SAVE 15% OFF ANY ORDER | 20% OFF $100+ | ONLINE ONLY
USE CODE
MARCH
*
Exclusions apply.
✕
Advance Auto Parts Logo
Choose a Store
Product thumb
Product thumb
Product thumb
Product main large
Add A Vehicle to Check Fitment
How Would You Like To Get This Item?

Store Pickup

FREE
No Store Selected

Same Day Home Delivery

No Store Selected

Home Delivery

FREE for orders over $35

Standard Delivery Available

Curbside pickup is available at most stores
Loading...

CUSTOMERS ALSO VIEWED

    Window Regulator: Power, 1 Pack
    $268.99
    (0)
    Dorman Window Regulator: Power, 1 Pack
    Tie Rod End
    $93.99
    (0)
    MOOG Tie Rod End
    Alternator: Remanufactured, 110 Amps
    $251.99
    (0)
    Carquest Premium Alternator: Remanufactured, 110 Amps
    Brake Hardware Kit with Quiet Clip
    $6.65
    (0)
    Carquest Wearever Brake Hardware Kit with Quiet Clip
    Power Steering Pump O-Ring Kit
    $14.99
    (2)
    Dorman Power Steering Pump O-Ring Kit
    New Power Steering Pump
    $171.99
    (4)
    Carquest Premium New Power Steering Pump
    Remanufactured Power Steering Pump
    $103.99
    (33)
    Cardone Remanufactured Power Steering Pump
    R and P Bellow Kit
    $19.29
    (0)
    Carquest Premium R and P Bellow Kit
    Power Steering Pump Pulley
    $29.99
    (30)
    Dorman Power Steering Pump Pulley
    Power Steering Cooler
    $114.99
    (28)
    Dorman Power Steering Cooler

Product Information

Product Details
Part No. AP104
Warranty Details (4 YR REPLACEMENT IF DEFECTIVE)
Autolite Platinum spark plugs are engineered with a platinum center electrode firing tip that provides improved performance and increased durability, making it a reliable choice for all older engine applications and designs. Its platinum design delivers quicker firing, smoother starts, for better acceleration, and improved fuel efficiency.

Product Features:
  • Engineered with a platinum firing tip that prevents gap erosion for longer service life.
  • Its high alumina ceramic insulator provides thermal conductivity and superior insulation for increased strength.
  • The multi-rib insulator prevents flash-over.
  • Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended life.
Specifications
Center Electrode Core Material:
Copper

