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 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...

CUSTOMERS ALSO PURCHASED

    AAP Flag
    Loading...
    (127)
    FRAM
    Full Synthetic High Mileage 5W-30 Engine Oil: 5 Quart
    AAP Flag
    Loading...
    (1243)
    Castrol
    GTX High Mileage 5W-30 Synthetic Blend Engine Oil, 5 Quart
    AAP Flag
    Loading...
    (1611)
    Carquest Standard
    Oil Filter: Ideal for Conventional Oil, Protection up to 5,000 Miles
    AAP Flag
    Loading...
    (1328)
    Mobil 1
    5W-30 High Mileage Full Synthetic Motor Oil - Protection for 10K Miles, 5 Quart
    AAP Flag
    Loading...
    (2971)
    Mobil 1
    Advanced Full Synthetic Engine Oil 5W-30, 5 Quart
    AAP Flag
    Loading...
    (453)
    Valvoline
    High Mileage with MaxLife Technology Synthetic Blend 5W-30 Motor Oil: Maximize Engine Life, 5 Quart
    AAP Flag
    Loading...
    (443)
    Castrol
    EDGE High Mileage 5W-30 Advanced Full Synthetic Engine Oil, 5 Quart
    AAP Flag
    Loading...
    (145)
    FRAM
    5W-30 Full Synthetic Motor Oil: 5 Quart
    AAP Flag
    Loading...
    (232)
    Mobil 1
    Extended Performance 5W-30 High Mileage Full Synthetic Motor Oil, 5 Quart
    AAP Flag
    Loading...
    (420)
    Valvoline
    Full Synthetic High Mileage with MaxLife Technology 5W-30 Engine Oil: Maximizes Engine Life, 5 Quart

Product Information

Product Details
Part No. 3924
Warranty Details (2 YR REPLACEMENT IF DEFECTIVE)
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Double Platinum spark plugs feature platinum-to-platinum firing which virtually eliminates gap erosion, reduces misfires and increases durability of the plug. Consider upgrading to Autolite Iridium XP spark plugs for increased performance.

Product Features:
  • Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal (100% leak proof)
  • Multi-rib insulator reduces danger of "flash-over"
  • One-piece terminal post adds strength
  • Resistor reduces radio frequency interference (RFI) and electrode erosion
Specifications
Center Electrode Core Material:
Copper

Center Electrode Tip Material:
Nickel

Electrical Terminal Type:
Stud

Ground Electrode Core Material:
Nickel

Ground Electrode Quantity:
1

Ground Electrode Tip Design:
Tapered

Ground Electrode Tip Material:
Nickel

Hex Size:
5/8" in

Pre-Gap Size:
0.044 in

Reach:
19.5 mm

Resistance:
4000

Resistor Type:
Yes

Seat Type:
Flat

Thread Diameter:
14 mm

YOU MAY ALSO LIKE

    AAP Flag
    Loading...
    (2115)
    Mobil 1
    Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
    AAP Flag
    Loading...
    (347)
    Pennzoil
    Platinum 5W-30 High Mileage Full Synthetic Motor Oil, 5 Quart
    AAP Flag
    Loading...
    (1243)
    Castrol
    GTX 10W-30 High Mileage Synthetic Blend Motor Oil, 5 Quart
    AAP Flag
    Loading...
    (1328)
    Mobil 1
    10W-30 High Mileage Full Synthetic Motor Oil, 5 Quart
    AAP Flag
    Loading...
    (114)
    FRAM
    5 Qt Engine Oil High Milage Conventional 5W30 Restores Seals to Reduce Oil Consumption
    AAP Flag
    Loading...
    (2713)
    NGK
    OE Series V-Power Nickel Spark Plug: V-Groove Tip Design, TR55
    AAP Flag
    Loading...
    (1298)
    K&N
    Premium Oil Filter: Ideal for Synthetic & Conventional Oil, Protects Your Engine
    AAP Flag
    Loading...
    (127)
    FRAM
    Full Synthetic High Mileage 10W-30 Motor Oil: 5 Quart
    AAP Flag
    Loading...
    (1)
    Carquest Premium
    Full-Flow Lube Spin-on
    AAP Flag
    Loading...
    (1123)
    PurolatorBOSS
    Oil Filter: Ideal for Full Synthetic Oil, Protects up to 20,000 miles
4.66 out of 5
830 Customer Reviews
90% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
669
4 Stars
103
3 Stars
24
2 Stars
3
1 Star
31
These work well on a Honda VT1100T ACE Tourer moRecommend highly for Mercury 90 Outboard.69 RS SS Camaro yes I will buy this product again and recomm
Was correct part.NoGreat priceGreat plug for Harley Twin Cam enginesWork great in my jet boat!
Pros
55
Easy To Install
53
Improves Engine Efficiency
44
Durable
38
Increases Power
17
Lightweight
Cons
7
none
2
Difficult To Install
2
None
1
Decreases Gas Mileage
1
Engine misfired
Best Uses
56
Replacement
54
Everyday Driving
18
Restoration
11
Performance Driving
6
Racing
Car & Truck
11
Casual Driver
8
Auto Enthusiast
8
Mechanic
3
Truck Enthusiast
1
Competitive Driver
Describe Yourself
28
Casual Driver
23
Auto Enthusiast
19
Mechanic
9
Truck Enthusiast
4
Competitive Driver
Most Liked Positive Review
Best plug for your Neon
These plugs do the job for stock or performance. Somebody gave them a bad rating because they 'only' lasted 40,000 miles. You are supposed to change them at 30,000 miles so that is actually a positive review. Change the stars to 5. You can't beat them for a street driven Neon.
Most Liked Negative Review
does not match NGK CPR7EA-9
This does not match the NGK CPR7EA-9 Spark plug. The tip is extended on the NGK. This Autolite has a recessed tip. Thus not getting the spark into the cylinder head as designed by the manufacture. Was being used on a Kawasaki Valcan 900.
Loading...
Loading...
Loading...
Loading...
Loading...
Displaying Reviews 1 - 5Back to Top

