Dynamite Friction 631-48051L Disc Brake Rotor - Front Left

Drilled and Slotted Front Left Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver, part number 631-48051L, is a vented front left disc brake rotor built for heavy-duty GM trucks and vans. It features a slotted X drilled surface, zinc silver hat finish, and rust-resistant coating for a clean, service-ready appearance.

Compatible With Chevrolet Express 2500, Chevrolet Express 3500, GMC Savana 2500, GMC Savana 3500, Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, GMC Sierra 3500 HD, and related applications listed below.

• Part number 631-48051L for front left brake service
• Slotted X drilled braking surface for consistent pad contact
• Vented rotor design for heat management under load
• Zinc silver hat finish with rust-resistant coating
• 8-bolt, 8-lug pattern with 165.1 mm bolt circle diameter
• Outside diameter: 325 mm; nominal thickness: 38 mm; discard thickness: 36.5 mm
• Directional brake surface for correct side-specific installation

Product Line Details

This DFC Brake Rotor - Drilled and Slotted - Silver belongs to Dynamite Friction’s DFC rotor line, which focuses on direct-fit brake rotors with drilled and slotted surfaces and corrosion-resistant finishes. The silver zinc hat finish helps maintain a cleaner appearance on exposed brake components while the vented construction supports stable braking performance in demanding front axle applications.

Fitment

• Fits 2021-2026 Chevrolet Express 2500, front left.
• Fits 2023-2026 Chevrolet Express 3500, front left.
• Fits 2006-2012 Chevrolet Express 3500, front left.
• Fits 2004 Chevrolet Express 3500, front left.
• Fits 2021-2026 GMC Savana 2500, front left.
• Fits 2023-2026 GMC Savana 3500, front left.
• Fits 2006-2012 GMC Savana 3500, front left.
• Fits 2004 GMC Savana 3500, front left.
• Fits 2003-2022 Chevrolet Express 3500, front left, for vehicles with dual rear wheels.
• Fits 2021-2022 Chevrolet Express 3500, front left, single rear wheels.
• Fits 2003-2012 Chevrolet Express 3500, front left, single rear wheels.
• Fits 2013-2022 GMC Savana 3500, front left, for vehicles with dual rear wheels.
• Fits 2003-2008 GMC Savana 3500, front left, for vehicles with dual rear wheels.
• Fits 2021-2022 GMC Savana 3500, front left, single rear wheels.
• Fits 2003-2012 GMC Savana 3500, front left, single rear wheels.
• Fits 2013-2020 Chevrolet Express 3500, front left, single rear wheels, 3.54" gear ratio.
• Fits 2013-2020 Chevrolet Express 3500, front left, single rear wheels, 3.42" gear ratio.
• Fits 2013-2020 GMC Savana 3500, front left, single rear wheels, 3.42" gear ratio.
• Fits 2013-2020 GMC Savana 3500, front left, single rear wheels, 3.54" gear ratio.
• Fits 2011-2012 GMC Savana 3500, front left, dual rear wheels, limited slip Positraction axle.
• Fits 2011-2012 GMC Savana 3500, front left, dual rear wheels, drive ratio 3.73 & 4.10, 9,600 lb GVW.
• Fits 2011-2012 GMC Savana 3500, front left, dual rear wheels, drive ratio 3.73 & 4.10, 12,300 lb GVW.
• Fits 2001-2010 Chevrolet Silverado 2500 HD, front left.
• Fits 2007-2010 Chevrolet Silverado 3500 HD, front left, for vehicles with dual rear wheels.
• Fits 2007-2010 Chevrolet Silverado 3500 HD, front left, single rear wheels.
• Fits 2009-2010 GMC Savana 3500, front left, dual rear wheels, 12,300 lb GVW.
• Fits 2001-2010 GMC Sierra 2500 HD, front left.
• Fits 2007-2010 GMC Sierra 3500 HD, front left, for vehicles with dual rear wheels.
• Fits 2007-2010 GMC Sierra 3500 HD, front left, single rear wheels.
• Fits 2007 Chevrolet Silverado 2500 HD Classic, front left.
• Fits 2004-2007 Chevrolet Silverado 3500, front left, for vehicles with dual rear wheels.
• Fits 2004-2007 Chevrolet Silverado 3500, front left, single rear wheels.
• Fits 2007 GMC Sierra 2500 HD Classic, front left.
• Fits 2007 GMC Sierra 3500 Classic, front left, single rear wheels.
• Fits 2007 GMC Sierra 3500 Classic, front left, for vehicles with dual rear wheels.
• Fits 2006 GMC Sierra 3500, front left, for vehicles with dual rear wheels.
• Fits 2006 GMC Sierra 3500, front left, single rear wheels.
• Fits 2005 Chevrolet Express 3500, front left, 2nd design; 118mm rear disc center hole.
• Fits 2005 Chevrolet Express 3500, front left, 1st design; 123mm rear disc center hole.
• Fits 2001-2005 Chevrolet Silverado 3500, front left.
• Fits 2005 GMC Savana 3500, front left, 1st design; 123mm rear disc center hole.
• Fits 2005 GMC Savana 3500, front left, 2nd design; 118mm rear disc center hole.
• Fits 2001-2005 GMC Sierra 3500, front left.
• Fits 2002-2004 Chevrolet Avalanche 2500, front left, 2 inch body raise.

Common Brake Issues It Can Address

• Brake pulsation from uneven rotor wear
• Reduced stopping consistency under repeated braking
• Surface corrosion on exposed rotor components
• Heat buildup during towing or heavy-load driving
• Noise or pad glazing related to worn front rotors

Installation Notes

Verify rotor diameter, thickness, bolt pattern, and center hole dimensions before installation. This rotor is directional and side-specific for the front left position, so confirm left-side placement before mounting. Check vehicle configuration details such as single rear wheels, dual rear wheels, gear ratio, axle type, and GVW notes where listed in the fitment data. Part number 631-48051L is intended for direct replacement on the confirmed applications above.

Quality Assurance

Dynamite Friction supplies this rotor with a rust-resistant coating and zinc silver hat finish to help maintain appearance and serviceability. The vented construction, drilled and slotted surface, and OE-style dimensional specifications support consistent fitment on the listed Chevrolet and GMC applications.