{"id":4685,"date":"2026-09-18T05:58:24","date_gmt":"2026-09-18T05:58:24","guid":{"rendered":"https:\/\/yzdlparts.com\/?p=4685"},"modified":"2026-09-18T06:28:32","modified_gmt":"2026-09-18T06:28:32","slug":"cummins-k38-engine-guide","status":"publish","type":"post","link":"https:\/\/yzdlparts.com\/es\/technical-support\/cummins-k38-engine-guide\/","title":{"rendered":"Cummins K38 Engine Guide: Specs, Parts & Applications"},"content":{"rendered":"

En Cummins K38<\/a><\/strong> is a 38-liter V12 diesel engine used in applications where a large amount of power has to be available for long periods. Cummins lists the K38 for marine, mining, and pump applications, with diesel ratings from 750 to 1,400 HP.<\/p>\n\n\n\n

But different K38 configurations, however, can have different ratings and equipment, so the engine name alone does not identify every replacement part. That matters when you are buying Cummins K38 parts<\/strong>. A crankshaft, injector, fuel pump, gasket, or turbocharger needs to match the engine configuration and original part number. This guide brings together the main K38 specifications, applications, common replacement parts, rebuild considerations, and practical information for sourcing K38 components.<\/p>\n\n\n\n

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What Is the Cummins K38?<\/strong><\/strong><\/h2>\n\n\n\n

The Cummins K38 Engine is a large-displacement V12 diesel engine<\/a> with a 38-liter displacement, designed for applications that require substantial power and sustained operation. Depending on the configuration, the K38 can produce between 750 and 1,400 HP, with a turbocharged air system and Cummins PT fuel system. Its size and power make it suitable for demanding equipment where reliability and continuous performance are important.<\/p>\n\n\n\n

The K38 is used across several heavy-duty applications, including marine equipment, mining machinery, and pumping systems. Because the engine is adapted to different operating environments, components can vary between configurations. A part used on one K38 application may not necessarily be the correct replacement for another.<\/p>\n\n\n\n

When searching for K38 parts, you may also encounter KTA38 and K38-M. These names are closely related to the K38 family, but they do not mean that every component is interchangeable. The engine model, configuration, and original part number should all be checked before ordering a replacement. If you are sourcing a Cummins K38 part, the most useful information to provide is the engine model and the original part number. This makes it much easier to match the correct component and avoid ordering a similar-looking part for a different configuration.<\/p>\n\n\n\n

Especificaciones del motor Cummins K38<\/strong><\/strong><\/h2>\n\n\n\n

En Cummins K38 engine specifications<\/strong> depend on the specific configuration. The figures below are useful as a general reference for the K38 platform rather than as a fitment chart for every K38 engine.<\/p>\n\n\n\n

Configuration<\/strong><\/td>V-12 cylinder, 4-stroke diesel<\/td><\/tr>
Aspiraci\u00f3n<\/strong><\/td>Turbocharged \/ Aftercooled<\/td><\/tr>
Desplazamiento<\/strong><\/td>38 L (2300 in\u00b3)<\/td><\/tr>
Bore & Stroke<\/strong><\/td>159 X 159 mm (6.25 X 6.25 in)<\/td><\/tr>
Rotation<\/strong><\/td>Counterclockwise facing flywheel<\/td><\/tr>
Sistema de combustible<\/strong><\/td>High Pressure Common Rail<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
Product Dimensions and Weight<\/strong><\/td><\/tr>
Overall Length<\/strong><\/td>mm (in)<\/td>2282.4<\/td>(89.86)<\/td><\/tr>
Length of Block<\/strong><\/td>mm (in)<\/td>1546.9<\/td>(60.90)<\/td><\/tr>
Overall Width<\/strong><\/td>mm (in)<\/td>1573.4<\/td>(61.95)<\/td><\/tr>
Overall Height<\/strong><\/td>mm (in)<\/td>2241.8<\/td>(88.26)<\/td><\/tr>
Peso<\/strong><\/td>kg (lb)<\/td>4850<\/td>(10,692)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

