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Cotter Pin - 1/8" Thick x 1-3/4" Long

Cotter Pin - 1/8" Thick x 1-3/4" Long

Item # 165649
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Cotter Pin - 1/8" Thick x 1-3/4" Long Cotter Pin 165649
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1-3/4" Long cotter pin locks a castle nut (sold separately) in place. 1-800-940-8924 to order ABS Fasteners accessories and parts part number 165649 or order online at Free expert support on all ABS Fasteners products. Great prices and Fastest Shipping for Cotter Pin - 1/8" Thick x 1-3/4" Long. Accessories and Parts reviews from real customers.
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ABS Fasteners Accessories and Parts - 165649

  • Trailer Leaf Spring Suspension
  • Cotter Pin
  • ABS Fasteners

1-3/4" Long cotter pin locks a castle nut (sold separately) in place.


  • Cotter pin locks castle nut (sold separately) in place
  • Dimensions: 1-3/4" useable length x 1/8" wire thickness
  • Overall length: 2-1/4"
  • Quantity: 1 pin

13N175PCO0M Cotterpin 1/8" Thick x 1-3/4" Long

Replaces 101200, 165649, and 019-002-00

Video of Cotter Pin - 1/8" Thick x 1-3/4" Long

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

Video Transcript for Review of ABS Fasteners 1-3/4 Castle Nut Cotter Pin - 165649

Hi there, I'm Michael with Today we're gonna take a quick look at this one eighth of an inch cotter pin. This is going to help to secure your castle nut, so that you don't have to worry about that castle nut coming off. So each arm of this pin is about one sixteenth of an inch, so when you have them combined there, it is gonna be one eighth of an inch. As far as our length goes, our overall measurement, we're looking at right two and a quarter of an inch there. Our usable length from the inside of that bend to the shorter arm, is going to be right at, call it one and three quarters of an inch.

So this is going to be made of a rough steel construction so it should do a really good job for you making sure that castle nut stays in place so that you don't have to worry about that coming off. So if you are needing a replacement one eighth inch thick cotter pin, this is going to do a great job for you. You are just gonna get the one pin with this part number so if you need multiple, obviously just increase your quantity. So that's gonna complete our look for today. Again, I'm Michael with, thanks for watching..

Customer Satisfaction Score:

Customer Reviews

Cotter Pin - 1/8" Thick x 1-3/4" Long - 165649

Average Customer Rating:  4.8 out of 5 stars   (476 Customer Reviews)

1-3/4" Long cotter pin locks a castle nut (sold separately) in place.


We have a 2022 Forest River Forester 2551DSLE. Unfortunately it really doesn't come with a usable spare tire holder or a spare for that matter. It had a 4" steel bolt pointing straight down that would be completely worthless. No way I'd be strong enough to get a 75lb tire up there. After lots of measuring this was my only solution. BAL makes 2 products but neither would fit. I mounted 2 X 1" square aluminum bars for the tire to rest against. The winch itself mounted with 2 5/16 stainless hex bolts with nylon topped nuts to keep them from coming loose. The round bar that winches the tire into place uses a 1/8" cotter pin to hold it in place. The hole for the cotter in the bar was drilled in the wrong place so I had to cut off about 1/4" of the tube to get it to fit. I used an original Ford 16" wheel for an e450. The fitting that holds the wheel is about 7". Make sure it is centered as you winch the tire into place. Once up and properly in place it seems secure. Hopefully this will solve our problem of no spare. I would have given this 5 stars if everything would have lined up out of the box. The winch itself seems to be pretty heavy duty and this is the kind of thing that hopefully won't need to be used that often.


Just repacked bearings with new seals on my 4' x 8' folding utility trailer. Customer service was great in helping me with selecting the right parts including cotter pins. All is good now. I have been ordering from etrailer for 10 + years. Great place with great people!

Skip P - 08/02/2021


I purchased my KZ Sportster 3 1/2 years ago new and never had to use the spare. I recently decided to drop the spare and inspect it when to my surprise I discovered that the extension rod was not installed. The dealer told me it must have come that way and KZ told me the dealer must have removed it. etrailer delivered it to me two days after ordering it and 5 minutes later I had it installed. At least etrailer is concerned about customer satisfaction and I appreciate the quick response and quality product.


Product is fine but packaging was a joke. A very large box was used and only a small amount of kraft paper was used as cushioning. Six to eight of the brake assemblies could have been put in this box. Fortunately there was no damage to my assemblies. I thought that surely this would have been corrected given the number of people that have complained about it. I guess the complaints are not getting to the correct person with the authority to make a change.


Ed W was fantastic at helping me sort out exactly what I needed for my project. Ed also followed up once he was notified the package was delivered! Very happy with the support and knowledgeable staff. etrailer is at the top of list of places to purchase.


Well I'm sorry to inform you that when I opened the box. I had a left kit, a right kit and an empty bag. After looking in the box closer under the flaps I found a washer and a nut. That was all.

Customer Service will reach out to you.
-- Etrailer Expert Sierra K - 10/19/2021
Customer Service will reach out to you.
-- Etrailer Expert Sierra K - 10/19/2021


Great trailer hitch, fit perfectly for my van. Great quality...highly reccomend!


Items ordered were delivered very quickly, just a couple days. they fit well and as described. I will certainly order more items from etrailer.


It's a cotter pin!


Roger was so helpful in putting together a complete bearing kit from parts. Not many other places would take the time to sort out all the parts that normally come in a kit, that was unavailable. The OTER GUYS just tell you, sorry "supply chain issues-nothing I can do" I highly recommend etrailer. Ive been doing business with them over 10 years.


Nice upgrade of the axle on my [online] trailer. I had no confidence towing my home made teardrop camper until I installed this axle. The package was damaged in shipping and eTrailer quickly replaced the missing parts.


Not much to say about cotter pins! Saved me a trip to the auto parts store!


It’s a cotter pin. The correct one for axle crown nuts.


It's a cotter pin it work great for its intended purpose.


Great product, fast shipping! The brakes are perfect for our Airstream; I only wish that I spent the extra for self adjusting brakes


It’s a cotter pin. Four stars for service and quick delivery.


Outstanding service, excellent products and the best prices I have found. Absolutely no complaints.


Product was exactly as advertised, I am completely satisfied.


What's to tell, they bent into position, they are cotter pins.


Love the video to assist with installat ion


Excellent updates regarding the order. Website had helpful videos, and the parts arrived quickly and in great shape. The installation went well. Thank you!


Seems quality


Everything I need to service my trailer.


Great service. Received my new complete trailer brakes in 2 days. They fit and operated just like they should. Thanks etrailer.

They are still working as they should. Great product. Great company.
Tom C - 11/01/2021


It's been another easy purchase especially with Justin B helping.I'll be back for sure!

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Info for this part was:

Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Updated by:
Alexander C
Employee Mike S
Updated by:
Mike S
Employee Michael B
Installed by:
Michael B

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