Fleetguard FF5971NN Fuel Filter for 2020 Through 2023 Cummins X15 Engines Red Light Inspect the volume control valve

Inspect the volume control valve (VCV) on top of the pump for metal shavings to diagnose pump failure

and hex bolt with nut for trailer suspension service

Confirm your existing surge-tank casting and 2-pin rectangular connector before ordering — Volvo/Mack used several level-sensor variants across the VN platform

Thomas Built Buses Saf-T-Liner C2 / B2 (built on M2 chassis)

Fleetguard FF5971NN Fuel Filter for 2020 Through 2023 Cummins X15 Engines Red Light Inspect the volume control valveThe Fleetguard FF5971NN is a spin on fuel filter built on Cummins Filtration NanoNet media, designed for 2020 and newer Cummins X15 and X12 engines (EPA 2017 and EPA 2021 emission ratings). Fleetguard is the OE filter supplier to Cummins, and the FF5971NN is the direct service replacement for Cummins 5575143. It is backwards compatible with the earlier FF5825NN. Specifications Manufacturer Fleetguard (Cummins Filtration) Part Number FF5971NN Part Type