WFLNHB Ignition Coil Assembly DR-49 with Module D577 – Direct Replacement for Chevy/GMC, Preassembled

WFLNHB Ignition Coil DR-49 with Ignition Module D577 is a direct-replacement ignition coil assembly designed to restore spark performance on a wide range of Chevy, GMC, Oldsmobile and Pontiac models from the mid-1990s through the 2000s.

This compact ignition coil and module combo from WFLNHB replaces worn or faulty factory units and arrives preassembled and sealed for convenient installation. Engineered to match the mounting points and electrical connections of common OE numbers, it simplifies swapping the old coil without custom wiring. Use the fitment list and replacement part numbers below to confirm compatibility before purchasing.

Will this ignition coil fit my vehicle?

Check fitment by matching the vehicle model and year to the compatibility list or by verifying one of the listed part numbers on your original coil. This assembly covers many GM vehicles including full-size trucks, vans, SUVs and a number of passenger cars from the 1995–2007 model years. If your car's OEM part number matches any of the references, this should be a direct fit.

• Fits Chevy Astro, Blazer, S10, Silverado, Suburban, Express vans and more.
• Also compatible with Escalade, Fleetwood, Bravada and Firebird models.
• Replaces DR-49, C1098, D577, 10489421, CE20003 and other OE numbers.

How easy is installation and what comes in the box?

The coil and ignition module arrive preassembled inside a sealed package so you can install it right away with basic hand tools. Installation typically requires removing the old coil, swapping connectors, and bolting the new unit in place; many DIYers complete the swap in under an hour. Follow vehicle-specific service guidelines and disconnect the battery before beginning.

• Package includes one ignition coil with integrated ignition module.
• Preassembled and sealed for immediate installation.
• Standard electrical connectors and mounting points to simplify replacement.

What are the notable features and durability expectations?

This WFLNHB assembly is built from corrosion-resistant materials and molded housings intended for long-term road use. While not an OEM-branded part, it is manufactured to meet common performance and fitment standards, offering a cost-effective way to restore ignition reliability. Regular inspection of wiring and boots will help prolong service life.

• Durable molded housing to protect internal components.
• Engineered to match electrical and mechanical specifications of referenced OE numbers.
• Designed for stable spark delivery across typical operating temperatures.

Which part numbers and references does this replace?

The unit is supplied as a replacement for multiple legacy GM ignition coil references, making it useful for shops and DIYers who encounter varied part numbers. Confirming the OEM number on your old coil ensures you receive the correct match. Use the list below to cross-reference quickly.

• Common cross-references: DR-49, C1098, 5C1062, LX381, DR178.
• Additional numbers: 10489421, 8104894210, CE20003, E208, D577.
• Also replaces part: 50007, 52-154 and R-4 44.

Who is this for? The WFLNHB Ignition Coil DR-49 with Ignition Module D577 is aimed at vehicle owners, independent mechanics and small repair shops that need a reliable, affordable replacement for aging or failed ignition coils on compatible GM platforms. If you drive or repair Chevy, GMC, Oldsmobile or Pontiac vehicles from the mid-1990s through the mid-2000s and your engine shows misfires, rough idle, or a check-engine light pointing to ignition issues, this preassembled coil-module is a practical replacement option. Always verify fitment against your vehicle year and OEM part number before ordering.