Pretech Steering, Hydraulic Kits
STSF115-Bullhorn, 115HP, 5m Flex Hose Kit

SteerFlex SF-115 hydraulic steering kit (STSF115) Complete Pretech SteerFlex bullhorn hydraulic steering kit for a single outboard up to 115 HP. Mid mount helm for dashboards with limited space behind them. Maximum outboard115 HP, single engineHelm pumpKH18M, 18 cc, mid mountCylinderKC-115 front mount bullhorn, 94 cc, 323 kg force, 184 mm stroke, 14 mm piston rod, 2.1 kgHoses2 x CH-5.0 factory crimped, 5 mFluidKO hydraulic steering fluid, 2 LTurns lock to lock5.2Recommended wheel350 mmPorts9/16"-24 UNEFRelief pressure70 / 105 bar In the box: KH18M helm pump, KC-115 cylinder, 2 x 5 m hoses, 2 L hydraulic fluid, filling kit and installation guide. The helm has 9/16"-24 UNEF ports, 70 / 105 bar relief pressure, weighs 3.9 kg and uses a standard 3/4" tapered steering shaft. It needs only 5" of space behind the dashboard with a 3" hole. A 5 position tilt helm (0 to 48 degrees) is available as the T version.The cylinder is 569.4 mm overall with 9/16" UNEF ports, independent outboard tilt, grease fittings on the support bracket and an advanced sealing system. Also available as an I (inboard bracket) or N (narrow) variant.CH series 5/16" R7 thermoplastic hose with factory crimped end connectors, 70 bar / 1000 psi working pressure, polyurethane cover, rated from -40 C to +100 C. Other lengths (3, 3.5, 4, 4.5, 5 and 7.5 m) and RH series hose with reusable connectors are available to order. Outboard application guide (KC-115 cylinder) Honda 30 to 115 HP, 1992 to date: KC-115 / KC-115I (note A) Johnson / Evinrude 40 to 115 HP, 1991 to date: KC-115 / KC-115I (notes A, C) Mercury / Mariner 75 to 115 HP, 1984 to date: KC-115 (notes A, C) Suzuki 40 to 150 HP, 1986 to date: KC-115 / KC-115I (notes A, C) Yamaha 40 to 115 HP, 1986 to date: KC-115 (notes A, B) Tohatsu 40 to 115 HP, 1990 to date: KC-115 (note A) Selva 90 to 115 HP, 2000 to 2013: KC-115 / KC-115I (note A) Neander Marine Dtorque 111, 90 HP, 2017 to date: KC-115 Note A: the outboard clamp brackets may need to be cut or ground down and the outboard bolted directly to the transom to avoid trim and tilt issues. Note B: a Yamaha steering hook (part 63D-48511-00-00) must be installed. Note C: high performance 115 HP outboards and any outboard with a 4 3/4" gear case (such as Command Thrust) must use the SF-350 kit. Always verify the model year of your outboard and make sure the splashwell is wide enough for the cylinder before ordering. Related parts (sold separately)350 mm steering wheel, dual station kit, tiller plates, tie rod kit TRX, cylinder seal kit SKH-115, helm seal kit SKH, support brackets SB, air bleed plugs AB, hose fittings and hydraulic steering fluid KO. See our Pretech SteerFlex accessories listing.Please contact us on 0800 273 9180 if you need help confirming this kit suits your engine.

he three Pretech SteerFlex bullhorn hydraulic steering kits we stock are engineered for recreational, commercial and fishing vessels. Built with advanced technology and superior craftsmanship, these steering solutions are designed for smooth handling, durability and maximum safety on the water. Every system is tested rigorously to meet stringent quality standards and comes with reliable warranty... Read more about the Pretech Steering, Hydraulic Kits