Center Electrode Design:
Standard

Center Electrode Projection:
Mid Projection

Center Electrode Tip Material:
Platinum

Electrical Terminal Type:
Non-Removable Nut

Electrode Tip Material:
Platinum

Ground Electrode Core Material:
Nickel

Ground Electrode Quantity:
1

Ground Electrode Tip Design:
Standard

Ground Electrode Tip Material:
Nickel

Hex Size:
5/8 in

Hex Type:
Hex

Indexed:
No

Insulator Material:
Ceramic

Manufacturer Heat Range:
9

Pre-Gap Size:
0.05 in

Reach:
0.679 in

Resistor:
Suppressor

Resistor Type:
Yes

Seat Type:
Tapered

Skirt:
Yes

Thread Diameter:
14 mm

Tip Configuration:
Power

Washer Included:
No

Wrench Diameter:
5/8 in

TOP SELLERS

    2-In-1 All Season Windshield Washer Fluid: Improved Water Beading, 1 Gallon
    $6.99
    (1256)
    Rain-X 2-In-1 All Season Windshield Washer Fluid: Improved Water Beading, 1 Gallon
    Motor Treatment; Fuel and Oil Additive, for all Gas and Diesel Engines, 16 oz.
    $9.99
    (3969)
    Sea Foam Motor Treatment; Fuel and Oil Additive, for all Gas and Diesel Engines, 16 oz.
    Brake Parts Cleaner, Non-Chlorinated, High VOC, 14 oz.
    $5.49
    (1441)
    Carquest Brake Cleaner Brake Parts Cleaner, Non-Chlorinated, High VOC, 14 oz.
    Upper Cylinder Lube/Fuel Treatment, 5.25 oz.
    $6.99
    (659)
    Lucas Oil Products Upper Cylinder Lube/Fuel Treatment, 5.25 oz.
    Shop Towels: 9.4" x 11" Sheets, 55 Sheets a Roll, 1 Pack
    $4.99
    (1020)
    Scott Brand Shop Towels: 9.4" x 11" Sheets, 55 Sheets a Roll, 1 Pack
    Brake Parts Cleaner, Chlorinated, Non-Flammable, 19 oz.
    $5.49
    (262)
    Carquest Brake Cleaner Brake Parts Cleaner, Chlorinated, Non-Flammable, 19 oz.
    Battery Accessories: Terminal Protectors & Grease, Helps Extend Battery Life
    $3.99
    (690)
    DieHard Battery Accessories: Terminal Protectors & Grease, Helps Extend Battery Life
    RhinoRamp, 12,000 lbs Weight Capacity
    $59.99
    (388)
    Rhino Gear RhinoRamp, 12,000 lbs Weight Capacity
    Bug Remover 32 Degree Windshield Washer Fluid, 1 Gallon
    $5.99
    (891)
    Rain-X Bug Remover 32 Degree Windshield Washer Fluid, 1 Gallon
    DOT 3 Brake Fluid: Synthetic Formulation, For ABS, Disc, And Drum Brake Systems, 32 oz.
    $7.99
    (1201)
    Carquest Wearever DOT 3 Brake Fluid: Synthetic Formulation, For ABS, Disc, And Drum Brake Systems, 32 oz.
4.69 out of 5
1656 Customer Reviews
87% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
1364
4 Stars
188
3 Stars
36
2 Stars
19
1 Star
49
Great plugsSolid spark plugsAffordable Spark Plug
I would never buy this product againGood product!  Good service too!Yes will buy again . PerfectDo not use in a jeep 4.0 wranglergreat performance
Pros
83
Improves Engine Efficiency
67
Easy To Install
52
Increases Power
49
Durable
14
Lightweight
Cons
10
No Improvement In Performance
4
Decreases Gas Mileage
4
none
2
None
1
Difficult To Install
Best Uses
85
Everyday Driving
62
Replacement
19
Performance Driving
15
Restoration
5
Racing
Car & Truck
8
Casual Driver
6
Auto Enthusiast
4
Truck Enthusiast
3
Mechanic
1
Jeeper
Describe Yourself
41
Auto Enthusiast
40
Casual Driver
34
Mechanic
15
Truck Enthusiast
4
Competitive Driver
Most Liked Positive Review
great performance
I used these plugs before and have installed them in every truck I have bought. I have noticed increased fuel mileage and increased performance right from the start and they last for more than 50 thousand miles at a time. I average over thirty thousand miles a year on my truck and have gone a couple years between replacement with out any problems or plug failure or drop in performance. I would recommend these plugs to any one who want a good plug with out breaking the bank and want's to to protect their motor.
Most Liked Negative Review
Autolite plugs
Still testing,but runs cooler.
Loading...
Loading...
Loading...
Loading...
Loading...
Displaying Reviews 1 - 5Back to Top

