Dorman - OE Solutions Steering Knuckle P/N:686-340
Dorman 686-415 front left steering knuckle for the 2016-2021 Honda Civic connects the front left wheel to the suspension. It is designed as a direct replacement for the original knuckle.
A knuckle bent or cracked by a curb strike, pothole or collision can show up as uneven tire wear, a knock from the front end or steering that feels off. These signs alone do not prove the knuckle is the problem; a worn bushing can cause them too.
It is a front knuckle for the 2016-2021 Honda Civic, with one on each side of the front axle. This listing is one knuckle for the front left; the front right is a separate part, and the other side of that axle is normally done at the same time.
Fit and size
Build and materials
One steering knuckle and one bolt. The hub, axle and other mounting hardware are not included, so plan on new fasteners, since the old ones may not be reusable. No instruction manual comes with it.
Interchange: 51216TBAA03
This part cross-references / interchanges with the following part numbers:
Will Dorman 686-415 work as a knuckle for the 2016-2021 Honda Civic?
Yes. Dorman 686-415 is the front left steering knuckle for the 2016-2021 Honda Civic. The front right side is a separate part.
Does this steering knuckle come with a bolt, hub or axle?
One bolt comes with this steering knuckle. The hub, axle and other mounting hardware are not included.
What size are the caliper and sensor holes on this knuckle?
On Dorman 686-415, the two caliper mounting holes are 12 mm in diameter and the sensor hole is 10 mm in diameter.
Can a pothole or curb hit damage a steering knuckle?
Yes. A hard curb strike, pothole or collision can damage a knuckle, and uneven tire wear or a front-end knock can be signs. Have a shop inspect the front end promptly.
Does Dorman 686-415 replace the 51216TBAA03 number?
Yes. 51216TBAA03 is listed as an interchange number that Dorman 686-415 replaces. This knuckle is for the front left position.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.