Overview – LINE-FUEL (DIESEL) 501-0672-04 Series
501-0672-04 belongs to the CUMMINS LINE-FUEL (DIESEL) range and serves CUMMINS and Onan generator set diesel fuel systems. This article covers its features, fitment, maintenance and price, and we can supply the complete series on request.
Parts Characteristics
501-0672-04 is a formed steel fuel line with the flared ends and fittings matched to the original route between the fuel filter and the injection pump. The tube is bent to the factory profile so it clips into the original brackets without forcing, and the surface is protected against corrosion for generator enclosure service. As an OEM-spec line, it carries the full fuel flow with the original internal bore. The line is supplied with the factory flare style, so it accepts the original fittings without re-flaring or the use of adapters.
Applicable Models & Applications
This fuel line fits CUMMINS and Onan generator set fuel systems where the original 501-0672-04 route applies, including the supply line from the filter to the pump. Confirm the fitting ends and the bracket spacing against the line removed from your set before ordering, as the route differs between enclosure layouts. The same route is shared by the related 501-0672-05 line, and we can confirm the difference between the two numbers from your serial.
Maintenance & Replacement
Inspect the fuel line at every service for kinks, chafing and cracks around the flared ends, which allow air into the fuel system and cause hard starting. When replacing, fit new sealing washers or O-rings at both ends, clip the line into the original brackets and tighten to the specified torque without stressing the tube. Keep the line clear of hot exhaust surfaces and moving belts, and re-check the clips after the first hours of running.
Price Reference (USD)
Pricing for LINE-FUEL (DIESEL) (501-0672-04) starts from approximately USD 25, with most orders landing in the 25 – 80 range. Volume discounts apply; confirm the exact rate with our sales team.
Value & Service
We check 501-0672-04 against the original CUMMINS bend profile before dispatch and stock it together with 501-0672-05, so a full set can ship in one tracked order. Send us the generator set serial number and we will confirm the correct line for your enclosure layout. As a wear item on older sets, this line is a common cause of air ingress, so we recommend replacing it together with the filters during a fuel service.
Other numbers from the LINE-FUEL (DIESEL) Series Series: 501-0672-05.
Looking for LINE-FUEL (DIESEL) (501-0672-04)? Racer Machinery is a trusted engine part supplier to dealers and maintenance shops, offering verified CUMMINS replacement parts with fast international shipping and technical support.
