SPL Parts SPL RKB FRS Knuckle Bushings - SPL Parts Subaru BRZ / 15 WRX / Toyota 86/GR86 Rear Spherical Knuckle Bushing for a 2015-2024 Subaru WRX Base, 2015-2025 Subaru WRX Limited, 2015-2025 Subaru WRX Premium, 2022-2025 Subaru WRX GT, 2024-2024 Subaru WRX TR, 2025-2025 Subaru WRX TS, 2015-2015 Subaru WRX STI Launch Edition, 2015-2021 Subaru WRX STI Base, 2015-2021 Subaru WRX STI Limited, 2016-2016 Subaru WRX STI Series.HyperBlue, 2018-2018 Subaru WRX STI Type RA, 2019-2019 Subaru WRX STI S209, 2013-2025 Subaru BRZ Premium, 2013-2025 Subaru BRZ Limited, 2015-2015 Subaru BRZ Series.Blue, 2016-2016 Subaru BRZ Series.HyperBlue, 2017-2017 Subaru BRZ Series.Yellow, 2018-2025 Subaru BRZ TS, 2019-2019 Subaru BRZ Series.Gray, 2017-2017 Toyota 86 Special Edition, 2017-2020 Toyota 86 Base, 2018-2020 Toyota 86 GT, 2019-2019 Toyota 86 TRD Special Edition, 2020-2020 Toyota 86 Hakone Edition, 2022-2025 Toyota GR86 Base, 2022-2025 Toyota GR86 Premium, 2023-2023 Toyota GR86 10th Anniversary Special Edition, 2024-2024 Toyota GR86 TRUENO Edition, 2025-2025 Toyota GR86 Hakone Edition and 2013-2016 Scion FR-S Base.
Shipping times vary by Manufacturer
(Can take days or weeks, contact us for an ETA)
Fitment:
| Years | Make | Model | Trim | ||
|---|---|---|---|---|---|
| 2015 - 2024 | Subaru | WRX | Base | ||
| 2015 - 2025 | Subaru | WRX | Limited | ||
| 2015 - 2025 | Subaru | WRX | Premium | ||
| 2022 - 2025 | Subaru | WRX | GT | ||
| 2024 - 2024 | Subaru | WRX | TR | ||
| 2025 - 2025 | Subaru | WRX | TS | ||
| 2015 - 2015 | Subaru | WRX STI | Launch Edition | ||
| 2015 - 2021 | Subaru | WRX STI | Base | ||
| 2015 - 2021 | Subaru | WRX STI | Limited | ||
| 2016 - 2016 | Subaru | WRX STI | Series.HyperBlue | ||
| 2018 - 2018 | Subaru | WRX STI | Type RA | ||
| 2019 - 2019 | Subaru | WRX STI | S209 | ||
| 2013 - 2019 | Subaru | BRZ | Premium | ||
| 2013 - 2020 | Subaru | BRZ | Limited | ||
| 2015 - 2015 | Subaru | BRZ | Series.Blue | ||
| 2016 - 2016 | Subaru | BRZ | Series.HyperBlue | ||
| 2017 - 2017 | Subaru | BRZ | Series.Yellow | ||
| 2018 - 2018 | Subaru | BRZ | TS | ||
| 2019 - 2019 | Subaru | BRZ | Series.Gray | ||
| 2020 - 2020 | Subaru | BRZ | TS | ||
| 2025 - 2025 | Subaru | BRZ | Limited | ||
| 2025 - 2025 | Subaru | BRZ | Premium | ||
| 2025 - 2025 | Subaru | BRZ | TS | ||
| 2017 - 2017 | Toyota | 86 | Special Edition | ||
| 2017 - 2020 | Toyota | 86 | Base | ||
| 2018 - 2020 | Toyota | 86 | GT | ||
| 2019 - 2019 | Toyota | 86 | TRD Special Edition | ||
| 2020 - 2020 | Toyota | 86 | Hakone Edition | ||
| 2022 - 2025 | Toyota | GR86 | Base | ||
| 2022 - 2025 | Toyota | GR86 | Premium | ||
| 2023 - 2023 | Toyota | GR86 | 10th Anniversary Special Edition | ||
| 2024 - 2024 | Toyota | GR86 | TRUENO Edition | ||
| 2025 - 2025 | Toyota | GR86 | Hakone Edition | ||
| 2013 - 2016 | Scion | FR-S | Base |
Description:
The SPL rear knuckle bushings replace the rubber factory knuckle bushing with a low friction PTFE-lined spherical bearing. Replacing the OEM rubber bushing eliminates deflection under heavy acceleration and braking loads that leads to unwanted geometry changes, and prevents binding by allowing the knuckle to smoothly articulate. The reduced deflection also translates to improved driver feedback from the tire and better overall response. We use the largest possible FK bearing, to increase longevity and reduce NVH, mounted in a 6061-T6 aluminum housing precision cut with +/- .001" tolerance to insure proper fitment. Benefits Lightweight: 0.674 lbs (306g) / 0.337 lbs (153g) per Side Improves Throttle and Braking Response Reduced Wheel Hop Maintenance-Free, US Made, PTFE-Lined FK Bearings Materials 6061-T6 Aluminum Bearing Shells Steel PTFE-lined FK Spherical Bearings
