Product Description
Mechman Elite Series Billet 250 Amp Alternator – Black Anodized
Fits 1998-02 Camaro / Firebird and 1996-2004 Silverado Sierra Tahoe Yukon Escalade
The Mechman Elite Series 250 Amp Billet Alternator is built for serious performance, durability, and flexibility — making it a top choice for both stock 1996–2004 GM Truck/SUV applications and LS engine swaps utilizing "Truck" accessory drives. Featuring 6-phase technology, massive twin rectifier assemblies, and 12 oversized diodes, this large-case billet alternator is designed for reliable daily use and high-demand builds.
Hot-rated for real-world conditions, this unit produces 180+ amps at idle and 250+ amps at cruising speed, making it a strong match for vehicles equipped with upgraded fuel systems, electric fans, power adders, or 2,000–3,000 watt audio systems.
Thanks to its simple one-wire design, this alternator is extremely versatile — requiring only a 12V switched source to activate. It’s ideal not only for OEM replacement but also as a secondary alternator or for custom applications where space and reliability matter.
The CNC-machined billet housing is the same proven platform used in Mechman’s high-output 370A and 400A units. Fitted with a larger 2.2” 6-rib pulley, it’s built to handle high RPM demands while maintaining excellent output at idle — perfect for racing, street, or show builds.
Proudly Made In the USA, Mechman alternators are known for their quality, performance, and reliability.
Key Features:
- 250 amp at cruising speed / 180+ amps at idle (HOT-rated)
- 6 phase design for higher efficiency
- Black anodized billet aluminum construction
- 12-diode setup with dual rectifier plates
- High-RPM capable with larger 2.2" 6-rib pulley
- Simple 1-wire ignition activation. (Pigtail harness included)
- Excellent cooling for long-term reliability
- Direct bolt-on for many LS-based vehicles
- Made in the USA
Fitment Guide:
Buick
- Rainier 5.3L (2004–2006)
Cadillac
- Escalade 5.7L / 6.0L / 6.2L (1999–2004)
Chevrolet
- Astro Van 4.3L (1996–2005)
- Avalanche (All Engines) (2002–2004)
- Camaro 5.0L / 5.7L (1998–2002)
- Express Van (1996–2016, 4-pin plug)
- Full Size Trucks (All Gas Engines, 1996–2004; 6.6L Duramax, 2001–2007)
- S-10 / Blazer 4.3L (1994–2004)
- SSR 5.3L / 6.0L (2003–2006)
- Suburban (1996–2004, w/ 4-pin plug)
- Tahoe / Full Size Blazer (All Gas Engines, 1996–2004)
- Trailblazer 5.3L (2003–2006)
GMC
- Envoy 5.3L (2003–2006)
- Safari 4.3L (1994–2004)
- Savana Van (1996–2016, w/ 4-pin oval plug)
- Suburban / Yukon (1996–2004, w/ oval plug)
Sierra / Full Size Trucks:
- 4.3L (1996–2004)
- 4.8L / 5.3L / 6.0L / 8.1L (1999–2005)
- 5.0L / 5.7L / 7.4L (1996–2000)
- 6.6L Diesel (2001–2006)
Hummer
- H2 6.0L (2003–2007)
Pontiac
- Firebird 5.0L / 5.7L (1998–2002)
A perfect solution for high-demand performance builds and engine swaps where reliability, compact fitment, and steady output are key.
