PRODUCT DETAILS
Eibach Rear Sway Bar Hardware Kit for 2006-2015 Civic - Part #4031.312HKR
Non-Si 8th and 9th gen Civics left the factory without a rear sway bar, which is a big part of why they understeer the way they do. It also means there is nothing back there to bolt a rear bar to. This kit is the missing piece: the brackets, bushings, and mounting hardware that let Eibach's 19mm rear bar (part 4031.312) install on a Civic that never had one. Eibach requires it on every non-Si application of that bar.
Adding the rear bar is the single most noticeable handling change on these cars. It wakes up turn-in, balances the chassis, and cuts the stock push without touching spring rates or ride quality. We sell the bar itself on its own page as the Eibach 19mm Rear Sway Bar for 2006-2015 Honda Civic; if your Civic is a non-Si model, put this hardware kit in the same cart or the bar will sit in the box.
Specifications
| Part Number | 4031.312HKR |
| Works With | Eibach 19mm rear sway bar, part 4031.312 |
| Kit Contents | Mounting brackets, bushings, and hardware for the rear bar |
| Position | Rear |
| Weight | 2.2 lbs |
| Warranty | Eibach One-Year Warranty (hardware kits) |
Fitment
| Years | Vehicle | Trims |
| 2006-2015 | Honda Civic (non-Si) | Base, DX, EX, EX-L, GX, HF, LX, LX-S, Natural Gas, SE |
Eibach lists this hardware kit for the 2006-2011 Civic excluding Hybrid and for 2012-2015 Civic 1.8L models. The Si is not covered and does not need it: Si models came with a factory rear bar, so the mounting points are already there. Hybrid models are excluded in Eibach's application data.
What to Know Before You Buy
This is mounting hardware only; the sway bar is sold separately. If you have an 06-11 Si, skip this kit and just buy the bar, since your car already has the factory brackets. Eibach covers hardware kits with a One-Year Warranty, which is shorter than the Five-Year coverage on the bar itself, so keep the distinction straight if a warranty question ever comes up.
Fitment
| Years | Vehicle | Trims |
| 2006-2015 | Honda Civic (non-Si) | Base, DX, EX, EX-L, GX, HF, LX, LX-S, Natural Gas, SE |
Eibach lists this hardware kit for the 2006-2011 Civic excluding Hybrid and for 2012-2015 Civic 1.8L models. The Si is not covered and does not need it: Si models came with a factory rear bar, so the mounting points are already there. Hybrid models are excluded in Eibach's application data.
| Part Number | 4031.312HKR |
| Works With | Eibach 19mm rear sway bar, part 4031.312 |
| Kit Contents | Mounting brackets, bushings, and hardware for the rear bar |
| Position | Rear |
| Weight | 2.2 lbs |
| Warranty | Eibach One-Year Warranty (hardware kits) |