Description
The Mishimoto MMIG-LSHS-99 is a single ignition coil built as a direct-fit replacement for 1999-2007 GM L-series engines that use the heatsink-style coil design. Designed for owners running the LR4, LM7, LQ4, LQ9, L59, or L33 engine codes, this Mishimoto ignition coil is engineered and tested to meet or exceed OEM GM performance specifications, restoring the strong, consistent spark these engines need.
A properly running engine depends on fuel, air, compression, and spark working together, and weak spark from a tired ignition coil can cause misfiring, rough idling, poor gas mileage, and even damage to the catalytic converter. This Mishimoto ignition coil refreshes the ignition system to help improve engine startup and idle quality on both stock and modified vehicles. It’s built with a high-quality phenolic resin outer shell for longevity in high-temperature underhood environments, and it’s available as a single unit or in a set of eight for a complete ignition refresh. As part of the broader lineup of Mishimoto ignition parts, this coil is finished in black and uses a female blade-type terminal and connector for straightforward electrical connection.
Vehicle Applications
This coil is a specific fit, not a universal part, and covers a wide range of GM-platform trucks and SUVs. It’s compatible with the Chevrolet Silverado 1500 (1999-2006), Silverado 1500 Classic (2007), Silverado 1500 HD (2001-2003, 2005), Silverado 2500 (1999-2004), Silverado 2500 HD (2001-2006), Silverado 2500 HD Classic (2007), Silverado 3500 (2001-2006), Silverado 3500 Classic (2007), and Silverado 3500 HD (2007), along with the Suburban 1500 (2000-2006), Suburban 2500 (2001, 2004), Tahoe (2000-2006), Avalanche 1500 (2002-2006), Avalanche 2500 (2004), Express 1500/2500/3500 (2003-2007), Monte Carlo (2006), SSR (2003-2004), and Trailblazer EXT (2003-2004). GMC coverage includes the Sierra 1500 (1999-2006), Sierra 1500 Classic (2007), Sierra 1500 HD (2001), Sierra 2500 (1999-2000, 2002-2004), Sierra 2500 HD (2002-2007), Sierra 3500 (2003-2006), Sierra 3500 Classic (2007), Sierra 3500 HD (2007), Yukon (2000-2006), Yukon XL 1500 (2000-2006), Savana 1500/2500/3500 (2003-2007), Envoy XL (2003-2004), Envoy XUV (2004), and W3500 Forward (2003). Also covered are the Cadillac Escalade (2002-2006), Escalade ESV (2003-2006), and Escalade EXT (2002-2006), the Buick Rainier (2004-2005), Hummer H2 (2003-2007), and the Isuzu Ascender (2003-2004) and Isuzu NPR (2003, 2006).
Features
- Direct fit for 1999-2007 GM L-series engines with heatsink-style coils
- Available as a single Mishimoto ignition coil or in a set of eight
- Designed and tested to meet or exceed OEM GM performance specifications
- Improves engine startup, idle, and restores ignition performance
- Refreshes the ignition system for strong spark on stock and modified vehicles
- High-quality phenolic resin outer shell for longevity in high-temperature environments
- Backed by the Mishimoto Lifetime Warranty
- Replaces GM part numbers 12563293, 19418992, 10457730, D585, and 19005218
Specifications
- Brand: Mishimoto
- Part Number: MMIG-LSHS-99
- Coil Type: COP Coil
- Ignition Type: Electronic
- Grade Type: Standard Replacement
- Universal or Specific Fit: Specific
- Coil Wire Included: No
- Oil Filled: No
- Length: 3.72 in
- Overall Height: 2.94 in
- Color: Black
- Terminal Type: Blade
- Connector Gender: Female
- Terminal Gender: Female
- Engine Codes: LR4, LM7, LQ4, LQ9, L59, L33
- Includes: Mishimoto Ignition Coil(s), Mishimoto Lifetime Warranty
Frequently Asked Questions
What vehicles does the Mishimoto MMIG-LSHS-99 ignition coil fit?
It is a direct fit for 1999-2007 GM L-series engines with heatsink-style coils, covering vehicles such as the Chevrolet Silverado, Suburban, Tahoe, and Avalanche, GMC Sierra, Yukon, and Savana, Cadillac Escalade, Buick Rainier, Hummer H2, and Isuzu Ascender and NPR equipped with LR4, LM7, LQ4, LQ9, L59, or L33 engines.
What OEM part numbers does this Mishimoto ignition coil replace?
It replaces GM part numbers 12563293, 19418992, 10457730, D585, and 19005218.
Does the MMIG-LSHS-99 include a coil wire?
No, this ignition coil does not include a coil wire.
Is the Mishimoto ignition coil oil filled?
No, it is not oil filled.
Is this Mishimoto ignition coil sold individually or as a set?
High-quality replacement coils are available in a set of 8 or as a single unit.
Does the Mishimoto ignition coil come with a warranty?
Yes, it is backed by the Mishimoto Lifetime Warranty.
⚠ 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.
