Ignitions and Electrical› Ignition Components

Champion

Iridium Spark Plug

$23.86

SKU: RERX4ZWYPB-1

In Stock
In Stock
Ships by Sep 13
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$100 Minimum Order
30 Days Return
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Overview

The Champion 9425 RERX4ZWYPB-1 is an iridium spark plug designed for long life and erosion resistance. It features a 0.7mm fine wire iridium tipped center electrode and a platinum v-trimmed ground electrode. The spark plug has a heat range of 4, a thread reach of 1.080 inches, a gasket seat, an M12 thread size, and a 14mm hex size.
Show original supplier description
The Champion 9425 RERX4ZWYPB-1 is a high-performance iridium spark plug engineered for extended service life and superior erosion resistance. Its construction features a precision 0.7mm fine wire iridium tipped center electrode, paired with a durable platinum v-trimmed ground electrode. This design ensures optimal ignition performance and longevity. Key specifications for this plug include a heat range of 4, a thread reach of 1.080 inches, and an M12 thread size with a gasket seat and a 14mm hex size. The plug's specific design aims to provide reliable spark delivery across various operating conditions. This spark plug is compatible with select BMW X3 (2014-2021), BMW X1, and Mini Cooper models, as well as various BMW 3, 4, 5, 6, and 7 series vehicles. Always verify fitment for your specific vehicle's year, make, model, and engine to ensure correct application.

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

BrandChampion
Part NumberRERX4ZWYPB-1
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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