PowerStop JBR739SCR Disc Brake Rotor - Rear

Overview

PowerStop JBR739SCR is a rear disc brake rotor built as a direct bolt-on replacement for original equipment. It is designed for Lexus applications that need OE-style fitment, smooth braking performance, and corrosion protection around the hat and edge.

This rotor fits 1998-2005 Lexus GS300, rear; 2001-2005 Lexus GS430, rear; 2001-2005 Lexus IS300, rear; 1998-2000 Lexus GS400, rear; and 2002-2010 Lexus SC430, rear. The JBR739SCR also cross-references Toyota/Lexus OE numbers 42431-30260 and 42431-53011 for the same application.

Key Features

• Partially coated rotor with silver epoxy on corrosion-prone areas
• Rust-resistant finish on the hat, outer edge, and vanes
• Full cast construction with mill balancing
• Smooth, solid rotor design for OE-style braking feel
• Matches original equipment weight and vane count for fitment consistency
• Rear brake rotor for Lexus GS, IS, and SC applications

Detailed Description

PowerStop’s coated hat and edge rotor line focuses on OE replacement fitment with added corrosion protection where it matters most. The JBR739SCR uses a full cast, solid rotor design with a smooth surface and mill-balanced construction to align with original equipment specifications. Its 307.00 mm outside diameter, 144.30 mm bolt circle, and 5-lug pattern support the correct rear brake setup on the listed Lexus models.

For drivers maintaining a Lexus GS300, GS430, IS300, GS400, or SC430, this rotor provides a direct replacement path without changing the original brake layout. The coated finish helps preserve appearance behind alloy wheels while the rotor’s OE-matched design supports consistent installation and serviceability. PowerStop JBR739SCR is a practical choice when replacing a rear brake rotor on compatible Lexus vehicles.

What It Helps Address

• Corrosion on exposed rotor surfaces
• Brake vibration caused by worn or uneven rotors
• Loss of braking consistency from rotor wear
• Visible rust buildup behind alloy wheels
• Fitment issues from non-OE-style replacement parts

Installation Notes and Tips

Install as a rear brake rotor on the listed Lexus applications only. Verify disc dimensions, bolt circle, and hub fit before installation. The rotor is solid and does not include an ABS tone ring. Follow standard brake service procedures and inspect pads, calipers, and related hardware during replacement.

Quality Assurance

PowerStop designs this rotor to match original equipment performance and specifications, including weight and vane count, for confirmed fitment on the listed applications. The coated finish adds corrosion resistance to the hat, outer edge, and vanes for long-term appearance and service support.