Engines and Components› Crankshafts and Components

Nonstop Tuning

NST Crankshaft Pulley Kit

$268.00

SKU: NST13710K

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The NonStopTuning Nissan 370Z & G37 Pulley Kit is designed to increase horsepower through weight reduction and accessory underdriving. This kit features an overdrive alternator pulley, optimizing output for audio systems without compromising battery or electrical function.

Constructed from 6061-T6 aircraft quality aluminum, each pulley is CNC machined and tested for precise tolerances and balance. The pulleys are hard anodized for durability and come in various color options. A Gates K070786 belt is required and available for purchase.
Show original supplier description
The NonStopTuning Nissan 370Z & Infiniti G37 VQ37HR Pulley Kit is engineered to boost horsepower by significantly reducing weight and underdriving accessories. Each pulley in the NST kit is precision CNC machined from 6061-T6 aircraft-quality aluminum, ensuring tight machining and balance tolerances. The crank pulley weighs approximately 19 ounces (550 grams), while the alternator pulley is a mere 2.5 ounces (75 grams), representing a 70-75% weight reduction compared to OEM parts. For enhanced longevity and strength, all NST pulleys undergo a hard anodization process. They are available in multiple colors to customize your engine bay's appearance. Installation of this pulley kit requires the Gates K070786 serpentine belt, which can be purchased separately. The manufacturer highlights that their pulleys are stronger and more durable than OEM cast iron components, as the anodized aluminum will not corrode. Additionally, NST crank pulleys feature oil sleeves where necessary and proper timing marks, features often absent in competing products. The weight reduction and smoother operation provided by these pulleys contribute to improved throttle response and potentially better fuel economy. NonStopTuning also notes their commitment to ongoing research and development, offering a wider selection of pulleys than many competitors.

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

BrandNonstop Tuning
Part NumberNST13710K
CategoryEngines and Components
5,000+ Trusted brands
1M+ Enthusiasts
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(760) 282-4645 hello@motormia.co

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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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