SCITOO Front Left Brake Caliper with Bracket 18B4919A – Driver-Side, 2x 51mm Phenolic Pistons

SCITOO Front Left Brake Caliper with Bracket 18B4919A is a ready-to-install front driver-side replacement caliper engineered to match OE fit and restore reliable stopping power.

This front left brake caliper from SCITOO is built as a direct replacement for a range of GM full-size trucks and SUVs. It ships as a single complete caliper assembly with the mounting bracket and hardware included, so you can swap it in without altering your vehicle. The caliper uses two phenolic pistons sized 2.01 inches (51 mm) and features M10 x 1.5 inlet and bleeder ports. SCITOO finishes and tests each unit to meet or surpass original equipment standards for performance and endurance.

Which vehicles will this caliper fit?

This caliper is designed for many Cadillac, Chevrolet, and GMC models from late 2000s to mid-2010s. It fits Escalade, Escalade ESV, Escalade EXT, XTS, Avalanche, Silverado 1500, Tahoe, Suburban, Yukon, Yukon XL, Savana 1500, and Sierra 1500 across the years listed by SCITOO.

• Compatible models include Cadillac Escalade (2008–2018) and Escalade ESV (2008–2019).
• Also fits Silverado 1500, Tahoe, and Suburban on the model years noted by SCITOO.
• Check the OE number 18B4919A and installation position (front driver side) before ordering.

What are the important technical details I should know?

The caliper arrives as a single-piece disc brake assembly with the bracket already attached, simplifying installation. It uses two 51 mm phenolic pistons and common-sized M10 x 1.5 inlet and bleeder ports for brake line and service compatibility.

• Included: 1 caliper assembly with bracket and mounting hardware for direct installation.
• Piston count/size: 2 pistons, 2.01 in (51 mm) diameter, phenolic material.
• Ports: inlet and bleeder both M10 x 1.5 for standard brake fittings.
• OE reference: 18B4919A — verify to ensure exact match for your vehicle.

How easy is installation and what should I prepare?

SCITOO supplies the caliper with its mounting bracket and necessary hardware so most installations are bolt-on and do not require bracket swapping or modification. Prepare basic hand tools, a jack and stands, and a brake bleeding kit to finish the job safely and correctly.

• Comes with bracket and mounting hardware for direct bolt-on replacement.
• Expect to bleed the brake system after installation to remove air.
• Recommended tools: socket set, torque wrench, jack stands, and a brake bleeder.

What quality checks and features does SCITOO provide?

Each caliper is coated to resist corrosion and undergoes multi-point testing so it meets or exceeds OE expectations for fit and function. The phenolic pistons and tested finish are chosen to deliver consistent operation and longevity under typical driving conditions.

• Protective coating to help prevent rust and surface wear.
• Multiple inspections and functional tests prior to shipping.
• Engineered to match OE mounting points and hydraulic interfaces.

Who is this for: This SCITOO front left brake caliper is intended for owners and mechanics replacing a worn, leaking, or damaged caliper on compatible Cadillac, Chevrolet, or GMC trucks and SUVs. It's ideal for drivers who want a cost-effective, OE-style replacement that installs without modification, and for DIYers and shops that prefer a complete caliper-and-bracket solution to minimize labor and parts sourcing.