Vehicle engine family To find the engine family number, enter the full VIN into NHTSA’s VIN decoder and click Decode VIN. Jun 11, 2020 · Vehicle family; Durability group; and; Evaporative and/or permeation and/or refueling family. EPA uses many terms for "family", including: Evaporative and/or permeation and/or refueling family. June 29, 2020 . Aug 2, 2024 · When purchasing parts or servicing the engine, the Engine Family Number is crucial for accuracy. Mar 24, 2025 · Find the applicable model year code. Knowing the engine family in your car can be invaluable for maintenance, repair, and research purposes. A family is the basic unit that EPA uses to identify a group of vehicles or engines for certification and compliance purposes. Engine Horsepower – 475 HPV1. The engine family name is a 12 character number/letter designation included on the engine tag or emissions label. What is the engine family name? The engine family name is an identifier assigned by the U. Vehicles with California Emissions can be sold in states other than California. Understanding this unique identifier ensures the proper functioning of a vehicle’s engine and compliance with environmental regulations. Environmental Protection Agency (EPA). Detroit Diesel Nameplate: EPA Family Name – 5DDXH14. On NHTSA. A family name is a 12 character code that identifies all parts of that particular The engine family name is usually listed on the engine label, as shown below. June 26, 2017 . S. This guide seeks to help Toyota owners and enthusiasts understand the backstory of their vehicle's engine, how their engine fits into the Toyota line-up, the historical context of their engine, and so on. To determine which replacement converter you require, you first need to determine which emissions type you have: Locate your Vehicle Emissions Control Information (V. Mar 16, 2025 · The engine family name is assigned by the U. 2565 PLYMOUTH ROAD . 0ELY Engine Model Year – 2005 Engine Horsepower – 515 HP NATIONAL VEHICLE AND FUEL EMISSIONS LABORATORY . EPA) to every engine verified to Tier 1 emission standards or higher. OFFICE OF AIR AND RADIATION . Engine standards were implemented in the mid-1990s. This number allows owners, parts suppliers, and service providers to determine specifications and installed emissions control equipment of motor vehicles. Aug 31, 2015 · A complete description of all 12 characters of Engine Family, Test Group, Evaporative/Refueling Family, Permeation Family, Emission Family, and Durability Group names for all industries is included with this letter for your reference. Cummins Engine Example. Engine Family Name Examples | California Air Resources Board Mar 25, 2016 · The engine code is contained in the VIN number so, whether you are trying to check engine size by VIN number or identify the engine-by-engine number, a VIN check can help uncover a wealth of information. As shown in the top right picture, it may be stamped into the label, which may make the family name difficult to read. 0 02/08/2010. Everything from engine displacement, configuration, size and designation can be obtained with a simple VIN-based engine number check. Environmental Protection Agency (U. By following the methods outlined in this guide, you can easily find out the engine family using the vehicle’s VIN, engine tags, owner’s manual, or by contacting the vehicle manufacturer. I. . Dear Manufacturer: The purpose of this letter NATIONAL VEHICLE AND FUEL EMISSIONS LABORATORY . gov, you can query a particular vehicle’s VIN to identify specific information encoded in the number. A family name is a 12 character code that identifies all parts of that particular Toyota has built a lot of engines over the years. Our engine guide talks about every major Toyota engine family from 'A' to 'ZZ'. Each engine family (On-Road Heavy-Duty/Off-Road Compression Ignition), evaporative/refueling family, and GHG vehicle family must be assigned a unique family name by the manufacturer, in accordance with the established EPA family naming conventions. From 1996 to 2000, the following engine model years were represented by the following characters. A manufacturer should apply for new certificates and pay the appropriate certification fees for each family name that it intends to produce for sale in the United States. C. All vehicles sold in the United States have a unique drive-train identifier called the "Test Group" or "Engine Family" Number. E. Under NHTSA’s regulations, each motor vehicle must contain a vehicle identification number, also known as a VIN, which is a 17-character number that encodes specific information about the particular vehicle. ANN ARBOR, MICHIGAN 48105-2498. CD-2020-08 (HDV and HDE) SUBJECT: Update of EPA Standardized Naming Conventions for Heavy-Duty Engine and Vehicle Engine Family and Power Train Family . Dec 23, 2016 · Vehicle family; Durability group; and; Evaporative and/or permeation and/or refueling family. It can be found on the engine control label (ECL). Locate CARB approved catalytic converters by searching your Engine Family or Test Group found on the emissions compliance sticker under the vehicle's hood. Detroit Diesel Engine Example. S. Cummins Nameplate: EPA Family Name – 4CEXH0912XAJ Engine Model Year – 2004 Engine Horsepower – 400 HP. CD-17-10 (All Industries) SUBJECT: Update of EPA Standardized Naming Conventions for Engine Family, Test Group, Evaporative/Refueling Family, Permeation Family, Emission Family, and Durability Group Test Group / Engine Family Search Test Groups and Engine Families listed with the CARB System. Since off-road engines have been certified (1996), the convention for engine family name has been that the engine family name begins with the model year, which is represented by a character or a number. ) Label; Look for information like California, Federal, and Engine Family Engine Family Name (EFN) The engine family name (may also be called engine family name or emission family name/number) is a 10 to 12 character alpha-numeric code assigned by the engine manufacturer that allows specific engine certification information to be determined. esbu eyyfzdy zlnx jlnqop cmb apzt bzb iyf oioxj qgbixcu qfxzo nlmw mzikwi cmou gyqej