ACDelco GM Original Equipment FC256 Engine Oil Filler Cap | 25192632

Overview

The ACDelco GM Original Equipment FC256 Engine Oil Filler Cap is a genuine GM OE replacement designed to seal the oil fill opening on your engine. Featuring a rubber sealing ring, it helps keep oil and crankcase vapors contained while keeping water and dirt out. Built to GM OE standards, this cap is intended to deliver the same level of performance, durability, and service life you expect from General Motors.

Design and compatibility

This filler cap is described as threaded or quarter-turn, enabling quick service during maintenance. By mirroring the form and function of the factory component, it supports a reliable seal and straightforward installation, helping you preserve engine cleanliness and proper crankcase environment over time.

Key benefits at a glance

• Seals the oil filler opening to help prevent leaks and spills during operation and servicing.
• Rubber sealing ring helps keep contaminants out and crankcase vapors in, contributing to a cleaner engine bay.
• GM-recommended replacement part for your GM vehicle’s original factory component, ensuring compatibility.

• Manufactured to GM OE specifications for fit, form, and function, matching the original engineering intent.
• Provides the quality, reliability, and durability associated with GM OE components.
• Designed to facilitate routine maintenance with a straightforward install or replacement process.

Real-world use and considerations

In daily driving and service scenarios, this cap supports consistent sealing at the oil filler opening, helping maintain engine cleanliness and reduce exposure to exterior contaminants. While not a guarantee of performance, using a genuine GM OE cap can help preserve the intended design of your engine’s ventilation and sealing system. For vehicle owners performing DIY maintenance, selecting the FC256 cap aligns with GM’s original engineering approach, potentially simplifying part selection and ensuring compatible fit with GM vehicles.

Overall, choosing the ACDelco FC256 cap means opting for a replacement that mirrors the factory specification, providing a balance of ease of use, dependable sealing, and long-term durability as part of your vehicle’s routine upkeep.