The Cummins K38 Engine has a 38-liter V12 design built for heavy-duty operation. A typical K38 configuration measures around 2,281 \u00d7 1,362 \u00d7 1,751 mm and weighs about 4,300 kg, although the actual size and weight can change with the engine configuration and equipment fitted to it.<\/p>\n\n\n\n

The basic engine design includes a V12, four-stroke diesel layout, with a 159 \u00d7 159 mm bore and stroke on KTA38 marine configurations. The engine uses a turbocharged and aftercooled air system together with a PT fuel system. Power output also depends on the specific application and rating, so K38 engines used in marine, mining, pumping, or other heavy-duty equipment should not be treated as having identical specifications.<\/p>\n\n\n\n

Cummins K38 Applications<\/strong><\/strong><\/h2>\n\n\n\n

En Cummins K38<\/strong>\u00a0is associated with several heavy-duty applications. Cummins currently lists marine, mining engines, and pumps for the K38 platform.<\/p>\n\n\n\n

Cummins K38 Marine Engine<\/strong><\/h3>\n\n\n\n

A Cummins K38 marine engine<\/strong> can refer to marine versions within the K38 family, including KTA38 and K38-M configurations.<\/p>\n\n\n\n

Cummins’ marine documentation lists KTA38 marine engines as V12, four-stroke diesels with 38 L displacement and turbocharged and aftercooled aspiration. The published marine specifications also show a 159 \u00d7 159 mm bore and stroke and a PT fuel system.<\/p>\n\n\n\n

Marine applications also have their own equipment requirements. Cummins’ marine KTA38 information, for example, includes marine-grade wiring and marine-specific air and lubrication system equipment.<\/p>\n\n\n\n

Cummins K38 for Mining and Pump Applications<\/strong><\/strong><\/h3>\n\n\n\n

The Cummins K38 is also used in heavy-duty mining equipment and industrial pumping systems, where the engine may need to deliver high power for long working cycles. Mining equipment can operate under heavy loads and demanding site conditions, while pump systems often require steady engine output over extended periods.<\/p>\n\n\n\n

These applications use different equipment layouts and operating requirements, so the parts fitted to a K38 can vary. Components such as the K38 crankshaft, fuel pump, turbocharger, cooling components, and gaskets need to match the engine configuration rather than being selected from the K38 model name alone.<\/p>\n\n\n\n

When sourcing a K38 Cummins Engine part for mining or pump equipment, providing the original part number is the most reliable way to identify the correct component. If the part number is unavailable, the engine model, CPL, application, and other identification details can help narrow down the correct specification.<\/p>\n\n\n\n

K38 in Power Generation<\/strong><\/strong><\/h3>\n\n\n\n

Cummins currently lists KTA38 generator sets for commercial and industrial applications. The published KTA38 generator range includes different prime and standby ratings depending on the model and frequency. For example, the current range includes 50 Hz and 60 Hz configurations with prime ratings from 720 to 928 kW and standby ratings from 800 to 1,020 kW in the KTA38 series.<\/p>\n\n\n\n

So if you are buying a replacement engine component for a generator set, the generator model or engine model can be more useful than simply saying “K38 generator.”<\/p>\n\n\n\n

Common Cummins K38 Parts<\/strong><\/strong><\/h2>\n\n\n\n

K38 maintenance can involve anything from replacing a single fuel system component to carrying out a complete engine overhaul. Depending on the condition of the engine, parts such as injectors, fuel pumps, crankshafts, connecting rods, turbocharger kits, and gasket sets may be required. YIZHI POWER supplies these and other K38 components for repair and maintenance projects.<\/p>\n\n\n\n

(1)<\/strong>K38 Fuel System Parts<\/strong><\/strong><\/h3>\n\n\n\n

Fuel-system parts require careful identification. YIZHI POWER currently supplies:<\/p>\n\n\n\n

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\"Inyectores
Inyector K38 3068824<\/strong><\/figcaption><\/figure>\n\n\n\n
\"Bombas
K38 Fuel Pump 3080548<\/a><\/strong><\/figcaption><\/figure>\n\n\n\n
\"Bombas
Bomba de combustible K38 3080521<\/strong><\/figcaption><\/figure>\n<\/figure>\n\n\n\n