Engines and Components› Belts and Pulleys

NST (NonStopTuning)

OEM-Diameter Performance Pulley Set

$268.00

SKU: NST08600K

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

These OEM-diameter pulleys do not underdrive or overdrive accessories, but contribute to better throttle response and increased horsepower and torque. They are compatible with naturally aspirated, turbocharged, or supercharged engines.
Show original supplier description
These pulleys maintain OEM diameter, ensuring they neither underdrive nor overdrive essential accessories. This design facilitates enhanced throttle response and noticeable gains in horsepower and torque, making them suitable for naturally aspirated, turbocharged, or supercharged configurations. Constructed from 6061-T6 aircraft-quality aluminum, the NST pulleys offer a significant weight reduction of 70-75% compared to OEM components. The Crank, Alternator, and Water Pump pulleys feature a durable hard-anodized finish for exceptional longevity, with a choice of colors available. For superior strength and wear resistance, the Idler and Tensioner pulleys are exclusively hard-anodized, resulting in a unique graphite gray color and maximum durability. Each kit is CNC-machined to tight tolerances and balanced for smooth operation. Unlike some competitors, NST crank pulleys include necessary oil sleeves and feature proper timing marks for easier installation and more accurate engine tuning.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandNST (NonStopTuning)
Part NumberNST08600K
CategoryEngines and Components

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Returns & Fitment

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.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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