Description Part Number: 2543376 Key benefits Direct OEM replacement—built to CAT material & thread specs for a perfect fit. 75.64 mm overall height gives you plenty of grip, even with gloved hands. Nitrile elastomer gasket resists diesel, oil vapors and 250 °F temps. Zinc-phosphate coating fights corrosion for long service life. When should you replace the cap? Cracked or missing sealing ring → oil mist around filler neck. Warped plastic aftermarket cap → won’t hold pressure, risks oil aeration. Routine top-end rebuilds—cheap insurance to keep debris out. Cross-reference & interchange Caterpillar: 254-3376 / 2543376 / 254-3376 Cat engineering drawing: Cap Assembly, Engine Oil Filler. Replaces generic “CAP A” aftermarket versions that often omit the gasket. ApplicationsThis cap is specified on a variety of Caterpillar on-highway, industrial and generator engines. Always verify with your serial number or call our parts techs at 606-864-9711. Specifications Outside width 44.5 mm (1.75 in) Overall height 75.64 mm (2.98 in) Weight 0.27 lb (0.12 kg) Material Coated steel with nitrile gasket Why PeteTruckParts?• In-stock—orders before 3 pm ET ship the same day.• Free ground freight on US orders over $500.• 30-day hassle-free returns—if it doesn’t fit, send it back. Need other CAT engine parts? Explore the full CAT engine parts collection for filters, gaskets and overhaul kits.
