Beck/Arnley Disc Brake Rotor 083-3778
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Beck/Arnley Disc Brake Rotor 083-3778
Beck/Arnley Disc Brake Rotor 083-3778 - view 2
Beck/Arnley Disc Brake Rotor 083-3778 - view 3
Beck/Arnley Disc Brake Rotor 083-3778 - view 4

Beck/Arnley Disc Brake Rotor P/N:083-3778

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$58.99
MPN: 083-3778
Item Package Quantity: 1
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Beck/Arnley Disc Brake Rotor P/N:083-3778
Beck/Arnley Disc Brake Rotor P/N:083-3778
$58.99

Keep the rear brakes turning true with the Beck/Arnley Disc Brake Rotor 083-3778, a rear-axle replacement rotor that gives the brake pads a fresh, flat friction surface to clamp against. It drops in as a direct-fit replacement for the 2024-2026 Hyundai Kona, 2020-2026 Hyundai Sonata, 2025 Kia K4, 2021-2024 Kia K5, and 2023-2024 Kia Niro EV — see the Buyer's Guide tab for engine-level fitment.

  • Matches OE form, fit and function: designed as a direct replacement for the Original Equipment application on foreign nameplates, with attention to form, fit, and function.
  • Directional finish: optimizes break-in and pad seating.
  • High carbon content: maximizes thermal conductivity.
  • High-temp coating on exposed surfaces: improves appearance.

Worn, scored, or warped rotors can cause pulsation through the pedal, noise, or vibration under braking; if the rear rotor is the cause, this application-specific unit replaces it. Sold individually — this listing is for one rotor. For even, balanced braking it's best practice to replace both rear rotors as a matched pair and inspect the pads at the same time.

Interchange: 12050029 · 58411L0000 · 58411L1000 · JBR1909EVC · BD181198E

This part cross-references / interchanges with the following part numbers:

12050029, 58411L0000, 58411L1000, JBR1909EVC, BD181198E

Frequently Asked Questions

What vehicles does this rotor fit?

It's a direct-fit replacement for the 2024-2026 Hyundai Kona, 2020-2026 Hyundai Sonata, 2025 Kia K4, 2021-2024 Kia K5, and 2023-2024 Kia Niro EV. Check the Buyer's Guide tab for engine-level fitment.

Is this a front or rear rotor?

This is a rear disc brake rotor for the listed applications.

Does one listing include both rotors?

No. It's sold individually, so this listing is for one rotor. For even, balanced braking it's best to replace both rear rotors as a matched pair.

What does the high carbon content do?

The high carbon content maximizes thermal conductivity, and the directional finish helps optimize break-in and pad seating.

Why is my rear brake pedal pulsating?

Worn, scored, or warped rotors can cause pedal pulsation, noise, or vibration under braking. Diagnose the cause first; if the rear rotor is at fault, this rotor replaces it.

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