High Output Alternator for Acura TLX (2015-2020) 2.4L

Direct-Fit Replacement Alternator for 2015-2020 Acura TLX (UB1)

What it Does: The high-output replacement alternator restores stable 12V charging system performance and maintains proper battery voltage under heavy electrical loads for the 2015-2020 Acura TLX 2.4L.

The Stock Acura TLX Charging System Weakness

In the UB1 chassis, the transverse-mounted K24W7 engine bay subjects the original equipment charging unit to severe thermal saturation and continuous electrical strain. Over time, internal diode rectifiers degrade, brushes wear down, and factory stator windings suffer insulation breakdown due to prolonged engine compartment heat soak. This leads to erratic voltage fluctuations, battery discharge warning lights, flickering cabin electronics, and premature failure of the factory unit under standard accessory draw.

The Engineering Solution

This replacement charging unit utilizes a durable die-cast aluminum housing paired with a high-efficiency internal cooling fan (IF) and an integrated internal voltage regulator (IR) for consistent voltage output across the entire RPM range. Built to match OEM 31100-5X6-J01 tolerances, it features heavy-gauge copper windings, an exact OE-spec 7-groove serpentine pulley, clockwise (CW) rotation, and a factory-matched single-pin harness connection for clean, drop-in integration without wiring modifications.

What's Included

• 1 × 12V 135A Alternator

Technical Specifications

Compatibility

• 2015 Acura TLX Base 2.4L L4 (K24W7)
• 2016 Acura TLX Base 2.4L L4 (K24W7)
• 2017 Acura TLX Base 2.4L L4 (K24W7)
• 2018 Acura TLX Base 2.4L L4 (K24W7)
• 2019 Acura TLX Base 2.4L L4 (K24W7)
• 2020 Acura TLX Base 2.4L L4 (K24W7)

Frequently Asked Questions & Fitment Warnings

Does this fit the UB1 TLX?

Yes, this is a direct fit for the 2015-2020 Acura TLX equipped with the K24W7 2.4L inline-4 engine. It does not fit 3.5L V6 (J35Y6) models or SH-AWD chassis variants.

Is mounting hardware included with this unit?

No, mounting hardware is not included; reuse your factory OE mounting bolts during installation.

The Acura Engineering Standard

Engineered to sustain the precise electrical thresholds demanded by modern JDM powerplants, this unit ensures your K-series engine maintains flawless electrical integrity and transient throttle stability without throwing charging system DTC codes.