OS Engines 91HZ-R #18640 Two-Stroke Nitro Helicopter Engine (Used)

OS Engines 91HZ-R #18640 two-stroke nitro helicopter engine for RC helicopter use. This item is listed in used condition; check the listing for details on run time, included parts, and any cosmetic or functional wear. The description provided does not specify accessories (such as muffler, carburetor, or mounting hardware), so confirm what is included before purchase. Price is $375.00 USD. Free shipping is included, with delivery speed and carrier depending on the seller’s handling and service options. Review photos and seller notes to verify the exact condition and contents.

USD 375.00
Condition: see listing
LocationSacramento US
ShippingFree shipping (check listing for details)
Seller racingstripe
99.7% positive · 602 feedback
ListingFixedPrice · Active
Start time2026-03-12T14:22:48.000Z
View on eBay Read review
OS Engines 91HZ-R #18640 Two-Stroke Nitro Helicopter Engine (Used) Specs
BrandO.S.
Compatible BrandFor OS
Compatible Vehicle TypeHelicopters
Model91HZ-R
Compatible Fuel TypeNitro & Glow Fuel
MPN18640
Age Level17 Years & Up
Compatible Scale1:4, 1:5, 1:6, 1:8, 1:10, 1:12
Country of OriginJapan
Listing details

OS Engines 91HZ-R Two-Stroke Nitro Helicopter Engine ** NEW Condition **It does not appear that this engine was run or installed. It doesn't look like a muffler was installed either.Includes the check valve and a copper exhaust gasket.Thanks for looking! When purchasing multiple items, combine purchases for a shipping discount. *** If you are charged for shipping for additional items when you check out, I will refund the shipping charge(s). ***For international shipping select from eBay international shipping or USPS First Class Package International. For Ebay International Shipping, please note:- Your country may assess an import duty/tax on your item(s) and the selling price of the item(s) will be used in the customs declaration.- Import duty and/or VAT may be assessed at time of delivery.- Please check the customs/duty/VAT policy for your country prior to making your purchase.