27415-0L030 Pulley Alternator w/Clutch Toyota Lexus
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27415-0L030 Alternator Pulley - Overrunning Clutch Style
✔️ 7-Rib Freewheel Pulley for Toyota & Lexus Diesel Platforms
This overrunning alternator pulley (OEM part number 27415-0L030, superseded by 27415-30020) is designed for Toyota diesel engines using the 1KD, 2KD, or 1GD series. It's a freewheel-style pulley that reduces belt tension during engine deceleration, improving alternator life and drive comfort. Works with 7-rib serpentine belts and features a 15mm inner bore.
✅ Overrunning (clutch) pulley for serpentine belt systems
✅ 7-rib pulley with 15mm inner bore
✅ Helps reduce belt slap and alternator load
✅ OEM made in Japan; aftermarket versions may be from China
✅ Part numbers: 27415‑0L030 / 27415‑30020 (updated)
✅ Fits diesel alternators using 1KD, 2KD, or 1GD engines
Vehicle Compatibility Summary
| Model | Engine Series | Years | Notes |
|---|---|---|---|
| Toyota Hilux | 1KD / 2KD / 1GD | 2004-2015 | Gen 7-8 (KUN25, KUN26, GUN125) |
| Toyota Fortuner | 1KD / 2KD / 1GD | ~2005-2016 | Diesel variants (KUN50) |
| Toyota Innova | 1KD / 2KD | 2004-2016 | Also known as Kijang Innova |
| Lexus ES350 / RX350 | Gas engine (USDM) | 2013 (select) | Limited compatibility - confirm VIN |
| Land Cruiser Prado | 1KD / 2KD / 1GD | Various | Often uses same alternator style |
💡 What does an overrunning alternator pulley do?
It allows the alternator to "freewheel" during engine deceleration, protecting the belt system and reducing vibration.
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Minimizes belt noise and improves idle smoothness
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Extends belt and alternator lifespan
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Commonly used in modern diesel engines with high torque variation
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Easy drop-in replacement for OEM Toyota diesel alternators
Running a Hilux, Fortuner, or Innova diesel? This pulley keeps your belt system running quiet and tight - swap it in and enjoy smoother operation!