CUSTOMERS ALSO LIKED

    Extended Life All Vehicles Antifreeze 50/50 Ready-to Use, 1 Gallon
    $10.99
    (92)
    FRAM Extended Life All Vehicles Antifreeze 50/50 Ready-to Use, 1 Gallon
    5W-30 High Mileage Full Synthetic Motor Oil - Protection for 10K Miles, 5 Quart
    $33.99
    (1333)
    Mobil 1 5W-30 High Mileage Full Synthetic Motor Oil - Protection for 10K Miles, 5 Quart
    Extended Performance 5W-20 High Mileage Full Synthetic Motor Oil, 5 Quart
    $36.99
    (232)
    Mobil 1 Extended Performance 5W-20 High Mileage Full Synthetic Motor Oil, 5 Quart
    Advanced Full Synthetic Engine Oil 5W-30, 5 Quart
    $32.99
    (2976)
    Mobil 1 Advanced Full Synthetic Engine Oil 5W-30, 5 Quart
    Full Synthetic High Mileage 5W-30 Engine Oil: 5 Quart
    $28.99
    (129)
    FRAM Full Synthetic High Mileage 5W-30 Engine Oil: 5 Quart
    Antifreeze and Coolant: 50/50 Ready To Use, Universal, Protects Against Corrosion, 1 Gallon
    $14.99
    (886)
    Prestone Antifreeze and Coolant: 50/50 Ready To Use, Universal, Protects Against Corrosion, 1 Gallon
    Extended Performance 5W-30 High Mileage Full Synthetic Motor Oil, 5 Quart
    $36.99
    (232)
    Mobil 1 Extended Performance 5W-30 High Mileage Full Synthetic Motor Oil, 5 Quart
    Extended Performance 5W-30 Full Synthetic Motor Oil, 5 Quart
    $36.99
    (2976)
    Mobil 1 Extended Performance 5W-30 Full Synthetic Motor Oil, 5 Quart
    Full Synthetic High Mileage 5W-20 Motor Oil: 5 Quart
    $28.99
    (129)
    FRAM Full Synthetic High Mileage 5W-20 Motor Oil: 5 Quart
    Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
    $15.49
    (2121)
    Mobil 1 Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
Are there plugs a good replacement for denso PKH16TT for my 2007 Nissan Frontier SE 6 cyclinder engine
Verified Reply - Steve
Hi Tommy, I'm glad to help you! This Autolite Single Platinum Spark Plug (Part # AP5325) is an exact fit for your 2007 Nissan Frontier SE.
Do I need to use anti seize?
Verified Reply - John the Car-Doc
Hi Shri, I'm glad to assist you! Autolite always recommending to consult the service manual for the vehicle being repaired and using anti-seize only where the original manufacturer recommends it. The nickel coating on this Autolite Single Platinum Spark Plug - Part # AP3924 provided added protection from seizing in aluminum cylinder heads and has made anti-seize less important in spark plug installations. Anti-Seize can alter the tightening torque up to 20%, increasing the risk of breakage. It can also create heat transfer and electrical conductivity concerns.
Is this plug comparable for 93 cadi Seville 4.6 Northstar engine? Noticed the preset gap is . 60 and the gap rating is . 50 for Seville sts, can I reduce the preset gap down to the . 50 rated gap and what do I need to reduce it if it's ok?
Verified Reply - Solomon
No Tony, this Autolite Single Platinum Spark Plug (Part # AP605) does not fit your 1993 Cadillac Seville. We do have an exact spark plug available online for your vehicle and the part number is 3951 and it has a gap size of 1.5mm. Use your spark plug gap tool to adjust the gap. Gently bend the ground electrode in to narrow the gap or bend it out to widen it. Be very careful when making adjustments. Don't bend the electrode more than a few fractions of an inch.
What socket fits this plug?
Verified Reply - Solomon
Hi Misha, happy to help you! Since you didn't mention the specific vehicle, it's hard to tell for sure. To give you the correct information I would need the year, make, model and engine size of the vehicle.
Does this fit an 2008 fx35
Verified Reply - John the Car-Doc
Yes, Shahyem! This Autolite Single Platinum Spark Plug - Part # AP5325 is an exact fit for your 2008 Infiniti FX35.
Displaying Question & Answer 1-5

TOP SELLERS IN THIS CATEGORY

    Remanufactured Rack and Pinion Assembly
    $261.99
    (35)
    Cardone Remanufactured Rack and Pinion Assembly
    Remanufactured Rack and Pinion Assembly
    $338.99
    (25)
    Cardone Remanufactured Rack and Pinion Assembly
    Remanufactured Rack and Pinion Assembly
    $731.99
    (0)
    Cardone Remanufactured Rack and Pinion Assembly
    Remanufactured Rack and Pinion Assembly
    $385.99
    (22)
    Cardone Remanufactured Rack and Pinion Assembly
    Remanufactured Rack and Pinion Assembly
    $189.99
    (13)
    Cardone Remanufactured Rack and Pinion Assembly
    Remanufactured Rack and Pinion Assembly
    $279.99
    (5)
    Cardone Remanufactured Rack and Pinion Assembly
    Remanufactured Rack and Pinion Assembly
    $511.99
    (3)
    Cardone Remanufactured Rack and Pinion Assembly
    Remanufactured Rack and Pinion Assembly
    $289.99
    (5)
    Cardone Remanufactured Rack and Pinion Assembly
    Remanufactured Rack and Pinion Assembly
    $272.99
    (0)
    Cardone Remanufactured Rack and Pinion Assembly
    Electric Rack & Pinion Assembly: New, OE Fix, With Calibration Tool
    $999.99
    (1)
    Dorman Electric Rack & Pinion Assembly: New, OE Fix, With Calibration Tool
Feedback