This listing offers a 6-pack of Baldwin B7030 heavy-duty lube / oil filter spin-on cartridges, engineered for commercial trucks, buses, heavy-duty engines and industrial equipment that require a 5.38″ outside diameter, 12.03″ length, and M36 × 1.5 thread filter. The B7030 is a full-flow spin-on design with 9.8 µm nominal / 27 µm absolute filtration media and a 30 PSID bypass valve, providing reliable oil filtration and continuous flow even under heavy particulate load. Each filter includes Baldwin's integral gasket and is suitable for applications demanding high capacity and durability. The 6-pack bulk format makes this offering ideal for fleets, maintenance shops, or multi-engine servicing — providing easier stock management and reduced per-filter cost. Always confirm housing compatibility, thread, and service requirements before installation.