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Sometimes different engine parts can be in the same engine. This is due to the fact that depending on various factors such as the year of manufacture, the engine power or the design, the application of these spare parts can change.

It is very important to know some data about the engines repaired in order to select the correct engine spare parts. Here are some examples:



A case in point is the Opel D20DTH engine. It is an in-line 4-cylinder engine with a displacement of 2 liters and can have a power output of 170 or 177 hp.

This difference in power is the reason for the application of one cylinder head gasket or another, In the following image you can see the different Elring cylinder head gaskets.

engine data


The 9H or BH engine of the PSA group has two different types of manifold. One manifold has the pin on the right-hand side and the other one has the pin on the left.

engine data
engine data

Another engine part where we see the same situation is the rocker arm bracket on the left. As can be seen, both rocker arm supports have the same design except for a vertical bar in the center of the spare. 

In these cases, the easiest way to identify which part we need is to compare it with the design of the previous part and thus know exactly which part to apply to ensure the success of the repair.


Normally, the intake valves are larger than the exhaust valves. In the case of the valves for the John Deere Powertech 6090 engine, they are the same size.

Unlike the exhaust valve, the intake valve has magnetic material and a larger recess.

engine data

It is very important that these two engine parts are fitted correctly for the perfect functioning of the engine.

Finally, as we told you in another article, there may be different timing kits for a single engine that vary depending on the number of parts you need to repair it.

As you can see, getting all the details of the engine to repair is very important to ensure the success of the repair.

At Oryx Parts we work every day to have the correct information about each engine to be able to detect all these factors we have mentioned.

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