MechMan S Series Alternators

4.52 out of 5 stars 31 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

Showing In Stock Items. Show All 21 Items.

Results 1 - 18 of 18

MechMan S Series Alternators 7127240B

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: Today

...Loading

Estimated Ship Date: Today

MechMan S Series Alternators 7127320P

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

Part Number: MEH-7127320P

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

MechMan S Series Alternators 7127240P

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: Today

...Loading

Estimated Ship Date: Today

MechMan S Series Alternators 7127170B

MechMan S Series Alternators 7127170B

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: Today

...Loading

Estimated Ship Date: Today

MechMan S Series Alternators 7127320B

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

Part Number: MEH-7127320B

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

MechMan S Series Alternators 7127240C

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: Today

...Loading

Estimated Ship Date: Today

MechMan S Series Alternators B7771240B

S Series Billet 240A racing alt - 6/12 Ford 6S - Black

Part Number: MEH-B7771240B

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

MechMan S Series Alternators B7771170B

S Series Billet 170A racing alt - 6/12 Ford 6S - Black

Part Number: MEH-B7771170B

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

MechMan S Series Alternators 7127170C

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: Today

...Loading

Estimated Ship Date: Today

MechMan S Series Alternators 7127320

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

Part Number: MEH-7127320

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

MechMan S Series Alternators 7127170P

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

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

MechMan S Series Alternators B7058170M

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: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

MechMan S Series Alternators B7771170M

S Series Billet 170A racing alt - 6/12 Ford 6S - Machined

Part Number: MEH-B7771170M

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

MechMan S Series Alternators B7771240C

S Series Billet 240A racing alt - 6/12 Ford 6S - Chrome

Part Number: MEH-B7771240C

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

MechMan S Series Alternators B7771240M

S Series Billet 240A racing alt - 6/12 Ford 6S - Machined

Part Number: MEH-B7771240M

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

MechMan S Series Alternators B7058170C

S Series Billet 170a racing alt - Early Ford - Chrome

Part Number: MEH-B7058170C

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

MechMan S Series Alternators B7058170B

S Series Billet 170a racing alt - Early Ford - Black

Part Number: MEH-B7058170B

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

MechMan S Series Alternators B7058170P

S Series Billet 170a racing alt - Early Ford - 1 wire - Polished

Part Number: MEH-B7058170P

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

Page 1 of 1