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Engines and Components› Belts and Pulleys
Jet Performance Products
~(5 lbs. 6X6X4)~ JET Pulley Set
SKU: J008 90126
Easy — 1–2 hours
Overview
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Vehicle Symptoms
- Engine feels sluggish under acceleration
- Poor fuel economy compared to expected
- Wanting to free up horsepower without major mods
- Accessory load seems to drag engine down
Relevant Conversations
- Jet Performance 90126 serpentine pulley kit reviews
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- how to reclaim lost horsepower from accessories
- serpentine pulley kit vs stock pulley comparison
- Jet Performance pulley kit 90126 installation instructions
- best underdrive pulleys for 5.7L Hemi
- reduce parasitic drag on engine pulleys
- Jet Performance 90126 on 2005 Mustang GT
- serpentine belt pulley kit for performance gains
- does underdrive pulley affect alternator charging
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
| Brand | Jet Performance Products |
| Part Number | J008 90126 |
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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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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.
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