Walker Products ThunderSpark Ignition Coil - 921-2027

Walker Products ThunderSpark Ignition Coil - 921-2027

SKU: WPR-921-2027

Walker Products

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Product details

Part Name Ignition Coil
Brand Walker Products
Part Number 921-2027
UPC 00724620055362

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Fitment is guaranteed:

If your vehicle is listed on the fitment table below, the product will fit your car - we guarantee it. All you need to do is to ensure that the vehicle's Year, Make, Model, Trim, and any other notes specified inside the fitment table are respected.

Included warranty:

For warranty coverage information, please see our Warranty Policy.

Warranty starts from the date of delivery.
Proof of purchase required for all claims.
Covers manufacturing defects only.
Does not cover normal wear & tear.
Does not cover cosmetic damage or rust damage.

To initiate a claim, simply send an email to support@partspioneer.ca. For more information, read our Warranty Policy.

Choose Walker Products because:

ThunderSpark Ignition Coils and Coil Sets are precision-engineered OE Replacement components designed to restore ignition system integrity and performance across modern gasoline engines. Each coil is built to match or exceed original equipment specifications for voltage output, resistance, and inductive response, supporting strong combustion under load. Constructed with high-dielectric epoxy, premium copper windings, and heat-resistant housings, these coils are built to handle the extreme temperatures and electrical demands found in today’s engine bays. Designed for exact OE fitment, they connect directly to factory harnesses and mount securely in place for coil-on-plug (COP), coil-near-plug (CNP), and distributorless ignition systems. Coil sets are available to simplify full engine service, reduce misfire diagnostics time, and improve overall ignition reliability. Whether replacing a single failed coil or refreshing the entire set during a tune-up, Walker Ignition Coils and Coil Sets deliver dependable spark performance, emissions compliance, and restored throttle response for everyday and high-mileage vehicles alike.

Characteristics include:

Enhanced Fuel Efficiency: By delivering precise and reliable spark, these coils contribute to better fuel combustion, optimizing fuel efficiency, and reducing emissions for a more eco-friendly vehicle operation.
Optimal Ignition Performance: Our premium Ignition Coils deliver consistent and efficient ignition, ensuring smooth engine operation and improved fuel efficiency.
Effortless Installation: Designed for easy and hassle-free installation, these coils minimize vehicle downtime during replacement, keeping your vehicle on the road.
Engineered for OE Performance: These coils are meticulously engineered and rigorously tested to meet and exceed OE performance and durability standards, ensuring reliable ignition and consistent spark output.
Rugged Build: Crafted with high-quality materials, these coils are built to withstand harsh conditions, providing long-lasting performance and reducing the need for frequent replacements.

Some of the interchangeable part numbers are:

06B905115S | 06C905115C | 50084 | GN10345 | GN10444 | 12728 | 12792 | ZSE043 | C-591 | 133806 | 2503806 | IC-53 | 36-8045 | 36-8057 | C1394 | 06A 905 115D | 00109 | 0986221024 | 0986221053 | COP-205 | UF411 | UF411T | E891 | E983 | 5C1391 | 673-9300 | 673-9301 | 06A905115 | 06A905115A | 06A905115B | 06A905115C | 06A905115D | 06B905115D | 06B905115G | 06B905115H | 06B905115J | 06B905115L | 06B905115M | 06B905115N | 06B905115P | 06B905115Q | 06B905115R | 06C905115L

Customer Video Reviews

Watch genuine customer videos showing their upgrades and honest results of similar products

Fitment Table

This product is compatible with these vehicles:

Year	Make	Model	Notes
2012	Volkswagen	Clasico	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2011	Volkswagen	Clasico	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2010	Volkswagen	Jetta	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2009	Volkswagen	Jetta	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2008	Audi	A4	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2007	Audi	A4	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2006	Audi	A4	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2006	Audi	TT	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2006	Audi	TT Quattro	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2006	Volkswagen	Golf	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2005	Audi	A4	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2005	Audi	A4 Quattro	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2005	Audi	Allroad Quattro	2.7L V engine 6 cylinders 3.19" bore 3.39" stroke
2005	Audi	TT	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2005	Audi	TT Quattro	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2005	Volkswagen	Beetle	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2005	Volkswagen	Golf	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2005	Volkswagen	Jetta	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2005	Volkswagen	Passat	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2004	Audi	A3	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke Engine Designation : AUQ
2004	Audi	A4	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2004	Audi	A4 Quattro	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2004	Audi	A6	3.0L V engine 6 cylinders 3.25" bore 3.40" stroke From Chassis/VIN 4B-3-103 001
2004	Audi	A6	3.0L V engine 6 cylinders 3.25" bore 3.65" stroke From Chassis/VIN 4B-3-103 001
2004	Audi	A6 Quattro	2.7L V engine 6 cylinders 3.19" bore 3.39" stroke
2004	Audi	A6 Quattro	3.0L V engine 6 cylinders 3.25" bore 3.40" stroke From Chassis/VIN 4B-3-103 001
2004	Audi	A6 Quattro	3.0L V engine 6 cylinders 3.25" bore 3.65" stroke From Chassis/VIN 4B-3-103 001
2004	Audi	Allroad Quattro	2.7L V engine 6 cylinders 3.19" bore 3.39" stroke
2004	Audi	TT	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2004	Audi	TT Quattro	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2004	Volkswagen	Beetle	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2004	Volkswagen	Golf	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2004	Volkswagen	Jetta	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2004	Volkswagen	Passat	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2003	Audi	A3	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2003	Audi	A4	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2003	Audi	A4 Quattro	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2003	Audi	A6	3.0L V engine 6 cylinders 3.25" bore 3.65" stroke From Chassis/VIN 4B-3-103 001
2003	Audi	A6 Quattro	2.7L V engine 6 cylinders 3.19" bore 3.39" stroke
2003	Audi	A6 Quattro	3.0L V engine 6 cylinders 3.25" bore 3.65" stroke From Chassis/VIN 4B-3-103 001
2003	Audi	Allroad Quattro	2.7L V engine 6 cylinders 3.19" bore 3.39" stroke
2003	Audi	S3	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2003	Audi	TT	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2003	Audi	TT Quattro	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2003	Volkswagen	Beetle	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2003	Volkswagen	Golf	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2003	Volkswagen	Jetta	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2003	Volkswagen	Passat	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2002	Audi	A3	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2002	Audi	A4	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2002	Audi	A4 Quattro	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2002	Audi	S3	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2002	Audi	TT	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2002	Audi	TT Quattro	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke Engine code AWP
2002	Volkswagen	Beetle	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2002	Volkswagen	Golf	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2002	Volkswagen	Jetta	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2002	Volkswagen	Passat	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2001	Audi	A3	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2001	Audi	A4	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2001	Audi	A4 Quattro	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2001	Audi	S3	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke
2001	Audi	TT	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke Engine code AWP
2001	Audi	TT Quattro	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke Engine code AWP
2001	Volkswagen	Beetle	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke From Chassis/VIN 1c-1-400 001
2001	Volkswagen	Golf	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke Engine code AWW
2001	Volkswagen	Jetta	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke Engine code AWW
2001	Volkswagen	Passat	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke Engine code AUG
2000	Volkswagen	Passat	1.8L Inline engine 4 cylinders 3.19" bore 3.40" stroke Engine code AUG

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