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  Electric Motors, Engines & Accessories > Components - R/C Engine > Mufflers - R/C Engine [View Top Sellers for this Category] Bookmark this Page

O.S. - OSMG2840 OSM29525000 29525000 531028129320 4531028129320
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  Tech Notes

Parts Compatibility

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O.S. Muffler #E4020 91FX
O.S. Muffler #E4020 91FX
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Quantity Discount
  Special Savings When Buying in Quantities
Special Stock Number Units at this Price Tower's Low Price Click to Order Quantity Discount Savings
O.S. Muffler #E4020 91FX Add to Wish List
89.76  Buy Now 4.22  
O.S. Muffler #E4020 91FX Add to Wish List
133.92  Buy Now 7.05  
O.S. Muffler #E4020 91FX Add to Wish List
222.05  Buy Now 12.90  

Tech Notes
               This is the Muffler for the OS MAX 91FX Engine.

FEATURES: Mufflers Have Aluminum Construction. Expansion-Type Design for Maximum Muffling.

INCLUDES: One Muffler Two 4 x 40 mm Muffler Mounting Screws

FEATURES: Muffler Comes Pre-Tapped.

REQUIRES: Exhaust Gasket OSMG6014

SPECS: Center to center of mounting holes: 43mm Rectangular exhaust port: 29.5 mm x 9.0mm

NOTE: Do not use on the 61SF and 61FX, this muffler will not provide enough back pressure for proper operation.

For muffler extensions use: OSMG2582 15mm OSMG2586 35mm OSMG2598 90 srd 3/26/9 ir/jl updated tjt 041504 updated mcw 2/9/05 updated tjt 042905 updated jpg 3/29/07

– If you need more information, use these O.S. resources –
Web Site:
Phone: 217-398-8970
  Postal Address:

Click here for Units of Measure Conversion Calculators

Parts Compatibility
Parts Compatibility for O.S. Muffler #E4020 91FX
This item is a replacement part for the following:
 LXBY47 O.S. 91FX Airplane Engine Ringed w/Muffler  (Parts List)

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