Feature: 1) All parts are hand inspected off the line before packaging and once again by our team before shipment. 2) According to the original factory specifications. 3) Perfect match for the original car. 4) Easy installation. 5) Stable characteristics, high reliability. 6) Aftermarket Products with Premium Quality. Please check your part number or photos before purchasing ! Descriptions: - O-Rings Included: Yes, preinstalled - Injector Design: Metal & composite plastic - Orifice Type: 4 holes disc Manufacture Part Number: Replacement For 25313185 Interchange Part Number: Replacement For 25317671 25345324 171146145 83211178 17113794 Other Part Number: Replacement For FJ319 FJ10578 171137 4G1661 M883 832-11178 Fitment: 2004 Buick Rainer 4.2L 2002-2004 Chevrolet Trailblazer 4.2L 2002-2.