Disc Brake Caliper Assembly Rear Right Passenger Side - Reliable Fit

In this review of the KAX disc brake caliper assembly, the bottom line is simple: this unit is for owners of compatible Hyundai Sonata and Kia Optima models who need a direct, reliable rear right passenger side replacement. It installs cleanly, matches factory fitment references, and focuses on durability with an antirust coating and high-strength bolts. For anyone replacing a worn or damaged caliper and wanting a cost-effective, straightforward swap, this caliper delivers the core expectations of fit and function without unnecessary extras.

Key Features

• Vehicle Fitment: Designed specifically for rear right passenger side fit on 2011-2014 Hyundai Sonata, 2011-2015 Kia Optima 2.4L and 2015 Hyundai Sonata 2.4L, which simplifies selection for those models.
• Reference Numbers: Matches common reference numbers such as 19-B6456 and 583113QA10 so it is easy to confirm compatibility against OEM parts lists.
• Antirust Coating: The caliper is coated to resist corrosion, which helps prolong service life in wet or salted-road environments.
• Smooth Piston Operation: CNC precision machining promotes smooth piston sliding and can contribute to more consistent braking feel and potentially shorter stopping distance.
• Durable Fasteners: High-strength bolts are used to reduce the risk of bolt failure under hard braking, improving long-term stability and safety.
• Serviceable Ports: Defined inlet and bleeder port sizes allow straightforward connection and maintenance during installation or brake bleeding.

Who It's For

This caliper is best for DIY mechanics and independent shops replacing a failed rear right caliper on the listed Sonata and Optima 2.4L model years who want a part that matches reference numbers and offers corrosion protection. It is also suitable for owners seeking a direct-fit replacement that focuses on essential durability and reliable operation.

It is not intended for owners of different engine sizes, different model years outside the listed range, or those who require performance upgrades beyond a factory-equivalent replacement. Buyers should verify vehicle details like drivetrain and heavy-duty variants before ordering.

Pros & Cons

Pros

• Good fit and function for listed Hyundai Sonata and Kia Optima models, making installation straightforward.
• Antirust coating helps extend service life in corrosive conditions.
• CNC machined piston and high-strength bolts improve piston action and mechanical stability during hard braking.
• Clear reference numbers simplify compatibility checks against OEM parts.

Cons

• One customer reported a piston-size related issue after extended use, so long-term durability may vary by driving conditions.
• Fits only the specified model years and side, so careful vehicle verification is required before purchase.

Specifications

Our Verdict

The KAX rear right brake caliper assembly is a sensible choice for owners of the specified Sonata and Optima 2.4L models who need a direct replacement that emphasizes fit, corrosion resistance, and solid mechanical fastening. It offers good value for routine replacement needs, though buyers should confirm vehicle specifics and watch for any long-term piston wear in heavy-use applications.

Frequently Asked Questions

Will this caliper fit my 2013 Hyundai Sonata?
Yes, it is listed for 2011-2014 Hyundai Sonata models for the rear right passenger side; confirm drivetrain and trim if your car has nonstandard options.

What is the piston size?
The outer diameter piston size is specified as 1.335 in.

Does it come ready to install?
The caliper includes the necessary port sizes and coating; users should supply standard hardware and follow bleeding procedures during installation.