SCITOO 18-B4729/18-B4728 Front and Rear Brake Calipers Set - Durable

In this review of the SCITOO 18-B4729 and 18-B4728 caliper set, the bottom line is straightforward: this 12-piece caliper assembly is for owners who need direct-fit replacement calipers for a range of Cadillac, Chevrolet, GMC and Hummer models and value a complete bracketed unit that installs like an OE part. The reviewer found the kit most useful for front left and right swaps where the bracketed caliper and metal two-piston design speed up installation, and the included inlet and bleeder port sizes make it easy to match brake lines during service.

Key Features

• Complete kit: Includes paired front left and right calipers with brackets so mechanics can replace both sides with matched components for even braking feel.
• Wide vehicle fitment: Covers many Cadillac, Chevrolet, GMC and Hummer model years so owners of compatible trucks and SUVs can find a direct replacement without modification.
• Two metal pistons: Dual pistons with a 2.004 in diameter provide consistent clamping force for typical truck and SUV brake pads used on these platforms.
• Service friendly ports: M10 x 1.5 inlet and bleeder ports match common brake fittings to simplify line hookup and bleeding.
• Corrosion protection: White zincification finish helps resist surface corrosion in road salt and wet climates for longer appearance life.

Who It's For

This caliper assembly is best for DIY mechanics and professional technicians working on late 1990s to mid 2000s GM and Cadillac full-size trucks and SUVs who need an OE-style replacement with bracket included. It is particularly suited to owners replacing front driver and passenger side calipers together to restore balanced braking performance.

Those who should look elsewhere include owners of non-listed years or models, vehicles that require single-piston or specialty calipers, and anyone needing calipers with integrated parking brake actuators or preinstalled pads; this set is a bracketed two-piston design intended for compatible models only.

Pros & Cons

Pros

• Good fit and compatibility with many Cadillac, Chevrolet and GMC models, reducing search time for the right part.
• Included brackets and matching left/right OE numbers simplify a paired replacement job.
• Piston material and finish offer solid functionality and corrosion resistance for typical road use.

Cons

• Some users report occasional stickiness on caliper movement, which may require cleaning or servicing before installation.

Specifications

Our Verdict

The SCITOO 18-B4729 and 18-B4728 caliper set is a practical, value-oriented option for owners of compatible Cadillac, Chevrolet, GMC and Hummer trucks and SUVs who need a matched front caliper replacement with brackets. It delivers reliable function, straightforward fitment and useful corrosion protection, though buyers should inspect and service moving surfaces to avoid occasional stickiness before installation.

Frequently Asked Questions

Are these calipers direct replacements for my vehicle?
Check the fitment list for the exact model years; the kit is intended as a direct fit for many Cadillac, Chevrolet and GMC front applications that match the OE numbers.

Do these calipers include brackets and hardware?
Yes, the package includes calipers with brackets for front left and right positions; additional mounting hardware may depend on vehicle.

What size are the piston and ports?
Each caliper has two metal pistons at 2.004 in diameter and inlet and bleeder ports sized M10 x 1.5.