• 250 Amp Black Billet High Output Alternator for GM 2 pin WITH RVC Bypass | B14019250B | by: Mechman @ the lowest price of $549.00
  • 250 Amp Black Billet High Output Alternator for GM 2 pin WITH RVC Bypass | B14019250B | by: Mechman @ the lowest price of $549.00
  • 250 Amp Black Billet High Output Alternator for GM 2 pin WITH RVC Bypass | B14019250B | by: Mechman @ the lowest price of $549.00
  • 250 Amp Black Billet High Output Alternator for GM 2 pin WITH RVC Bypass | B14019250B | by: Mechman @ the lowest price of $549.00
  • 250 Amp Black Billet High Output Alternator for GM 2 pin WITH RVC Bypass | B14019250B | by: Mechman @ the lowest price of $549.00
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Mechman

250 Amp RVC Bypass Alternator - 2007-2026 6.6L Duramax LMM/LML/L5P & 2014-2019 GM Gas - Black Billet

250 Amp RVC Bypass Alternator - 2007-2026 6.6L Duramax LMM/LML/L5P & 2014-2019 GM Gas - Black Billet
$549.00 USD
$549.00 USD
Sale Sold out
Shipping calculated at checkout.

SKU:B14019250B
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250 Amp RVC Bypass Alternator - 2007-2026 6.6L Duramax LMM/LML/L5P & 2014-2019 GM Gas - Black Billet
$549.00 USD
$549.00 USD
Shipping calculated at checkout.

250 Amp High Output Alternator for 2007-2026 6.6L Duramax LMM/LML/L5P

Fits the 6.6L Duramax across the LMM, LML and L5P engines in Chevrolet and GMC HD trucks, and the 2014-2019 GM gas trucks and SUVs that share the same case and two-pin RVC plug. This is a direct bolt-in upgrade over the factory unit — same mount, same pulley position, no bracket modification.

Diesel engines spend most of their working life at low RPM, and that is exactly where a stock alternator runs out of headroom. This unit holds 200+ amps at engine idle and delivers a full 250+ amps at cruising speed, hot rated — enough for a lift pump, auxiliary lighting, a winch, a plow, a welder or a competition-grade stereo without watching your voltage sag at every stoplight.

Engine codes covered: LMM, LML, L5P

Vehicles: Silverado Sierra 2500HD 3500HD, Tahoe, Suburban, Yukon, Escalade

Manufacturer specifications and full fitment

The Billet Elite series 250-amp alternator offers great amperage output and durability at a great price. 6 phase technology, combined with massive twin rectifier assemblies and 12 huge diodes make these alternators totally durable for daily use. These impressive alternators produce 180+ at engine idle RPM and 250+ amps at cruising speeds HOT RATED and the unit is equipped with a stock size pulley, so it installs with a factory length belt and is suitable for high RPM use.

This unit includes our single wire turn RVC bypass regulator and P103 module so it can be used in engine swaps where clearance behind the alternator is aided by a top/side mounted output stud. Great for getting the most looks and performance from your alternator!
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