Western Marine - Seastar

SeaStar Cylinders

Our standard SeaStar steerings are suitable for most inboard powered boats up to 44 ft with either single or twin engines, and for twin engine planing craft up to 50ft. The Cylinder is the muscle of the steering system. SeaStar Cylinders are designed for easy installation on either

CYLINDER DIMENSIONS (IN MOTION)

ATM INBOARD CYLINDERS

single or twin rudder (or stern drive) vessels, and come complete with bleeder fittings. All SeaStar Cylinders shown here are balanced for equal number of wheel turns for port and starboard.

TM INBOARD CYLINDERS

SPECIFICATIONS, VOLUME & CAPACITIES

Cylinder Model	SeaStar Number	Bore Diameter Inches(mm)	Nominal Shaft Diameter Inches (mm)	Stroke Inches (mm)	Area Square Sq.in(sq.cm)	VolumeCubic In (cc)	Torque(See Note)In/lb(kg/m)
BA125-7ATM	HC5312	1.25 (31.7)	.50 (12.7)	7 (178)	1.03 (6.7)	7.2 (118.2)	5025 (57.9)
BA135-7ATM	HC5313	1.375(34.9)	.625 (15.9)	7 (178)	1.18 (7.6)	8.3 (135.2)	5741 (66.1)
BA150-7ATM	HC5314	1.50 (38.1)	.625 (15.9)	7 (178)	1.46 (9.4)	10.2 (167.5)	7117 (82.0)
BA175-7TM	HC5319	1.75 (44.4)	.75 (19.0)	7 (178)	1.96 (12.7)	13.7 (225.4)	9569 (110.2)

CYLINDER DIMENSIONS

Part No.	Cylinder Model	SeaStar No.	BodyDiameter	ShaftDiameter	DIMA	DIMB
210636	BA125-7ATM	HC5312	1.38" (35mm)	0.50" (13mm)	20" (508mm)	6.5" (165mm)
210637	BA135-7ATM	HC5313	1.50" (38mm)	0.63" (15.9mm)	20" (508mm)	6.5" (165mm)
210638	BA150-7ATM	HC5314	1.75" (45mm)	0.63" (15.9mm)	20" (508mm)	6.5" (165mm)
210639	BA150-7TM	HC5318	1.75" (45mm)	0.63" (15.9mm)	21" (534mm)	8" (204mm)
210640	BA175-7TM	HC5319	2.00" (50mm)	0.75" (19.1mm)	21" (534mm)	8" (204mm)

More Seastar

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