Yokomo S4-S18213? 13mm Shock Piston Set for SOR-020 Series  [S4-S18213?]

Yokomo S4-S18213? 13Shock Piston 1.8x2x2.0mmfor SO/MO2.0
Price:
CAD$9.64
Brand:
Yokomo
Model:
S4-S18213?
GTIN:
639342221943
Condition:
Brand New
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Fine-Tune Suspension with Yokomo S4-S18213? Pistons

For hobbyists focused on setup and lap time, the Yokomo S4-S18213? shock piston set is built for precision. Made for SOR-020 and SOR-020D chassis, the pistons use dual 1.8mm ports and a 2.0mm plate thickness to give consistent oil flow and tighter damping control on paved circuits.

Main Benefits for Setup and Handling

  • Compatibility: Engineered to suit SOR-020 and SOR-020D chassis.
  • Precision Design: Twin 1.8mm holes for controlled damper response.
  • Durability: Constructed from quality materials for regular use and track sessions.
  • Easy Installation: Supplied as a pair for straightforward replacement and testing.
Remark :
Due to limited stock availability, please notice that some Yokomo items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

What shock oil weight pairs well with 1.8mm ports?

Lighter oils give quicker response while heavier oils slow movement; start with a mid-range viscosity and adjust based on rebound and corner grip.

How difficult is it to fit the S4-S18213? pistons?

Installation is standard for 13mm shock bodies: remove the shock head, swap pistons and reassemble, taking care to avoid trapping air pockets in the oil.

Can these pistons be used on other chassis types?

They are tailored for SOR-020 and SOR-020D, but may fit other 13mm shock setups with the same internal dimensions; verify fit before running.

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