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Product Information
Product Details
Part No. AR3923
Warranty Details (2 YR REPLACEMENT IF DEFECTIVE)
Autolite Racing spark plugs are engineered with a cut-back ground electrode, anti-corrosive nickel plating, and large ground electrode that deliver better heat transfer, ensuring maximum engine performance on the track.
Product Features:
Product Features:
- Engineered with a cut-back ground electrode that delivers optimal ignitability of the flame kernel and better heat transfer, leading to quicker starts.
- The yttrium-enhanced alloy enables up to 8% reduction in ground wire temperature for colder heat ranges designed to enable performance modifications and handle intense conditions.
- Designed with an anti-corrosive nickel-plating prevents rusting better than black oxide, allowing the plug to maintain its durability and efficiency.
- Its high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength while preventing flash-over.
Specifications
Center Electrode Core Material:
Copper
Center Electrode Design:
Standard
Center Electrode Projection:
Mid Projection
Center Electrode Tip Material:
Nickel
Electrical Terminal Type:
Non-Removable Nut
Electrode Tip Material:
Resistor
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:
10
Pre-Gap Size:
0.044 in
Reach:
0.75 in
Resistor:
Suppressor
Resistor Type:
Yes
Seat Type:
Flat
Skirt:
Yes
Thread Diameter:
14 mm
Tip Configuration:
Power
Washer Included:
Yes
Wrench Diameter:
5/8 in
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28 Customer Reviews
100% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
23
4 Stars
4
3 Stars
1
2 Stars
0
1 Star
0
Pros
2
Easy To Install
1
Durable
Cons
No Cons
Best Uses
1
Performance Driving
1
Racing
1
Replacement
Describe Yourself
1
Casual Driver
1
Competitive Driver
1
Mechanic
Most Liked Positive Review
Best spark plug
PLACEMENT PART FOR TUNE UP
Most Liked Negative Review
see comments
I was sent 6 of these plugs, and 2 Bosch Spark plugs. I don't know why this happened, but I ordered 8 Autolites, and should have received 8 of them, not 6 and then 2 random Spark plugs that I didn't want. Shipping dept screwed this up.
Displaying Reviews 1 - 5Back to Top
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can this item be transfer to anthens ,tn store
Verified Reply - John the Car-Doc
Hi Wendell! We do handle only technical questions regarding product fitments, specifications, diagnosis, and repairs. For in-store shipment-related inquiries, please call us at 1-877-ADVANCE (238-2623) and press option 3 so that you could speak to our store customer care and they will be in a better position to assist you.
will these work on a Subaru Forester 2019 model base? 2.5 engine
Verified Reply - John the Car-Doc
Hi James, I'm glad to assist you! This Autolite High Performance Racing Resistor Spark Plug - Part # AR3924 is universal and is not application specific. You would have to match one by size to what is on your 2019 Subaru Forester 2.5L that can be fabricated into its place. The exact fit spark plug for your vehicle is unavailable online. I'd recommend that you visit the nearest Advance Auto Parts store to check the availability of the product.
Will this work in a 92 Mustang GT
Verified Reply - Steve
No, Dennis. This Autolite Racing Resistor Spark Plug - Part # AR25 does not fit your 1992 Ford Mustang GT. However, we do offer an exact fit Autolite Copper Resistor Spark Plug - Part # 25 for your vehicle online.
How much do these affect gas mileage?
Verified Reply - Steve
Hi, I'm glad to assist you! This Autolite High Performance Racing Resistor Spark Plug - Part # AR3924 has copper electrode core material. Autolite has been rated the service life of the copper core about 32K miles.
Part No. AR3924 Autolite High Performance Racin If I can use it for a 2009 Nissan Murano
Verified Reply - Steve
Hi Jose, I'm glad to assist you! This Autolite High Performance Racing Resistor Spark Plug - Part # AR3924 is universal and is not application specific. You would have to match one by size to what is on the vehicle that can be fabricated into its place.
Displaying Question & Answer 1-5
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