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MechMan S Series Alternators

4.48 out of 5 stars 29 Customer Reviews

MechMan S Series 6-phase alternators offer incredible output in a compact and durable package. The 240 amp models offer the best balance between peak output, and ou
MechMan S Series 6-phase alternators offer incredible output in a compact and durable package. The 240 amp models offer the best balance between peak output, and output at engine idle RPM; while the 320 amp models are all about max power and not designed to charge at low idle speeds. Both S Series alternators feature 12 diodes, twin rectifier plates, and outstanding airflow ensure long service life, even in severe conditions. These units come equipped with a smaller 1.75 in. diameter alternator pulley, and will require a slightly shorter drive belt to be installed for proper belt tension. Order the model recommended
MechMan S Series 6-phase alternators offer incredible output in a compact and durable package. The 240 amp models offer the best balance between peak output, and output at engine idle RPM; while the 320 amp models are all about max power and not designed to charge at low idle speeds. Both S Series alternators feature 12 diodes, twin rectifier plates, and outstanding airflow ensure long service life, even in severe conditions. These units come equipped with a smaller 1.75 in. diameter alternator pulley, and will require a slightly shorter drive belt to be installed for proper belt tension. Order the model recommended for your auto application.

Results 1 - 25 of 128

Alternator, S Series, 12 V, 240 amps, Black, Satin Finish, One Wire, Serpentine Pulley, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: MEH-7127240B

3.5 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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Alternators and Generators, S Series Alternators, 12 V, 170 amps, Black, Satin Finish, Serpentine Pulley/V-Pulley, Buick, Cadillac, Chevy, GMC, Each

Part Number: MEH-7127170B

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Alternator, S Series Alternator, 12 V, 240 amps, Polished, One Wire, Serpentine Pulley, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: MEH-7127240P

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Alternator, S Series Alternator, 12 V, 320 amps, Polished, One Wire, Serpentine Pulley, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: MEH-7127320P

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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S Series Billet 240 amp 03/04 Cobra - Black Anodized

Part Number: MEH-B8304240B

Not Yet Reviewed

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Alternators and Generators, S Series Alternators, 12 V, 240 amps, Internal Regulator, Black/Natural, Serpentine Pulley, Lexus, Toyota, 3.0L, Each

Part Number: MEH-13546240

Not Yet Reviewed

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240 Amp 6 Phase 88-95 GM Truck High Output Alternator Black Finish

Part Number: MEH-8165240B

5.0 out of 5 stars ( 1 )

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Alternator, S Series Alternator, 12 V, 320 amps, Natural, One Wire, Serpentine Pulley, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: MEH-7127320

Not Yet Reviewed

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Alternators and Generators, S Series Alternators, 12 V, 170 amps, Internal Regulator, Serpentine Pulley, Ford, Each

Part Number: MEH-11626170

Not Yet Reviewed

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Alternators and Generators, S Series Alternators, 12 V, 170 amps, Internal Regulator, Black/Natural, Serpentine Pulley, Toyota, 3.0L, Each

Part Number: MEH-13546170

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Alternator, S Series Alternator, 12 V, 240 amps, Chrome, One Wire, Serpentine Pulley, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: MEH-7127240C

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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170 amp high output racing alternator for GM LS brackets

Part Number: MEH-8237170

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Alternators and Generators, S Series Alternators, 12 V, 170 amps, Polished, Serpentine Pulley/V-Belt, Buick, Cadillac, Chevy, GMC, Oldsmobile, Each

Part Number: MEH-7127170P

Not Yet Reviewed

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240 Amp alternator for Select Toyota / Lexus 4.7L and 4.3L

Part Number: MEH-13994240

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

Alternators and Generators, S Series Alternators, 12 V, 240 amps, Black/Natural, Serpentine Pulley, Dodge, Jeep, Each

Part Number: MEH-13453240

Not Yet Reviewed

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Alternators and Generators, S Series Alternators, 12 V, 240 amps, Internal Regulator, Black/Natural, Serpentine Pulley, Chrysler, Dodge, Each

Part Number: MEH-11113240

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Oct 6, 2025 if ordered today

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Estimated Ship Date: Oct 6, 2025 if ordered today

S Series Billet 240 amp 03/04 Cobra - Machined finish

Part Number: MEH-B8304240M

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

Alternators and Generators, S Series Alternators, 12 V, 170 amps, Internal Regulator, Serpentine Pulley/V-Belt, Buick, Cadillac, Chevy, GMC, Each

Part Number: MEH-7127170

Not Yet Reviewed

Estimated Ship Date: Oct 7, 2025 if ordered today

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Estimated Ship Date: Oct 7, 2025 if ordered today

240 amp alternator for 4.0 Lexus Car

Part Number: MEH-13715240

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

S Series 320 Amp Alternator with 6.15" Bolt Pattern - POLISHED w/ March Pulley

Part Number: MEH-S0001

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Alternators and Generators, S Series Alternators, 12 V, 170 amps, Chrome, Serpentine/V-Belt Pulley, Buick, Cadillac, Chevy, GMC, Pontiac, Each

Part Number: MEH-7127170C

2.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Alternators and Generators, S Series Alternators, 12 V, 240 amps, Internal Regulator, Black/Natural, Serpentine Pulley, Chrysler, Dodge, Each

Part Number: MEH-11383240

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

Alternators and Generators, S Series Alternators, 12 V, 170 amps, Natural, Machined, V-Belt, Ford, Each

Part Number: MEH-B7058170M

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Oct 6, 2025 if ordered today

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Estimated Ship Date: Oct 6, 2025 if ordered today

240 Amp Alternator for Dodge / Chrysler / Jeep 3.7L / 4.7L engines

Part Number: MEH-11240240

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

320 amp S series alternator for early 5.9L Cummins

Part Number: MEH-13302320

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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