Parts/Engines & fuel/Engine accessories/O.S. .12/.21 Induction Silencer On-Road Air Filter System
O.S. .12/.21 Induction Silencer On-Road Air Filter System
O.S.

O.S. .12/.21 Induction Silencer On-Road Air Filter System

Part # OSM724140004.0(1)
Where to buy
$39.99
AMain Hobbies
Seen Oct 12, 2026
$39.99Buy
Prices are as last seen at the store; stock is not tracked.

About this part

This is an optional O.S. Induction Silencer. This EFRA/IFMAR approved silencer was developed for .12 - .21 class on-road engines to help reduce noise levels, while at the same time having very little affect on power output.

Includes:
  • Upper and lower plastic cups
  • Rubber base with foam element
  • Zip tie
  • Instruction sheet
  • (4) 2.6x8mm countersunk screws

Specifications:

Diameter: 1.9" (47.5mm)
Height: 1.96" (50mm)
Weight: 0.67oz (19g)

NOTE: Uses OSMG2351 replacement Foam Filters.

Reviews4.0 · 1 review

D.K.Verified owneron O.S. .12/.21 Induction Silencer On-Road Air Filter System

This thing is awesome because it really cuts down on dirt prior to hitting the filter. It is a little expensive, though.

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