Motorcraft
Motorcraft Spark Plug - SP521X (OEM Replacement Part for Select Years of Ford E-150/E-250/E-350 Super Duty/E-450 Super Duty and Panoz Esperante Vehicles)
Motorcraft Spark Plug - SP521X (OEM Replacement Part for Select Years of Ford E-150/E-250/E-350 Super Duty/E-450 Super Duty and Panoz Esperante Vehicles)
SKU:MI-SP521X
In stock
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- Genuine brand-name parts
- Ships from US warehouse
- 30-day returns
The Motorcraft SP521X is a spark plug for 2004–2006, 2009–2019 Ford F-250 Super Duty. It is a new, genuine Motorcraft part with the manufacturer warranty, shipped from the closest US warehouse.
Fits: 2004–2006, 2009–2019 Ford F-250 Super Duty
Key features
- Part Number: SP521X
- Application: Ford: (2009-2014 E-150, 2009-2014 E-250, 2009-2019 E-350 Super Duty, 2009-2019 E-450 Super Duty) / Panoz: (2004-2006 Esperante)
- Parts Interchange: AGSF22F1X
- Supersedes Part Number: SP521, AGSF22F1
- Copper core, platinum electrode tip, and nickel ground electrode tip
- All Motorcraft spark plugs meet tough Ford Engineering standards
- Original equipment specifications - same spark plugs that were installed when the engine left the assembly line
Specifications
| Brand | Motorcraft |
|---|---|
| Manufacturer part number | SP521X |
| Part type | Spark Plug |
| UPC / GTIN | 31508776463 |
| Vehicle fitment | 2004–2006, 2009–2019 Ford F-250 Super Duty |
| Weight | 0.10 lb |
| Dimensions (L × W × H) | 3.4 × 1 × 1 in |
| Category | Engine & Drivetrain |
| Condition | New — genuine brand-name part |
| Warranty | Manufacturer warranty |
Questions
Will this fit my vehicle?
It is listed for 2004–2006, 2009–2019 Ford F-250 Super Duty. Trim, engine and options can change the part a vehicle needs — send us your VIN and we will confirm before you order.
How fast does it ship?
Orders ship from the closest US warehouse, normally within 1–3 business days, with tracking by e-mail.
Is this a genuine Motorcraft part?
Yes — new and genuine Motorcraft, with the manufacturer warranty.
Can I return it?
Yes. Unused items can be returned within 30 days — see our refund policy for the details.
Shipping & delivery
Shipping & delivery
Orders ship from the distributor warehouse closest to you, normally within 1–3 business days of purchase. Standard ground delivery takes 3–7 business days in the continental US; expedited options are shown at checkout. Oversized items (bumpers, running boards, large tonneau covers, some marine equipment) ship LTL freight — we contact you to schedule delivery and a signature is required.
Returns & warranty
Returns & warranty
Unused, uninstalled parts in original packaging can be returned within 30 days of delivery. A restocking fee of up to 20% may apply depending on the product and supplier, and return shipping is the buyer’s responsibility unless the item arrived defective, damaged or incorrect. Every product carries the full manufacturer warranty. Contact us with your order number to start a return.
Fitment & part numbers
Fitment & part numbers
Verify fitment with the manufacturer part number shown above and your vehicle’s year, make, model and trim. If the listing says “Fits select…”, confirm your exact application before ordering. Not sure? Send us your VIN and the part number and we’ll check it for you.
