United States 
UK
Canada
Australia
India
10 Best Underdrive Pulleys of December 2025
List of Top Rated Underdrive Pulleys from thousands of customer reviews & feedback.
Updated On Dec 2025
2,569 Reviews Studied
1
BBK 1553 Underdrive Pulley Kit for Ford Mustang 5.0L - 3 Piece Lightweight CNC Machined Aluminum Kit Read Review
- BBK is your Number One Aftermarket Performance Brand in the USA - American Designed and Built
- Installing a Set of BBK Performance Underdrive Pulleys is one of the Easiest Ways to Gain Approximately 10-15 Horsepower
- Direct Replacement Pulley Kit Re Uses Existing Serpentine Belt and Will Not Affect Cooling or Charging of the Vehicle
- Premium Quality CNC Machined Lightweight Billet Aluminum Pulley Kit Add Great Looks and Performance
- 3 Pc Kit Includes Crank, Water Pump and Alternator Pulleys and all Hardware and Instructions for Simple Installation
2
BBK 15550 Underdrive Performance Pulley Kit - CNC Machined Aluminum 8-Rib for Ford F Series Truck, Expedition 4.6L, 5.4L... Read Review
- BBK is your Number One Aftermarket Performance Brand in the USA - American Designed and Built
- Installing a Set of BBK Performance Underdrive Pulleys is one of the Easiest Ways to Gain Approximately 8-10 Horsepower
- Direct Replacement Pulley Kit Re Uses Existing Serpentine Belt and Will Not Affect Cooling or Charging of the Vehicle
- Premium Quality CNC Machined Lightweight Billet Aluminum Pulley Kit Add Great Looks and Performance
- 3 Pc Kit Includes Crank, Water Pump and Alternator Pulleys and all Hardware and Instructions for Simple Installation
3
Steeda 701-0003 Underdrive Pulley Read Review
- Fits Mid- 01-04 GT 4.6L
- Package Dimensions: 32.004 L x 12.192 H x 32.766 W (centimeters)
- Made in China
4
SR Performance Underdrive Pulleys Kit in Polished Durable Aluminum for Mustang GT 1996-2001 Through Mid-2001 Read Review
- Free Up 10-15 Horsepower
- Complete 3 Piece Kit
- Durable, Lightweight Aluminum
- Brilliant Polished Finish
- Premium Quality Construction
5
Big Block Chevy Crankshaft Pulley, 396 427 454 V-Belt - Long Water Pump Read Review
- Chevy Big Block Crankshaf Pulley - LWP, V-belt (396-427-454)
- Made in the USA from 6061-T6 Billet Aluminum
- Designed for engines with Long Water Pump
- 2 Grooves, 5.4" Diameter, 3.0" Overall Length
- 3 Bolt Pattern
6
BBK 1603 Underdrive Pulley Kit for GM Truck 4.3/5.0/5.7L - 3 Piece CNC Machined Aluminum Read Review
- BBK is your Number One Aftermarket Performance Brand in the USA - American Designed and Built
- Installing a Set of BBK Performance Underdrive Pulleys is one of the Easiest Ways to Gain Approximately 8-10 Horsepower
- Direct Replacement Pulley Kit Re Uses Existing Serpentine Belt and Will Not Affect Cooling or Charging of the Vehicle
- Premium Quality CNC Machined Lightweight Billet Aluminum Pulley Kit Add Great Looks and Performance
- 3 Pc Kit Includes Crank, Water Pump and Alternator Pulleys and all Hardware and Instructions for Simple Installation
7
BBK 1555 Underdrive Pulley Kit for Ford Mustang 4.6/ GT/Cobra - 3 Piece Lightweight CNC Machined Aluminum Kit Read Review
- BBK is your Number One Aftermarket Performance Brand in the USA - American Designed and Built
- Installing a Set of BBK Performance Underdrive Pulleys is one of the Easiest Ways to Gain Approximately 10-15 Horsepower
- Direct Replacement Pulley Kit For 96-01 (Thru March 01) GT and Cobra Re Uses Existing Serpentine Belt and Will Not Affect Cooling or Charging of the Vehicle
- Premium Quality CNC Machined Lightweight Billet Aluminum Pulley Kit Add Great Looks and Performance
- 3 Pc Kit Includes Crank (Piggy Backs with Factory Pulley), Water Pump and Alternator Pulleys and all Hardware and Instructions for Simple Installation
8
BBK 1559 Underdrive Pulley Kit for Ford Mustang 4.6/ GT - 3 Piece Lightweight CNC Machined Aluminum Kit Read Review
- BBK is your Number One Aftermarket Performance Brand in the USA - American Designed and Built
- Installing a Set of BBK Performance Underdrive Pulleys is one of the Easiest Ways to Gain Approximately 10-15 Horsepower
- Direct Replacement Pulley Kit For 01-04 (From April 01) GT only Re Uses Existing Serpentine Belt and Will Not Affect Cooling or Charging of the Vehicle
- Premium Quality CNC Machined Lightweight Billet Aluminum Pulley Kit Add Great Looks and Performance
- 3 Pc Kit Includes Crank (Piggy Backs with Factory Pulley), Water Pump and Alternator Pulleys and all Hardware and Instructions for Simple Installation
9
BBK 1554 Underdrive Pulley Kit for Ford Mustang 5.0L - 3 Piece Lightweight CNC Machined Aluminum Kit Read Review
- BBK is your Number One Aftermarket Performance Brand in the USA - American Designed and Built
- Installing a Set of BBK Performance Underdrive Pulleys is one of the Easiest Ways to Gain Approximately 10-15 Horsepower
- Direct Replacement Pulley Kit Re Uses Existing Serpentine Belt and Will Not Affect Cooling or Charging of the Vehicle
- Premium Quality CNC Machined Lightweight Billet Aluminum Pulley Kit Add Great Looks and Performance
- 3 Pc Kit Includes Crank, Water Pump and Alternator Pulleys and all Hardware and Instructions for Simple Installation
10
BBK 1598 Underdrive Pulley Kit for GM 305/350 F-Body/Truck - 3 Piece CNC Machined Aluminum Read Review
- BBK is your Number One Aftermarket Performance Brand in the USA - American Designed and Built
- Installing a Set of BBK Performance Underdrive Pulleys is one of the Easiest Ways to Gain Approximately 10-15 Horsepower
- Direct Replacement Pulley Kit Re Uses Existing Serpentine Belt and Will Not Affect Cooling or Charging of the Vehicle
- Premium Quality CNC Machined Lightweight Billet Aluminum Pulley Kit Add Great Looks and Performance
- 3 Pc Kit Includes Crank, Water Pump and Alternator Pulleys and all Hardware and Instructions for Simple Installation
