Racetech 339 Stockcar Seat (RT4339WTHR) — Fast Lane Spares Skip to content
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Racetech 339 Stockcar Seat (RT4339WTHR)

Designed for NZ Stockcar & Superstock Racing
SKU: RT4339WTHR-110
Original price $3,477.40 - Original price $3,477.40
Original price
$3,477.40
$3,477.40 - $3,477.40
Current price $3,477.40
+ GST

Stock Status / Availability

This item may not be kept in physical stock, in some instances item will be shipped direct from supplier.

Please contact us prior to purchasing if you would like an accurate ETA.

NZ Stockcar and Superstock Seat

Our RT4339 is made from a carbon-reinforced fibreglass shell structure and mated with a massive 75mm of high-impact energy-absorbing (SFI Approved) foam and 25mm of energy-absorbing comfort foam to achieve a full 100mm foam containment solution with an emphasis on head protection. These materials and their dimensions are currently used for the same application in NASCAR seats. The shell structure of the 339 is built similarly to our 129 series which has surpassed simulated impacts of more than 14kN to the pelvis, 11kN to the shoulder and 7kN to the head. Click here to download seat mounting instructions for Speedway NZ use.

Features and Benefits:

  • Carbon-reinforced fibreglass shell
  • Square shoulders and head restraint reduce body acceleration in a side or oblique impact
  • Massive 100mm of high-impact energy-absorbing foam on each side of the driver’s head
  • Energy-absorbing foam in the rib, shoulder and head area
  • Upgraded geometry (vs Viper series) for ergonomic comfort
  • 3 threaded bosses in the shoulder beam for rigid fixing to the roll cage
  • Frontal Head Restraint (FHR) compatible
  • Large harness guides for an ideal belt position
  • Removable base and back cushion for customising your fit
  • 1 size: Wide-Tall (WTHR) with fitment cushions available
  • 2 x drain holes in the bottom rear of the seat
  • Fitment - Direct replacement for RT4229WTHR