Top 10 Transmission Gasket Sealant – Gasket Sealers

As an Amazon Associate I earn from qualifying purchases.

1. Permatex

#ad

3 oz. Tube , Permatex 81180 Automatic Transmission RTV Sealant, Gray

#ad
Permatex #ad - Formulated to resist aging, weathering and thermal cycling without hardening, shrinking or cracking. Sensor-safe, non-toxic, non-corrosive, non-flammable, and low odor sealant can be used as a gasket maker or dressing. Suggested applications: Automatic transmission pans, case halves and inside covers. Improves transmission oil resistance and provides good adhesion while retaining flexibility. Specially designed to withstand the harsh detergents and additives found in automatic transmission fluid.
BrandPermatex #ad
ManufacturerPermatex #ad
Height1.7 Inches
Length8.9 Inches
Weight0.24 Pounds
Width3.9 Inches
Part Number81180
Model81180
WarrantyManufacturer Warranty

2. Permatex

#ad

Permatex 81160 High-Temp Red RTV Silicone Gasket, 3 oz

#ad
Permatex #ad - Temperature range of -65F To 650F Intermittent. Replaces almost any cut gasket, And Coats Pre-Cut Gaskets To Increase Reliability. Makes reliable 'formed-in-place' Gaskets That Resist Cracking, Shrinking And Migrating. Formulated for hi-temp Applications, Or Heavy-Duty Use.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8 Inches
Length1.25 Inches
Weight0.2 Pounds
Width3.81 Inches
Part Number81160
Model81160
WarrantyManufacturer Warranty

3. Permatex

#ad

Permatex 82180 Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker, For High Flex And Oil Resistant Applications 3.35oz Tube, Sensor Safe And Non-Corrosive

#ad
Permatex #ad - Superior resistance - powertrain fluids including engine oil, Transmission Fluid, Gear Lube And Coolants To Keep Your Application Locked In Place To Create A Strong Long Lasting Seal. Suggested applications: valve covers and valve guides, Oil Pans, Intake Manifold End Seals, Timing Gear Covers, Transmission Pans, And Differential Covers.

Non-corrosive formula - ultra black maximum oil resistance silicone Gasket Maker Is Sensor-safe; With A Non-Corrosive Formula Designed For Superior Adhesion To Oily Surfaces And Long Term Durability. With a temperature range of -65°f to 500°f -54°c To 260°c Intermittent.

Long-lasting and durable - ultra black resists aging, weathering and thermal cycling Without Hardening, Shrinking Or Cracking. High flexibility - ultra black silicone gasket maker retains high flexibility And Oil Resistant Properties And Can Be Used To Replace Pre Cut Gaskets Or Be Used As A Gasket Maker Or Gasket Sealant.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8 Inches
Length1.38 Inches
Weight0.1 Pounds
Width3.81 Inches
Part Number82180
Model82180
WarrantyManufacturer

4. J-B Weld

#ad

Red, J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant, 3 oz.

#ad
J-B Weld #ad - Jb weld delivers the legendary performance of the World's Strongest Bond. Do it yourself: big or small, you can diy it with j-b. With each product we innovate, we continue to provide the world's strongest bond for your projects.

Versatile & dependable: ideal for automotive, water pumps, oil pans, exhaust manifolds, timing covers, metal, differential covers, drive housings and oven doors. Our heavy duty adhesives repair & restore it right the first time. Easy to use: curing when the product is exposed to the moisture in air, waterproof seal on most surfaces. It will not shrink or crack, it forms a tough, resists weathering and is sensor safe.

Count on us: for more than 40 years, our products have earned a loyal following from people who take pride in their work. Hi temp red silicone gasket maker & sealant: is an rtv room temperature Vulcanized Silicone gasketing material, designed for use in mechanical assemblies where the existence of higher, continuous temperatures up to 550º F or 650º F intermittent might exist.
BrandJ-B Weld #ad
ManufacturerJBWeld #ad
Height6.3 Inches
Length1.97 Inches
Weight0.2 Pounds
Width1.57 Inches
Part Number31314
Model31314
WarrantyNo Warranty

5. Loctite

#ad

Loctite 515 Gasket Maker & Flange Sealant for Automotive: High Temp, Anaerobic | Purple, Medium-Strength, 50mL PN: 555352

#ad
Loctite #ad - Flexes with movement. Motor oils, cutting fluids. Works on all metals, corrosion protection oils, including passive substrates e. G. Easily removable.

