Learn More. Sell More. Common Abbreviations Found on Northern’s Website ABBREVIATION DEFINITION " Inch 2WD 2 Wheel Drive 4WD 4 Wheel Drive A/C Air Conditioning AG Agriculture A/T Automatic Transmission ATV All-Terrain Vehicle AWD All Wheel Drive CBR Copper/Brass Radiator CAC Charge Air Cooler CONN Connection CYL Cylinder DIA Diameter EEC Evaporation Emission Control EOC Engine Oil Cooler EXC Except FI Fuel Injection FPI Fins Per Inch FWD Front Wheel Drive GAL Gallon GPM Gallons Per Minute HD Heavy Duty HP High Performance or Horse Power HRL Heater Return Line INCL Includes L Liter LBS Pounds LCI Low Coolant Indicator LWB Long Wheel Base M/T Manual Transmission MM Millimeter MIO Male Insert O-Ring NPT National Pipe Thread ORFS O-Ring Face Seal OE Original Equipment OHC Overhead Camshaft P/S Power Steering PLT Plate PT Pint PTO Power Take Off PTR Plastic Tank Radiator QT Quart ROV Roll Over Valve RWD Rear Wheel Drive SN Serial Number STD Standard SW Station Wagon SWB Short Wheel Base TOC Transmission Oil Cooler UTV Utility Task Vehicle VIN Vehicle Identification Number W/ With W/O Without Was this helpful? Frequently Asked Questions (FAQ) What if I have questions about my login or I need to remove a login from my account? Common Abbreviations Found on Northern’s Website I can’t log into my account, why is that? How do I search by an OEM number? How can I contact my local branch? How do I contact a salesman in my area? How do I know if my order was submitted and received properly? Suggested articles Northern Round Tube & Fin (RTF) Oil Coolers 101 Multi-Passenger Vehicle Product Guide Definitive Charge Air Cooler (CAC) Guide UTV Market Update NEW Performance Diesel Fans & Shrouds © Northern Factory Sales, Inc. 2020, All Rights Reserved. Home | Sign In | About Us | Contact Us © 2021 Northern Radiator | v2 Knowledge Management byelevio