7" Billet Water Pump Underdrive Pulley
Engineered for high-RPM racing, this 7" Black Anodized Underdrive Pulley is designed to significantly reduce water pump speed. By slowing the pump, it prevents coolant cavitation and ensures maximum cooling efficiency during sustained high-speed operation.
Premium Construction
- CNC Machined: Precision-cut from 6061-T6 billet aluminum bar stock.
- Lightweight Design: Features custom performance lightening holes to reduce rotational mass.
- Durable Finish: Hard-anodized in black for superior corrosion and wear resistance.
Technical Specifications & Requirements
- High-RPM Only: Specifically designed for race applications maintaining a constant 5,000 RPM or higher.
- Compatibility: This pulley is not compatible with power steering systems.
- Mandatory Hardware: This pulley cannot be used with a stock harmonic balancer. It must be paired with our 4" Crankshaft Power Pulley.
Looking for a Complete Setup?
For a fully matched system, see our complete race underdrive kits:
- Part number: 1016123
- Part number: 1016124
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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
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The 7" black anodized Underdrive Pulleys is designed to reduce water pump RPM in high RPM race applications. These pulleys are CNC machined from billet 6061 T-6 aluminum bar stock and cut with performance lightening holes to reduce weight.
NOTE:
- 7" underdrive pulley is designed for high RPM (constant 5,000rpm and up) applications
- 7" Underdrive Pulley will not work with power steering.
- Can not be used with the stock harmonic balancer our 4" power pulley will be required.
Installation:
Follow service manual for removal and installation of belts and torque specifications.
- Remove fan, fan clutch and belts.
- Remove stock pulley and replace with LC Water Pump Pulley.
- Install fan and fan clutch assembly.
- Replace belts and tighten.