PowerStop KC4645 Disc Brake Kit - Rear

Rear Brake Upgrade for Tribeca

PowerStop KC4645 is a rear disc brake kit built for daily-driver use on select Subaru Tribeca and B9 Tribeca applications. It combines carbon-fiber ceramic pads, drilled and slotted rotors, and powder coated calipers to deliver a direct-fit brake service solution for rear axle replacement.

Compatible With 2006-2014 Subaru Tribeca and 2006-2007 Subaru B9 Tribeca, rear. The Z23 Daily Driver brake package is aimed at drivers who want stronger stopping response, lower brake dust, and corrosion-resistant components for regular street use.

Key Features

• PowerStop KC4645 rear brake kit for select Subaru Tribeca and B9 Tribeca models
• Carbon Fiber Ceramic friction material for performance-oriented street braking
• Low-dust pad formula to help keep wheels cleaner
• Slotted X drilled rotor surface for heat management and smoother braking feel
• Full cast rear rotors with rust and corrosion resistance in mind
• Powder coated red calipers for added corrosion protection and visible finish behind the wheel
• Rear floating caliper design with steel piston and aluminum casting
• Pad shims, brake lubricant, abutment clips, and rear caliper mounting bracket included

Product Line Details

The PowerStop Z23 Evolution Sport Brake Upgrade Kit line is focused on everyday driving with upgraded friction materials and matched rotor and caliper components. KC4645 follows that formula for rear brake service, giving Subaru Tribeca owners a coordinated replacement package instead of mixing separate parts from different sources.

Detailed Description

PowerStop KC4645 is engineered as a rear brake service kit for drivers replacing worn rear pads, rotors, and calipers on the Subaru Tribeca platform. The carbon-fiber ceramic pads are paired with drilled and slotted rotors to support consistent pedal feel, reduced brake dust, and improved resistance to heat buildup during normal street driving. Powder coated rear calipers add corrosion protection and a clean appearance behind the wheels.

This kit is a practical choice for 2006-2014 Subaru Tribeca rear brake repair and 2006-2007 Subaru B9 Tribeca rear brake replacement when the goal is to restore braking performance with upgraded components. Part number KC4645 is built around the rear axle and uses a 12.59-inch (319.7 mm) rear rotor outside diameter.

What It Helps Address

• Worn rear brake pads causing reduced stopping performance
• Rotor scoring, rust, or uneven braking feel
• Excess brake dust on wheels
• Corrosion on aging rear calipers
• Brake noise or vibration related to worn rear service parts

Installation Notes and Tips

Install KC4645 on the rear axle only and verify vehicle fitment by year, make, and model before service. Inspect the rear caliper mounting points, rotor surfaces, and brake hoses during replacement, and follow factory torque specifications and bedding procedures after installation. This kit includes pad shims, brake lubricant, abutment clips, and rear caliper mounting bracket components listed in the product data.

Quality Assurance

PowerStop positions the Z23 Evolution Sport line as a matched brake upgrade solution for daily drivers, with components selected to work together as a rear service package. KC4645 uses performance-grade carbon fiber ceramic friction material, corrosion-resistant caliper finishing, and drilled/slotted rotor construction for consistent street use.