As an Amazon Associate, we earn from qualifying purchases. OS Engines Carburetor Complete: 21M2, R21 | Horizon Hobby OS Engines . OSMG2463 Gallery Attributes Brand name, Manufacturer name, ManufacturerOS Engines Extra Product NameOS Engines Carburetor Complete: 21M2, R21 | Horizon Hobby moq, multiple, tierMinQty11 MPNOSMG2463 qtyInStock0 SKU2B981000 tierPrice1152.25 Distributor offers SellerSKUMOQIn stockMultiplePrices horizonhobby.com2B981000111 @ $152.25