MEDIUM FITTING FILTER 2 MICRONS RAC2040SM-OR

Function and technical context

This 2 micron filter element acts directly in the diesel fuel supply circuit, intercepting solid particles, emulsified water and organic contaminants before they reach the injection pump and injectors. By working with a high-precision filtration mesh at 2 microns, it guarantees that only clean diesel fuel free of impurities reaches the most sensitive components of the injection system. Its distinctive brown body allows for quick visual identification during maintenance inspections. A deteriorated or clogged fuel filter can cause pressure drops in the supply line, poor cold starts, loss of power during operation and, in extreme cases, irreparable damage to the injectors due to the passage of abrasive particles.

When to replace this part?

The most common symptoms that indicate that the filter element is saturated or in poor condition are: difficulty starting, especially when cold; unstable idle or jerks while cruising; and turning on the fuel pressure warning light or engine alarm. In medium-power diesel marine engines, it is recommended to replace the Racor filter every 250-300 hours of operation or at least once per nautical season, whichever occurs first, given that the variable quality of diesel in ports and marinas can significantly accelerate clogging. Replacing this filter preventively at each seasonal inspection is the simplest and most economical measure to avoid a breakdown in the injection system at sea, where repair is enormously expensive and complex.

Compatible Volvo Engines

Equivalent manufacturer part numbers