Fuel injector assembly valve assembly F00RJ01941 common rail injector suitable Fit For Cummins QSB4.5 QSB6.7 OEM NO: 0445120253 Made of high quality material, durable, for long time use. Easy to install and durable to use，Direct Replacement for a Proper fit and Easy Installation。 ‌Fuel injection system installation‌ on motorcycles requires a secure seal between the injector and intake manifold to prevent fuel leaks or air ingress. Always disconnect the battery negative terminal and relieve fuel pressure before installation to ensure safety., Manufacturer: KNZVUUY