Upgrade your Cummins B3.3 or QSB3.3 diesel engine with this lot of four fuel injectors. These injectors are a direct replacement for part number C4089877, C6204113500, 4089877, and 4089877C. They come with a silver male connector and are designed to fit perfectly into your system. The package includes two O-rings and two seals, so you can complete the installation without any hassle. These injectors are manufactured in China and weigh 8 ounces. They are not a performance part, but they will ensure that your engine runs smoothly. Order now and enjoy a hassle-free installation with these reliable fuel injectors.