SI-TEX SP-70 Autopilot w/Pump & Rotary Feedback w/ 18CI pumpset

The SI-TEX SP-70 Autopilot with Pump & Rotary Feedback and 18CI pumpset is a marine-grade steering automation system built for anglers and cruisers who demand hands-free vessel control. After years of fighting the helm on long runs and while rigged up on the gunwale, you know how fatigue compounds when chasing fish or holding course in variable conditions. This system eliminates that burden, maintaining steady heading so you can focus on navigation, fishing, or crew coordination.

The SP-70 combines a hydraulic pump unit with rotary feedback sensing to deliver precise, repeatable autopilot performance across freshwater and saltwater applications. Rotary feedback technology continuously monitors actual rudder position and corrects deviation in real time, ensuring tight course-holding even in beam seas or cross-current drift. The integrated 18CI pumpset provides reliable hydraulic actuation compatible with most modern and legacy steering systems, weighing 22.75 pounds and measuring 19 by 6 by 20 inches—compact enough to fit in engine compartments or below-deck electronics bays without consuming critical cabin space. SI-TEX's design prioritizes durability: sealed pump assemblies and stainless fasteners resist corrosion from saltwater spray and washdown exposure.

This autopilot excels for weekend anglers running offshore tournaments, commercial guides working full-season schedules, and cruising boaters covering blue-water passages. Installation pairs with SI-TEX navigation displays and existing boat wiring harnesses, though professional marine electricians typically handle integration to ensure pump priming, pressure calibration, and feedback tuning. Verify your vessel's steering system type—hydraulic cylinders or rotary vane units—before purchase, as pumpset compatibility depends on actuator configuration and fluid pressure rating.