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Dorman 686-453 Steering Knuckle - Front Left
| Brand | Dorman 686-453 |
|---|---|
| Position | Front Left |
| Material | Cast iron |
| Material | Hierro fundido |
| Length | 290 |
| Construction | Cast |
| Construction | Fundido |
| Color | Black |
| Color | Natural |
| Color | Negro |
| Width | 235 |
| Instruction Manual Included | No |
| Instruction Manual Included | Non |
| Mounting Hardware Included | No |
| Mounting Hardware Included | Non |
| Height | 120 |
| Grade Type | Reemplazo estándar |
| Grade Type | Standard replacement |
| Sensor Hole Diameter | 18 |
| Caliper Mounting Hole Quantity | 2 |
| Caliper Mounting Hole Diameter | 12.2 |
| Axle Included | No |
| Axle Included | Non |
| Contenidos del paquete | 1 nudillo |
| Contenidos del paquete | 1 pasador de chaveta |
| Contenidos del paquete | 1 perno |
| Contenidos del paquete | 1 tuerca |
| Diámetro de un cilindro del eje pivote de la dirección | No |
| Grado del artículo | Reemplazo estándar |
| Hub Included | No |
| Hub Included | Non |
| Item Grade | Standard |
| Fits | Hyundai and Kia · 6 vehicles |
OE FIX design. Proprietary coating helps prevent corrosion between mating surfaces.
Cast iron construction. A cast knuckle built for a durable steering repair.
Standard replacement. Directly replaces the original steering knuckle design.
Cross-references 51715C1000 for the same application. See all 1.
Dorman 686-453 Steering Knuckle for Kia and Hyundai
Dorman 686-453 is a front left steering knuckle for select Kia Optima and Hyundai Sonata applications. It addresses a common corrosion issue where the wheel hub assembly can seize to the steering knuckle, making removal difficult during service.
Key Features
- Cast iron construction for strength and durability
- Patent-pending proprietary coating helps resist corrosion between mating surfaces
- OE FIX design for a more permanent repair than the factory knuckle design
- Standard replacement grade for direct service use
- Black natural finish
- Fits 2016-2020 Kia Optima, front left
- Fits 2015 Hyundai Sonata, front left
Detailed Description
This Dorman steering knuckle is engineered for vehicles where rust can build up between the steering knuckle and wheel hub bearing, especially on Salt Belt vehicles but also on higher-mileage daily drivers. By using a corrosion-resistant coating on the contact surfaces, Dorman 686-453 helps reduce the chance of the hub and knuckle seizing together during future service. It is a cast iron, standard replacement steering knuckle for the front left position on 2016-2020 Kia Optima and 2015 Hyundai Sonata models. This part cross-references OE number 51715C1000 for the same application.
Common Repair Uses
- Seized wheel hub bearing removal issues
- Rust buildup between the hub and steering knuckle
- Damaged or non-salvageable original knuckle during hub service
- Front suspension steering knuckle replacement after corrosion-related failure
- Restoring proper front left steering and hub mounting points
Installation Notes and Tips
Verify front left fitment before ordering. Inspect the hub bearing, caliper mounting points, and related steering components during replacement. Transfer only the components required by the vehicle service procedure, and follow factory torque specifications and alignment procedures after installation.
Quality Assurance
Dorman OE FIX parts are developed to address known failure points in original designs. Part number 686-453 uses a proprietary coating and cast iron construction to support a more reliable repair in corrosion-prone service conditions.
| Year | Make | Model | Fuel Type | Position | Notes |
|---|---|---|---|---|---|
| 2020 | Kia | Optima | — | Front Left | — |
| 2019 | Kia | Optima | — | Front Left | — |
| 2018 | Kia | Optima | — | Front Left | — |
| 2017 | Kia | Optima | — | Front Left | — |
| 2016 | Kia | Optima | GAS | Front Left | — |
| 2015 | Hyundai | Sonata | GAS | Front Left | — |
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