KYB
Strut-Plus

KYB SR4578 Suspension Strut and Coil Spring Assembly - Front Right

Brand KYB 121.61022
ABS Tone Ring Included No
Bearings Included No
Center Hole Diameter 2.539
Center Hole Diameter 64.500
Disc Mounting [cntrc] Floating
Discard Thickness 0.974
Discard Thickness 24.750
Misc Holes [cntrc] 0
Mounting Bolt Hole Circle Diameter 4.252
Mounting Bolt Hole Circle Diameter 108.000
Nominal Thickness 1.024
Nominal Thickness 26.000
Outside Diameter 10.157
Outside Diameter 258.000
Overall Height 1.917
Overall Height 48.700
Solid Or Vented Type Rotor Vented
Stud/Lug Hole Diameter 0.583
Stud/Lug Hole Diameter 14.800
Stud/Lug Hole Quantity 5
Surface Type Smooth
Vane Style [cntrc] Straight
Weight [cntrc] kgs 5.680
Weight [cntrc] lbs 12.500
Product line Strut-Plus
Fits —14 vehicles

OE restoring assembly. Pre-assembled for professional results and exact fitment.

Precision damping valves. Application-specific tuning helps restore handling and control.

High carbon steel springs. Built to help restore ride height within OE specifications.

$191.27Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Suspension Strut and Coil Spring Assemblys are typically replaced in pairs, axle by axle.
Order total $191.27
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

KYB Strut-Plus Front Right for Nissan LEAF

The KYB Strut-Plus SR4578 is a front right suspension strut and coil spring assembly for the Nissan LEAF. Built for 2011-2024 Nissan LEAF applications, it is engineered to restore ride height, handling response, and steering control with an exact-fit, pre-assembled design.

Key Features

  • OE-style replacement choice for Asian vehicles
  • Includes a KYB Excel-G strut, a stronger steel outer shell, and application-specific damping valves
  • Pre-assembled for professional installation and exact fitment
  • High-carbon steel coil spring is matched to vehicle attributes and corner weights to help restore OE ride height
  • Engineered to help vehicles with electronic safety systems such as ESC and ABS
  • Recognized with a 2018 industry award in the import aftermarket category

Product Details

KYB SR4578 is part of the Strut-Plus line, a product family focused on complete suspension strut and coil spring assemblies that restore original ride characteristics. For the Nissan LEAF, this assembly combines KYB damping technology with a vehicle-specific spring rate to support consistent front-end geometry, steering pivot function, and stability. It is a direct-fit solution for front right service on 2011-2019 Nissan LEAF and 2020-2024 Nissan LEAF models.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

  • Front-end sag or reduced ride height
  • Excessive bounce, harshness, or poor damping control
  • Loose steering feel or reduced directional stability
  • Uneven suspension response after strut wear
  • Service needs on Nissan LEAF front right suspension assemblies

Installation Notes and Tips

  • Fits 2020-2024 Nissan LEAF, front right.
  • Fits 2011-2019 Nissan LEAF, front right.
  • Follow the vehicle manufacturer’s service procedure for strut and spring replacement.
  • After installation, verify ride height, steering wheel center, and front-end alignment.
  • Because this is a pre-assembled strut and coil spring assembly, it is intended for direct replacement of the front right suspension unit.

Quality Assurance

KYB is an original equipment supplier, and the Strut-Plus SR4578 is engineered to restore handling and control characteristics using OE-focused damping and spring specifications. The design also considers vehicles equipped with electronic stability and braking systems.

This part fits 14 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2024NissanLEAFFront RightRecommended OEM Replacement; Strut-Plus
2023NissanLEAFFront RightRecommended OEM Replacement; Strut-Plus
2022NissanLEAFFront RightRecommended OEM Replacement; Strut-Plus
2021NissanLEAFFront RightRecommended OEM Replacement; Strut-Plus
2020NissanLEAFFront RightRecommended OEM Replacement; Strut-Plus
2019NissanLEAFFront RightReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Strut-Plus
2018NissanLEAFFront RightReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Strut-Plus
2017NissanLEAFFront RightReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Strut-Plus
2016NissanLEAFFront RightReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Strut-Plus
2015NissanLEAFFront RightReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Strut-Plus
2014NissanLEAFFront RightReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Strut-Plus
2013NissanLEAFFront RightReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Strut-Plus
2012NissanLEAFFront RightReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Strut-Plus
2011NissanLEAFFront RightReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Strut-Plus