KYB Suspension Strut Bellows P/N:SB146
Help shield your struts from grit and road salt with the KYB strut bellow, part number SB103, a jounce bumper and bellows kit that covers the strut shaft and cushions suspension travel. It fits many vehicles, among them the 1975-1987 Honda Civic, 1988-2002 Toyota Corolla and 1993-2001 Nissan Altima. See the Buyer's Guide tab for the full list. It is cataloged for front and rear positions, including front left, depending on the application.
Dirt, dust, sand, salt and other road debris cause abrasive wear to a strut's polished shaft, upper seal and bushing. This KYB kit wraps the entire strut shaft in a highly durable plastic bellows that helps keep those contaminants out of the strut. KYB notes this can extend the life of the strut.
Signs this suspension strut bellow may need replacing include a cracked, split or missing boot, grime built up on the strut shaft, or a bumper that has crumbled or broken apart. Check the boot and bumper whenever the struts are serviced.
Interchange: 143059 · 63620
This part cross-references / interchanges with the following part numbers:
What does the KYB SB103 strut bellow do?
It covers the entire strut shaft with a plastic bellows. This helps keep dirt, dust, sand, salt and road debris away from the polished shaft, upper seal and bushing.
What is included in the KYB SB103 kit?
The kit pairs the protective plastic bellows with a poly foam travel-limiting jounce bumper.
What does the jounce bumper do?
The poly foam bumper limits strut travel. It is designed to protect the strut from bottoming out and to protect other components from damage caused by extreme movement.
Does it fit my 1975-1987 Honda Civic or 1988-2002 Toyota Corolla?
It is listed for the 1975-1987 Honda Civic and the 1988-2002 Toyota Corolla, along with many other vehicles. Check the Buyer's Guide tab for your exact vehicle and position.
When should I replace a strut boot and bumper?
Signs they may need replacing include a cracked, torn or missing boot, a dirty strut shaft, or a crumbled bumper. It is also worth checking them whenever the struts are replaced.
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.