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?
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Cracked or missing sealing ring → oil mist around filler neck.
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Warped plastic aftermarket cap → won’t hold pressure, risks oil aeration.
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Routine top-end rebuilds—cheap insurance to keep debris out.
Cross-reference & interchange
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Caterpillar: 254-3376 / 2543376 / 254-3376
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Cat engineering drawing: Cap Assembly, Engine Oil Filler.
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Replaces generic “CAP A” aftermarket versions that often omit the gasket.
Applications
This 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.
