Grezuton 150A Alternator for Chevy GMC Trucks & SUVs (2014–2019) — Direct-Fit, Die-Cast Aluminum

Grezuton 150 AMP replacement alternator restores reliable 12V power and battery charging for compatible 2014–2019 Chevrolet and GMC full-size trucks and SUVs.

This direct-fit alternator is engineered to replace worn or failed units on Silverado, Sierra, Suburban, Tahoe, Yukon, and Express/Savana models listed for 4.3L, 5.3L, 6.0L, 6.2L and 6.6L engines. Built with a die-cast aluminum housing, pure copper windings and an external insulating coat, the unit delivers stable electrical output while resisting short circuits and corrosion. It comes preconfigured with a clockwise rotation, integrated regulator (IR), internal fan (IF) and S6 pulley grooves for straightforward installation where the factory part numbers match.

Which vehicles and engines does this Grezuton alternator fit?

This alternator is compatible with a broad range of Chevy and GMC model years and engine sizes. Confirm exact year, make and engine before ordering to ensure fitment.

• Chevrolet: Silverado 1500/2500/3500 (2014–2019), Suburban, Tahoe (2015–2019), Express (2017–2019), Yukon/Yukon XL (2015–2019)
• GMC: Sierra 1500/2500/3500 (2014–2019), Savana/Express (2018–2019)
• Engine coverage: 4.3L V6, 5.3L V8, 6.0L V8, 6.2L V8, 6.6L V8 as listed
• Confirm compatibility using factory or aftermarket reference part numbers included below

What electrical and mechanical specs should I expect?

The unit supplies 150 amps at 12 volts and includes the typical features for modern GM engines. Its mechanical and electrical design matches OE expectations for reliable charging and accessory power.

• Voltage: 12V; Amperage: 150A
• Rotation: Clockwise (CW); Pulley type: S6 groove
• Regulator: Internal (IR); Fan: Internal fan (IF)
• Construction: Die-cast aluminum case, pure copper winding, external insulating coating

How does this alternator compare with original factory units?

This replacement is manufactured to meet common OEM quality standards and fits where specific GM part numbers apply. It is built for equivalent electrical output and mounting compatibility while using robust materials to resist wear and shorting.

• Direct-fit replacement for many OEM part numbers (examples listed in product details)
• Pure copper windings and insulated coating for durable, stable output
• Die-cast housing improves heat dissipation and structural strength
• ISO 9001 and IATF 16949 certified production ensures quality management

What warranty and support come with the alternator?

Grezuton backs the alternator with a one-year free replacement parts service and customer support to verify fitment. Contact the seller with vehicle details if you need help choosing the correct unit.

• One-year free replacement parts service
• Pre-sale fitment confirmation recommended (year/make/model/engine)
• Customer support available for installation or compatibility questions

Replacement part references included with the product listing: 14007, 104211-8340, 1042118350, 104211-8350, 1042118352, 104211-8352, 1042119110, 104211-9110, 1042119112, 104211-9112, 1042119720, 104211-9720, 22747896, 23487088, 84143542, 84143543, TN1042119110 and TN1042119720. Use these numbers to verify compatibility against your vehicle's original alternator label.

Who is this for: This Grezuton 150A alternator is aimed at owners, fleet managers and independent mechanics who need a dependable, direct-fit charging unit for mid-2010s Chevrolet and GMC full-size trucks and SUVs. It suits anyone replacing a failing alternator or upgrading to a high-output OE-equivalent part to restore battery charging, accessory function and long-term reliability.