The NEW & IMPROVED G4 Locking Collar has been rebuilt from the ground up. Over 50% stronger than the 00-Original Locking Collars. It Will fit PowerStick-53" & PowerStick-20", so if you need a replacement this is it.
If you own a PowerStick-53" Gen1 or Gen2, this is a MUST HAVE to replace your existing 00-Original.
Compare to your navigation light base and make sure it says Perko.
If you are looking for a collar for your white running/anchor light, this will NOT fit. Click here for link to Perko Large Thread for your white running/anchor light. Any questions, please call us 800-488-5512
![G4 YOLOtek Locking Collar Fits Tight on Gen1/2/3/4 [Perko Large Threaded G4] - YOLOtek ~](http://cdn.shopify.com/s/files/1/0807/5815/products/LockingCollars-Specs-ThreadedLarge-01_32f026aa-9494-4324-bbb3-fca649eab8ef_{width}x.jpg?v=1628177651)
![G4 YOLOtek Locking Collar Fits Tight on Gen1/2/3/4 [Perko Large Threaded G4] - YOLOtek ~](http://cdn.shopify.com/s/files/1/0807/5815/products/LockingCollar-LargeThread_b1e256b8-a913-4696-952a-9c2f16a5c135_{width}x.jpg?v=1628177651)
![G4 YOLOtek Locking Collar Fits Tight on Gen1/2/3/4 [Perko Large Threaded G4] - YOLOtek ~](http://cdn.shopify.com/s/files/1/0807/5815/products/LockingCollars-Specs-ThreadedLarge-01_32f026aa-9494-4324-bbb3-fca649eab8ef_530x@2x.jpg?v=1628177651)
![G4 YOLOtek Locking Collar Fits Tight on Gen1/2/3/4 [Perko Large Threaded G4] - YOLOtek ~](http://cdn.shopify.com/s/files/1/0807/5815/products/LockingCollars-Specs-ThreadedLarge-01_32f026aa-9494-4324-bbb3-fca649eab8ef_1024x1024@2x.jpg?v=1628177651)
![G4 YOLOtek Locking Collar Fits Tight on Gen1/2/3/4 [Perko Large Threaded G4] - YOLOtek ~](http://cdn.shopify.com/s/files/1/0807/5815/products/LockingCollar-LargeThread_b1e256b8-a913-4696-952a-9c2f16a5c135_1024x1024@2x.jpg?v=1628177651)