Racetech RT4129HRW Advanced Racing Seat

The Racetech RT4129HRW is a serious step up from a typical club racing shell. Built to satisfy FIA 8862-2009 Advanced Racing Seat standards, the 129 series is Racetech’s no-compromise professional motorsport seat for drivers and teams who need higher levels of strength, support and protection in fast cars. If the 4119 is an excellent containment seat for serious track use, the 4129 is the move when the car and the program demand more.

Why we like the RT4129HRW

• FIA 8862-2009 homologated advanced racing seat for higher level motorsport applications
• Integrated head restraint design for increased upper body and helmet area support
• Composite shell construction that balances strength, durability and weight
• HANS compatible with large harness guides and support for up to a 6-point harness
• Lower back air ducting built into the shell to improve driver cooling on long sessions
• Designed to work with Racetech side and back mounting hardware for a rigid, properly supported installation

Fitment and sizing

This listing covers the RT4129HRW standard shell. It is intended for drivers who want a serious containment seat with advanced homologation and a strong balance of support and comfort. Racetech also offers wider and taller variants in the 129 series, so as with any race seat, correct sizing matters. If you are unsure on fit, reach out and we can help walk through the sizing chart and intended use before ordering.

Installation notes

To achieve the intended level of protection and comply with FIA 8862-2009 requirements, the RT4129HRW must be back mounted in addition to side mounting. Make sure your harness angles, helmet clearance, seat height and steering position are all checked with the car at ride height before final drilling or welding. This is not a seat to install casually. It is designed to be part of a properly engineered safety system.