Description
The Mishimoto MMIG-LSSQ-9908 is a set of eight coil-on-plug (COP) ignition coils engineered as a direct, specific-fit replacement for GM LS-series truck engines built between 1999 and 2007. Each coil uses a black phenolic resin outer shell and a female blade-terminal connector, and the set replaces worn factory coils carrying GM part numbers 12558693, D581, and 19418993. Backed by the Mishimoto Lifetime Warranty, this Mishimoto ignition coil set is built to bring weak, misfiring ignition systems back to strong, reliable spark.
Fuel, air, compression, and spark are the four basics that keep an LS engine running right, and a tired ignition system can quietly cause misfires, rough idle, poor gas mileage, and even damage to a catalytic converter. As one of Mishimoto’s core ignition parts, this coil set is designed and tested to meet or exceed OEM GM performance specifications, helping improve engine startup, smooth out idle, and restore performance that has faded with age. Whether you are keeping a stock GM truck running like new or refreshing the ignition system ahead of other modifications, this Mishimoto ignition coil set delivers a full set of 8 distributorless COP coils to ensure every cylinder gets the spark it needs.
Vehicle Applications
This specific-fit Mishimoto ignition coil set covers GM LS-engine trucks and SUVs from 1999 through 2007, spanning the LR4, LM7, LQ4, LQ9, L59, L33, and L18 engine codes. Coverage includes the Chevrolet Silverado 1500 (1999-2007, plus the 2007 Silverado 1500 Classic), Silverado 1500 HD (2001-2003, 2005-2006, plus the 2007 Classic), Silverado 2500 (1999-2004), Silverado 2500 HD (2001-2007, plus the 2007 Classic), and Silverado 3500 (2001-2006, plus the 2007 Classic) and Silverado 3500 HD (2007). The matching GMC Sierra lineup shares the same coverage across the Sierra 1500, Sierra 1500 HD, Sierra 2500, Sierra 2500 HD, Sierra 3500, and Sierra 3500 HD, including their respective 2007 Classic models. It also fits the Chevrolet Avalanche 1500 (2002-2006) and Avalanche 2500 (2003-2006), Suburban 1500 (2000-2007) and Suburban 2500 (2000-2006), and the Tahoe (2000-2006), along with the GMC Yukon (2000-2006) and Yukon XL 1500 and Yukon XL 2500 (2000-2006). Rounding out fitment are the Cadillac Escalade (2002-2006), Escalade ESV (2003-2006), and Escalade EXT (2002-2006), plus the Hummer H2 (2003-2007).
Features
- Direct fit for 1999-2007 GM L-series truck engines
- High-quality replacement coils available in a set of 8 or single units
- Designed and tested to meet or exceed OEM GM performance specifications
- Improves engine startup, idle, and restores performance
- Refreshes ignition system, ensuring strong spark for stock and modified vehicles
- High-quality phenolic resin outer shell ensures longevity in high-temperature environments
- Replaces GM part numbers 12558693, D581, and 19418993
- Backed by the Mishimoto Lifetime Warranty
Specifications
- Brand: Mishimoto
- Part Number: MMIG-LSSQ-9908
- Package: Set of 8
- Ignition Type: Distributorless
- Coil Type: COP Coil
- Coil Wire Included: No
- Oil Filled: No
- Universal or Specific Fit: Specific
- Grade Type: Standard Replacement
- Length: 2.39 in
- Overall Height: 3.4 in
- Color: Black
- Terminal Type: Blade
- Connector Gender: Female
- Terminal Gender: Female
- Engine Codes: LR4, LM7, LQ4, LQ9, L59, L33, L18
- Includes: Mishimoto Ignition Coil(s), Mishimoto Lifetime Warranty
Frequently Asked Questions
What does this Mishimoto ignition coil set include?
It includes a full set of Mishimoto Ignition Coils backed by the Mishimoto Lifetime Warranty.
What OEM part numbers does this coil set replace?
This set replaces GM part numbers 12558693, D581, and 19418993.
What type of ignition coil is this?
It is a COP (coil-on-plug) coil designed for distributorless ignition systems, with a standard replacement grade type.
Which GM engine codes does this coil set fit?
It is built for the LR4, LM7, LQ4, LQ9, L59, L33, and L18 engine codes.
Does the set include a coil wire, and are the coils oil filled?
No, a coil wire is not included, and the coils are not oil filled.
What is the warranty on this Mishimoto ignition coil set?
This set is backed by the Mishimoto Lifetime Warranty.
âš WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
