My oldest DB is v456, and the newest one without the issue is v478 (that I have). 2007 international 4300 with dt466 - fuel system issues 2007 International 4300 with DT466 - fuel system issues ; but is the Return Check Valve not at the bottom or the side of the fuel filter?. Aug 07, 2005 #8. well theres lots of things to check on these engines, first thing we do in our shop when diagnosing a lack of power symptom is. 1. check your fuel pressure with a load on, hook up your fuel gauge and run it on the road, monitor the gauge and check > if it holds a consistent psi., if it falls you might have a restriction, remove. HOUSING , FUEL FILTER : 1: 1838681C1 HEATER, FUEL : 1: 1831182C2 SCREW, THREAD FORMING #8: 2: 1831208C1 TUBE, CLEAN FUEL RETURN: 1: 1831181C1 MANUAL, FILTER HOUSING INSTRUCTION: 1: 1840758C1 About Navistar International® Parts. A leader in commercial trucks and parts since 1902, Navistar International® always designs its parts with the driver in. Fuel Drain Valve For EGR DT466. $ 31.78. 2 in stock (can be backordered) Buy now. — OR —. Add to cart. SKU: 1842642C91. Description. Additional Information. Dt466e fuel check valve This item: Tepeng Fuel Injection Pressure Regulator IPR Valve Compatible with Navistar International Truck DT466 DT466E DT570 HT570,Replace part #1842428C98. $51.99. In Stock. Sold by Tepeng Powersport and ships from Amazon Fulfillment. Get. lua table syntax spin glove slap battles wiki August 19, 2020 ⋅ 11 min read.