Brand: Pertronix

Ignitor II Pertronix for Lucas 4 Cylinder Engine

Pertronix 9LU-243 Ignitor II is for Lucas 4 cylinder engines.

$239.52 USD

Currently out of stock

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Delivery by Nov 20

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Product Overview

Ignitor II Pertronix for Lucas 4 Cylinder Engine

Ignitor II Pertronix for Lucas 4 Cylinder Engine

Ignitor Electronic Ignition Conversion Kits have proven themselves in applications ranging from tractors to race cars.

It is the number one Electronic Ignition Conversion Kit to replace original mechanical points.

A Pertronix Points Conversion kit allows you to run a stock distributor while improving the reliability and performance of your ignition system.

The Pertronix Ignitor kits simply bolt to the distributor in place of the points assembly and provide a much more accurate trigger signal.

This prevents ‘points bounce’ at higher rpm and improves the timing accuracy.

The electronic technology also enhances the dwell control to improve the spark output of the coil resulting in a hotter spark at the spark plug.

With this dependable, self-contained, maintenance free electronic ignition system, you'll never replace your points again.

Key Features

Develops on average 4 times more available energy between 3000 and 5000 RPM and 2 times more available plug voltage when used with Pertronix Flame-Thrower Coils
Adaptive dwell maintains peak energy throughout the entire RPM range, reducing misfires
Synchronized peak current and spark timing reduces heat build-up and compensates for inherent electronic delay by adjusting the spark timing throughout the entire RPM range
Senses startup and develops more energy for quicker and easier starting
Pair with Pertronix Flame-Thrower Canister Coils 45001, 45011, 45111 for optimal performance

Specifications

Technical Specifications
Length
6.13 in
Width
4.75 in
Height
1.5 in
Weight
0.25 lb
Product & Shipping Details
Condition
New
UPC
694342538231
Ships From
United States
Brand
Pertronix

Customer reviews

Why customers shop with us

7 verified reviews on Trustpilot

Excellent customer service

“Excellent customer service. Had a small order issue that was remedied quickly with great communication!”

Paul Rogers Oct 1, 2026
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“This business communicates very well and delivers on their promise. I would work with them again”

William McKenney Oct 13, 2026
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Receive my 18*8-wheel super quick

“Receive my 18*8-wheel super quick, definitely I'll buy again.”

Suha luna Oct 26, 2026
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Amazing customer service

“My order was filled promptly and arrived as promised. …”

thealos ballas Oct 20, 2026
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“The customer representative was helpful in getting the correct parts ordered, and explained what was included and how to …”

Kamrun Naher Oct 15, 2026
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“Hello, I received my order today and matched as listed. it's super condition so quick …”

Kaynat Seher Oct 7, 2026
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Great customer service!

“Great customer service!”

Verified customer Oct 27, 2026
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FAQ

Frequently Asked Questions

About Ignitor II Pertronix for Lucas 4 Cylinder Engine

01 What is the part number for the Ignitor II?

The part number for the Ignitor II is 9LU-243.

02 What type of engine is the Ignitor II designed for?

The Ignitor II is designed for Lucas 4 cylinder engines.

03 What does the Ignitor kit replace?

The Ignitor kit replaces original mechanical points.

04 What is the UPC / barcode for this product?

The UPC/barcode for this product is 694342538231.

05 Where does this ship from?

Orders ship within the USA directly from our authorized U.S. distributor and brand warehouses.

06 How many days will it take to arrive?

Orders ship within 1-2 business days and typically arrive within 4-5 business days via free standard shipping -- usually by Nov 20.

07 Does this product accept returns?

Yes -- this item can be returned within 15 days of delivery for a free return by mail. See our return policy for full details.

Ignitor II Pertronix for Lucas 4 Cylinder Engine

Special Offer

Ignitor II Pertronix for Lucas 4 Cylinder Engine

Get 5% off this item today — code TRY5 at checkout.

$239.52

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