Alternator 1JZ/2JZ Aeroflow 170 AMP High Output Direct Fit Black
The Toyota 1J/2J 170 Amp High Output Alternator from Aeroflow Performance is a direct-fit upgrade designed to deliver reliable high-amperage charging performance for demanding automotive applications. With a robust 170 amp output, this alternator ensures your electrical system has the power it needs to reliably support aftermarket accessories, high-draw components, and motorsport-level requirements.
Built to strict quality standards and designed for simple installation using existing factory mounting points, the AF4276-1500 provides improved charging capacity over standard alternators while maintaining durable performance and long-term reliability. Whether you’re powering upgraded fuel systems, additional cooling fans, audio systems, or performance electronics, this unit gives you the extra electrical headroom you need.
Features:
Larger 3” diameter pulley for higher revving engines (may require a larger belt)
Stealth black finish.
Compatibility:
Toyota 1JZ
Toyota 2JZ
Notes:
In order for an alternator to charge properly, it must be grounded to the engine block. If an alternator has paint or clear coat on the mounting surfaces, it may not be grounded and will not charge. Many mounting brackets are also powder coated, clear coated, painted, or plated. The alternator will not ground properly without a ground wire from the alternator housing to the engine block. (This wire should match charge wire size).
A fully charged battery is at least 12.6V, not 12.0V. A weak/defective battery will cause premature failure. Never disconnect the battery with engine running! This causes voltage spikes that will damage the alternator.
