TECH NOTES This is the Front Bearing for the following engines: -25 VF ABC -21 SE-M ABC -25 VF-DF ABC -61 RF-HS w/cone -21 SE-B ABC -21 RF-B ABC -21 SE-R ABC INCLUDES: One Ball Bearing SPECS: Inner Diameter: 9mm Outer Diameter: 20mm Thickness: 6mm Bearing Markings & details: JAPAN NTN 599Z 5/19/93 ir/jl   […]

TECH NOTES This is the Piston Pin for the 40FP, 40LA, and FS-40 Surpass OS Max engines. FEATURES: Polished Metal Construction INCLUDES: One Piston Pin Two End Pads REQUIRES: None, item is a stock part SPECS: Length: 18.4mm (.73″) Diameter: 5mm (.20″) COMMENTS: End Caps are only available with this set.

TECH NOTES This is a Rear Crankshaft Ball Bearing for the following Engines: 25F ABC #12630 32F #12920 32SX #12970 25FSR #12615 32F-H #12900 32SX-H #12950 28F #12710 32F-HS #12910 32SX-H Ring #12956 28F-H #12700 32F-HX #12930 32SX-HX Ring #12960 28F-H ABC #12704 32F-MX #12940 21RG #13610 21RG(P) #13611 21RG(P)-X #13612 FEATURES: This is an […]

TECH NOTES This is a Replacement Gasket Set for the O.S. 21RG and RG(P) Engines. INCLUDES: One Head gasket – This very thin brass gasket seals the gap between the cylinder head and the crankcase. One Backplate gasket – This thin paper gasket seals the gap between the backplate and the crankcase. SPECS: Head Gasket: […]

TECH NOTES These are the Muffler Extension Screws for the #873 Muffler Extension OSMG2578 FEATURES: Black steel construction INCLUDES: Two 3x50mm black steel cap head screws w/.5 pitch threads REQUIRES: A 2.5mm hex wrench to install KrH 10-14-93 complete update tjt 042805   BOX DIMENSIONS: 2.13″ W. X .25″ H. X 3.50″ L.

TECH NOTES This is the replacement carburettor screws for the OS .46VX-M 2-stroke marine engines. FEATURES: allen head machined screws INCLUDES: 2-3x10mm screws COMMENTS: These are the screw the hold the carburettor to the crankcase. mgc 1196   BOX DIMENSIONS: 1.50″ W. X .25″ H. X 3.50″ L. BOX WEIGHT: .01 LBS.

TECH NOTES This is the Rear Ball Bearing for the OS Max .40, .45, .50 FSR Engines. INCLUDES: One Rear Ball Bearing SPECS: Bearing Markings & details: JAPAN TC NTN 6902AC3 Inner Diameter: 15mm Outer Diameter: 28mm Width: 7mm ir/jl  THIS PART IS COMPATIBLE WITH THE FOLLOWING KIT(S) 46AXII and GGT10 BOX DIMENSIONS: 2.13″ W. […]

TECH NOTES This Bearing is used in the following OS Max Engines: – 40 SF – 61 RF ABC HANNO – 50 FSR-H – 46SF – FS-70 Surpass – 61 SFN-H W/6B carb – 46 SF-P – FS-91 Surpass – 61 SFN-H ABC W/6B carb – 50 FSR – FT-120II Twin – 61 RF-H – […]

TECH NOTES This is the Front Bearing for the OS 61FX Engines. FEATURES: Steel construction Shielded front (to prevent fuel leakage) Open back (to allow oil in fuel to lubricate balls) INCLUDES: One Ball Bearing REQUIRES: Installation into crankcase SPECS: Inner Diameter: 12mm Outer Diameter: 24mm Thickness: 5.5mm COMMENTS: This is the bearing that sits […]

TECH NOTES This is an OS Max Bearing for many engines such as: 61SF, 61SFN, 61FX 91FX FT300 FR5-300 INCLUDES: One Rear Bearing _ SPECS: Inner Diameter: 17mm Outer Diameter: 35mm Width: 8mm Bearing Markings & details: JAPAN UX NTN 18003 5/19/93 ir/jl   BOX DIMENSIONS: 2.13″ W. X .38″ H. X 3.50″ L. BOX […]

TECH NOTES This is the Cylinder Liner for the OS Engines FS155A-P Engine (OSMG0998). FEATURES: Steel construction INCLUDES: One cylinder liner – key #19 REQUIRES: Installation into engine crankcase SPECS: Length: 45.5mm (1.79″) Outer Diameter: 36mm (1.42″) Inner Diameter: 33mm (1.3″) lmm 3.15.11 ir/jxs   BOX DIMENSIONS: 2.00″ W. X 1.75″ H. X 3.50″ L. […]

This is the replacement drive washer for the FS-120 OS engine. PACKAGE INCLUDES: 1- Drive washer (aluminum) 1- Woodruff key SPECS: Diameter face: (34mm) Engine side diameter: (31mm) Inside diameter: (12mm) Width: (14mm) approximately 5/8″ sek/3-31-94   BOX DIMENSIONS: 2.13″ W. X .63″ H. X 3.50″ L. BOX WEIGHT: .06 LBS.

  TECH NOTES This is a replacement locknut and washer set for the FS90 and 120surpass and the 120 surpass w/o pump. . Features: This helps keep the propellor stay on the engine in the case of backfire or detonation. The inner nut screws into the outer and locks it in place. Includes: 1- inner […]

This is a Rear Bearing for the OS Max 108-160 Engines. INCLUDES: One Rear Ball Bearing SPECS: Inner Diameter: 20mm Outer Diameter: 37mm Width: 9mm Bearing Markings & details: Japan NSK 6904 5/19/93 ir/j THIS PART IS COMPATIBLE WITH THE FOLLOWING KIT(S) 120AX     FT160             and  FF-320 Pegasus 4-Cyl Ringed 4-Stroke

OS Engine 26525503 .60FSR – H HELICOPTER MOUNTING SCREWS

OS OS ENGINE #71704000 SAFETY REMOTE NEEDLE VALVE MOUNT KIT FOR 10FP-40FP