{"id":757,"date":"2026-10-23T12:43:46","date_gmt":"2026-10-23T12:43:46","guid":{"rendered":"https:\/\/www.way.com\/auto-repair-software\/?p=757"},"modified":"2026-10-26T04:39:19","modified_gmt":"2026-10-26T04:39:19","slug":"engine-serial-number-search-how-to","status":"publish","type":"post","link":"https:\/\/www.way.com\/auto-repair-software\/guide\/engine-serial-number-search-how-to\/","title":{"rendered":"Engine serial number search: How to find the engine number on 10 common engines"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Have you ever ordered a part using your customer\u2019s VIN, waited a couple of days for it to arrive, and then watched with dismay as it refused to go on? It\u2019s happened to the best of us, and telling the customer they need to wait another day is never fun. The VIN tells you which car you\u2019re working on, but not always the exact engine version under the hood. This guide explains where to find the number stamped on the engine and how an engine serial number search can help you avoid placing yet another parts order.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How many engine numbers are there?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">There are 4 types of engine numbers, which is probably why they can get a little mixed up now and then. We\u2019re listing them out so there\u2019s no confusion.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Engine serial number:<\/strong> This is unique to that one engine, typically has 7 to 17 characters (numbers and letters), and this is what we\u2019ll get into more detail about later on.<\/li>\n\n\n\n<li><strong>Engine ID:<\/strong> This one\u2019s a tag or a label number that describes how that engine was built. Ford diesels have a 7-digit engine ID, which is why people can sometimes confuse that for an engine serial number.<\/li>\n\n\n\n<li><strong>Casting number:<\/strong> This belongs to the block casting these engines and is shared by several thousand of them. It therefore should not be used to identify the engine, even if it is raised and easy to read.<\/li>\n\n\n\n<li><strong>Engine code:<\/strong> Not to be confused with the Diagnostic Trouble Code (DTC), this is an engine identification code that defines the physical build of the motor. This can also be used for ordering correct replacement parts (gaskets, timing belts, spark plugs).<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What is the difference between an engine code and an engine serial number?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Think of your phone for a second. When someone says they have an iPhone 16 Pro Max, you know exactly what kind of phone it is (the screen, the camera, the storage options), but so do about a few million other people, because they all have the very same model. The IMEI number, on the other hand, belongs to your phone and nobody else\u2019s. Engines work pretty much the same way!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>engine code<\/strong> is the model name of the engine, like 2GR-FE. It tells you the family, the displacement, and how the engine is built, and it is shared by every engine of that type, which is why it\u2019s the thing you use to narrow down parts. The <strong>engine serial number<\/strong> is the one that belongs to the single engine in front of you, and nobody else\u2019s engine has the same one.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><\/td><td><strong>Engine code<\/strong><\/td><td><strong>Engine serial number<\/strong><\/td><\/tr><tr><td><strong>What it is<\/strong><\/td><td>The model or family name of the engine<\/td><td>A sequence number given to that one engine<\/td><\/tr><tr><td><strong>Is it unique?<\/strong><\/td><td>No, a lot of cars share the same code<\/td><td>Yes, no two engines from the same maker get the same number<\/td><\/tr><tr><td><strong>What it tells you<\/strong><\/td><td>The engine\u2019s basic specs (size, cylinders, fuel type)<\/td><td>The individual engine, and on some makes, where and when it was built<\/td><\/tr><tr><td><strong>What you use it for<\/strong><\/td><td>Narrowing down the right parts family<\/td><td>Telling similar versions apart, checking recalls and keeping a record on the repair order<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">On a Toyota, the two even show up together, because the serial number starts with the engine code (2GR, then a hyphen, then a plant code from 1 to 9, then six digits). So the code gets you to the right family, and the serial number gets you to the right engine within it.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">How to use this guide<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Find your engine in the table. Look at the year range in the Fits column, as some engines fit multiple models. The years are important. Next, locate where the number is stamped by reading across. The last column shows the source of the information so you can verify it yourself. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pro tip: To make a worn stamp readable, hold a flashlight flat against the block.