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Powermaster HPR Large Frame Series Alternators

4.38 out of 5 stars 8 Customer Reviews

Today's modern hot rods require more current than ever, especially at idle and low engine speeds. Powermaster engineered a new alternator to update the late model h
Today's modern hot rods require more current than ever, especially at idle and low engine speeds. Powermaster engineered a new alternator to update the late model hairpin technology used from the factory with the new HPR Large Frame Series alternator! Available for a number of late model V8 engine platforms; these hairpin replacement alternators provide more than enough amps to power the accessories of a modern motor.
Features include:
* Simple and effective one-wire or OE style connections available
* 195 amps at idle, 215 amps while cruising, and 250 amps at top end
* Voltage compatibility: 12 V and optional 1
Today's modern hot rods require more current than ever, especially at idle and low engine speeds. Powermaster engineered a new alternator to update the late model hairpin technology used from the factory with the new HPR Large Frame Series alternator! Available for a number of late model V8 engine platforms; these hairpin replacement alternators provide more than enough amps to power the accessories of a modern motor.
Features include:
* Simple and effective one-wire or OE style connections available
* 195 amps at idle, 215 amps while cruising, and 250 amps at top end
* Voltage compatibility: 12 V and optional 14 V and 16 V
* Efficient internal components produce more output, while consuming less engine power
* Direct bolt-in to OEM and most aftermarket brackets
* Supplied with a factory spec decoupler, solid, clutch or underdrive pulley
* Stock diameter pulley accepts the factory belt
* Available in cast, black and polished finish
* Proof of performance with included dyno tag

Note: One wire alternators will bypass the factory ECU.

Results 1 - 5 of 5

Alternator, High-Amp, 250 amp, 12 V, Serpentine, Natural Finish, Denso Case, Internal Regulator, Cadillac, Chevy, GMC, Each

Part Number: PWM-48550

4.29 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Alternator, Internal Regulator, 245 Amp, 6-Groove, Natural, Serpentine, Chevrolet, 6.2L, Each

Part Number: PWM-417943

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Alternator, Internal Regulator, 245 Amp, 6-Groove, Natural, Serpentine, One-Wire, Chevrolet, 6.2L, Each

Part Number: PWM-417943-1

Not Yet Reviewed

Estimated Ship Date: Today

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Alternator, HPR Large Frame, 250 Amp, Polished, Internal Regulator, Serpentine Pulley, Chevy, Cadillac, GMC, Each

Part Number: PWM-64007

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 15, 2026 if ordered today

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Estimated Ship Date: Apr 15, 2026 if ordered today

Alternator, 250 Amp, With Decoupler Pulley, Serpentine, 2-Pin, OE RVC, Chevy, Each

Part Number: PWM-61794

Not Yet Reviewed

Estimated Ship Date: Apr 15, 2026 if ordered today

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Estimated Ship Date: Apr 15, 2026 if ordered today

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