Well suited for automotive and other applications such as water pumps, thermostat housings, transmission pans, transmission case covers, transaxle casings, O-ring replacement. Without primer, sets in 1-12hrs. Adds flexibility to rigid machined flanges that move in service & eliminates the need for preformed, paper, rubber & cork gaskets. Loctite 515 is designed for close fitting flanged parts with gaps up to 025 mm 001 in. Reliable adhesion. Convenient curing. With primer, sets in 15m – 2hrs. Stainless steel, aluminum, plated surfaces & tolerates minor contamination by oils e. G.
BrandLoctite #ad
ManufacturerLoctite #ad
Height1.7 Inches
Length7.1 Inches
Weight0.15 Pounds
Width3.75 Inches
Part Number555352
ModelLOC555352

6. BlueDevil Products

#ad

BlueDevil Transmission Sealer

#ad
BlueDevil Products #ad - Works in manual or Automatic Transmissions. Restores dried, Cracked, and Shrunken Rubber Seals. Guaranteed Permanent Seal.
BrandBlueDevil Products #ad
ManufacturerBlueDevil Products #ad
Height2.75 Inches
Length7.25 Inches
Width2.75 Inches
Part Number00236
Model236
Warrantylimited

7. Loctite

#ad

Low-Odor | Black, High Temp, Loctite Ready Gasket – 1-Minute Flange Sealant & Gasket Maker for Automotive: Sensor-Safe, 190mL Aerosol Can PN: 37512-494150

#ad
Loctite #ad - This high temp silicone sealant works on all metals, plated surfaces. Enhances load bearing & shock absorbing characteristics of the bond area.

Equipment can return to service immediately! Loctite ready gasket replaces almost any cut gasket or coat pre-cut gaskets to increase reliability. Immediate curing. Eliminates the need for preformed, paper, rubber & cork gaskets. Tolerates contamination by oils e. G. Reliable adhesion. Resists cracking, including passive substrates e. G. Stainless steel, aluminum, shrinking & migrating. Operating strength of 15 PSI within 1 minute of application. Increased oil resistance. Flexes with movement. Motor oils, corrosion protection oils, cutting fluids.
BrandLoctite #ad
ManufacturerLoctite #ad
Height1.95 Inches
Length2.5 Inches
Weight0.5 Pounds
Width5.9 Inches
Part Number494150
ModelLOC494150

8. Permatex

#ad

Permatex 81182 Gear Oil RTV Gasket Maker, 3 oz.

#ad
Permatex #ad - Seeks and seals leak paths that cut gaskets cannot. Tested to original Equipment Manufacturer OEM specifications to ensure complete sealing power. Sensor safe, non-toxic, and non-flammable. Specialty silicone does not break down against gear oil friction modifiers. Specially formulated to withstand the harsh gear oil environment found in differentials and transfer cases.
BrandPermatex #ad
ManufacturerPermatex #ad
Height1.4 Inches
Length7.9 Inches
Weight0.19 Pounds
Width3.8 Inches
Part Number81182
Model81182
WarrantyManufacturer Warranty

9. Permatex

#ad

12 oz., Permatex 82099 Spray Sealant

#ad
Permatex #ad - Eliminates the need for liquid additive sealers that can swell and foul internal seals. Seals hard-to-reach leaks without the need for disassembling or removing parts. Durable rubber barrier stops leaks in minutes. Resists common shop fluids. Targets low pressure leaks in hoses, differentials, oil pans, as well as plastic, transmission pans, PVC and metal pipes.
BrandPermatex #ad
ManufacturerRain-X #ad
Height0 inches
Length0 inches
Weight0.75 Pounds
Width0 inches
Part Number82099
Model82099

10. Permatex

#ad

Permatex 82194 Ultra Grey Rigid High-Torque RTV Silicone Gasket Maker, 3.5 oz.

#ad
Permatex #ad - Low odor and non-corrosive formula. Maximum vibration resistance, with outstanding resistance to oils, cooling and shop fluids. Suggested applications: valve covers, oil pans, timing covers, intake manifold end seals, water pumps, thermostat housings. Designed specially for high-torque and high vibration applications.
BrandPermatex #ad
ManufacturerPermatex #ad
Height8 Inches
Length1.25 Inches
Weight0.26 Pounds
Width3.81 Inches
Part Number82194
Model82194
WarrantyManufacturer Warranty