Subaru Impreza WRX STI 270 Amp Alternator (2004-10 2.5L H4 Turbo)

$ 629.95

Need some Juice? We got your juice, like 270 amps worth!! How about 200 amps at idle? Yes run all your electricals and have left over amps for your Sub-woofer!!

This is a DC Power XP, the highest quality Alternators in the business.  Perfect for racing cars with STi H4 power, electric power steering, water pumps, and crazy high amp cooling fans running at the same time!!  Or just need some bump in your Subie sound system.

Quick Overview

Mounting Type Direct fit to OEM Mounting
Output Voltage 14.8
Idle Amperage 200
Hot Idle Amperage @ 200ºF 180
Max Amperage 270
Hot Max Amperage @ 200ºF 250
Pulley 5 Groove Hard Anodized 6061 Billet Aluminum
Doesn't affect vehicles PCM, Check Engine Light or Charge Light Yes - w/ Supplied Adapter Harness
SKU 11024-270-XP
Stator Configuration 6 Phase Hairpin
Average A/C Ripple Current 3 Amps
Positive Output Stud Size 8MM x 1.25 Copper
Temperature Compensation Yes with 3-Step Thermal Protection
Rectifier 12 50 amp press fit diodes
Rectifier Heatsink Aluminum
Warranty Duration 2 Years


It takes up to 3 weeks to custom build each one of these so be sure and check with us.  We usually have units in stock, but they move pretty quickly.

Options for your Alternator include:


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