The Cast Engine Oil Pump Cover is a low-cost alternative to metallic oil pump covers. The cap is a high-quality 8mm cast iron that features a pressure relief valve that eliminates excessive oil pressure at high rpm. It is manufactured from a high-strength iron alloy that reduces casting porosity and offers better wear resistance than a steel cap.

The engine oil pump is a complex part that requires the highest degree of accuracy to center and aligns properly before it is tightened onto the crankshaft. Misalignment inside the pump can result in the binding of the gears and can lead to bondage at the crankshaft, which can cause engine failure.

These high-performance pump caps are available in a variety of shapes and sizes to suit different needs. They come in either a high-grade iron alloy or a cast aluminum material. These covers are designed to be used with an oil cooler and oil filter. Another benefit of these high-quality iron pump covers is that they are more lightweight than metal caps. This can help to improve fuel efficiency and reduce emissions of harmful gases from the engine.

In addition, these caps are a good fit for the engines of some vehicle types, including the VW Beetle and the Ford Mustang GT500. They are not suitable for all applications, however, so be sure to check the application details before purchasing. Some high-performance pump caps are available that use shorter gears than the OE pump, which can help to produce more power in engines with smaller cylinder bores. This can reduce the amount of horsepower needed to operate the pump.

Other high-performance pump caps are winterized and have been treated to increase their strength, durability, and performance characteristics. These caps are more resistant to abrasion and withstand a greater number of hammer blows than steel caps. The sintering process also makes it possible to add certain chemical compounds that would not be present in the OE cap, which can result in lower material costs and more durable caps. For example, the sintering process may allow the addition of anti-aeration chemicals to the OE cap, which can prevent foaming or cavitation of the oil in the pump and the engine tank.

The sintering process also ensures the dimensional stability of the cap, which can help to avoid cracking. This is especially important when the cap is mounted on a crankshaft with tight tolerances or on a cylinder head with very large diameters. This can also help to reduce stress on the cylinder head and engine.