Description
The Mishimoto MMIG-LSSQ-99 is a single coil-on-plug (COP) ignition coil built as a standard replacement for GM’s distributorless L-series V8 truck and SUV engines. Finished in black with a female blade-terminal connector, this Mishimoto ignition coil is a direct, specific-fit part designed to restore weak spark, rough idle, and misfire issues back to proper operation.
A properly running engine depends on fuel, air, compression, and spark working together, and a tired factory coil is often the culprit behind poor idle quality, sluggish startup, reduced fuel economy, and even catalytic converter damage over time. As part of Mishimoto’s ignition coils lineup, this single-unit coil is designed and tested to meet or exceed OEM GM performance specifications, refreshing the ignition system with strong, consistent spark whether your truck is running stock or has been modified. Mishimoto ignition parts like this coil use a high-quality phenolic resin outer shell built to hold up in high-temperature engine bay environments, and the coil is also available in a set of 8 for owners looking to replace the entire ignition system at once.
Vehicle Applications
This Mishimoto ignition coil is a specific fit for GM’s L-series truck and SUV lineup spanning model years 1999 through 2007. Coverage includes the Cadillac Escalade (2002-2006), Escalade ESV (2003-2006), and Escalade EXT (2002-2006); the Chevrolet Avalanche 1500 (2002-2006) and Avalanche 2500 (2003-2006); the Chevrolet Silverado 1500 (1999-2007) and Silverado 1500 Classic (2007), Silverado 1500 HD (2001-2003, 2005-2006) and Silverado 1500 HD Classic (2007), Silverado 2500 (1999-2004), Silverado 2500 HD (2001-2007) and Silverado 2500 HD Classic (2007), and Silverado 3500 (2001-2006), Silverado 3500 Classic (2007), and Silverado 3500 HD (2007); the Chevrolet Suburban 1500 (2000-2007) and Suburban 2500 (2000-2006); and the Chevrolet Tahoe (2000-2006). It also fits the GMC Sierra 1500 (1999-2007) and Sierra 1500 Classic (2007), Sierra 1500 HD (2001-2003, 2005-2006) and Sierra 1500 HD Classic (2007), Sierra 2500 (1999-2004), Sierra 2500 HD (2001-2007) and Sierra 2500 HD Classic (2007), Sierra 3500 (2001-2006), Sierra 3500 Classic (2007), and Sierra 3500 HD (2007), plus the GMC Yukon (2000-2006), Yukon XL 1500 (2000-2006), Yukon XL 2500 (2000-2006), and the Hummer H2 (2003-2007). It is compatible with GM engine codes LR4, LM7, LQ4, LQ9, L59, L33, and L18.
Features
- Direct fit for 1999-2007 GM L-series truck engines
- High-quality replacement coils available in a set of 8 or as a single unit
- Designed and tested to meet or exceed OEM GM performance specifications
- Improves engine startup and idle, restoring lost performance
- Refreshes the ignition system, ensuring strong spark for stock and modified vehicles
- High-quality phenolic resin outer shell for longevity in high-temperature environments
- Distributorless, coil-on-plug (COP) ignition type
- Black housing with a female blade-terminal connector
- Replaces GM part numbers 12558693, D581, and 19418993
- Backed by the Mishimoto Lifetime Warranty
Specifications
- Brand: Mishimoto
- Part Number: MMIG-LSSQ-99
- Option: Single Coil
- Length: 2.39 in
- Overall Height: 3.4 in
- Color: Black
- Terminal Type: Blade
- Connector Gender: Female
- Terminal Gender: Female
- Ignition Type: Distributorless
- Coil Type: COP Coil
- Coil Wire Included: No
- Oil Filled: No
- Universal or Specific Fit: Specific
- Grade Type: Standard Replacement
- Includes: Mishimoto Ignition Coil(s), Mishimoto Lifetime Warranty
- Replaces Part Numbers: 12558693, D581, 19418993
Frequently Asked Questions
What is the Mishimoto MMIG-LSSQ-99?
It is a single coil-on-plug (COP) ignition coil from Mishimoto’s ignition coils lineup, designed as a standard replacement for GM’s distributorless L-series V8 truck and SUV engines.
Which vehicles does this Mishimoto ignition coil fit?
It is a specific fit for 1999-2007 GM L-series trucks and SUVs, including the Cadillac Escalade, Escalade ESV, and Escalade EXT; Chevrolet Avalanche, Silverado, Suburban, and Tahoe; GMC Sierra, Yukon, and Yukon XL; and the Hummer H2, covering engine codes LR4, LM7, LQ4, LQ9, L59, L33, and L18. Exact year coverage varies by trim as listed in the vehicle applications section.
Is a coil wire included with this ignition coil?
No, a coil wire is not included with this Mishimoto ignition coil.
Is the Mishimoto MMIG-LSSQ-99 coil oil filled?
No, this ignition coil is not oil filled.
What OEM part numbers does this coil replace?
This Mishimoto ignition coil replaces GM part numbers 12558693, D581, and 19418993.
Does this Mishimoto ignition coil come with a warranty?
Yes, it 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.
