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Motorcraft Platinum Spark Plug (AGSF22WM): Enhanced Durability & Reliability

(180 reviews)
Part # SP-479
2 year warranty
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Product Information

Product Details
Part No. SP-479
Warranty Details (2 Year Warranty)
Platinum Spark Plug (AGSF22WM) offers enhanced durability and reliability, making it the ideal choice for maintaining peak performance in Ford, Lincoln, and Mercury vehicles. Engineered to meet strict Ford standards, these spark plugs are crafted with platinum center and ground electrode tips for superior resistance to oxidation and arc erosion, ensuring long-lasting performance. The tapered seat design and multi-rib insulator work together to eliminate misfires, reduce fuel consumption, and optimize emissions, while preventing false check engine lights. With service intervals of up to 100,000 miles, these spark plugs deliver exceptional value and reliability for both domestic and import cars and trucks. Backed by Motorcraft's Service Parts Warranty, they are the exact fit for your vehicle, providing the same high-quality performance as the original equipment installed during manufacturing. Designed for a broad range of applications, Motorcraft spark plugs are the trusted solution for drivers seeking confidence and efficiency on the road.

Product Features:
  • Motorcraft spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption and optimize emissions.
  • Backed by Motorcraft's Service Parts Warranty
  • Exact fit for Ford, Lincoln and Mercury vehicles
  • Resistant to oxidation and arc erosion.
  • Multi-rib insulator protects against misfire.
  • Service intervals of up to 100,000 miles.
  • Motorcraft Spark Plugs are designed with high quality materials to provide reliable performance for almost any application.
  • Motorcraft Spark Plugs are what was in the vehicle when it was manufactured
  • Motorcraft ignition components help prevent false check engine lights.
Specifications
Center Electrode Tip Material:
Platinum

Electrode Core Material:
Copper Core

Electrode Tip Material:
Platinum Alloy

Ground Electrode Tip Material:
Platinum

Ground Strap Quantity:
1

Hex Size:
0.63

Insulator Height:
2.03

Insulator Type:
Standard

Manufacturer Heat Range:
3

Reach:
0.679 in

Resistor:
Yes

Seat Type:
Tapered

Thread Diameter:
14 mm

Tip Configuration:
Platinum Ball

Wrench Diameter:
5/8 in
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4.83 out of 5
180 Customer Reviews
97% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
156
4 Stars
18
3 Stars
5
2 Stars
1
1 Star
0
Pros
14
Improves Engine Efficiency
11
Increases Power
9
Durable
9
Easy To Install
1
Less Expensive
Cons
1
none
1
Installation Takes Time
Best Uses
14
Everyday Driving
14
Replacement
5
Performance Driving
5
Restoration
2
Racing
Car & Truck
3
Casual Driver
2
Auto Enthusiast
2
Truck Enthusiast
1
Competitive Driver
1
Mechanic
Describe Yourself
8
Auto Enthusiast
7
Truck Enthusiast
6
Casual Driver
2
Mechanic
1
Own 2004 Ford Excursion
Most Liked Positive Review
Ford F-150 OEM part (can't be beat)
Motorcraft Iridium Spark Plugs are great. Replacing the ones in my F-150 that have 130000 miles on them and still running.The proof of a great product is the durability this product has already shown me. These plugs are the OEM plugs recommended by FORD.
Most Liked Negative Review
FYI motocraft and autolite same
Both are made by the same manufacturer in the same factory so wether you go with these or autolites there the same. Motocraft is made to ford factory specs but so would the autolites or they wouldn't work. I will always stick with NGK R iridium plugs only reason I went with these is it's not my truck and customer wanted oem.
Reviewed by 180 Customers
Smooth idle
Staff Reviewer -
Be sure to use dielectric grease on plug boot and around spark plug ceramic and use anti-seize on the threads. Hand tighten to be sure you don't cross thread. Take your time if working on a expedition 5.4. It's not to bad with 1/4 in ratchet and various extensions.
Bottom Line Yes, I would recommend to a friend
good as new
Staff Reviewer -
Plugs work great. Had issues with autolite platinums so switched out to these. Truck runs like it was new.
Bottom Line Yes, I would recommend to a friend
oem replacement
Staff Reviewer -
oem direct replacement part
Bottom Line Yes, I would recommend to a friend
OE as described
Staff Reviewer -
OE as described, installed on a ford 5.4, follow directions and don't be in a hurry and it really is not bad
Bottom Line Yes, I would recommend to a friend
Ford F-150 OEM part (can't be beat)
Staff Reviewer -
Motorcraft Iridium Spark Plugs are great. Replacing the ones in my F-150 that have 130000 miles on them and still running.The proof of a great product is the durability this product has already shown me. These plugs are the OEM plugs recommended by FORD.
Bottom Line Yes, I would recommend to a friend
Displaying Reviews 1 - 5Back to Top
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