Vehicle Fitment: Please check Amazon Fitment Filter and Description to see if this item will work on your vehicle before purchase. OE Number (Part Number and Reference Number): CP9Z-9F593-B, FJ1164, CM5E-BB, 825-11103. What needs to be replaced: If the vehicle has problems with erratic idling, poor acceleration, loss of power or engine shuddering, there may be a problem with the fuel injectors. High Quality Materials: Enhance your vehicle with our top-quality fuel injector. Made from corrosion-resistant composite material, it features high-temp viton o-rings for durability. Designed to OE specs, it ensures smooth engine performance, balanced fuel delivery, and reduced fuel consumption. Customer Support: NECATUO fuel injectors pack comes complete with a One year warranty.If the fuel injectors ever fails on your car,simply contact us for a replacement. Save time and money by taking advantage of this warranty. Size FJ1164 Brand Name NECATUO Unit Count 4.0 Count Valve Type Fuel Injector Manufacturer NECATUO Material Type Composite Exterior Finish Corrosion-Resistant Composite Material Number of Ports 8 Number of Pieces 4 Inlet Connection Type O-ring Outlet Connection Type Barb