Ignitions and Electrical› Ignition Components

NPBoosted

ZR303 3-Pin Ignition Coil Set

$119.95

SKU: NP-ZR303

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Special Order
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$100 Minimum Order
30 Days Return
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Overview

The NPBoosted NP-ZR303 is a set of five aftermarket ignition coils designed as direct replacements for specific GM, Isuzu, Buick, Oldsmobile, Saab, and Hummer vehicles. These coils feature a 3-pin plug design and are engineered to fit engines ranging from 2.8L to 4.2L across 4, 5, and 6-cylinder configurations.
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The NPBoosted NP-ZR303 ignition coils are offered as a set of five, providing a direct replacement solution for various GM, Isuzu, Buick, Oldsmobile, Saab, and Hummer vehicles. These coils feature a 3-pin plug design and are compatible with a range of gasoline engines, specifically those that are 2.8L, 2.9L, 3.5L, 3.7L, and 4.2L inline 4, 5, or 6-cylinder configurations. This set is designed for OEM fitment and ensures direct replacement for the original part number NP-ZR303. The comprehensive fitment guide lists specific applications, including Chevrolet Colorado and GMC Canyon models from 2004-2006 with 2.8L and 3.5L engines, Isuzu I-350 (3.5L) and I-280 (2.8L) from 2006, I-290 (2.9L) and I-370 (3.7L) from 2007-2008. It also covers Buick Rainier, Chevrolet Trailblazer, Isuzu Ascender, GMC Envoy, Oldsmobile Bravada, and Saab 9-7X models with 4.2L engines, as well as the Hummer H3 with a 3.5L engine (2006 model).

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

BrandNPBoosted
Part NumberNP-ZR303
CategoryIgnitions and Electrical
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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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