What hydraulic steering suits a 1985 Boston Whaler 17 Montauk, and how do I fit it?
I have a 1985 Boston Whaler 17 Montauk and want to replace the cable steering with hydraulic steering. Which kit should I buy, where can I find it, and what should I check before fitting it?
Answer
A Dometic BayStar HK4200A-3 hydraulic steering kit is a sound first choice for a 1985 Boston Whaler 17 Montauk with a compatible single outboard within the kit's 150 hp limit. Match it to the engine's make, model and year, then confirm cylinder clearance and hose routing before ordering; the hull year alone does not establish compatibility.
Check the outboard and splashwell
Record the engine model number and check its steering arm and tilt tube. A Montauk this age may have its original two-stroke or a much newer four-stroke. These installations can need different cylinders or attachment hardware.
The classic Montauk 17 was commonly rated for up to 100 hp; confirm your boat's capacity plate. BayStar's 150 hp rating does not increase the boat's permitted horsepower.
- Engine compatibility: check the BayStar application guide for the exact outboard. Some older engines need alternative brackets or a different cylinder.
- Clearance: use the cylinder's installation drawing to check space around the splashwell sides, transom and engine clamps throughout steering and tilt travel.
- Tilt tube: inspect for corrosion and seized cable components. Removing an old steering cable can be the longest part of the job.
- Console: inspect the existing helm mounting area for cracks, enlarged holes and weakened backing.
Choose the kit and tubing
Search for kit designation HK4200A-3. The manufacturer's product search is https://www.dometic.com/en-us/search?q=HK4200A-3
A typical package contains a front-mounted helm, an outboard cylinder, hydraulic tubing and steering fluid. Confirm the seller's contents and cylinder designation before paying. BayStar packages commonly include two 20 ft cut-to-length tubing runs; other packages differ.
The 1.4 cu in helm typically gives roughly five wheel turns from lock to lock. A smaller-displacement helm reduces steering effort but requires more turns. Hydraulic steering removes cable friction and isolates steering feedback, but it does not provide power assistance.
Budget roughly US$900 to US$1,300 for a complete BayStar package, plus regional taxes, delivery and installation. Get a current quotation; this range is a budgeting figure.
BayStar is usually sufficient for an ordinary 70 to 100 hp recreational installation. Consider a compatible Dometic SeaStar system if you need an autopilot or your application falls outside BayStar's restrictions. Choose the cylinder, helm and hoses together using the relevant application guide.