Marine Autopilots without a Drive Unit

2 marine autopilots without a drive unit from Garmin, Raymarine and Simrad. Prices run $2,300 to $2,599.

B&G

Not included, NAC-3

+NAC-3 core pack includes feedback for steering position monitoring

+Newer NAC-3 core supports more advanced autopilot functions

+Core pack includes feedback for steering position monitoring

−Drive unit is not included and must be bought separately

$2,599.99

as of 11/04/2026 03:36 PST - Details

Simrad

Not included, NAC-3

+NAC-3 core pack paired with a Precision-9 compass for heading

+Core pack design fits a wide range of Simrad autopilot installations

−Drive unit is not included and must be bought separately

$2,299.99

as of 11/04/2026 03:36 PST - Details

Compare specs

marine autopilot	Drive in the box	Control head	Model line	Spec score	Price
	Not included		NAC-3	n/a	$2,599.99 as of 11/04/2026 03:36 PST - Details
	Not included		NAC-3	n/a	$2,299.99 as of 11/04/2026 03:36 PST - Details

Spec scores, pros and cons, and prices are explained in the How it works section of the About page.