KYB Suspension Strut and Coil Spring Assembly P/N:SR4185
Help restore proper ride height and factory handling with the KYB strut plus Strut and Coil Spring Assembly (MPN SR4608), a complete front-left corner unit that pre-assembles the KYB Excel-G strut, upper mount and coil spring for a bolt-in installation. It's engineered as a direct-fit replacement for the 2008-2015 Scion xB, and because KYB uses left- and right-specific part numbers with side-specific design and components, this assembly is built for the FRONT LEFT position as the vehicle manufacturer intended.
This complete strut and coil spring assembly starts with an OE-Restoring KYB strut and pairs it with an application-engineered spring so the strut handles vehicle weight, sets ride height, acts as the steering pivot and helps control stability.
Interchange: 172671
This part cross-references / interchanges with the following part numbers:
What is the KYB Strut-Plus complete strut and coil spring assembly?
It's a pre-assembled front corner unit combining the KYB Excel-G strut, upper mount and coil spring, so you replace the whole unit rather than assembling separate parts.
Does this KYB complete struts assembly fit my Scion xB?
Yes. SR4608 is engineered as a direct-fit replacement for the 2008-2015 Scion xB. See the Buyer's Guide tab to confirm your exact configuration.
Which position is this KYB front strut assembly for?
The catalog lists SR4608 for the FRONT LEFT position. KYB uses side-specific part numbers, so order the matching part number for the opposite side if needed.
What kind of spring does this KYB quick strut assembly use?
It uses a high-carbon steel coil spring, developed around the vehicle's attributes and corner weights to help keep ride height within OE specifications.
What are signs I may need a new strut assembly?
Common signs include a bouncy or unstable ride, uneven tire wear, nose-diving under braking, or knocking over bumps. Diagnose the cause before replacing, as other parts can share these symptoms.
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.