SAVE 20% OFF ORDERS $100+ | ONLINE ONLY
USE CODE
FEB20
*
Exclusions apply.
✕
Advance Auto Parts Logo
1205 E Main St
Columbus, OH 43205
Will this part fit my vehicle?
Product thumb
Product thumb
Product main large
Add A Vehicle to Check Fitment
How Would You Like To Get This Item?

Store Pickup

Out of Stock
At 1205 E Main StColumbus, OH

Same Day Home Delivery

Loading...Loading...Loading...

Home Delivery

FREE for orders over $35

Standard Delivery Available

Curbside pickup is available at most stores
Loading...
$3 Rebate with the purchase of 4 or more Autolite Iridium Ultra or Iridium XP Spark Plugs (purchases must be on same transaction)

CUSTOMERS ALSO PURCHASED

    AAP Flag
    $9.99
    (1586)
    Autolite Iridium
    Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition
    AAP Flag
    $11.99
    (1205)
    ACDelco
    Iridium Spark Plug: Original Equipment Replacement
    AAP Flag
    $4.79
    (1656)
    Autolite
    Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration
    AAP Flag
    $22.99
    (107)
    FRAM Drive
    Engine Air Filter: Standard, Meets or Exceeds Manufacturer Specifications
    AAP Flag
    $6.49
    (842)
    Autolite
    Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life
    AAP Flag
    $11.99
    (1205)
    ACDelco
    Iridium Spark Plug: Original Equipment Replacement
    AAP Flag
    $11.99
    (1205)
    ACDelco
    Iridium Spark Plug: Original Equipment Replacement
    AAP Flag
    $18.99
    (2115)
    Mobil 1
    Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
    AAP Flag
    $18.99
    (107)
    FRAM Drive
    Engine Air Filter: Standard, Meets or Exceeds Manufacturer Specifications
    AAP Flag
    $37.99
    (2971)
    Mobil 1
    Advanced Full Synthetic Engine Oil 5W-30, 5 Quart

Product Information

Product Details
Part No. XP5324
Warranty Details (LIMITED LIFETIME REPLACEMENT)
Our best spark plug! Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance.

Product Features:
  • 0.6 mm finewire design improves ignitability
  • Patented V-trimmed platinum sidewire technology resists wear
  • OE equivalent design is engineered for every engine
  • Designed for better overall durability with virtually no gap erosion
  • Double Iridium-Enhanced Alloy Technology Center Electrode: Offers improved durability and wear resistance for a longer-lasting spark plug.
  • Designed and Engineered in the USA: Reflects over 100 years of Autolite's engineering experience and expertise.
  • Proven Track Record: Part of a legacy with over 11 billion spark plugs sold, ensuring trusted performance and reliability.
Specifications
Center Electrode Core Material:
Platinum

Center Electrode Tip Material:
Iridium

Electrical Terminal Type:
Stud

Ground Electrode Core Material:
Nickel

Ground Electrode Quantity:
1

Ground Electrode Tip Design:
Tapered

Ground Electrode Tip Material:
Iridium

Hex Size:
5/8" in

Pre-Gap Size:
0.044 in

Reach:
26.5 mm

Resistance:
4000

Resistor Type:
Yes

Seat Type:
Flat

Thread Diameter:
14 mm

YOU MAY ALSO LIKE

    AAP Flag
    $1.99
    (26)
    American Grease Stick Co.
    Spark Plug Boot Protector Dielectric Grease, Pouch, 4 g
    AAP Flag
    $1.99
    (28)
    American Grease Stick Co.
    Thread-Magic Anti-Seize Grease: Easy Installation & Removal and Heat Resistant
    AAP Flag
    $3.99
    (227)
    Performance Tool
    Precise Spark Plug Gap Gauge for Accurate Tuning
    AAP Flag
    $18.99
    (107)
    FRAM Drive
    Engine Air Filter: Standard, Meets or Exceeds Manufacturer Specifications
    AAP Flag
    $8.49
    (1015)
    E3
    DiamondFIRE Automotive Spark Plug: More Power, Saves Gas
    AAP Flag
    $18.99
    (1123)
    PurolatorBOSS
    Oil Filter: Ideal for Full Synthetic Oil, Protects up to 20,000 miles
    AAP Flag
    $7.49
    (222)
    Champion
    Double Platinum & Power Spark Plug Exceptional Perf OE Replacement RE14PMPB
    AAP Flag
    $14.99
    (1298)
    K&N
    Premium Oil Filter: Ideal for Synthetic & Conventional Oil, Protects Your Engine
    AAP Flag
    $28.99
    (127)
    FRAM
    Full Synthetic High Mileage 5W-30 Engine Oil: 5 Quart
    AAP Flag
    $12.99
    (506)
    DENSO
    Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, ITL16TT
4.64 out of 5
1586 Customer Reviews
81% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
1304
4 Stars
154
3 Stars
39
2 Stars
14
1 Star
75
I would not buy againGreat qualityLasted less than 1 year
Will buy this agianyeS5 stars if you get the right part deliveredGreat buy ! Better than NGK... lifetime warrantyI never buy again  electric parts.
Pros
50
Improves Engine Efficiency
49
Easy To Install
43
Increases Power
27
Durable
11
Lightweight
Cons
8
No Improvement In Performance
5
Decreases Gas Mileage
4
none
3
Difficult To Install
1
Not Oem
Best Uses
53
Everyday Driving
44
Replacement
21
Performance Driving
5
Racing
1
Restoration
Car & Truck
10
Casual Driver
6
Truck Enthusiast
5
Auto Enthusiast
4
Mechanic
1
Competitive Driver
Describe Yourself
26
Auto Enthusiast
26
Casual Driver
16
Mechanic
14
Truck Enthusiast
1
Competitive Driver
Most Liked Positive Review
Good Plug - Great Price
I bought this plug mainly becuase I wanted an Iridium plug that would have the durability, and reliability to match that of the OEM plugs. I spent a lot of time researching various plugs, but when it comes down to it; for a daily driver just about any plug will be fine. What I did like was that between the online savings code with Advance Auto and the mail-in rebate from Autolite, I was able to purchase these for less than $3 a plug. I put the plugs into both a 2002 Lincoln Navigator with the 5.4L and a 2002 Ford Mustang GT with the 4.6L. After a month of driving, both run very smoothly and are performing as expected. These are a good plug at a good price.
Most Liked Negative Review
Not Pleased
I just installed the Autolite Xtreme Iridium plugs and the 19 yr old nissan 3.0 v6 motor developed a rough idle and drop in performance. So yesterday I reinstalled the old plugs and the engine runs quite abit smoother. Oh well..
Loading...
Loading...
Loading...
Loading...
Loading...
Displaying Reviews 1 - 5Back to Top

