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  2. Redline
  3. Hinge Pin
  4. Build Your Own Hinge
  5. Greasable Pin
  6. 4 Inch Long Pin
3/4" Diameter Greasable Hinge Pin, 4" Long with 1" Base

3/4" Diameter Greasable Hinge Pin, 4" Long with 1" Base

Item # HP344G
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Our Price: $22.31
Trailer Door Hinges
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Redline Trailer Door Hinges - HP344G
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Videos

Hinge pins are welded to either the outer frame or the gate/door and then inserted into the welded hinge pin nipples to create custom, heavy-duty hinges. Greasable pins feature a grease zerk for lubrication. Lowest Prices for the best trailer door hinges from Redline. 3/4" Diameter Greasable Hinge Pin, 4" Long with 1" Base part number HP344G can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (27)
  • Q & A (4)
  • Videos (1)
  • Photos
  • Why etrailer?

Redline Trailer Door Hinges - HP344G

  • Hinge Pin
  • Build Your Own Hinge
  • Greasable Pin
  • 4 Inch Long Pin
  • Weld On
  • Redline
  • 3/4 Inch Diameter Pin

Hinge pins are welded to either the outer frame or the gate/door and then inserted into the welded hinge pin nipples to create custom, heavy-duty hinges. Greasable pins feature a grease zerk for lubrication.


Features:

  • Build your own hinge
    • Hinge nipple sold separately
  • Great for trailers and agricultural applications

Specs:

  • Outer diameter 3/4"
  • Base diameter 1"
  • 4" long


HP34-4G 3/4" Diameter Greasable Hinge Pin, 4" Long with 1" Base





Video of 3/4" Diameter Greasable Hinge Pin, 4" Long with 1" Base

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Redline Enclosed Trailer Parts - Doors - HP344G Review

Today were going to review part number HP344G. This is the Redline -inch diameter greasable hinge pin. This hinge pin is designed to be welded to either the outer from of the trailer or the gate and door of the trailer, and then it is inserted into a hinge pin nipple to create a custom heavy duty hinge. Greasable pins featured this grease zerk fitting on the end for lubrication. In other words, when you hook the grease gun up to the zerk fitting and pump in the grease, this hole here will allow it to come out and lubricate this section here which will be inserted into a hinge pin nipple. This part is great for building your own hinge.

Its also great for trailers in agriculture applications. A few measurements on this; the length is 4 inches, the base diameter is going to be 1 inch and the diameter that slides inside the hinge pin nipple is going to be 0.75 or of an inch. Now the part number for the hinge pin nipple that is normally used with this hinge pin would be HPN342 and that is this part right here which is sold separately. In other words, the hinge pin would insert right into this nipple and when you pump it with grease it would lubricate the connection. That should do it for review on part number HP344G..


Customer Reviews

3/4" Diameter Greasable Hinge Pin, 4" Long with 1" Base - HP344G

Average Customer Rating:  4.9 out of 5 stars   (27 Customer Reviews)

Hinge pins are welded to either the outer frame or the gate/door and then inserted into the welded hinge pin nipples to create custom, heavy-duty hinges. Greasable pins feature a grease zerk for lubrication.

- HP344G
by: 08/15/2020

works like new. 862470



- HP344G
by:

The trailer door hinge lock works great. The only complaint I had was the ends don't fit the pipe very snug so i drilled and tapped some holes and added set screws. 837507



- HP344G
by:

Great product and got delivered fast 690766



- HP344G
by:

Works great, better the factory, durable, would highly recommend !! 660903



- HP344G
by:

Worked perfectly and got me going again. The grease zerk keeps the hinge smooth and noise free. 582383



- HP344G
by:

Exactly what I needed for my toy hauler door. 540123



- HP344G
by:

These ramp door hinges work great, a big upgrade from my original setup that couldn’t be lubricated and eventually rusted together 526832



- HP344G
by:

THIS COMPANY WAS EASY TO ORDER FROM AND SENT THE ORDER AS QUICK AS POSSIBLE 524329



- HP344G
by:

Awesome fit. Just what I needed. Speedy delivery 522140



- HP344G
by:

Great product! Gets the job done! 508825



- HP344G
by:

was as advertised. 400992



- HP344G
by:

Nice product. Have not welded onto trailer yet but see no issues. 385580



- HP344G
by:

Nice product. Have not welded onto trailer yet but see no issues. 385547



- HP344G
by:

Great hinge. Just wish they made bigger and longer ones too. 344150



- HP344G
by:

Thanks again worked perfect and arrived promptly. 340685



- HP344G
by:

Your products are great and your service is fantastic 338897



- HP344G
by:

Going to use two of these for a heavy duty swing away tire carrier that I am making for my offroad buggy. I think that it will be plenty strong and like the serviceablity of the zerk. 308141



- HP344G
by:

Very pleased with etrailer, my first choice. Thanks! 292331



- HP344G
by:

Parts as described, great price on shipping, excellent service before and after the sale. I will continue to shop here for my trailer parts needs. 280842



- HP344G
by:

Very happy with the quality of this hinge. For the price you can't beat it. 268149



- HP344G
by:

Second time I have bought from these guys, and they are my go to supplier for these kind of parts. Easy to navigate the site, easy check out, and received in less than a week with just the standard option! Haven't had a chance to do the work yet, but product quality seems solid and well made. Highly recommend! 257063



- HP344G
by:

Ordered multiple products,door hinges,led lights,reflective tape.The products were of good quality,priced right, excellant help from staff with answers to my questions,fast shipping. Overall quite pleased. Will be doing more business with this great company. 239696



- HP344G
by:

Thank you for the great service and a good product at a fair price. Very impressed with the service I received. 230239



- HP344G
by:

Product is exactly what i wanted and got to me in an ok time to. Would have gotten to me sooner if ups brought it to me but instead they transferred it to the post office which added an extra day. 206235



- HP344G
by:

Great product 171029


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Ask the Experts about this Redline Trailer Door Hinges




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Info for this part was:

Expert Research:
Mike L
Expert Research:
Jameson C
Installed by:
Jeff D
Updated by:
Sarah W

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