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Ignitions and Electrical› Ignition Components

Champion

Iridium Spark Plug

$11.49 $9.19 Save $2.30

SKU: RC12WMPB4

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Champion RC12WMPB4 is an iridium spark plug engineered to provide maximum performance and exceptional longevity. Its construction includes a 0.7mm fine wire iridium-tipped center electrode, paired with a platinum v-trimmed ground electrode. This spark plug is a direct replacement for various OEM part numbers, including select Honda and Toyota applications. For instance, it replaces Honda part numbers 9807B-561-7W and 9807B-56A-7W, as well as Toyota 90080-91181. It is also identified as Champion part number 9202. One user indicated that a 4.7L Jeep Commander specifically requires the RC12WMPB4, contrasting it with the RE14WMPB4 used in a 5.9L Hemi. The Champion RC12WMPB4 is backed by a 7-year replacement warranty if defective.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandChampion
Part NumberRC12WMPB4
CategoryIgnitions and Electrical

Buy with Confidence

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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