THIS LISTING IS FOR A O.S FS-40 SURPASS 4 STROKE NITRO ENGINE IN USED CONDITION I HAVE OWNED THIS SINCE NEW AND HAD IT MANY YEARS IT HAS BEEN USED IN A MODEL RAILWAY LOCOMOTIVE IT IS TOO BIG FOR THE LOCO, AS IT STICKS OUT THE ROOF, SO HAVE SWAPPED OUT FOR AN OS FS 20 (HALF THE PHYSICAL SIZE) COMES WITH A GLOW PLUG & EXHAUST WITH AERO TIP EXHAUST HAS A KINK IN IN (SEE PICTURES) WHICH DOES NOT AFFETC RUNNING IN ANY WAY. THIS WAS CAUSED BY A MODIFICATION TO THE EXHAUST SYSTEM TO USE INSIDE THE LOCOMOTIVE, THIS HAS NOT BEEN CRASHED OR SEEN FLIGHT NO LONGER MANUFACTURED TRACKED POSTAGE PLEASE CHEXK OUT MY OTHER RC ITEMS FOR SALE
