Silscvtt DR-49 Ignition Coil with Integrated Module — Direct-Fit for Chevy/GMC 1995–2007 (10489421 C1098)

Silscvtt DR-49 ignition coil with integrated module is a direct-fit replacement that restores reliable spark for compatible Chevy and GM engines from the mid‑1990s to the 2000s.

This Silscvtt ignition coil assembly (DR-49 / 10489421) is built as a plug‑and‑play replacement for a long list of GM vehicles, including Chevy Astro, Blazer, Silverado and select Oldsmobile and Buick models. It pairs an ignition coil and module in one unit to simplify installation and reduce the need to source multiple parts. The unit is manufactured from durable materials to match original equipment fit and function and is supplied without installation tools or instructions.

Which vehicles and part numbers does this unit replace?

The Silscvtt DR-49 is compatible with many GM trucks, SUVs and performance cars from roughly 1995–2007. It replaces several OEM and aftermarket reference numbers to help you confirm fitment against your vehicle’s original part.

• Common fitments: Chevy Astro (1996–2005), Blazer (1996–2005), Silverado 1500 (1999–2007), Silverado (1995–1999)
• Other models: Suburban 1500, C1500/C2500/C3500, Firebird, Escalade, Fleetwood, Oldsmobile Bravada
• Cross-reference numbers: DR-49, C1098, 10489421, D577, CE20003 and other listed IDs

How easy is installation and what should I prepare?

This coil is designed as a direct replacement to match original mounting points and electrical connectors, so most installations are straightforward for anyone comfortable working on ignition systems. Basic hand tools are usually sufficient, but you’ll need to disconnect the battery and follow safe ignition system practices.

• Preparation: disconnect battery, identify faulty coil pack by vehicle service manual
• Tools typically needed: ratchet, sockets, screwdrivers, dielectric grease
• Note: product ships without tools or printed instructions—refer to a repair manual or online guide

What are the product’s durability and performance features?

Silscvtt designs this coil assembly to meet the fit and function of the original equipment, using quality materials intended for extended service life under normal operating conditions. It is not a performance upgrade; it prioritizes consistent spark delivery and reliable electrical connection.

• Construction: robust housing and terminals to resist heat and vibration
• Function: integrated ignition module for consistent spark timing and coil control
• Quality: manufactured to match OEM electrical and mounting specifications

Will this part resolve common ignition issues?

Replacing a failing coil or ignition module with a proper direct-fit unit like this can eliminate symptoms such as misfires, rough idle, or starting difficulties when those problems are caused by a defective coil. Always diagnose the ignition system and related components to confirm the coil is the root cause before replacement.

• Addresses coil-related misfires and intermittent spark loss when the coil is faulty
• Does not include wiring harnesses, diagnostic equipment, or additional modules
• Recommended: clear trouble codes and verify with a scan tool after installation

Who is this for: The Silscvtt DR-49 ignition coil assembly is suitable for DIY mechanics, professional technicians, and fleet owners who need a dependable, direct replacement for GM vehicles from the late 1990s to mid‑2000s. Choose this part if your vehicle’s service manual, VIN, or cross‑reference numbers match the listed fitments and you need a single unit that replaces both coil and module without custom wiring.