Pulleys - Crank, Underdrive

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PERRIN 22-26 Subaru WRX / 21-25 Crosstrek / 20-25 LGT/OBXT/FXT Lightweight Water - product view

PERRIN 22-26 Subaru WRX / 21-25 Crosstrek / 20-25 LGT/OBX...

$123.03$121.26
PERRIN 22-26 Subaru WRX / 21-25 Crosstrek / 20-25 LGT/OBXT/FXT Lightweight Water Pump Pulley - Red
PERRIN 22-26 Subaru WRX / 21-25 Crosstrek / 20-25 LGT/OBXT/FXT Lightweight Water - product view

PERRIN 22-26 Subaru WRX / 21-25 Crosstrek / 20-25 LGT/OBX...

$123.03$121.26
PERRIN 22-26 Subaru WRX / 21-25 Crosstrek / 20-25 LGT/OBXT/FXT Lightweight Water Pump Pulley - Blue
PERRIN 22-26 Subaru WRX / 21-25 Crosstrek / 20-25 LGT/OBXT/FXT Lightweight Water - product view

PERRIN 22-26 Subaru WRX / 21-25 Crosstrek / 20-25 LGT/OBX...

$123.03$121.26
PERRIN 22-26 Subaru WRX / 21-25 Crosstrek / 20-25 LGT/OBXT/FXT Lightweight Water Pump Pulley - Black
PERRIN 15-21 Subaru WRX / 18-20 Crosstrek / 14-18 FXT Lightweight Water Pump Pul - product view

PERRIN 15-21 Subaru WRX / 18-20 Crosstrek / 14-18 FXT Lig...

$123.03$121.26
PERRIN 15-21 Subaru WRX / 18-20 Crosstrek / 14-18 FXT Lightweight Water Pump Pulley - Red
PERRIN 15-21 Subaru WRX / 18-20 Crosstrek / 14-18 FXT Lightweight Water Pump Pul - product view

PERRIN 15-21 Subaru WRX / 18-20 Crosstrek / 14-18 FXT Lig...

$123.03$121.26
PERRIN 15-21 Subaru WRX / 18-20 Crosstrek / 14-18 FXT Lightweight Water Pump Pulley - Blue
PERRIN 22-26 Subaru WRX/BRZ & Toyota GR86 / 20-25 FXT/OBXT Lightweight Crank Pul - product view

PERRIN 22-26 Subaru WRX/BRZ & Toyota GR86 / 20-25 FXT/OBX...

$216.06$200.35
PERRIN 22-26 Subaru WRX/BRZ & Toyota GR86 / 20-25 FXT/OBXT Lightweight Crank Pulley - Black
PERRIN 19-21 Subaru WRX / 16-18 Forester / 15-19 Legacy Lightweight Crank Pulley - product view

PERRIN 19-21 Subaru WRX / 16-18 Forester / 15-19 Legacy L...

$216.06$200.35
PERRIN 19-21 Subaru WRX / 16-18 Forester / 15-19 Legacy Lightweight Crank Pulley - Red
GFB 13+ Subaru BRZ / 13+ Scion FR-S Lightweight Aluminum Water Pump Pulley - product view

GFB 13+ Subaru BRZ / 13+ Scion FR-S Lightweight Aluminum ...

$141.82
GO FASTER ? ADD LIGHTNESS, GFB's Lightweight Pulley Kits offer sharper throttle response and faster acceleration by significantly reducing the rotating mass at the engine. Made from a single billet...
GFB 13+ Subaru BRZ / 13+ Scion FR-S Lightweight Alternator Pulley - product view

GFB 13+ Subaru BRZ / 13+ Scion FR-S Lightweight Alternato...

$77.81
GO FASTER ? ADD LIGHTNESS, GFB's Lightweight Pulley Kits offer sharper throttle response and faster acceleration by significantly reducing the rotating mass at the engine. Made from a single billet...
GFB 13 Subaru BRZ / 13 Scion FR-S 3 Pc L/W Pulley Kit (Inc Crank/Alternator/Wate - product view

GFB 13 Subaru BRZ / 13 Scion FR-S 3 Pc L/W Pulley Kit (In...

