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MechMan G Series Alternators

5.0 out of 5 stars 3 Customer Reviews

Based on MechMan's late model large case GM housings, the tried-and-true G Series of alternators are best sellers. Reasonably priced and very reliable, these units feature solid copper custom rectifiers for great durability. Oversize press-fit diodes and premium bearings ensure long life, even in hot or abusive conditions. Models are available with or without an adapter bracket, which allows easy installation of a large case alternator on a 2.2L GM SOH engine. (If you order the alternator/bracket combo, you will need a slightly longer drive belt for proper belt tension.)

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MechMan G Series Alternators 81657240

MechMan G Series Alternators 81657240

MechMan G Series Alternators 81657240

Alternators and Generators, G Series Alternators, 12 V, 240 amps, Internal Regulator, Serpentine Pulley, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: MEH-81657240

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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MechMan G Series Alternators 8497240

Made in the USA

MechMan G Series Alternators 8497240

MechMan G Series Alternators 8497240

240 Amp Alternator for GM 4.2 6 cylinder with 4 pin plug

Part Number: MEH-8497240

Not Yet Reviewed

Estimated Ship Date: Oct 6, 2025 if ordered today

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Estimated Ship Date: Oct 6, 2025 if ordered today

MechMan G Series Alternators for 1996-2002 CAVALIER - 8199240

Made in the USA

MechMan G Series Alternators for 1996-2002 CAVALIER - 8199240

MechMan G Series Alternators for 1996-2002 CAVALIER - 8199240

Alternators and Generators, G Series Alternators, 12 V, 240 amps, Internal Regulator, Black/Natural, Serpentine Pulley, Chevrolet, 2.2L, Each

Part Number: MEH-8199240

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

MechMan G Series Alternators for 2007-2009 ENVOY, TRAILBLAZER, 2007 RAINIER - 8498240

Made in the USA

MechMan G Series Alternators for 2007-2009 ENVOY, TRAILBLAZER, 2007 RAINIER - 8498240

MechMan G Series Alternators for 2007-2009 ENVOY, TRAILBLAZER, 2007 RAINIER - 8498240

Alternators and Generators, G Series Alternators, 12 V, 240 amps, Black/Natural, Serpentine Pulley, Buick, Chevrolet, GMC, 4.2L, Each

Part Number: MEH-8498240

Not Yet Reviewed

Estimated Ship Date: Oct 6, 2025 if ordered today

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Estimated Ship Date: Oct 6, 2025 if ordered today

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