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E3 DiamondFire Spark Plug (E3.46): Enhanced Power & Fuel Efficiency
5 year warranty
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Product Information
Product Details
Part No. E3.46
Warranty Details (5 Year Warranty)
The Spark Plugs are the product of years of fundamental research in the combustion field. The unique patented electrode configuration of these new The spark plugs increases the amount of combustion pressure created during each power stroke of an engine, which results in a marked increase in power output, fuel economy, and reduced emissions in all gasoline engines. E3.46 is a 14mm, 0.750 reach plug with a gasket seat. It fits a wide variety of applications from the 60s to early 90s, especially import. E3.46 is widely stocked in automotive retail stores. The automotive plugs have three legs securing the Diamond FIRE electrode to the shell. This allows for excellent heat transfer, and helps to create more turbulence in the cylinder. The patented Diamond FIRE side wire is proven to increase power, reduce fuel consumption and improve hydrocarbon emissions in long-term use.
Product Features:
Product Features:
- E3's Diamond Fire edge to edge ground electrode provides maximum performance with increased efficiency and a faster more complete burn.
- Smoother Acceleration & Idle - The faster flame initiated by the spark plug results in a more complete burn of the ingested fuel charge. More pressure is created against the piston more fuel is put to work
- Energy - Power output improved up to 6% on average in the typical operating ranges. Results will vary.
- Efficiency - The "diamond shaped" side wire electrode projects the combustion spark in a way that more quickly ignites the air/fuel mixture, thereby creating a significantly faster and larger flame kernel. The result is that more fuel is put to work durin
- E3's patented Diamond Fire Technology provides a cleaner burning combustion, which translates into fuel savings and reduced engine carbon deposits
- The Spark Plugs are pre-gapped at the factory and cannot be adjusted.
- Wide Compatibility: The E3.46 spark plugs are 14mm with a 0.750 reach and a gasket seat, making them suitable for a wide range of applications from the 1960s to early 1990s, especially for import vehicles.
- Widely Available: The E3.46 spark plugs are widely stocked in automotive retail stores, ensuring easy availability for consumers.
Specifications
Center Electrode Core Material:
Copper
Center Electrode Tip Material:
Nickel
Electrode Core Material:
Copper
Electrode Tip Material:
Nickle
Gap:
Pre-gapped at the factory to meet O.E. requirements; Gap cannot be adjusted
Ground Electrode Tip Material:
Nickel
Hex Size:
13/16 in
Insulator Height:
56.79 mm
Insulator Type:
Ceramic
Pre-Gap Size:
1.016 mm
Reach:
19.05 mm
Resistor:
Resistor
Seat Style:
Gasket
Seat Type:
Gasket
Shorty Spark Plug:
No
Thread Diameter:
14 mm
Tip Configuration:
Nickle
Wrench Diameter:
0.813 in
4.24 out of 5
1038 Customer Reviews
62% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
731
4 Stars
116
3 Stars
32
2 Stars
22
1 Star
137
Pros
149
Easy To Install
133
Improves Engine Efficiency
129
Increases Power
70
Durable
34
Lightweight
Cons
69
No Improvement In Performance
46
Decreases Gas Mileage
5
Difficult To Install
5
none
4
Pricey / Poor Value
Best Uses
144
Everyday Driving
109
Replacement
73
Performance Driving
29
Racing
27
Restoration
Car & Truck
51
Casual Driver
42
Auto Enthusiast
38
Mechanic
30
Truck Enthusiast
11
Competitive Driver
Describe Yourself
90
Auto Enthusiast
66
Casual Driver
54
Mechanic
48
Truck Enthusiast
18
Competitive Driver
Most Liked Positive Review
Wow Whee!
I replaced the plugs in my 2001 PT Cruiser and darn near doubled my gas mileage. The engine immediately idled and ran smoother. The gas pedal is more responsive, and everything seems to run better, and cooler, believe it or not. I am quite impressed with these plugs. Although their a bit more pricey, the investment is worth every penny. I will never use any other type of spark plug, I'm sold!
Most Liked Negative Review
GARBAGE! DO NOT BUY!
Bought these in September and by March with less than 3000 miles on them 2 were misfiring and 1 of those 2 was completely melted through. I mean torched not even just burned out, torched. I am lucky these plugs didn't cause any major damage to my engine, that I know of yet (knock on wood). Long story short I will never buy these again and will tell everyone I can not to buy this product or any E3 product. Thankfully Advance returned them as defective.
Reviewed by 1038 Customers
Honda Insight - may not work
Staff Reviewer -
These plugs didn't look well manufactured in general. More importantly they DID NOT WORK on my Honda Insight. Apparently the lean combustion cycle requires fairly accurate placement and circulation around the spark, so stick with the OEM and check your old plugs for the letter on top of each. You can find an explanation on [@].
Great plugs! My 1973 mustang starts quic
I put these plugs in two of my 40 year old mustangs and they perform great! check them out on you tube and see for your self.Use at least 8mm wires with these plugs.also put anti-seize on the threads and use dielectric grease on wire boots and you should be all set.
Bottom Line Yes, I would recommend to a friend
Things to consider.......
Great performance, and great fuel economy boost with these plugs. You also have greater resistance to cylinder carbon build up with these plugs. The down side: These plugs won't last more than 15k miles when used for towing/hauling duties.
Bottom Line No, I would not recommend to a friend
TV to much glamor,not enough proof !
Staff Reviewer -
did not last 9000 miles.one E-3 spark plug went sour,fowled up computer!wow did it...DEALER expence,many$$$$,not covered under waranty,more$$$$ to fix. Would not recomend to any person!!
Bottom Line No, I would not recommend to a friend
E3 Spark Plugs DO NOT BUY!
Staff Reviewer -
I Bought and installed E3 Spark plugs in my 2.0 1996 Neon just over 2 years ago and about 30K miles ago. This Car is My commuter car and sees about 60 miles per day highway use. After a series of recent misfires and rough running, low power & bad MPG I pulled the the plugs for a visual inspection. The color was good But the electrodes on all 4 plugs were badly worn - rounded and visually different from each other. Even the diamond tang was worn down and rounded unevenly. I saw these advertised on "Two Guys Garage" and thought it was a neet concept. I purchased and installed them never to really be impressed. Now with only 30K on them I am really not impressed! These E3 Spark Plugs are JUNK! Do not purchase them! They are only a dissapointment in function, longevity and value. I purchased a set of NGK plugs today at my local Advance Auto Parts and my Neon is running smooth again.
Bottom Line No, I would not recommend to a friend
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