Rear Left Trailing Arm for 1999-2003 Mazda Protege & More - Dorman 521-685

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$46.99
MPN: 521-685
Item Package Quantity: 1
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Dorman - OE Solutions Suspension Trailing Arm P/N:521-685
Dorman - OE Solutions Suspension Trailing Arm P/N:521-685
$46.99

Help keep the rear wheel located and under control with the Dorman suspension trailing arm, part number 521-685, a direct-fit replacement for the rear left position on the 1999-2003 Mazda Protege and 2002-2003 Mazda Protege5. See the Buyer's Guide tab for engine-level fitment details.

Dorman - OE Solutions built this arm with passenger safety in mind and rigorously tested it for secure performance. It is designed as a direct replacement for the vehicle's original part, and Dorman's evaluation process is intended to deliver a smooth ride and predictable handling.

  • Direct replacement: designed to fit and function like the original equipment part on the listed applications.
  • Quality construction: made from the same materials as the original equipment for safety and reliability.
  • Protective finish: helps the arm resist corrosion.
  • Quality tested: tested to confirm proper fit and performance.

A trailing arm links the rear wheel assembly to the vehicle's chassis and helps control wheel movement as the suspension travels. Signs this part may need replacing include a bent, cracked or heavily corroded arm, clunking from the rear over bumps, wandering handling or uneven rear tire wear. Other components can cause the same symptoms, so diagnose the cause before replacing.

Interchange: 102-6614
1026614 · TC6284 · CA6450 · 13CB76038 · RK642050 · BJ0E28250A · BJ0E28250B · BL8D28250A · BL8D28250B · CMS76129 · 2606240

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

102-6614, TC6284, CA6450, 13CB76038, RK642050, BJ0E28250A, BJ0E28250B, BL8D28250A, BL8D28250B, CMS76129, 2606240

Frequently Asked Questions

What does a Dorman trailing arm do?

It links the rear wheel assembly to the vehicle's chassis and helps locate the wheel and control its movement as the suspension moves.

Which vehicles does part 521-685 fit?

It is a direct-fit replacement for the 1999-2003 Mazda Protege and 2002-2003 Mazda Protege5. See the Buyer's Guide tab for engine-level details.

Which position is this trailing arm for?

It is cataloged for the rear left position on the listed Mazda applications.

What are signs a trailing arm may need replacing?

Possible signs include a bent, cracked or heavily corroded arm, clunking from the rear over bumps, wandering handling or uneven rear tire wear. Diagnose the cause first, as other parts can cause these.

Is there anything to know before installing it?

Follow the vehicle service information for the procedure, torque values and correct fasteners, including whether the originals may be reused. An alignment check after installation is commonly recommended.