Part Number: 4W7017, 4W-7017, 4W 7017 8N7007, 8N-7007, 8N 7007 0R3421, 0R-3421, 0R 3421 OR3421, OR-3421, OR 3421 Fitment: 1970-2012 Caterpillar All Models 3406B Engine - For Caterpillar Part No. 4W7017 1970-2012 Caterpillar All Models 3406B Engine - For Caterpillar Part No. OR3421 All injectors are serviced as stated below: OHM Tested for electrical shorts Disassembled and externally cleaned Checked for any major cosmetic damage Internally cleaned via numerous ultrasonic baths using special non-hazardous solutions. Back-flushed to remove any internal debris (multi-step process) Pressure/Leak tested, Spray/Flow Tested Flow matched using the very latest in fuel injection calibrating technology Carefully packaged to ensure safe arrival The buyer is responsible for ensuring part compatibili.
