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ACDelco GM Original Equipment Cooling System Sealing Tabs - 4 g
OE

ACDelco GM Original Equipment Cooling System Sealing Tabs - 4 g

GM Part #12378255

ACDelco Part #10-108

MSRP$4.52*

RTV Engine Sealant is a one-component, room-temperature vulcanizing (RTV) sealant.

  • Engineered for use on a variety of engine components - effective on: oil pan, ladder frame, front and rear covers, t-joints, manifold corners, intake, manifold end seals, and cam covers
  • Designed for quick and easy application, assembly may be filled with oil or coolant immediately after applying sealant and torqueing the bolts
  • High viscosity product that cures when exposed to air

About this product

RTV Engine Sealant is a one-component, room-temperature vulcanizing (RTV) sealant. It is a high viscosity engine sealant that cures when exposed to air. The cured material has adhesion and elongation properties and is effective even on large gaps. It is very resistant to engine oils and coolants, will not corrode metals, and is blow-out resistant. This engine sealant is also oxygen sensor safe. This product comes in a tube for easy, pinpoint application.

Warning WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

  • Engineered for use on a variety of engine components - effective on: oil pan, ladder frame, front and rear covers, t-joints, manifold corners, intake, manifold end seals, and cam covers
  • Designed for quick and easy application, assembly may be filled with oil or coolant immediately after applying sealant and torqueing the bolts
  • High viscosity product that cures when exposed to air

ClassificationOE
PermanentYes

No warranty

Please visit our warranty page on Gmparts.com for full warranty details.

Good Maintenance Practices:

  • Engine sealants are able to fix engine leaks, but it is important to check on the size and nature of the leaks before use. If leaks are large and fluids are pouring out of the vehicle, more significant engine repair is likely required. Attempting to fix a major leak with engine sealant could lead to contamination of other fluid reservoirs and end up causing major damage to the vehicle.
  • Carefully follow the directions for engine sealant application, as improper use can also cause significant harm to the engine.
  • Consulting a technician is a great way to determine if the leak is too large for engine sealant and to ensure the proper application of these products.

Engine sealants provide an effective solution when you observe small leaks from a variety of engine components. Some of the most common sources of leakage are:

  • Areas around the head gasket
  • Above and below the intake manifold gasket
  • Valve cover access panels
  • Oil pan

Frequently Asked Questions

Yes, ACDelco RTV Engine Sealant can cause damage if the product contaminates the fluid. Keep the applied product away from the fluid side of the seal. For best results, follow the application instructions.

Yes, a leak can be too large for the ACDelco RTV Engine Sealant to be effective. If the fluid is flowing from the engine (more than drips) a more robust repair method must be used.

Yes, the ACDelco RTV Engine Sealant cartridge and tube versions can be used for the same functions.

Yes, ACDelco RTV sealant can last a very long time if applied using proper methods. Clean surfaces and correct application techniques can give years of effective service.