Pro Underdrive Performance Pulley Kit
The LCE Performance Pro Underdrive Kit is engineered to increase engine efficiency by reducing the parasitic power loss caused by driving your accessories. By slowing down the water pump and alternator, this kit frees up "hidden" horsepower—perfect for high-revving 20R and 22R series engines.
Performance Features
- Horsepower Recovery: Reduces the drag on your crankshaft, allowing more power to reach the wheels.
- Cavitation Prevention: The 6" oversized water pump pulley slows the impeller speed, preventing coolant cavitation at high RPMs to keep temperatures stable.
- Precision Balancing: Each pulley is CNC-machined to exacting tolerances, ensuring a vibration-free operation that protects your engine bearings.
- Complete Accessory Sync: Designed to work as a matched set, ensuring your alternator still provides adequate charging even at a reduced drive ratio.
What's in the Box
- (1) 6" Underdrive Water Pump Pulley: Oversized to reduce impeller speed.
- (1) Underdrive Crank Pulley: Smaller diameter to reduce accessory drag.
- (1) Underdrive Alternator Pulley: Matched for proper charging output.
- Note: Belts are sold separately as lengths may vary based on your specific accessory configuration (AC, Power Steering, etc.).
Technical Specifications
- Engine Compatibility: Toyota 20R, 22R, 22RE, and 22RET
- Material: High-Strength Billet Aluminum or Steel (Finish varies)
- Water Pump Pulley Size: 6-Inch Diameter
- Installation: Bolt-on replacement for factory pulleys
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- 1975-1980 20R 2.2L Engines
- 1981-1995 22R 2.4L Engines
- 1983-1995 22RE 2.4L Engines
- 1985-1988 22RET 2.4L Engines