ACDelco 10-108

Q: Will these work with the orange Dexcool antifreeze?

My mechanic said not to put anything into the anti-freeze. I will never use that orange stuff in my 1994 Cadillac 4.9 Deville. If you have the 4.6 North Star, that may be different story. GM tried to promote these tablets to cure a bad leaky North-Star motor. Jeff.

Q: Is this product preventative ?

Yes, this was actually put into aluminum block engines from the factory because of the porosity. It does an incredible job stopping leaks and preventing leaks.

Q: what is a ladder frame?

A ladder frame uses an additional block structure located between the cylinder block and oil pan, which incorporates the main bearing caps into a one piece component resembling a ladder, sometimes called a girdle.Feb 6, 2018

Product ID: 777040908

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Details

Brand
ACDelco
Color
beige
Material
アルミニウム
Auto Part Position
Front
UPC
036666919363

⏱️Quick, easy installation

🛠️High viscosity for durable sealing

🛡️Resistant to oil & coolant corrosion

Frequently Bought Together

ACDelco GM Original Equipment 10-108 (12378255) Cooling System Sealing Tabs - 4 g

Bar's Leaks 1109 Liquid Copper Block Seal, Intake and Radiator Stop Leak, 18 oz. | One Step, Safe for All Cooling Systems

PEAK 50/50 Prediluted Antifreeze and Coolant for All Engine Cooling Systems

Description

🛠️ Seal it right, seal it tight—engineered for pros who demand perfection.

SENSOR SAFE - Formulated to protect oxygen sensors, ensuring no interference with engine performance.
ENGINEERED FOR SPEED - One-component design allows immediate bolt torquing and fluid filling—no wait, no hassle.
SEAL WITH CONFIDENCE - High viscosity formula fills large gaps and hardens on air exposure for a rock-solid seal.
PRECISION APPLICATION - Comes in a convenient tube for pinpoint accuracy, reducing waste and mess.
UNIVERSAL COMPATIBILITY - Works seamlessly on oil pans, manifold corners, cam covers, and more—your all-in-one engine sealant.

The ACDelco 10-108 RTV Engine Sealant is a high-viscosity, one-component sealant designed for quick, reliable sealing of various engine parts. It hardens upon air exposure, resists oil and coolant corrosion, and is safe for oxygen sensors. Packaged in a precision tube, it enables fast installation and immediate engine fluid filling, making it a trusted choice for professional-grade engine maintenance.

Specifications

Manufacturer	ACDelco
Model	AC Delco
Item model number	10-108
Is Discontinued By Manufacturer	Yes
Exterior	Machined
OEM Part Number	12378255
Item Weight	31.8 g

Have a Question? See What Others Asked

The description states "ACDelco 10-108 COOL SEAL5TABS 24CTN" Please clarify if this is a CARTON of 24 blister packs or only 1 blister pack w/ 5 tabs

Will these work with the orange Dexcool antifreeze?

Is this product preventative ?

what is a ladder frame?

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