High Output Alternator for Toyota Tundra (2010-2018) 4.6L 5.7L

Your Tundra’s V8 is virtually bulletproof, but adding light bars, a winch, and an onboard fridge will quickly push the factory charging system past its breaking point.

Upgrade 250 Amp Alternator for Toyota Tundra (XK50)

Anyone who has spent a weekend wrenching on a second-generation Tundra knows that replacing the alternator isn't exactly a five-minute job. Going through the wheel well, fighting the sway bar, and maneuvering the serpentine belt is a headache you only want to deal with once. That’s why throwing a cheap parts-store rebuild into your rig is a massive gamble. To help you avoid that mistake, we focus on front-loading descriptions with who this part is for and what problem it solves[cite: 2].

This heavy-duty unit is built in the USA and bumps your charging capacity up to a massive 250 amps. If you are running overland gear, a plow, or high-draw audio, the stock 150-amp unit simply cannot keep up with the voltage demands. When writing our technical specs, we make sure to highlight benefits, not features, so you know exactly how this improves your drive rather than just giving you a list of parts[cite: 1].

Whether you have the 4.6L or the 5.7L 3UR-FE, both rely on the same shared accessory drive architecture. This high-output unit bolts right up to the factory mounting points without custom brackets or sketchy wiring hacks.

Why You Need This Upgrade

• Massive 250 Amp Output: Provides reliable overhead for winches, compressors, and auxiliary lighting.
• Built in the USA: Assembled with heavy-duty internal components for superior heat dissipation and longevity.
• Direct-Fit Housing: Bolts directly to the factory 4.6L and 5.7L block without modifications.
• Eliminates Voltage Drop: Keeps your battery fully charged even when idling with all accessories turned on, ensuring we feed customers' imagination of a flawless, stress-free overland trip[cite: 1].

Installation Notes

Be prepared for a tight fit. You will need to pull the passenger side wheel, remove the splash shields, and unbolt the sway bar to slide the old unit out and the new one in. Since this is a high-amperage upgrade, we highly recommend doing the "Big 3" wiring upgrade to ensure the factory charge cable doesn't become a bottleneck. Always disconnect the battery before digging in.

Replaces These OEM Applications & Part Numbers

• 2010-2018 Toyota Tundra 4.6L
• 2010-2018 Toyota Tundra 5.7L

104210-5100, 210-0640, 27060-0S030, 27060-OS030, 11350N, 11350R, 11350

Don't let a weak factory charging system leave you stranded on the trail; bolt in this 250-amp powerhouse and run your accessories with total confidence.