Buying a steel seat is not the same as buying a gasket or a filter. A seat is a structural component that becomes the datum of the assembly it is fitted to, so a purchasing decision that saves a few cents per piece can cost far more at the assembly line if th...

Rebound Bumper Wholesale: A Practical Buying Guide for Distributors and Fleet Purchasers The first four parts of this series covered what a rebound bumper does, how to detect wear, how the part is manufactured and how it is installed. This fifth part turns to...

Piggyback shocks sometimes have an internal floating piston that separates oil and nitrogen. But more commonly, a rubber bladder reservoir holds the gas separately. This air bag tank is less likely to leak than a separate piston seal.Main features:Ensure oil ...

Buying a Small Part With a Large Effect The source row describes a piston ring, also called a piston band, fitted in the annular groove on the outer circumference of the shock absorber piston and reciprocating with the piston inside the working cylinder. Its ...

A spring seat, also called a spring isolator or spring spacer, is located on the exterior of the shock absorber body or at the upper end of the piston rod. It positions and supports the suspension coil spring, normally in contact with the lower or the upper e...

A dust cover, also called a shock dust boot, dust shield or strut bellows, is installed externally on the shock absorber piston rod, positioned above the oil seal. Its upper end mates with the piston rod and its lower end mates with the reservoir cylinder or ...

Sourcing Piston Rods for Resale and Rebuild The source row describes a shock piston rod as the moving component of a damper, connected to the piston assembly inside the cylinder and passing through the oil seal and guide seat to the vehicle body or suspension...

What the Buyer Is Actually Buying A steel shim, also called a valve shim or shock shim, is installed inside the shock absorber piston assembly, positioned in the piston valve system or base valve system, and works together with valve seats, springs and orific...

Sourcing Cabin Buffers for Fleets and Distributors The cabin buffer listed in the Bonpora source row is an elastic component, typically made from high-elasticity polyurethane, installed between the truck cab and the chassis frame. It performs the same functio...

Sourcing Off-Road Jounce Bumpers The jounce bumper described in the Bonpora source row is an elastic component typically made of high-elasticity polyurethane using MDI or NDI chemistry. It is installed in the suspension damper of off-road vehicles, including ...