Sierra 18-7931 Diesel Fuel Filter, Replaces Detroit Diesel 5574508, for 8V-92 and 8V-71 Engines

The Sierra 18-7931 is a replacement diesel fuel filter engineered for Detroit Diesel 8V-92 and 8V-71 engines. It is built to meet or exceed OEM manufacturer specifications, giving boat owners a dependable option for keeping fuel clean and engine components protected from contamination and debris that can cause performance loss or premature wear.

This filter uses high-efficiency filter media rated at 20 microns, capturing fine particulate before it reaches injectors and fuel system components. Where applicable, the filter incorporates an anti-drainback valve that helps prevent dry starts by keeping fuel in the filter housing between engine cycles, so the engine does not have to re-prime the fuel system every time it is started. The housing is constructed with a metal outer shell for durability in a marine engine compartment environment.

The Sierra 18-7931 is designed as a direct cross-reference replacement for OMC 173326 and Detroit Diesel 5574508 fuel filters, making it straightforward to identify and order the correct filter for scheduled maintenance or fuel system service on compatible Detroit Diesel marine engines.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-7931
• Product Type: Fuel Filter
• Engine Application: Detroit Diesel 8V-92, 8V-71
• Filtration Rating: 20 Micron
• Anti-Drainback Valve: Yes, where applicable
• Outer Material: Metal
• Weight: 0.75 pounds
• UPC: 808282167851
• OEM Cross Reference: OMC 173326, Detroit Diesel 5574508

Fitment

Fits Detroit Diesel 8V-92 and 8V-71 marine diesel engines.

Replaces (OEM)

• OMC 173326
• Detroit Diesel 5574508

Frequently Asked Questions

What engines is the Sierra 18-7931 fuel filter designed for? The Sierra 18-7931 is designed for Detroit Diesel 8V-92 and 8V-71 marine diesel engines.

Does the 18-7931 replace a Detroit Diesel OEM filter? Yes, the Sierra 18-7931 cross-references to Detroit Diesel part number 5574508, so it can be used as a direct replacement on applicable engines.

Is there an OMC cross-reference number for this filter? OMC part number 173326 cross-references to the Sierra 18-7931 fuel filter.

What micron rating does this filter use? The Sierra 18-7931 uses high-efficiency filter media rated at 20 microns.

Does this filter have an anti-drainback valve? Where applicable, yes. The 18-7931 incorporates an anti-drainback valve to help prevent dry starts by keeping fuel in the housing between engine cycles.

How much does the Sierra 18-7931 fuel filter weigh? The Sierra 18-7931 weighs 0.75 pounds.

What is the outer housing material of the 18-7931? The Sierra 18-7931 has a metal outer housing for durability in a marine engine environment.

Is the Sierra 18-7931 an OEM part or an aftermarket replacement? The 18-7931 is an aftermarket replacement filter manufactured by Sierra, built to meet or exceed OEM manufacturer specifications for Detroit Diesel 8V-92 and 8V-71 engines.

Will the 18-7931 fit other Detroit Diesel engine models not listed? The Sierra 18-7931 is specified for Detroit Diesel 8V-92 and 8V-71 engines; fitment for other engine models is not confirmed for this part number.

How often should the 18-7931 fuel filter be replaced? Specific service intervals are not specified for the Sierra 18-7931; replacement should follow the engine manufacturer's recommended fuel filter maintenance schedule.