FREQUENTLY BOUGHT TOGETHER

    AAP Flag
    $37.49
    (0)
    Carquest
    Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece
    AAP Flag
    $41.49
    (2)
    Carquest Premium
    Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece
    AAP Flag
    $77.99
    (0)
    Felpro
    Engine Intake Manifold Gasket Set
    AAP Flag
    $29.99
    (4078)
    Rain-X Latitude
    Wiper Blade: 26", Water Repellency 2-in-1 Premium Beam, Pack of 1
    AAP Flag
    $10.99
    (88)
    FRAM
    Extended Life All Vehicles Antifreeze 50/50 Ready-to Use, 1 Gallon
    AAP Flag
    $16.99
    (2115)
    Mobil 1
    Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
    AAP Flag
    $29.99
    (4078)
    Rain-X Latitude
    Wiper Blade: 22", Water Repellency 2-in-1 Premium Beam, Pack of 1
    AAP Flag
    $29.99
    (4078)
    Rain-X Latitude
    Wiper Blade: 24", Water Repellency 2-in-1 Premium Beam, Pack of 1
    AAP Flag
    $38.99
    (1328)
    Mobil 1
    5W-30 High Mileage Full Synthetic Motor Oil - Protection for 10K Miles, 5 Quart
    AAP Flag
    $41.99
    (232)
    Mobil 1
    Extended Performance 5W-20 High Mileage Full Synthetic Motor Oil, 5 Quart
Are these plugs pre gaped?
Verified Reply - Solomon
Hi Thomas, happy to help you! This Autolite Iridium Iridium XP Spark Plug (Part # XP3924) has a pre-gap size of .045"-inch. All the spark plugs are pre-gapped from the factory, the fact remains that the gap must be adjusted for the vehicle that the spark plug is intended for. Those with modified engines must remember that a modified engine with higher compression or forced induction will typically require a smaller gap settings.
Are these considered short plugs and what's the length?
Verified Reply - Steve
No, David, this Autolite Iridium Iridium XP Spark Plug (Part # XP3924) is not a short spark plug, it has a thread reach of 0.75"- inches.
How do I get the rebate in the mail? What do I have to do?
Verified Reply - Solomon
Hi Jason, happy to help you! All rebate inquiries are handled by a different department and we do not have access to the rebate information. I suggest you to contact the rebate customer service at 1-888-378-9766 or through email at advanceautoparts@help.4myrebate.com and they would be in a better position to assist you further.
Does this spark plugs ready to install as is
Verified Reply - Steve
Hi Maynard, I'm glad to help you! This Autolite Iridium Iridium XP Spark Plug (Part # XP5224) is ready to install. However, when it comes to repair and maintenance it is always recommended referring the vehicle owner's manual for the exact specifications to get better and safer results.
Hi I just bought XP 5702 Spark plugs and I would like to know if have to gap it to fit my Hyundai 2016 sonata or there is no need to do so… thanks
Verified Reply - Steve
Hi John, I'm glad to help you! This Autolite Iridium Iridium XP Spark Plug (Part # XP5702) is an exact fit for your 2016 Hyundai Sonata. All the spark plugs are pre-gapped from the factory, the fact remains that the gap must be adjusted for the vehicle that the spark plug is intended for.
Displaying Question & Answer 1-5

TOP SELLERS IN THIS CATEGORY

    AAP Flag
    $9.99
    (1586)
    Autolite Iridium
    Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition
    AAP Flag
    $11.99
    (1403)
    NGK
    Iridium IX Spark Plug: Single Iridium Fine Wire, LKR7DIX-11S
    AAP Flag
    $12.99
    (1403)
    NGK
    NGK Iridium IX Spark Plug
    AAP Flag
    $11.99
    (200)
    Champion
    Iridium Spark Plug: Fine-Wire Electrode for Maximum Performance
    AAP Flag
    $11.99
    (1403)
    NGK
    Iridium IX Spark Plug: Single Iridium Fine Wire, LKAR7BIX-11S
    AAP Flag
    $9.79
    (468)
    ACDelco
    Double Platinum Spark Plug: Original Equipment Replacement
    AAP Flag
    $11.99
    (1205)
    ACDelco
    Iridium Spark Plug: Original Equipment Replacement
    AAP Flag
    $10.99
    (1403)
    NGK
    Iridium IX Spark Plug: Single Iridium Fine Wire, LTR5IX-11
    AAP Flag
    $6.49
    (842)
    Autolite
    Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life
    AAP Flag
    $6.79
    (842)
    Autolite
    Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life
Feedback