Walker 921-2034 Ignition Coil

Walker ThunderSpark Ignition Coil 921-2034

Walker ThunderSpark ignition coil 921-2034 is a direct-fit ignition coil for select Toyota, Scion, and Prius applications. It is built for vehicles that need a reliable spark output to support consistent engine operation, including Toyota Prius, Toyota Yaris, Toyota Echo, Scion xA, and Scion xB coverage.

Key Features

• Walker ThunderSpark ignition coil for OE-style replacement use
• Fits select Toyota Prius C, Toyota Yaris, Toyota Prius, Toyota Echo, Scion xA, and Scion xB applications
• Application-specific fitment for vehicles listed below
• Part number 921-2034 for catalog and service matching
• Single-coil application noted in fitment data

Fitment Details

• Fits 2012-2021 Toyota Prius C, N/A, Single Coil
• Fits 2019 Toyota Yaris, N/A, To 07/2019; Single Coil
• Fits 2017-2018 Toyota Yaris, N/A, Single Coil
• Fits 2004-2006 Toyota Yaris, N/A, Single Coil
• Fits 2007-2016 Toyota Yaris, N/A, ThunderSpark
• Fits 2001-2009 Toyota Prius, N/A, ThunderSpark
• Fits 2004-2006 Scion xA, N/A, ThunderSpark
• Fits 2004-2006 Scion xB, N/A, ThunderSpark
• Fits 2000-2005 Toyota Echo, N/A, ThunderSpark

What It Helps Address

• Engine misfire conditions related to a weak ignition coil
• Rough idle caused by inconsistent spark delivery
• Hard starting tied to ignition coil wear
• Loss of engine smoothness under load
• Check engine light concerns associated with ignition performance

Installation Notes

Verify the vehicle year, make, model, and engine application before ordering. This ignition coil is listed for N/A position fitment and should be matched to the exact application shown in the fitment table. Confirm connector style and mounting layout against the original part before installation.

Quality Assurance

Walker ThunderSpark 921-2034 is cataloged as an application-specific ignition coil for the listed Toyota, Scion, and Prius vehicles. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.