FREQUENTLY BOUGHT TOGETHER

    AAP Flag
    Loading...
    (94)
    Carquest Premium
    Spark Plug Wire Set
    AAP Flag
    Loading...
    (1656)
    Autolite
    Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration
    AAP Flag
    Loading...
    (75)
    Carquest Premium
    3/8" Inlet - 16X1.5mm Outlet Metal In-Line Fuel Filter
    AAP Flag
    Loading...
    (2618)
    Carquest Premium
    Engine Air Filter: Removes up to 99% of Dirt & Debris
    AAP Flag
    Loading...
    (287)
    Carquest Standard
    Engine Air Filter: Meets Original Equipment Specifications
    AAP Flag
    Loading...
    (10)
    Valvoline
    Extended Protection High Mileage Full Synthetic 5W-30 Engine Oil: Maximizes Engine Life, 5 Quart
    AAP Flag
    Loading...
    (88)
    FRAM
    Extended Life All Vehicles Antifreeze 50/50 Ready-to Use, 1 Gallon
    AAP Flag
    Loading...
    (2115)
    Mobil 1
    Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
    AAP Flag
    Loading...
    (4078)
    Rain-X Latitude
    Wiper Blade: 22", Water Repellency 2-in-1 Premium Beam, Pack of 1
    AAP Flag
    Loading...
    (4078)
    Rain-X Latitude
    Wiper Blade: 24", Water Repellency 2-in-1 Premium Beam, Pack of 1
Thanks ill give the 24's a shot
Verified Reply - Steve
HI William L, I'm glad to help you! If you've any automotive related inquiries regarding product fitments, specifications, diagnosis and repairs, please provide us and we will gladly assist you with any questions or concerns you may have.
Hi in replying to your request of my chevy's model is a Silverado 7.4L 4x4
Verified Reply - Steve
Hi William L, I'm glad to help you! This Autolite Copper Non-Resistor Spark Plug (Part # 255 BX) does not fit your 1987 Chevrolet Dump Truck with 7.4L engine. We do have an exact spark plug available online for your vehicle and the part number is CR43TS. Please enter your vehicle on our website and search for this part to check the fitment.
Hi in answering your request i have a 87 chevy 7.4L TBI Silverado with headers
Verified Reply - Solomon
No William, this Autolite Copper Non-Resistor Spark Plug (Part # 255 BX) does not fit your 1987 Chevrolet Silverado 7.4L. We do have an exact spark plug available online for your vehicle and the part number is 24. Please enter your vehicle on our website and search for this part to check the fitment.
Hello sorry my question should have been will your 255 spark plugs fit my 87 chevy headered Custom Deluxe 454 TBI 1ton dump truck
Verified Reply - Solomon
Hi William, happy to help you! To check the exact fit application for the part number 255 BX, please provide us with the exact sub-model and engine size of your vehicle.
Do these 255's fit my 87 chevy 454 headered engine
Verified Reply - John the Car-Doc
Hi William L! To check compatibility, please provide your 1987 Chevrolet's model, so I can assist you further.
Displaying Question & Answer 1-5

TOP SELLERS IN THIS CATEGORY

    AAP Flag
    Loading...
    (2115)
    Mobil 1
    Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
    AAP Flag
    Loading...
    (2115)
    Mobil 1
    Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
    AAP Flag
    Loading...
    (1298)
    K&N
    Premium Oil Filter: Ideal for Synthetic & Conventional Oil, Protects Your Engine
    AAP Flag
    Loading...
    (2115)
    Mobil 1
    Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
    AAP Flag
    Loading...
    (2115)
    Mobil 1
    Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
    AAP Flag
    Loading...
    (2115)
    Mobil 1
    Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
    AAP Flag
    Loading...
    (162)
    FRAM Force
    Spin-on Oil Filter: Ideal For Any Type of Oil Protection to 15,000 miles
    AAP Flag
    Loading...
    (2115)
    Mobil 1
    Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
    AAP Flag
    Loading...
    (2115)
    Mobil 1
    Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
    AAP Flag
    Loading...
    (2115)
    Mobil 1
    Oil Filter: Ideal for Synthetic Oil, Protection To 20,000 Miles
Feedback