Moroso Square O-Ring (Replacement for Part No 23770/23780/23840/23890)

If you're working on a Moroso oil pan or fabricated part that uses a specific square-cut O-ring seal, this replacement from Moroso is what you need. This O-ring is designed to seal against a flat surface, creating a reliable barrier to prevent leaks in your engine's oiling system. It's a direct replacement for several popular Moroso part numbers, ensuring you get the correct fit for your existing components.

This square O-ring is made from a durable material that holds up to engine oil and temperature fluctuations. Its precise dimensions ensure it seats properly in the groove of your oil pan or fabricated component, making installation straightforward. Having the right seal is critical for maintaining oil pressure and preventing messy leaks, so using a genuine Moroso replacement part gives you confidence in the seal's integrity.