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🔧 Lock it. Lube it. Love it. The pro’s choice for precision greasing.
The LockNLube 90 Degree Grease Coupler Adapter is a compact, stainless steel tool engineered for professional-grade lubrication. Featuring three hardened steel jaws, a spring-loaded collar, and a rubber seal with check valve, it guarantees a secure, leak-proof connection to Zerk fittings—even in the tightest spaces thanks to its 90-degree angle design. Trusted by thousands with a 4.4-star rating, it’s the essential upgrade for anyone serious about efficient, mess-free greasing.



| ASIN | B07STDDN1S |
| Best Sellers Rank | #3,835 in Automotive ( See Top 100 in Automotive ) #50 in Fuel Transfer & Lubrication Products |
| Brand | LockNLube |
| Brand Name | LockNLube |
| Color | Silver |
| Connector Type | Zerk Fitting |
| Customer Reviews | 4.4 out of 5 stars 1,839 Reviews |
| Exterior Finish | Stainless Steel |
| Global Trade Identification Number | 00084282640482 |
| Item Dimensions | 3.5 x 1 x 1.25 inches |
| Item Type Name | 90 Degree Grease Coupler Adapter |
| Item Weight | 1.6 ounces |
| Item dimensions L x W x H | 3.5 x 1 x 1.25 inches |
| Manufacturer | LockNLube |
| Manufacturer Part Number | LNL120 |
| Material | Metal |
| Material Type | Metal |
| Model Number | LNL120 |
| Number of Pieces | 1 |
| Size | Small |
| Thread Type | NPT |
| UPC | 084282640482 |
| Unit Count | 1 Count |
W**6
Stays put with very little bleed-over
Very handy product. It works as expected. once you tighten this down to the Zerk fitting, it stays put with very little bleed-over if any at all.
M**S
If you do a lot of greasing, you need this!
Man, it’s always a pleasure to find a quality product that truly makes your life a little bit easier! This things worth every penny in my opinion. No more grease leakage or stuck connections. Functions flawlessly. And even comes with parts to rebuild! This is something I didn’t know existed and I discovered it from an Amazon review. So I’m doing my best to pay it forward here. If you’re on the fence, just do yourself a favor and buy it! I also bought the 90 degree attachment and the super low profile one for getting into impossibly tight areas and man what great additions!
J**E
Tight spots?
Perfect for head to reach zerks. Lock n lube great company
A**E
Saves effort
Makes lubing some hard to reach areas much easier. Works well with manual or electric grease gun.
M**E
Grease fitting
Well made.
G**S
Great for tight places
My husband is a mechanic and uses grease guns daily he said this is a life saver in tight to reach places to grease equipment where a regular straight one will not fit.
O**2
Not worth buying
Coupler will not lock in good enough to force grease into the fitting. Even tried with a new grease zert and the grease still came around the fitting instead of through it.
D**S
Quick and clean
Worked great. Had a fitting I couldn't get to on my 99' XCR snowmobile and this snapped onto my other LockNLube fitting and then snapped onto the xerk fitting i was able to pump grease with both hands. Very nice. I think you would need about 1.25" clearance.
C**.
Great product. Works perfectly
I used the LockNLube 90 Degree Grease Coupler Adapter to reach some tricky grease fittings, and it worked exactly as advertised. It made accessing those tight spots much easier, and it didn’t leak or pop off under pressure. Simple to attach and remove, this adapter is a handy tool if you’re dealing with hard-to-reach areas.
O**2
Perfect Grease Coupler
I have a Kubota BX2380 and I try to keep all the grease zerks on my tractor greased up regularly. I was going through my repair manual for my Kubota BX2380 and I realized that I had missed 2 very hard to get at grease zerks on a bearing that supports the PTO shaft. There was no way I could get a needle or regular coupler on the zerk. I’d need a 90 degree coupler to be able to grease that zerk. I ordered this coupler and as soon as it came in I installed it on my grease gun. I was happy that there was enough space to get the 90 degree coupler on the zerk. It took some work to get it on and off the zerk in that awkward location but that grease zerk finally got greased. I was very pleased with this purchase and I’d recommend this grease coupler for sure.
E**C
Bien
Travail bien pour les endroi restrain
A**R
This is amazing.
This works amazing. I thought the lock n lube coupling was amazing but this works so great with it. It’s with every penny.
D**H
Real good product
Real good product
Trustpilot
1 month ago
3 days ago