Search  for anything...

Sunnyway 6 Pack 3/8 Inch Trailer Coupler Pins Heavy Duty 4 Inch Long Towing Hitch Pins Trailer Safety Pin with Wire Lock - Secure PTO Shaft Locking Pin for Trailers, RVs, Boats, and Farm Equipment

  • Based on 18 reviews
Condition: New
Checking for product changes

Buy Now, Pay Later


As low as $3 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

Returnable until Jan 31, 2025

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, Jun 22
Order within 9 hours and 40 minutes
Available payment plans shown during checkout

Features

  • Size Matters: Forget the one-size-fits-all approach. With a precisely engineered 3/8x4 inch size, these pins offer a perfect fit for your trailer hitch, providing the strength needed for worry-free towing.
  • Cost-Effective Confidence: With 6 pins in each set, you're not just buying, you're investing. Equip yourself for various towing scenarios without breaking the bank. It's heavy-duty performance without the hefty price tag.
  • Easy Hitch, Solid Connection: No more wrestling with your hitch. These pins slide in effortlessly, guaranteeing a solid connection between your trailer and hitch. Hitching up has never been smoother.
  • Versatile Performance: From hauling construction materials to weekend getaways, these heavy-duty pins are versatile enough to handle any towing task. Their 3/8x4 inch size ensures they're up for the challenge.
  • Rust? Not a Chance: Rain or shine, these pins stand strong. Crafted from corrosion-resistant carbon steel and zinc plated, they defy the elements, guaranteeing a long-lasting solution for your towing needs.
  • Built for the Long Haul: These aren't your average pins. Our 3/8x4 inch heavy-duty pins are crafted to handle the toughest towing jobs, ensuring your load stays secure mile after mile.

Material: Carbon Steel


Size: 3/8x4 inch


Pin type: Hitch


Brand: Sunnyway


Item Diameter: 0.38 Inches


Product Dimensions ‏ : ‎ 3.94 x 0.37 x 2.56 inches; 1.17 Pounds


Item model number ‏ : ‎ FANGXX-10-100-6P-SL


Date First Available ‏ : ‎ December 13, 2023


Manufacturer ‏ : ‎ Sunnyway


Country of Origin ‏ : ‎ China


Best Sellers Rank: #131,198 in Automotive (See Top 100 in Automotive) #153 in Towing Hitch Clips & Pins


#153 in Towing Hitch Clips & Pins:


Customer Reviews: 4.5 4.5 out of 5 stars 18 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jun 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Quality product
Perfect for the use needed for. Very easy to use.
Reviewed in the United States on October 28, 2024 by christopher

  • Found them.
Local retailers don't carry this size. Looks like I know where to get them now. They are sturdy.
Reviewed in the United States on May 13, 2024 by No - B.S.

  • Works as described
Works as described and price was decent
Reviewed in the United States on August 26, 2024 by Filago

  • Working
Great quality and value.
Reviewed in the United States on May 26, 2024 by John Baldus

  • Sturdy Pins
I use pins like this for ATV towing and attachments. They are very handy. I wanted some spares and this was a good price 6 at $15. The clip seems strong and stays closed. I am certain the pin strength is more than enough for what I use them for on mowers, carts, and trailers. The finish is bright. It says they are Zinc coated for rust resistance. We will see after they are in use for a season or two. ... show more
Reviewed in the United States on March 2, 2024 by Tom

  • 6 Pack Of 3/8" Trailer Coupling Pins
This is a 6 pack of 3/8" diameter x 4" long trailer coupling pins. Each pin has a weather and corrosion resistant galvanized coating for a long service life. Each pin also has a square safety wire lock to prevent the pin from working itself loose and getting lost. Use these pins for a number of different needs like trailer couplers, PTO shaft locking for trailers, RVs, boats and farm equipment. I use several of these pins on my yard trailer and tractor. Would recommend these to anyone. ... show more
Reviewed in the United States on February 26, 2024 by D. Lavren

  • Works just as well as the top dollar ones
I think these are made in the same factory as the ones you can buy at the tractor store. The only difference is you get 6 vs 2 for almost the same price. The retainer spring is nice and stiff. The ones I was replacing were so weak a 3 year old boy could take them off. After finding that a stick or something caused the retainer to unclip and then losing what they were holding in place I replaced them. ... show more
Reviewed in the United States on February 12, 2024 by Alex

  • Light Duty – I would not trust these on the highway – I will not use these on the highway
Light Duty – I would not trust these on the highway – I will not use these on the highway I need to know how strong the steel is, so I asked the website this question, “What is the Grade rating of the pin? What is the double shear strength rating?” I received no answer whatsoever. I think it is rude indeed for the website to ignore questions. In my opinion, these pins are not suited for highway use for securing any towing at all. One of the website photographs is really frightening in its UN-safe suggestion of the use of these Hitch Pins. The really frightening photographs shows a Class III receiver hitch "secured” with one of these Hitch Pins. I am only going to use these Hitch Pins for light duty applications e.g. attaching a small wagon behind an ATV that never leaves the farm. I am embarrassed to admit that I live in the state that has the infamous notoriety of being the state with the most vehicle fatality accidents caused by trailers getting loose and stuff flying off of trucks from “failure to properly secure your load”. I will not be contributing to that statistic because my highway loads will always be properly secured. I continually check and recheck my load binding for absolutely secure binding. If you do not properly secure your loads and constantly monitor your bindings, you are risking other people’s lives. After the accident, imagine trying to claim that you had your load properly secured. Imagine the charges the highway patrol will give you. Imagine how much fun the Wrongful Death Attorney is going to have prosecuting your negligence. ... show more
Reviewed in the United States on February 8, 2024 by R. Prosser

Can't find a product?

Find it on Amazon first, then paste the link below.