Caliso BR31339 Rear Solid Drum-In-Hat Disc Brake Rotor

The Caliso BR31339 is a rear solid disc brake rotor with drum-in-hat (DIH) design, engineered as a direct OEM replacement for a wide range of front-wheel-drive passenger vehicles. The drum-in-hat configuration integrates the parking brake drum into the rotor hat, maintaining full parking brake functionality without requiring a separate drum assembly.

This rotor is manufactured from full-cast iron construction and features a non-directional swirl finish on the braking surface, eliminating the need for additional machining prior to installation. It is precision balanced for smooth, vibration-free braking performance right out of the box.

Key Features:

• Rotor style: Solid (non-vented)
• Construction type: Drum-in-hat (DIH) for integrated parking brake
• Braking surface: Non-directional swirl finish — no pre-machining required
• Material: Full-cast iron
• Outside diameter: 10.31 in (262 mm)
• Nominal thickness: 0.39 in (10.0 mm)
• Discard thickness: 0.33 in (8.4 mm)
• Center hole diameter: 2.99 in (76 mm)
• Bolt hole quantity: 5
• Bolt circle diameter: 4.5 in (114.3 mm)
• Overall height: 2.41 in (61.2 mm)
• Cross drilled: No
• Slotted: No
• ABS tone ring included: No

Cross-Reference Part Numbers: 980095, 880095, 18A1663, 25909, 31339, 100-31339, 121.51011, AX31339, BD2905, GP31339, JBR959, PM31339, PRT5535, X51556

This brake rotor is sold individually. Install in pairs per axle as recommended by your vehicle manufacturer for balanced braking performance.