Dynamic Friction 631-37003L Disc Brake Rotor - Rear Left

Overview

The Dynamic Friction 631-37003L is a disc brake rotor built for rear left applications with a slotted and drilled surface. It features a zinc silver hat finish and rust-resistant coating for added corrosion protection. This rotor is a fitment-specific replacement for select Asuna and Isuzu models.

Key Features

• Slotted and drilled rotor surface for consistent brake contact and heat management.
• Rust-resistant coating helps protect exposed surfaces from corrosion.
• Zinc silver hat finish adds a clean, durable appearance.
• Solid rotor construction with a 256 mm outside diameter and 100 mm bolt circle.
• Directional braking surface for application-specific performance.

Detailed Description

The Dynamic Friction 631-37003L disc brake rotor is engineered for rear left fitments that require a 4-lug, 100 mm bolt pattern and a 57 mm center hole. Its slotted X drilled surface and solid rotor design support stable braking characteristics, while the plain disc finish and rust-resistant coating help maintain the rotor over time. This part number, 631-37003L, is listed for 1990-1993 Isuzu Impulse, 1991-1993 Isuzu Stylus, and 1993 Asuna Sunfire rear left applications. For buyers searching for a rear left brake rotor for Isuzu Impulse or Isuzu Stylus, 631-37003L provides a direct fitment reference tied to the listed vehicles.

Common Issues This Rotor May Address

• Brake pulsation caused by worn or uneven rotor surfaces.
• Reduced braking consistency from heat-affected rotor faces.
• Surface corrosion on exposed brake components.
• Noise or vibration associated with rotor wear.
• Fitment replacement needs for listed rear left applications.

Installation Notes

Verify the rear left position, bolt circle diameter, center hole diameter, and overall dimensions before installation. Confirm rotor thickness against service limits and inspect pads, caliper condition, and hub surfaces during replacement. This part number, 631-37003L, should be matched to the exact vehicle listing before installation on Isuzu Impulse, Isuzu Stylus, or Asuna Sunfire applications.

Quality Assurance

Dynamic Friction supplies brake components with application-specific engineering and corrosion-resistant finishes. The DFC Brake Rotor - Drilled and Slotted - Silver line focuses on rotor design details that support consistent braking performance and long-term surface protection.