New piston ring seals for your Garrett T3, T4, T04B, T04E, TA31, TA0301 & TBP4 turbo. One (1) new stepped gap turbine shaft seal and one (1) standard compressor seal. The step gap seal provides a superior seal over the stock style turbine seal. Prevents residue build up from oil leaking through seal on to the turbine wheel and into the exhaust system. (Step Gap turbine seal replace oem stock seal p/n 408049-0009). Excellent quality parts. Buyer pays $1.25 shipping within the USA. Shipping cost to Canada is $6.50. Shipping cost to UK, Australia & all other countries is $11.80. Paypal accepted.