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💙 Stay slick, stay unstoppable — marine-grade grease that won’t quit!
Sta-Lube SL3121 is a premium blue aluminum complex marine grease designed for superior water resistance and adhesion. Formulated with a polymer-enhanced base oil, it protects bearings and metal parts in freshwater, saltwater, and off-road conditions. Rated for high temperatures up to 469°F, this 14 oz. tub is ideal for boat trailers, 4WD vehicles, and marine equipment, delivering reliable, long-lasting lubrication trusted by professionals and enthusiasts alike.
| ASIN | B000CPJMY8 |
| Best Sellers Rank | #52,193 in Automotive ( See Top 100 in Automotive ) #11 in Heavy Duty Vehicle Greases & Lubricants |
| Brand | Sta-Lube |
| Brand Name | Sta-Lube |
| Compatible Material | Metal |
| Container Type | container |
| Customer Reviews | 4.7 out of 5 stars 917 Reviews |
| Global Trade Identification Number | 30072213312103 |
| Included Components | Grease |
| Item Form | Paste |
| Item Type Name | Marine Boat Trailer And 4 X 4 Wheel Bearing Grease |
| Liquid Volume | 14 fluid ounces |
| Manufacturer | Sta-Lube |
| Material | Aluminum |
| Model Number | SL3121 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Package Information | container |
| Part Number | SL3121 |
| Recommended Uses For Product | Water |
| Specific Uses For Product | Marine, Freshwater, Saltwater, 4WD, Boat Trailers |
| UPC | 072213312102 |
| Unit Count | 14 Ounce |
| Upper Temperature Rating | 469 °F |
| Viscosity | 21 sq-mm/s |
| Warranty Description | Manufacturer Warranty |
J**O
Reliable choice
I recently used the Sta-Lube SL3121 Water-Resistant Marine Grease to repack the wheel bearings on my boat trailer, and overall, I’m quite satisfied. The grease has a thick, tacky consistency and is notably water-resistant, which is crucial for marine applications. After several trips, the bearings continue to perform smoothly without any signs of water intrusion. However, I noticed that the grease is a bit more challenging to clean off compared to others I’ve used, likely due to its water-resistant properties. Despite this minor inconvenience, I believe it’s a reliable choice for protecting trailer bearings in wet conditions.
D**N
Good product at reasonable price
I got this to lube bearings on a mini bike. It seems to work great. I can also use it on anything that needs grease that might get wet.
S**7
Great for Vintage Bicycles
I use this for greasing all the bearings (bottom bracket, hubs, headset, pedals etc.) of my vintage touring bicycles. It works very well for this purpose, as the grease seems to resist moisture exposure (rain storms, puddles) better than traditional wheel bearing grease does. The consistency of this grease is slightly different (thicker) than traditional bearing grease. I've noticed no difference in rolling resistance compared to using regular grease. Good stuff!
T**N
Good.
Good product.
V**C
Container was less than half full
Product was less than half full. It was barely enough to service 2 axles. I would not buy again.
B**4
Great
Great
A**R
Great price / good quality
I used it on my outboard steering, worked nicely.
T**Y
Does what it claims.
Best grease I have ever used on my boat trailer. Will not wash out even after several launches. Boat is used exclusively in salt water and I usually had to replace wheel bearings every 8 to 10 months. More than a year since using this grease and the wheel bearings still have no pits or signs of wear..
E**Z
Engrase e impermeabilización
Utilizado en el engrase exigente de bicicleta de montaña
M**.
Excelente
Excelente
M**Z
De buena calidad
Es tal cual como se muestra en las imágenes
H**O
Muito boa
Realmente funciona para as aplicações indicadas
E**N
Excelente
Excelwnte
Trustpilot
2 weeks ago
1 month ago