How To Find Model Year On Detroit Diesel Engine?

On the ID tag, look for the engine model number. The ID tag provides the model designation, the unit production serial number, and the model year, among other things, according to the Wisconsin Bureau of Transportation identification guide. The Detroit diesel engine model is normally found under the engine series header, above the unit serial number.

How do you read a Detroit engine serial number?

  • The number of cylinders is followed by the letter in all 53 Series engine serial numbers “D.” A 453 serial number, for example, will always begin with “4D,” whether it’s a normally aspirated, turbocharged, industrial, or marine engine.
  • For all inline models, the serial number can be located on any of the flat surfaces of the airbox’s corners, quite close to the deck (see images below).
  • The location of the serial number is highly dependent on the engine’s layout, however flat surfaces are fairly straightforward to locate. It will be imprinted on one of them.

How do I identify my Detroit engine?

We always need the engine serial number and model number when quoting a Detroit Diesel engine. This information guarantees that the replacement engine will fit the piece of equipment or truck perfectly, so you won’t have to worry!

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Serial numbers are difficult to locate, particularly after the engine has been used and has accumulated grime and grease.

You can find your engine model and serial number on the engine data plate

On a Detroit Diesel engine, the engine data plate is positioned in the centre of the bell cover, which is located at the top of the engine. The serial number is imprinted on the block underneath it.

What year is my 60 series Detroit?

The Series 60 was the first heavy-duty diesel engine with fully integrated electronic controls when it was released in 1987. Detroit Diesel recommended overhaul intervals of 500,000 miles (800,000 kilometers), which were later increased to 750,000 miles (1,210,000 kilometers) when more experience with the new engine was gained.

The 11.1 L (677 cu in) variant produced 350 horsepower (261 kW) in 1993. (but would produce 15 more if the cruise control was engaged).

Where is the engine serial number on a 60 series Detroit?

The serial number and model number of the engine are stamped on the cylinder block at the following location (as seen from the flywheel end): Just below the intake manifold and above the cast-in Detroit Diesel logo, on the left side.


The size of the engine versions is one of the most noticeable variances. The 14L is slightly larger than the other two for obvious reasons. Many of its components grew in size, which resulted in improved performance. The 14L had a larger cylinder bore and stroke, going from 5.12 in and 6.30 in on the 12.7 to 5.24 in and 6.62 in on the 14L.


Another obvious one, but the engine displacement (the total quantity of air your pistons can pull in) differed greatly between the two versions, as shown by the titles. It’s usually measured in liters, and this figure directly connects to your engine’s power output, with a larger displacement implying more power. The 14L produces somewhat more power than the 12.7L, but it also consumes slightly more fuel.

Horsepower and Torque

The 12.7L produces 380-455 horsepower at 1,800 RPM, while the 14L produces 425-515 horsepower at the same RPM. Similarly, the 14L’s rated torque increased, rising from 1,350-1,550 lb-ft at 1,200 RPM on the 12.7L to 1,550-1650 lb-ft at 1,200 RPM on the 14L. The bigger crankshaft used in the 14L played a big role in this.


The groundbreaking electronic controls included in the Series 60 engines are the Detroit Diesel Electronic Control system (DDEC). There have been several variants of these, and distinct variations may be found on both the 12.7L and 14L. The 12.7L went through three different DDEC phases, with the older engines having DDEC I, II, or III. In 1999, DDEC IV was adopted as a standard feature on all new Series 60 engines. Before the 14L, this version of the DDEC was released, and it contained improvements to the cylinder kit as well. A new version of DDEC IV was launched in 2003. Following the demise of the 12.7L, the 14L benefits from later versions of the systems, which allow for more precise fuel injection control.

So, which is the superior engine? That depends entirely on who you ask. Depending on what you’re searching for in an engine, they both have advantages. Some say that previous engines were improved, while others like the control and economy that current versions provide. Regardless of which route you take, the Series 60 engine series has a long history of proving its dependability and strength.

How do I know if I have a DD15?

In addition to a model number, an engine serial number will be provided. The DD13 and DD15 engines are painted black, but the Detroit Diesel Series 60 engines are painted light blue from the factory. Serial numbers for Series 60 will begin with 06R and end with seven digits. The DD13 and DD15 both have ten numeric digits.

How do I look up a serial number?

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  • Option two: The serial number may usually be found at the bottom of the device’s back cover.

How much HP can you get out of a 12.7 Detroit?

The two 11.1-liter ratings (330 horsepower and 365 hp) have been added to the 12.7-liter model, allowing you to choose between 330 hp and 500 hp.