Product Summary

6.00" Overall Height, 2.25" Outside Diameter, Steel

  • Features a smooth chrome finish
  • For use with 12 volt inductive ignition systems
  • Puts out 40,000 volts and has a 1.5 Ohm primary resistance
  • Coils are internally resisted so they are compatible with many inductive ignition systems
  • Its higher voltage allows larger spark plug gaps for added power, smoother response and better fuel economy
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Key Specs

D-57-21
MFG. Part #40001
BrandPerTronix
Maximum Voltage40,000 volts
Material TypeSteel
CARB EO#
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PerTronix 40001 Details

The hotter the spark, the easier your engine will start, and this 40,000 volt coil is just the ticket to a quick start! Its higher voltage allows larger spark plug gaps for added power, smoother response and better fuel economy. These coils are internally resisted so they are compatible with many inductive ignition systems.  

  • Smooth chrome finish 
  • 40,000 volts
  • For use with 12 volt inductive ignition systems.
  • 1.5 Ohm primary resistance
  • Legal in all 50 states and Canada

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Warranty Information

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Speedway Motors cannot facilitate the return of defective PerTronix products as they have requested to handle these directly with the consumer. Purchasers of a product who wish to make a warranty claim based upon an alleged product defect should email the

PerTronix 40001 Specifications

D-57-21
KEY SPECS
MFG. Part #40001
BrandPerTronix
Maximum Voltage40,000 volts
Material TypeSteel
CARB EO#
GENERAL
Overall Height6.00"
Outside Diameter2.25"
Cap TypeSocket / Female
Cap Terminal StyleSocket / Female
Turns Ratio115:1
Voltage12 volts
Resistance1.5 ohms
Secondary Resistance10.60 ohms
Inductance6.40
Peak Current7.2
Spark Duration1.5
FinishChrome
GTIN Code694342004859
Sold in QuantityEach

Ratings & Reviews

4.9

37 Reviews

Overall Assessment

Customers have praised the product’s top-quality, efficiency, and aesthetics. Users commend its effectiveness, stating that it precisely fits their needs, enhances spark distribution, improves engine performance, and simplifies ignition systems. The product also receives commendation for its great value. Despite a report of poor quality plating, users consistently recommend the product and have bought it multiple times. Users highlighted its easy installation and compatibility with different vehicles. Overall, customers love its performance boost, reliability, and quality.

4.9

37 reviews

5

36

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Most Liked Positive Review

5.0

Flame-thrower coil by Pertronix

I replaced my old ign/system with a Pertronix no contact system with a flame-thrower coil in my 50 Merc V8 flathead. The flathead runs better, startes better than it ever has before. A great up date to the flathead with no problems.

Most Liked Negative Review

1.0

Poor chome

plating on coil was very poor quality !

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Bling and added power!

5.0

a year ago

BigDumbAnimal

Oklahoma

Verified

Added this Flame-Thrower Coil along with the Pertronix electronic ignition to make my 1950 F-1 more reliable. The difference is amazing. It also added some bling that went well with the new air filter, breather, aluminum heads, radiator hose dress up kit.

Would Recommend

Product performs just as described.

5.0

a year ago

Hawkeye

Callands. Va.

Verified

The coil was used in conjunction with the distributor that was replaced on a 1937 Ford flathead v8,and works great Thank you for being so helpful .

Would Recommend

Great price, quick shipping

5.0

2 years ago

Tim H

Sacramento, CA

Verified

it works, why wouldn't I love it

Would Recommend

yes

5.0

2 years ago

Ron ;s

Honolulu hi.

Verified

just what my flathead needed

Would Recommend

I will buy again

5.0

3 years ago

HotRod

Ohio

Verified

On a flathead

Would Recommend

Looks great

5.0

3 years ago

51 flathead

Canada

Verified

Looks great

Would Recommend

Looks good and works as described

5.0

4 years ago

Rusty

North Carolina

Verified

Looks good on my Flathead

Would Recommend

I would definitely buy again.

5.0

4 years ago

Abombtim

Berkley ma

Verified

Plenty of spark, works great.

Would Recommend

works great

5.0

5 years ago

paul

san Antonio

Verified

works perfect

Great product

5.0

5 years ago

Bob

Denton Valley, TX

Verified

Works great and you can eliminate the resistor.

Would Recommend

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