ACDelco GM Original Equipment RTV Engine Sealant - 5.3 oz Cartridge (10-2010, 12378521)

Overview

ACDelco GM Original Equipment RTV Engine Sealant comes in a ready-to-use 5.3 oz cartridge designed to align with OEM standards. This product supports professional-grade sealing across a variety of engine surfaces, providing a reliable option for enthusiasts who value consistent, service-ready results without unnecessary downtime.

What sets it apart

• Engineered for use on a broad range of engine components, including oil pans, ladder frames, front and rear covers, T-joints, manifold corners, intake, manifold end seals, and cam covers. The formulation is tailored to accommodate diverse sealing surfaces in modern engines.
• Designed for quick and straightforward application; once applied and bolts are torqued, the assembly may be filled with oil or coolant right away, helping you maintain flow and efficiency during service.
• High-viscosity, air-curing sealant that develops its protective seal as it cures in air, supporting a robust barrier against fluid leaks.

Ideal uses and practical benefits

• Oil pan seals and related joints can benefit from a durable, even seal across mating surfaces, potentially reducing seepage in demanding operating conditions.
• Ladder frame connections and front/rear covers gain reliable seals, contributing to steady performance during maintenance or assembly.
• Manifold corners, intake interfaces, and cam covers are common targets for durable sealing where consistent contact between surfaces matters.
• Manifold end seals and related gasket areas may benefit from a uniform application that supports seal integrity over time.

Installation tips and considerations

• Apply the sealant to the prepared mating surfaces, then torque the bolts to spec; the product’s design supports immediate refilling of oil or coolant after assembly.
• Store and handle the cartridge as directed to preserve the formulation’s consistency and performance on future applications.

As with any automotive sealant, results can vary with surface condition, application technique, and operating environment. This product reflects ACDelco’s commitment to OEM-aligned performance and is suitable for professional use or motivated DIY projects seeking reliable sealant behavior without overpromising outcomes.