Toyota 2JZ 170-High Output Alternator

Toyota 2JZ 170-High Output Alternator Upgrade your Toyota 2JZ 170 with a high-output alternator from JS Alternators. Built with hairpin...

JS Alternators Art: 2JZ-170amp-9801-312-s6

$319.00 $349.00

$319.00

Increments of 1 Minimum of 1 Maximum of

Toyota 2JZ 170-High Output Alternator

Upgrade your Toyota 2JZ 170 with a high-output alternator from JS Alternators. Built with hairpin (6-phase) technology for higher idle output and improved efficiency over conventional alternators.

Key Features

Hairpin (6-Phase) Design — More output at idle, more efficient than conventional alternators
Premium Bearings — Built to withstand high engine RPM
Dual Plate Rectifier — 12 heavy-duty diodes for improved cooling
High-Output Performance — Built for car audio, marine, racing, and high-demand electrical systems

Fitment

Toyota 2JZ 170

Pro Tip: Always upgrade your ground and charge wires when installing a high-output alternator to get the full benefit of the increased amperage.

Read our full guide: Toyota Supra Performance Parts: The Complete Build Guide from MK3 to MK5

JS ALTERNATORS OUTPUT CHART

Model	Idle Output	Peak Output
250 Amp	170–190 amps	250–270 amps
320 Amp	190–200 amps	320–340 amps
370 Amp	200–220+ amps	370–390 amps
400 Amp	200–220+ amps	400–420 amps

Idle output is rated at 800+ rpm for larger amperages; the 250 amp unit performs at lower idle speeds. Output is load dependent. Available amperages vary by application, see the options above.

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