.S. Carburetor #11G Slide 18CVR  (Parts List)

This item is an optional part for the following:
 LXGGP6 O.S. 18CV-RX ABC w/11G Slide Carb  (Parts List)

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