Engines and Components Belts and Pulleys

IPSCO

Billet Aluminum Idler Pulley

$253.00

SKU: IPS173-GEN4/5

In Stock
In Stock
Ships by Aug 3
Free Shipping over $100
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The IPSCO Gen 4/5 Billet Pulleys are designed as direct replacements for factory pulleys in 2008-2017 Vipers. The Idler Pulley replaces the original steel component with a durable billet aluminum version that includes a replaceable bearing for extended service life. Similarly, the Belt Tensioner Pulley upgrades the stock plastic tensioner pulley to a robust billet aluminum construction, also featuring a replaceable bearing. The Under Drive Crank Pulley is engineered to reduce the rotational speed of the water pump, alternator, power steering pump, and AC by 25%. This underdriving not only helps prevent water pump cavitation but also results in a modest performance gain of 5-10 HP. This pulley comes complete with new M8 X 1.25 Grade 8 mounting hardware for a straightforward installation.

MIA's Description

The IPSCO Idler Pulley is a billet aluminum replacement for the factory steel pulley. It features a replaceable bearing for longevity. The IPSCO Belt Tensioner Pulley also replaces the factory plastic tensioner pulley with a billet aluminum version, also featuring a replaceable bearing.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandIPSCO
Part NumberIPS173-GEN4/5
CategoryEngines and Components

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy