Cummins Filters — part numbers

91 numbers covering oil, fuel, air, coolant and hydraulic filtration across the catalogue. It is the smallest category by number of parts and, in practice, the one that generates the most repeat enquiries — filters are the only genuinely recurring purchase in a spares programme.

Filters are also the category where the branded aftermarket case is strongest. Fleetguard is the Cummins original equipment brand, and Donaldson, Baldwin and Mann all manufacture filtration to the same standards for the same applications. When we quote a Tier 2 filter it is one of those names, bought through that brand's authorised distributor, and it is a legitimate saving rather than a compromise. Unbranded filters are the compromise, and we do not supply them.

The technical point worth making is about micron rating rather than fit. Filters that fit physically but filter to a coarser rating will keep the engine running and shorten its life, and this is where cheap filtration does its damage — invisibly, over years. On the electronic engines with high-pressure fuel systems, fuel filtration rating is not a place to economise at all; the injectors cost more than a decade of filters.

Because filters are consumable, this is the category where holding stock locally makes the most obvious sense. Send us the engine serials on your site and the running hours pattern and we will quote a twelve-month filtration holding as a single consolidated shipment, which is materially cheaper per unit than ordering by service interval.

For a quotation, the engine serial number is usually enough. For hydraulic and auxiliary filtration, tell us the equipment as well as the engine.