MSD 82738 Ignition Coil Red - Reliable Direct Replacement

Our review of the MSD 82738 Ignition Coil Red finds it best suited for Jeep owners and mechanics who need a straightforward, dependable replacement for the late model 4.0L coil pack. The bottom line: it is a direct bolt-in replacement that restores ignition performance with improved internal windings, so drivers see crisper combustion and fewer misfires without modifying the factory mounting or connectors. Installation is simple and the unit meets or exceeds Original Equipment specifications, making it a practical upgrade from a worn stock coil.

Key Features

• Direct bolt-in replacement: Mounts in the factory location and plugs into the factory connector for a quick, hassle-free swap that saves time in the garage.
• Improved internal windings: Designed with enhanced windings and materials to increase coil output and support stronger spark under load.
• Late model Jeep fit: Built specifically as a replacement for the 4.0L Jeep coil pack and compatible with the listed Chrysler Jeep part numbers.
• Durable construction: Meets or exceeds Original Equipment specifications to provide reliable operation over normal service life.
• One-year limited warranty: Includes a limited 1-Year Warranty from the date of purchase for basic buyer protection against early failures.

Who It's For

The MSD 82738 is for Jeep owners with the 4.0L engine who need a direct replacement or a modest performance-minded upgrade from stock. It is particularly useful for drivers who are experiencing misfire symptoms, rough idle, or reduced fuel efficiency and want a component that installs without wiring changes.

It is not aimed at high-end race engines or customers seeking a complete aftermarket ignition system; those users should consider a full performance ignition kit. Also, if a vehicle uses a different coil configuration or engine family, confirm fitment against the Chrysler Jeep PN references before purchasing.

Pros & Cons

Pros

• Direct bolt-in fit simplifies installation and reduces labor time.
• Improved windings deliver a stronger spark and help recover at high rpm.
• Customers report improved driveability, smoother idle, and resolved misfires.

Cons

• Limited 1-Year Warranty is shorter than some extended aftermarket warranties.
• Not a complete ignition system upgrade for heavy race or track use.

Specifications

Our Verdict

The MSD 82738 Ignition Coil Red is a practical, value-minded replacement for 4.0L Jeep owners who want improved ignition output without modifications. It restores misfire-prone vehicles to smoother idle and better driveability, installs in the factory location, and carries a one-year limited warranty, making it a sensible choice for daily-driven Jeeps and basic performance refreshes.

Frequently Asked Questions

Will this coil fit my 4.0L Jeep?
It is designed as a direct replacement for late model 4.0L Jeep coil packs and references Chrysler Jeep PNs 56041476AB and 56041476AA; verify those numbers against your vehicle.

Does it require any wiring changes?
No, the unit mounts in the factory location and plugs into the factory connector for a plug-and-play installation.

What kind of warranty does it have?
The product includes a limited 1-Year Warranty from the date of purchase for coverage against early defects.