Product Details
This Whiteline Rear Upper Inner Frontward Control Arm Bushing Kit fits the 2016-2025 Mazda MX-5 Miata (ND). Part number W63617. Included: 2 bushings and 2 tubes. Chassis code: ND. It goes on the rear of the vehicle.
A control arm bushing is the pivot where the arm joins the chassis or the wheel carrier. Factory rubber is chosen for quiet and comfort, so it squashes under braking, acceleration, and cornering and lets the arm move more than it should. A firmer replacement keeps the arm where it belongs, which steadies the alignment and gives the car a more consistent feel. Polyurethane resists deflection far better than the soft rubber it replaces.
Installation is rated moderate, with about 2 hours of work listed. Get the car aligned once it is back on the ground. Other Whiteline parts we list for the MX-5 Miata: Rear Sway Bar Link, Adjustable Front Sway Bar Link, and Front and Rear Sway Bar Kit.
Features
- Self-lubricating: The bushing carries its own grease supply in internal reservoirs, so it keeps moving freely.
- Bushing compound: Oil, grease, ozone, and weather do not break down the synthetic elastomer used in the bushings.
- Material: The part is made of polyurethane.
- Install guide: Written install instructions are included with the part.
Specifications
| Part Number | W63617 |
| Part Name | Control Arm Bushings |
| Vehicle | 2016-2025 Mazda MX-5 Miata |
| Drivetrain | RWD |
| Chassis Code | ND |
| Bushing 1 Inner Diameter | 12.3 mm |
| Bushing 1 Length | 55 mm |
| Bushing 1 Outer Diameter | 31.4 mm |
| Bushing 2 Inner Diameter | 12.3 mm |
| Bushing 2 Length | 55 mm |
| Bushing 2 Outer Diameter | 31.4 mm |
| Bushing Quantity | 2 |
| Grade Type | Performance |
| Installation Difficulty | Moderate |
| Installation Time (hrs) | 2 |
| Kit Contents | 2 Bushings, 2 Tubes |
| Material | Polyurethane |
| Mounting Hardware Included | No |
| Outside Diameter | 31.4 mm |
| Vehicle Placement | Rear |
| Wheel Alignment Required | Yes |
| Notes | - |