The SPL rear knuckle bushings replace the rubber factory knuckle bushing with a low friction PTFE-lined spherical bearing. Replacing the OEM rubber bushing eliminates deflection under heavy acceleration and braking loads that leads to unwanted geometry changes, and prevents binding by allowing the knuckle to smoothly articulate. The reduced deflection also translates to improved driver feedback from the tire and better overall response. We use the largest possible FK bearing, to increase longevity and reduce NVH, mounted in a 6061-T6 aluminum housing precision cut with +/- .001" tolerance to insure proper fitment.BenefitsLightweight: 0.674 lbs (306g) / 0.337 lbs (153g) per SideImproves Throttle and Braking ResponseReduced Wheel HopMaintenance-Free, US Made, PTFE-Lined FK BearingsMaterials6061-T6 Aluminum Bearing ShellsSteel PTFE-lined FK Spherical Bearings
Related Links:
13-16 Scion FR-S Suspension Arm Bushings13-20 Subaru BRZ Suspension Arm Bushings
15-20 Subaru WRX Suspension Arm Bushings
15-20 Subaru WRX STI Suspension Arm Bushings
15-20 Toyota 86 Suspension Arm Bushings
22-26 Toyota GR86 ZN8 Suspension Arm Bushings
Other Suspension Arm Bushings:
2022-2025 Subaru WRX GT
2019-2019 Subaru BRZ Series.Gray
2015-2015 Subaru BRZ Series.Blue
2022-2025 Subaru BRZ Premium
2013-2019 Subaru BRZ Premium
2022-2025 Subaru BRZ Limited
2013-2020 Subaru BRZ Limited
2015-2024 Subaru WRX Base
2011-2014 Subaru Impreza WRX STI Limited
2015-2025 Subaru WRX Limited
2015-2025 Subaru WRX Premium
2015-2021 Subaru WRX STI Base
2015-2015 Subaru WRX STI Launch Edition
2015-2021 Subaru WRX STI Limited
2019-2019 Subaru WRX STI S209
2016-2016 Subaru WRX STI Series.HyperBlue
2018-2018 Subaru WRX STI Type RA
2017-2017 Subaru BRZ Series.Yellow
2010-2010 Subaru Impreza WRX STI Special Edition
2008-2014 Subaru Impreza WRX STI
2009-2014 Subaru Impreza WRX Premium
2010-2014 Subaru Impreza WRX Limited
2008-2014 Subaru Impreza WRX
2012-2014 Subaru Impreza Sport Premium
2012-2014 Subaru Impreza Sport Limited
2012-2014 Subaru Impreza Premium
2008-2011 Subaru Impreza Outback Sport
2012-2014 Subaru Impreza Limited
2012-2014 Subaru Impreza Base
2010-2011 Subaru Impreza 2.5i Premium
2008-2011 Subaru Impreza 2.5i
2009-2010 Subaru Impreza 2.5 GT
2020-2020 Subaru BRZ TS
2018-2018 Subaru BRZ TS
2016-2016 Subaru BRZ Series.HyperBlue
2017-2020 Toyota 86 Base
2018-2020 Toyota 86 GT
2020-2020 Toyota 86 Hakone Edition
2017-2017 Toyota 86 Special Edition
2019-2019 Toyota 86 TRD Special Edition
2022-2023 Toyota GR86 Base
2022-2023 Toyota GR86 Premium
SHIPS FROM MANUFACTURER
(Last checked: 02/13/2026)
Shipping times vary by Manufacturer
(Can take days or weeks, contact us for an ETA)
2015-2015 Subaru WRX STI Launch Edition
2018-2018 Subaru WRX STI Type RA
2016-2016 Subaru WRX STI Series.HyperBlue
2019-2019 Subaru WRX STI S209
2013-2020 Subaru BRZ Limited
2022-2025 Subaru BRZ Limited
2013-2019 Subaru BRZ Premium
2022-2025 Subaru BRZ Premium
2015-2015 Subaru BRZ Series.Blue
2019-2019 Subaru BRZ Series.Gray
2017-2017 Subaru BRZ Series.Yellow
2015-2021 Subaru WRX STI Limited
2015-2021 Subaru WRX STI Base
2015-2025 Subaru WRX Premium
2015-2025 Subaru WRX Limited
2022-2025 Subaru WRX GT
2015-2024 Subaru WRX Base
2020-2020 Subaru BRZ TS
2018-2018 Subaru BRZ TS
2016-2016 Subaru BRZ Series.HyperBlue
2017-2020 Toyota 86 Base
2018-2020 Toyota 86 GT
2020-2020 Toyota 86 Hakone Edition
2017-2017 Toyota 86 Special Edition
2019-2019 Toyota 86 TRD Special Edition
2022-2023 Toyota GR86 Base
2022-2023 Toyota GR86 Premium

