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Mechman high output alternators · Authorized dealer
The RL was Acura's flagship sedan, packed with power seats, navigation, climate controls and a premium sound system. Many are now well past 100,000 miles, and an aging alternator is a common repair. Replacing it with an Acura RL high output alternator fixes the problem and leaves room for a tasteful audio upgrade. This page covers 2005-2012 RL models.
Many RL owners shopping this page are not building a sound-off car. Their alternator is worn, the battery light has flickered, or the lights dim at idle. A replacement is due anyway, so it makes sense to choose an Acura RL high output alternator with more capacity than the car needs today. A modest amplifier later on, a dash cam, or brighter lighting will not push the charging system to its limit. It is the same repair, with more room to grow.
The RL list includes 170, 240 and 320 amp units.
Fitment is straightforward. The 2005-2008 RL with the 3.5L and the 2009-2012 RL with the 3.7L each use their own Mechman series, and the vehicle finder at the top of the page shows which applies. Match your year and engine, then pick output. Each Acura RL high output alternator listed here is one of the Mechman high output alternators we sell as an authorized dealer.
On an older car, check the connector side too. Our alternator harnesses and regulators cover worn plugs, and a fresh unit from our battery collection completes the repair. Steady charging voltage also helps the RL's electronics, from navigation to climate control, behave as they should. If you plan an amplifier, add a Big 3 from our amp wiring kits. TL owners have a separate page built around trunk audio, and the MDX page covers Acura's SUV. Browse everything in the Honda and Acura collection.
Shop Pay InstallmentsPay over time, powered by Affirm
Lease-to-own with SnapNo credit needed¹
Pay later with SezzleFlexible payment options
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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