PUMP BASE 8M0007131

Function and technical context

The pump base is a critical component of the lubrication system in Mercury Mariner four- and six-cylinder engines. This piece acts as a structural support and oil retention seal, preventing leaks in the high-pressure lubrication circuit. Its correct operation is essential to maintain the integrity of the oil retaining seal, preventing lubricant losses that could compromise the lubrication of vital internal engine components.

When to replace this part?

Symptoms of deterioration of this pump base include oil stains under the engine, gradual loss of lubricant level without apparent cause, and in advanced cases, abnormal noises coming from the crankcase. It is recommended to check this component during each seasonal maintenance and replace it preventively if micro-leaks or signs of corrosion are detected. Preventive replacement avoids costly internal engine repairs due to insufficient lubrication, especially critical in prolonged marine operations.

Compatible Mercury Mariner Engines

Equivalent manufacturer part numbers