Autoround Brake Caliper Replacement for 1999–2013 Chevy/GMC/Cadillac/Hummer — Front/Rear Direct-Fit, OE-Quality

This replacement brake caliper from Autoround restores clamping force and fluid sealing for vehicles originally equipped with part numbers 184728, 184729 (and equivalent cross-references). Built to ISO-quality standards by an OEM-level manufacturer, the caliper is pressure- and leak-tested before shipping and includes a three-year QA backing from Autoround. The fitment list covers a wide range of full-size trucks, SUVs and vans — check compatibility notes carefully to ensure correct front or rear placement for your vehicle.

Which vehicles and positions does this caliper fit?

The Autoround caliper fits numerous GM vehicles across model years roughly 1999–2013. Compatibility is specific to front or rear axle, and some applications require identifying GVW, brake code, or piston configuration.

• Cadillac Escalade models (2002–2006) and Escalade EXT/ESV front positions.
• Hummer H2 rear (2003–2009) and multiple Chevrolet Silverado/Sierra Suburban Tahoe applications.
• Express/Savana vans and GMC/Yukon/XL models with listed year and axle positions.
• Cross-reference numbers: 18-B4728, 18-B4729, 18040100/01, 25848000.

How does this caliper match OE quality and safety expectations?

Autoround calipers are produced to OE design tolerances and undergo factory inspection to ensure proper bore finish, piston fit, and bleed port integrity. Components use durable coatings and seals designed for long service life under road conditions.

• Manufactured under ISO quality controls to OE dimensional standards.
• Factory-tested for leaks and functionality prior to shipment.
• Durable corrosion-resistant finish and factory-installed rubber seals.
• Supplied with manufacturer QA and customer support for three years.

What should I check before ordering and installing this caliper?

Confirm your vehicle’s year, make, model and whether the original caliper was front or rear, single- or dual-piston, or tied to a specific GVW/brake code. Compare the OEM part numbers or cross-references to ensure a match and inspect mounting points and brake hose fittings during installation.

• Verify OEM part numbers: 184728, 184729, 18-P4728, 18-P4729.
• Confirm axle position (front or rear) and piston configuration.
• Check vehicle GVW or brake code when noted (some vans/trucks require specific variants).
• Bleed brake system after installation and inspect for leaks.

Are there parts or services typically needed when replacing a caliper?

When replacing a caliper, technicians commonly replace brake pads, hardware, and sometimes the brake hose or rotor if worn. Proper installation includes bench-bleeding the caliper and torquing bolts to manufacturer specs to prevent uneven braking or leaks.

• Inspect and replace brake pads and mounting hardware as needed.
• Check rotor thickness and surface; resurface or replace if below spec.
• Bleed the brake system, and torque caliper guide bolts to spec.
• Use compatible brake fluid and follow safety protocols for disposal.

Who this is for: The Autoround 18B4728/18B4729 caliper is intended for DIY mechanics and professional shops replacing worn, corroded, or leaking calipers on compatible GM full-size trucks, SUVs, and vans. It suits owners who need a direct-fit OE-style replacement with factory testing and a multi-year QA period. If you are unsure about fitment, verify your vehicle’s OEM part number, axle position and any GVW or brake-code details before purchase or contact Autoround Customer Service for guidance.