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Where to find the engine serial number in 10 of the most common vehicles<\/h3>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th>Make<\/th><th>Engine<\/th><th>Fits<\/th><th>Where the number is stamped<\/th><th>Watch for<\/th><th>Source<\/th><\/tr><\/thead><tbody><tr><td>Ford<\/td><td>6.0L Power Stroke<\/td><td>F-250 and F-350 2003 to 2007, Excursion 2003 to 2005, vans 2003 to 2009<\/td><td>On the block, driver\u2019s side, rear (also on a label on the FICM)<\/td><td>Grime on the block, and a rebuilt FICM loses its label<\/td><td><a href=\"https:\/\/www.ford-trucks.com\/forums\/1055392-engine-serial-number.html\" target=\"_blank\" rel=\"noopener\">Ford Truck Enthusiasts<\/a> (forum)<\/td><\/tr><tr><td>Ford<\/td><td>7.3L Power Stroke<\/td><td>Power Stroke trucks, 1994.5 to 2003<\/td><td>Rear oil cooler pad, driver\u2019s side rear, where the oil filter assembly mounts<\/td><td>The oil filter assembly<\/td><td><a href=\"https:\/\/dieselexperts.net\/ford-engines\/7-3-powerstroke\/\" target=\"_blank\" rel=\"noopener\">Diesel Experts<\/a> (parts supplier)<\/td><\/tr><tr><td>GM<\/td><td>5.3L V8<\/td><td>Silverado 1500 and Sierra 1500, 2014 to 2018<\/td><td>\u201cEngine Traceability\u201d label on the rear of the left cylinder head, or lower right of the block, right behind the A\/C compressor<\/td><td>The A\/C compressor, if the label is on the block<\/td><td><a href=\"https:\/\/www.gm-trucks.com\/forums\/topic\/198466-53-made-in\/\" target=\"_blank\" rel=\"noopener\">GM-Trucks<\/a> (forum, one poster)<\/td><\/tr><tr><td>Honda<\/td><td>CR-V<\/td><td>CR-V 2006 to 2011<\/td><td>Stamped into the front of the block<\/td><td>&#8211;<\/td><td><a href=\"https:\/\/www.hcrv.net\/identification_numbers-1579.html\" target=\"_blank\" rel=\"noopener\">Honda owner\u2019s manual via hcrv.net<\/a> (manufacturer)<\/td><\/tr><tr><td>Toyota<\/td><td>1GR-FE 4.0L<\/td><td>4Runner 2003 to 2010, FJ Cruiser 2007 to 2010, Tacoma and Tundra 2005 to 2010<\/td><td>Right side of the block, toward the rear<\/td><td>&#8211;<\/td><td><a href=\"https:\/\/attachments.priuschat.com\/attachment-files\/2015\/10\/96266_T-SB-0301-08.pdf\" target=\"_blank\" rel=\"noopener\">Toyota bulletin T-SB-0301-08<\/a> (manufacturer)<\/td><\/tr><tr><td>Toyota<\/td><td>2AR-FE 2.5L<\/td><td>RAV4 2009 to 2010<\/td><td>Left rear of the block<\/td><td>&#8211;<\/td><td>Same bulletin as above<\/td><\/tr><tr><td>Toyota<\/td><td>2AZ-FE 2.4L<\/td><td>Camry 2002 to 2009, RAV4 2004 to 2008, Solara 2004 to 2008<\/td><td>Left rear of the block, to the right of the exhaust manifold<\/td><td>The exhaust manifold runs hot, so let it cool<\/td><td>Same bulletin<\/td><\/tr><tr><td>Toyota<\/td><td>2GR-FE 3.5L<\/td><td>Avalon 2005 to 2010, Camry 2007 to 2010, Highlander 2008 to 2010, RAV4 2006 to 2010, Sienna 2007 to 2010, Venza 2009 to 2010<\/td><td>Left side of the block, toward the rear<\/td><td>&#8211;<\/td><td>Same bulletin<\/td><\/tr><tr><td>Toyota<\/td><td>2TR-FE 2.7L<\/td><td>Tacoma 2005 to 2010, 4Runner 2010<\/td><td>Left side of the block, toward the rear<\/td><td>&#8211;<\/td><td>Same bulletin<\/td><\/tr><tr><td>Toyota<\/td><td>2ZR-FE 1.8L<\/td><td>Corolla and Matrix 2009 to 2010<\/td><td>Right front of the block<\/td><td>&#8211;<\/td><td>Same bulletin<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">To read serial numbers from different vehicles:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>For Toyota, the serial number includes the engine code, a hyphen, a plant code (which is a number from 1 to 9), and then six digits. An example is 2GR-1######.<\/li>\n\n\n\n<li>For a 7.3L Power Stroke engine, the format starts with 7.3, followed by a 4-digit manufacturing identifier, and then a 6-digit build number.<\/li>\n\n\n\n<li>On GM labels, the first two digits in the bottom row indicate the plant.<\/li>\n\n\n\n<li>In Honda, the top line shows the specific engine family, design, and version. The bottom line contains a serial number that tracks each engine unit in production.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Note: <\/strong>Toyota\u2019s bulletin doesn\u2019t specify whether to look from the driver\u2019s seat or from the front of the engine, so check the drawing the first time you use any of these.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What does the serial number tell you about the part you need?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">It tells you which version of a part fits. Some engines changed partway through a model year, and the VIN can\u2019t show you which version you have.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Here is an example from <a href=\"https:\/\/parts.ford.com\/content\/dam\/ford-parts\/resources\/powertrainpdf\/Diesel_Engine_6_0L_Studded.pdf\" target=\"_blank\" rel=\"noopener\">Ford\u2019s parts sheet for the 6.0L Power Stroke<\/a>. It covers an F-250 or F-550 with an automatic, 2005 to 2006.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Engine serial number<\/th><th>Part to order<\/th><\/tr><\/thead><tbody><tr><td>6,429,302 to 6,723,721<\/td><td>5C3Z-6007-DARM<\/td><\/tr><tr><td>6,723,722 and up<\/td><td>6C3Z-6007-BARM<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Both trucks are the same model and year. Only the serial number tells you which part goes on.