Walker 921-2126 Ignition Coil

Walker ThunderSpark Ignition Coil

Walker ThunderSpark ignition coil Part Number 921-2126 is a direct-fit ignition coil for a range of Toyota, Lexus, Scion, Pontiac, and Chevrolet applications. It supports reliable spark delivery for vehicles such as the Toyota Corolla, Prius, and Lexus CT200h when the original coil is worn or failing.

Key Features

• Walker ThunderSpark ignition coil for OE-style replacement use
• Part Number 921-2126 for easy identification
• Compatible with select Toyota Corolla, Prius, Prius V, C-HR, Matrix, and Prius Plug-In applications
• Also fits select Lexus CT200h, Scion xD, Scion iM, Pontiac Vibe, and Chevrolet Prizm models
• Supports consistent ignition performance across listed fitments

Fitment Details

• Fits 2022 Toyota C-HR, N/A, Single Coil
• Fits 2018-2021 Toyota C-HR, N/A, ThunderSpark
• Fits 2009-2019 Toyota Corolla, N/A, ThunderSpark
• Fits 2017-2018 Toyota Corolla iM, N/A, ThunderSpark
• Fits 2018 Toyota Prius V, N/A, Single Coil
• Fits 2011-2017 Lexus CT200h, N/A, ThunderSpark
• Fits 2012-2017 Toyota Prius V, N/A, ThunderSpark
• Fits 2016 Scion iM, N/A, ThunderSpark
• Fits 2010-2015 Toyota Prius, N/A, ThunderSpark
• Fits 2012-2015 Toyota Prius Plug-In, N/A, ThunderSpark
• Fits 2008-2014 Scion xD, N/A, ThunderSpark
• Fits 2014 Toyota Matrix, N/A, Single Coil
• Fits 2009-2013 Toyota Matrix, N/A, ThunderSpark
• Fits 2003-2010 Pontiac Vibe, N/A, ThunderSpark
• Fits 2000-2002 Chevrolet Prizm, N/A, ThunderSpark

What It Helps Address

• Engine misfire conditions tied to a weak ignition coil
• Rough idle in Toyota Corolla and Toyota Prius applications
• Hard starting caused by inconsistent spark output
• Loss of acceleration response from ignition breakdown
• Check engine light concerns related to ignition performance

Installation Notes

Verify the year, make, model, and engine application before installation. Compare the original coil connector, mounting style, and engine layout to confirm the correct match for your Toyota Corolla, Prius, or Lexus CT200h application. Part Number 921-2126 should be installed on the correct listed vehicle only.

Quality Assurance

Walker ThunderSpark is the product line identified for this ignition coil, and Part Number 921-2126 is cataloged for the listed OE-style applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.