Permatex Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker 3 oz. - 75190
Permatex Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker 3 oz. - 75190
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Permatex Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker 3 oz. - 75190

4.7 stars out of 306 reviews
(4.7)|
306 ratings
Permatex Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker 3 oz. - 75190Permatex Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker 3 oz 751902 pack Permatex Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker 3 oz 751903 pack Permatex Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker 3 oz 75190
Pack Size:Single

Key item features

  • 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.
  • Superior Resistance: Provides excellent resistance to powertrain fluids including engine oil, transmission fluid, gear lube, and coolants, ensuring a strong, long-lasting seal.
  • High Flexibility: Retains high flexibility and oil-resistant properties, making it suitable for replacing pre-cut gaskets or as a gasket maker or sealant.
  • Durable and Long-lasting: Resists aging, weathering, and thermal cycling without hardening, shrinking, or cracking, with a temperature range of -65F to 500F (-54C to 260C) intermittent.
  • Versatile Applications: Ideal for use on valve covers and valve guides, oil pans, transmission pans, intake manifold end seals, timing gear covers, and differential covers.
  • Fast-Curing: Features a fast-curing, low odor, non-corrosive formula that meets OE silicone gasket performance specs and is OEM specified.
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About this item

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Customer ratings & reviews

4.7 out of 5 stars
stars306 ratings77 reviews
How item rating is calculated
  1. 5 stars81% (249)
  2. 4 stars11% (35)
  3. 3 stars3% (8)
  4. 2 stars2% (5)
  5. 1 star3% (9)

Reviews summary

Pros
  • : Forms a strong connection in different uses.
  • : Prevents leakage and withstands heat.
  • : Offers lower cost compared to others.
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Showing 1-3 of 77 reviews

Dec 9, 2025
keith
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Good Stuff

I use this on my rear differential cover works great no leaks so far been 3 weeks so definitely recommended good product

Helpful?5UND0MIZ7JAG499434268
May 1, 2025
WalmartCustomer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

It's a good product that I've used before, walmart.com had the best price and saved me another trip to the overpriced auto parts stores

Incentivized Review
Helpful?5UND0MIZ7JAG499434268
Jan 1, 2026
scott
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

this product has become industry standard and buying at walmart saved me approximately 40% over the price at the parts stores!!

Helpful?5UND0MIZ7JAG499434268