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Mechman high output alternators · Authorized dealer
A wake boat at the sandbar asks a lot of its charging system: tower speakers, ballast pumps, lighting and a stereo that plays between pulls. This collection gathers the Mechman marine high output alternators we list for ski and wakeboard boats, in 170 and 250 Amp, for 11SI and 12SI bolt patterns and for GM LS/LT and Ford T-mount marine V8s.
Each marine high output alternator here is listed by engine family and bolt pattern rather than by boat brand. The finder at the top of the page narrows the list to your application. Match engine, bolt pattern, pulley type and rotation before you choose.
A 170 Amp marine high output alternator suits a boat with a moderate tower system, lighting and pumps. 250 Amp Large Case units are for boats running several amplifiers and heavier accessory loads, where recharging between sets matters. Boats spend long stretches at low engine speed with the stereo playing, so plan output around your real accessory load, not the minimum that gets you home. If your 12SI-pattern engine needs reverse rotation, check the reverse rotation 170 Amp unit.
More output only helps if the batteries can take it. Look at our batteries, including AGM batteries, and run heavier cable between alternator, batteries and ground with amp wiring kits. To compare road vehicle units, browse all alternators.
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Shop Pay Installments: Rates from 0-36% APR. Payment options through Shop Pay Installments are subject to an eligibility check and are provided by these lending partners: affirm.com/lenders. Options depend on your purchase amount, and a down payment may be required. Snap: The advertised service is a lease-to-own agreement provided by Snap RTO LLC. Lease-to-own financing is not available to residents of Minnesota, New Jersey, and Wisconsin. ¹ Not all applicants are approved. While no credit history is required, Snap obtains information from consumer reporting agencies in connection with submitted applications, and your score with those agencies may be affected. Sezzle: Issued by WebBank or Sezzle. See loan agreement for details. Refurbished items are not eligible for financing or leasing.
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