Toyota 1HZ (4.2 Diesel)
Max-Amp alternators are the premier alternator on the market. They are designed for heavy-duty & commercial use and will provide maximum power under the most demanding conditions. Whether your demands are for any of the conditions noted below, Max-Amp alternators will fill you needs.
- High amperage (continuous or intermittent demand)
- Extremely hot conditions (Death Valley hot)
- High amperage whether idling or at road speed
- High humidity, wet conditions, chemicals, etc.
This Max-Amp heavy-duty alternator vastly outperforms the stock Toyota alternator, both at idle & at road speed. Note on the chart below to see the performance differences.
OEM Alternator Max-Amp Alternator
Amps @ Idle Speed 60 amps 200 amps
Amps @ Road speed 80 amps 270 amps
The XP series of Max-Amp alternators are assembled using DENSO components and produce the highest idle output. They feature a larger housing while still retaining OEM fitment without any modification required. They run cooler and are virtually indestructible. This alternator is designed to be an exact replacement to the OEM alternator for the 1HZ engine.
A precision CNC 6061T6 aluminum pulley with a .002 hard anodized coating is installed on each alternator for maximum output and durability. This XP Series alternator comes with an unprecedented full two-year warranty.
This alternator also fits the 1HD-FTE (4.2L turbo diesel) and 1HD-T (4.2L turbo diesel) engines.
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