Fuel Injector for Cummins Diesel Engine QSK19 QSK38 QSK50 Y431K05392. Package includes: 1pc fuel injector. For Cummins Diesel QSK19 QSK38 QSK50. Bad weather or peak season will lead a delay. Please send item back in original package (new and un-used, accessories included). We strive to provide 5-star customer service! We will work out a solution and get back to you as soon as possible. Your understanding is highly appreciated, thank you!