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Powermaster HPR Large Frame Series Alternators
12 Customer Reviews
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
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.
Showing In Stock Items. Show All 56 Items.
Alternator, High-Amp, 250 amp, 12 V, Serpentine, Natural Finish, Denso Case, Internal Regulator, Cadillac, Chevy, GMC, Each
Part Number: PWM-48550
Estimated Ship Date: Today
Estimated Ship Date: Today
Alternator, High-Amp, 1-Wire, 250 amp, Serpentine, Natural Finish, Denso Case, Internal Regulator, Cadillac, Chevy, GMC, Each
Part Number: PWM-48550-1
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Alternator, Street Alternators, 12V, 250 amps, Satin Black, Under Drive Serpentine Pulley, Each
Part Number: PWM-585503-1
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Alternator, HPR, 250 amp, 12 V, 1-Wire, Serpentine, Black Finish, Denso Case, Internal Regulator with Dash Light, Cadillac, Chevy, GMC, Each
Part Number: PWM-58550-4
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Alternator, Street Alternators, 12V, 250 amps, Satin Black, Serpentine Pulley, Each
Part Number: PWM-58550-1
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Alt Denso Nat'l 250A CH Solid Pulley Transverse Mt
Part Number: PWM-41574
Not Yet Reviewed
Estimated Ship Date: Nov 30, 2026 if ordered today
Estimated Ship Date: Nov 30, 2026 if ordered today
Alternator, High-Amp, 1-Wire, 250 amp, Under Drive Serpentine Pulley, Natural Finish, Denso Case, Internal Regulator, Cadillac, Chevy, GMC, Each
Part Number: PWM-485503-1
Not Yet Reviewed
Estimated Ship Date: Nov 30, 2026 if ordered today
Estimated Ship Date: Nov 30, 2026 if ordered today
Alternator, HPR Diesel Alternator, 12V, 250 amps, Textured Black, Serpentine Pulley, Each
Part Number: PWM-54007W
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: 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: Nov 30, 2026 if ordered today
Estimated Ship Date: Nov 30, 2026 if ordered today
Alt Ford Denso Nat'l 250A F150 6 grv Decoupler Pulley Side Batt Post/Reg
Part Number: PWM-44005
Not Yet Reviewed
Estimated Ship Date: Nov 30, 2026 if ordered today
Estimated Ship Date: Nov 30, 2026 if ordered today
Alternator, HPR Diesel Alternator, 12V, 250 amps, Textured Black, Serpentine Pulley, Each
Part Number: PWM-51627W
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Alternator, Internal Regulator, 250 Amp, 6-Groove, Black, Serpentine, One-Wire, Chevrolet, 6.2L, Each
Part Number: PWM-517943-1
Not Yet Reviewed
Estimated Ship Date: Nov 30, 2026 if ordered today
Estimated Ship Date: Nov 30, 2026 if ordered today
Alternator, Street Alternators, 12V, 250 amps, Satin Black, Serpentine Pulley, Each
Part Number: PWM-58550
Not Yet Reviewed
Estimated Ship Date: Nov 30, 2026 if ordered today
Estimated Ship Date: Nov 30, 2026 if ordered today
