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.
ThunderSpark Coil Boots and Coil Boot Kits are OE Replacement components designed to restore critical spark isolation and electrical connection in modern ignition systems. In coil-on-plug (COP) or coil-near-plug (CNP) configurations, coil boots serve as the insulative path between the ignition coil and the spark plug. Over time, these boots can degrade due to heat, vibration, or chemical exposure—leading to arc-through, misfires, or hard starting. Walker coil boots are engineered to match OE specifications for dielectric strength, length, and terminal fitment, ensuring proper high-voltage insulation and secure coil-to-plug contact. Each boot is constructed from premium silicone and other high-temperature materials to withstand engine bay conditions. Coil Boot Kits include all necessary components—boots, springs, and insulators—for full-cylinder service, making them ideal for ignition tune-ups or preventative maintenance. Whether replacing a single boot or servicing an entire engine set, Walker Coil Boots and Kits help restore ignition reliability, engine smoothness, and emissions performance.
Characteristics include:
Complete Kit Coverage: Coil Boot Kits include boots, springs, and insulators needed for full cylinder replacement—ideal for tune-ups and repairs.
Exact OE Fit: Designed for 100% compatibility with factory ignition coils and spark plugs for coil-on-plug and coil-near-plug systems.
Restores Ignition Insulation: Replaces worn or cracked boots to ensure proper spark isolation and prevent voltage loss.
Heat & Chemical Resistant: Constructed from high-temp silicone and reinforced materials to resist oil, fuel, and under-hood heat.
OE Replacement Quality: Engineered to match OE dielectric strength, boot length, and connector geometry for consistent performance.
Some of the interchangeable part numbers are:
121002
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
Position
2008
Ford
F-350 Super Duty
6.8L
V engine
10 cylinders
3.55" bore
4.16" stroke
2008
Ford
F-450 Super Duty
6.8L
V engine
10 cylinders
3.55" bore
4.16" stroke
2008
Ford
F-53 Motorhome Chassis
6.8L
V engine
10 cylinders
3.55" bore
4.16" stroke
2008
Ford
F-550 Super Duty
6.8L
V engine
10 cylinders
3.55" bore
4.16" stroke
2007
Ford
F-250 Super Duty
6.8L
V engine
10 cylinders
3.55" bore
4.16" stroke
2007
Ford
F-350 Super Duty
6.8L
V engine
10 cylinders
3.55" bore
4.16" stroke
2007
Ford
F-450 Super Duty
6.8L
V engine
10 cylinders
3.55" bore
4.16" stroke
2007
Ford
F-53 Motorhome Chassis
6.8L
V engine
10 cylinders
3.55" bore
4.16" stroke
2007
Ford
F-550 Super Duty
6.8L
V engine
10 cylinders
3.55" bore
4.16" stroke
2006
Ford
F-250 Super Duty
6.8L
V engine
10 cylinders
3.55" bore
4.16" stroke
2006
Ford
F-350 Super Duty
6.8L
V engine
10 cylinders
3.55" bore
4.16" stroke
2006
Ford
F-450 Super Duty
6.8L
V engine
10 cylinders
3.55" bore
4.16" stroke
2006
Ford
F-53 Motorhome Chassis
6.8L
V engine
10 cylinders
3.55" bore
4.16" stroke
2006
Ford
F-550 Super Duty
6.8L
V engine
10 cylinders
3.55" bore
4.16" stroke
2005
Ford
F-250 Super Duty
6.8L
V engine
10 cylinders
3.55" bore
4.16" stroke
2005
Ford
F-350 Super Duty
6.8L
V engine
10 cylinders
3.55" bore
4.16" stroke
2005
Ford
F-450 Super Duty
6.8L
V engine
10 cylinders
3.55" bore
4.16" stroke
2005
Ford
F-550 Super Duty
6.8L
V engine
10 cylinders
3.55" bore
4.16" stroke
See what other customers say:
Customer Reviews
Overall rating: 4.8 / 5 from 686 reviews.
This my second time buying from Partspionner.ca great parts quality parts fast shipping to your door no need to wait on parts counter for minutes save gas ;)
I had an excellent experience ordering from Parts Pioneer, my order was placed and shipped quickly and received. Excellent customer service, I will definitely use them again when needed and let many of my friends know about Part's Pioneer
The site was very easy to use. When I emailed with a question the response came quickly. I appreciated that you verified that the parts would fit my vehicle. I will use the site again.
La livraison se fait en un temps record, malheureusement il y a eu un erreur de pièce, par contre un service très professionnel, facile d'accès et dans ma langue natale..... Le retour est accepté sans frais. Tout les professionnels dans le domaines de la mécanique savent que des erreurs survient aléatoirement au niveaux pièces un jour ou l'autre, pas très agréable mais la ou ce joue la qualité du service est le service après vente et je peux confirmé la compétence de l'équipe Parts Pionner... Merci à l'équipe
Toujours en attente du ticket de retour mais j'ai confiance dans leurs bref délais...
LB Mécanique générale vous remercie et aux plaisirs de refaire affaire ensemble....!
This was my first dealing here. Easy to browse the site,the ordering process was quick and straightforward and shipping was fast and flawless. 10 out of 10.