$381.00$359.59
GO FASTER ? ADD LIGHTNESS, GFB's Lightweight Pulley Kits offer sharper throttle response and faster acceleration by significantly reducing the rotating mass at the engine. Made from a single billet...
GFB 08+ WRX/STi / 09+ Forester / 03-09 LGT 3 pc Underdrive/Non-Underdrive Pulley - product view

GFB 08+ WRX/STi / 09+ Forester / 03-09 LGT 3 pc Underdriv...

$381.00$359.59
Go Faster ? Add Lightness, GFB's Lightweight Pulley Kits offer sharper throttle response and faster acceleration by significantly reducing the rotating mass at the engine. Made from a single billet...
Ford Racing 79-93 Mustang Off-Road Idler Bracket - product view

Ford Racing 79-93 Mustang Off-Road Idler Bracket

$141.74
Do you have a Mustang that you use only for racing? Then why don't you get rid of the air pump? They're not needed on racing vehicles, and you will...
Ford Racing 96-10 Mustang 4.6L (SOHC/DOHC) A/C Eliminator Kit - product view

Ford Racing 96-10 Mustang 4.6L (SOHC/DOHC) A/C Eliminator...

$104.71
These Ford Racing air conditioning eliminator kits are just the ticket for taking off unwanted front-end weight. Lightening the front of your vehicle improves rear weight transfer and reduces ETs,...
Fleece Performance 03-12 Dodge 2500/3500 Cummins Fan Drive Pulley (Black Finish) - product view

Fleece Performance 03-12 Dodge 2500/3500 Cummins Fan Driv...

$107.92
Fleece Performance billet aluminum fan drive pulley in black anodized finish for the 2003-2012 Cummins equipped RAM. Our pulley is a direct replacement for OE part number 4930580 and has...
Fleece Performance 13-18 Dodge 2500/3500 Cummins Fan Drive Pulley (Black Finish) - product view

Fleece Performance 13-18 Dodge 2500/3500 Cummins Fan Driv...

$107.90
Fleece Performance billet aluminum fan drive pulley in black anodized finish for the 2013-2018 Cummins equipped RAM. Our pulley is a direct replacement for OE part number 5295226 and has...
Fleece Performance 03-18 Dodge 2500/3500 Cummins Upper Fan Pulley Idler (Black C - product view

Fleece Performance 03-18 Dodge 2500/3500 Cummins Upper Fa...

$130.71
Fleece Performance 03-18 Dodge 2500/3500 Cummins Upper Fan Pulley Idler (Black Contrast)
BBK 93-97 Camaro Firebird LT1 Underdrive Pulley Kit - Aluminum - product view

BBK 93-97 Camaro Firebird LT1 Underdrive Pulley Kit - Alu...

$140.03$136.73
All BBK Performance parts are backed by a 1-YEAR manufacturer’s warranty from the original date of purchase. An optional extended warranty is also available - giving you an additional 2...
BBK 96-01 Mustang 4.6 GT Cobra Underdrive Pulley Kit - Lightweight CNC Billet Al - product view

BBK 96-01 Mustang 4.6 GT Cobra Underdrive Pulley Kit - Li...

$320.08$296.75
Install a set of BBK performance underdrive pulleys and see an average of 8-15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw...
Aeromotive 28-Tooth Pulley - product view

Aeromotive 28-Tooth Pulley

$214.37
Aeromotive Inc. is a true high performance aftermarket manufacturer specializing in fuel delivery and fuel delivery components. Utilizing aerospace tolerances and procedures, three generations of track experience, and a meticulous...

Upgrade your ride with premium pulleys - crank, underdrive from Bull Strap. This collection of Pulleys - Crank, Underdrive is built to meet the demands of serious enthusiasts. Every product in our Pulleys - Crank, Underdrive lineup has been selected to deliver uncompromising quality and performance.

At Bull Strap, we understand that your vehicle is more than just transportation — it's a reflection of your lifestyle. That's why we stock only the best pulleys - crank, underdrive, sourced from industry-leading manufacturers known for durability and precision engineering. Whether you're building a daily driver or a weekend trail rig, you'll find exactly what you need.

Browse our full selection below and find the perfect fit for your build. Bull Strap offers fast shipping, expert support, and competitive pricing on every order. Have questions? Our team is here to help you choose the right parts for your vehicle.