Bonbo Ignition Coil Brackets for D585 Coils — 5.3L LS/LSX Valve Cover Kit, Steel-Aluminum

Bonbo Truck Side Bolt Ignition Coil Brackets secure D585-style radiator coils to 5.3L LS valve covers for a direct, durable replacement that matches OE fit and function.

This coil bracket kit is made for trucks and swaps that use the D585 radiator-style ignition coils commonly found on many 5.3L LS and LSX platforms. The pack contains all metal brackets and hardware required to mount coils to valve covers, designed to replace worn or missing mounts and restore proper coil alignment and clamping force. Constructed from steel and aluminum alloy, the brackets resist high under-hood temperatures and corrosion so they remain functional and neat over time.

Will these brackets fit my engine and coils?

These brackets are engineered to fit D585 radiator-type coils and a broad range of GM 5.3L LS-family engines and swaps. Compatibility includes OE and common swap platforms, covering many LM, LQ, LY, LC and L-series codes listed for 5.3L applications. Always verify your coil style is the D585 radiator/heat-sink type before ordering to ensure correct fitment.

• Designed for D585 radiator-style coils (heat-sink profile)
• Compatible with many 5.3L LS/LSX engine codes (LM7, LQ4, LQ9, LY2, LC8, etc.)
• Fits both left and right valve covers in swap setups
• Check coil body shape and bolt spacing against photos/specs

How easy is installation and what’s included?

Installation is bolt-on and intended to be straightforward for anyone with basic hand tools and moderate mechanical knowledge. The kit ships with all brackets and fasteners needed to secure coils to valve covers, so no extra parts should be required for a standard application. Typical installation requires removing old brackets, aligning the new mounts, and torqueing the hardware to valve-cover specifications.

• Complete bracket set plus mounting hardware included
• Bolt-on replacement—no welding or fabrication for standard installs
• Quick swap time: often under an hour per side for experienced installers
• Follow vehicle torque specs and verify coil seating after install

What materials and durability features do these brackets offer?

Bonbo designed these mounts from a mix of hardened steel and aluminum alloy to balance strength and corrosion resistance under engine-bay heat. The materials withstand high temperatures and road conditions better than cheap stamped brackets, reducing the chance of warping or fastener failure over time. They also present a cleaner, more finished appearance to dress up the engine bay on show or daily-driven rigs.

• Constructed from steel and aluminum alloy for heat and rust resistance
• Durable finishes help prevent corrosion and extend service life
• Maintains correct coil orientation and clamping pressure
• OEM-equivalent strength and form for reliable performance

What warranty and support does Bonbo provide?

Bonbo offers a 30-day satisfaction guarantee on this coil bracket kit. If the product doesn’t meet your expectations or fitment needs, you can return it for a refund within that window. For fitment questions or post-purchase help, Bonbo’s customer support is available to assist and provide replacement guidance where needed.

• 30-day money-back guarantee for returns
• Customer support available for fitment and installation questions
• Packaged with all hardware to avoid missing parts on delivery
• Buy confidently with documented compatibility list

Who is this for? These Bonbo side-bolt ignition coil brackets are ideal for mechanics, DIY enthusiasts, and vehicle owners performing LS swaps or replacing deteriorated coil mounts on 5.3L LS family engines. Choose this kit if you need an OE-like, bolt-on solution for D585-style coils that improves coil security and engine-bay appearance without fabrication.