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Running an engine serial number search<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Where you search depends on the make, and some of it costs money. This is what we found:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Source<\/th><th>What you can do<\/th><th>Cost<\/th><\/tr><\/thead><tbody><tr><td>Toyota TIS (through Snap-on)<\/td><td>Toyota service information<\/td><td>Standard $25 for 2 days, $95 a month or $505 a year; Professional Diagnostic $70 for 2 days or $1,360 a year [Check: whether TIS searches by engine serial number, and current prices, before publishing]<\/td><\/tr><tr><td>Honda owner\u2019s manuals<\/td><td>Older manuals are online at techinfo.honda.com<\/td><td>Free<\/td><\/tr><tr><td>Ford parts sheets<\/td><td>Some Power Stroke parts sheets list parts by serial number range<\/td><td>Free<\/td><\/tr><tr><td>Parts counters<\/td><td>Many will look up a part if you read them the number<\/td><td>Free to ask<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">When your engine serial number search comes up empty<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Three things cause it: the stamp is worn, grime covers the area, or someone painted over it. Start with a degreaser and a soft brush, and use a plastic scraper on paint, because steel tools and wire wheels chew up the digits you need. Hold a flashlight flat against the surface so the stamped edges throw shadows, and take a photo, since a phone camera often reads a worn stamp better than your eyes. If the number is gone, go back to the VIN, take the engine code from its 8th character, and ask a dealer to look up the original build from the VIN.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What about rebuilt, reman, and swapped engines?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The number on the block may not match the car, so read it off the engine in front of you, not the paperwork. A remanufactured Subaru short block carries its own yellow-tag serial number, and Subaru\u2019s bulletin tells you to ignore the case-half numbers. A replacement engine arrives with its own number. In the Kia recall, the dealer breaks off the starter mount tab that carries the original serial number and sends it back with the core.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What do you do with the result?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Match your parts to the number first. Then check recalls and warranty (Toyota asks for the engine serial number on its Field Technical Reports). Then write the number on the repair order, so the next tech doesn\u2019t have to hunt for it!<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">A one-page checklist for the parts counter<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Customer\u2019s VIN written down<\/li>\n\n\n\n<li>Engine code from the 8th character of the VIN<\/li>\n\n\n\n<li>Engine serial number read off the engine itself<\/li>\n\n\n\n<li>Year range checked against the entry<\/li>\n\n\n\n<li>Mid-year changes checked<\/li>\n\n\n\n<li>Cleaned and photographed if the stamp is hard to read<\/li>\n\n\n\n<li>Reman or swap ruled in or out<\/li>\n\n\n\n<li>Recalls and warranty checked<\/li>\n\n\n\n<li>Number written on the repair order<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">What if your engine isn\u2019t on the list?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Send us the make, model, year, and engine code at repair@way.com, and we\u2019ll look into adding it.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.way.com\/auto-repair-software\/schedule-demo\/\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"373\" src=\"https:\/\/assets.repairtech.way.com\/2026\/09\/shop-management-software-way-repair-tech-1024x373.png\" alt=\"shop management software way repair tech\" class=\"wp-image-571\"\/><\/a><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ordered a part off the VIN and it didn\u2019t fit? The engine serial number tells you which version of the engine is under the hood. Here is where to find it on 15 common Honda, Kia, and Toyota engines, and what to do when the stamp is worn.<\/p>\n","protected":false},"author":12,"featured_media":758,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_wrt_schema_jsonld":"","_wrt_schema_jsonld_mode":"append","footnotes":""},"categories":[5],"tags":[],"class_list":["post-757","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-car-repair-maintenance"],"_links":{"self":[{"href":"https:\/\/www.way.com\/auto-repair-software\/wp-json\/wp\/v2\/posts\/757","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.way.com\/auto-repair-software\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.way.com\/auto-repair-software\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.way.com\/auto-repair-software\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/www.way.com\/auto-repair-software\/wp-json\/wp\/v2\/comments?post=757"}],"version-history":[{"count":12,"href":"https:\/\/www.way.com\/auto-repair-software\/wp-json\/wp\/v2\/posts\/757\/revisions"}],"predecessor-version":[{"id":774,"href":"https:\/\/www.way.com\/auto-repair-software\/wp-json\/wp\/v2\/posts\/757\/revisions\/774"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.way.com\/auto-repair-software\/wp-json\/wp\/v2\/media\/758"}],"wp:attachment":[{"href":"https:\/\/www.way.com\/auto-repair-software\/wp-json\/wp\/v2\/media?parent=757"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.way.com\/auto-repair-software\/wp-json\/wp\/v2\/categories?post=757"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.way.com\/auto-repair-software\/wp-json\/wp\/v2\/tags?post=757"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}