bing tracking image
  1. Trailer Leaf Spring Suspension
  2. TruRyde
  3. Camper
  4. Car Hauler
  5. Utility Trailer
  6. Suspension Bolts
Wet Equalizer Bolt with Castle Nut and Grease Zerk - 4-11/16" Long - 7/8" Diameter

Wet Equalizer Bolt with Castle Nut and Grease Zerk - 4-11/16" Long - 7/8" Diameter

Item # TRFA71063
Our Price: $26.43
Trailer Leaf Spring Suspension
Orders above $50 qualify for Free Shipping
Shipping Weight: 0.86 lbs
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Customer Photos


Need help with installation?
Locate installers near me
4-11/16" Long suspension bolt features a pressed-in grease zerk that allows for easy lubrication to keep moving elements functioning properly. Castle nut included. Great Prices for the best trailer leaf spring suspension from TruRyde. Wet Equalizer Bolt with Castle Nut and Grease Zerk - 4-11/16" Long - 7/8" Diameter part number TRFA71063 can be ordered online at or call 1-800-496-5010 for expert service.
  • All Info
  • Reviews (94)
  • Q & A (0)
  • Videos (1)
  • Photos
  • Why etrailer?

TruRyde Trailer Leaf Spring Suspension - TRFA71063

  • Camper
  • Car Hauler
  • Utility Trailer
  • Suspension Bolts
  • 4-11/16 Inch Long
  • 7/8 Inch Diameter
  • TruRyde

4-11/16" Long suspension bolt features a pressed-in grease zerk that allows for easy lubrication to keep moving elements functioning properly. Castle nut included.


  • Secures equalizer to center hanger of tandem- or triple-axle trailer suspension system
  • Allows for easy lubrication to keep moving parts functioning at their best
  • Included castle locknut secures bolt with cotter pin (not included)


  • Length: 4-11/16"
  • Diameter: 7/8"
  • Length of threaded portion: 1"

FA-7-1-0 and FA-6-3 TruRyde Wet Equalizer Bolt with Castle Nut and Zerk

Replaces 166078 Equalizer Bolt with Nut

Video of Wet Equalizer Bolt with Castle Nut and Grease Zerk - 4-11/16" Long - 7/8" Diameter

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

Video Transcript for TruRyde Trailer Suspension TRFA71063 Review

Today we're going to take a look at the 4 11/16 long wet equalizer bolt with the greased zerk fitting on one end. It comes with a castle nut and this is for double eye springs. Now this bolt will secure your equalizer to the center hanger of tandem or triple axle trailer suspension system. The greased zerk fitting here on this end will allow for easy lubrication to keep your moving parts functioning properly. The zerk fitting right here will allow you to grease the inside of the bushing. Basically you just put your grease gun on there, pump the grease into the zerk fitting.

It will go on the inside, come out this hole and lubricate the inside of the bushing. It does also come with this castle nut which is used to secure the bolt in place and then once you install this, they do require you to use a cotter pin to slide through there to hold everything into place. Now the cotter pin is not included. We do sell that separately on our website. The specs on this, the bolt is a grade 2 bolt. The overall length, which will be measured from the very bottom of the head to the very end, is going to be right at 4 11/16th long.

The bolt size is a 7/8" diameter bolt, 9 threads per inch. Then the nut size that installs right here on the end, that is a 1 5/16th size. I happen to have an example of a 1 5/16th socket and you can see it fits exactly on there to tighten it down. That should do it for the review on the 4 11/16th long wet equalizer bolt with the greased zerk fitting and the castle nut for double eye springs.

Customer Satisfaction Score:

Customer Reviews

Wet Equalizer Bolt with Castle Nut and Grease Zerk - 4-11/16" Long - 7/8" Diameter - TRFA71063

Average Customer Rating:  4.8 out of 5 stars   (94 Customer Reviews)

4-11/16" Long suspension bolt features a pressed-in grease zerk that allows for easy lubrication to keep moving elements functioning properly. Castle nut included.


The postal service mishandled my order and I would like to thank etrailer for sending me another package for free. I received them today. I've always had fair pricing and quality parts from them.


heavy duty and the zerk fitting is help ful


Fits perfectly with the new 11" equalizers I replaced on my triple axle trailer. I've heard complaints they don't come with the cotter pin. They were $.37 a piece people. Just go buy some. I always use etrailer for my trailer parts. Everything is good quality, fits perfectly, and arrives on time.


I love these things. I pull heavy loads day in and day out. 3-500 miles a day everyday. I was having to replace all the undercarriage bolts and shackles once a year due to wearing the bolts in half and making the shackle bolt holes oblong shaped. There was so much slop it worried me to be on the highway doing higher speeds. I did my one your inspection and there was very little wear. And that made me happy. Last time I had to stay up until 4am with one of my workers and cut everything out from under the trailer. Then re-weld and and install everything back. It's a serious problem when you don't have time to do it. This product will help save on downtime, labor and money.


Great replacement for the slipper-leaf shackle on my dump trailer. The zerk on my OEM unit snapped off and the threads were seized. It was easier to replace, then to fix. Took me 10 minutes to remove the old one and install the new one!

Works great! Easy to grease, and grease still flows fine into the shackle!
Dave J - 04/23/2021


This product here you looking at I couldn't found it at any trailer site or store because of the square end except at etrailer love you guys was cheap fast shipping no hammer needed fits just right..


Easy to find on website with about of options as well as fast shipping and great pricing


Would be 5 stars but cotter pin should come with item

Still holding up
Scott - 02/24/2020


Allowed me to complete repairs to stock trailer. Wish I had found etrailer earlier for the components that were sourced locally. Will use etrailer next time as my first choice source.


Good quality springs and bolts, revived the suspension on the trailer. Quck turn around and delivery.


Was just as described and worked great with the equalizers I ordered


This is a must have for anyone with a heavy load. The life of my suspension has been extended, thanks etrailer!


Nicely made, but it doesn't come with cotter pins!


All products received were correct, quality of parts exceeded my expectations. Etrailer employees go above and beyond for the customer, and their knowledge of products is outstanding! Will definitely return as a customer.


Feels solid even though it's greasable. Allemite seems quality unlike some other greasable bolts I've had.


Greasable bolts to go with new equalizer bars. Great prices , fast shipping.


Everything is excellent, the package arrived way faster than I thought. The only problem is I forgot to add 2 bolts to my list. I will definitely be ordering from etrailer from now on.


Good product has worked great on my dump trailer, fast shipping


This looks to be a quality part. Including a 5/32" x 1 3/4" cotter pin, while not a big issue, would be nice.


Perfect placement. Grease fitting great. Definitely worth the money


Good products and timely delivery with value


After a year, suspension is still performing just as it should. Thanks!


Donna P answered all my questions and personally communicatied via email that our order was on the way. Excellent Job


[Too] slow


Good quality bolt and castle nut, exact length required ready to install at a good price.

Show More Reviews

See what our Experts say about this TruRyde Trailer Leaf Spring Suspension

  • How Often Should Wet Trailer Equalizer Bolt Get Greased
    It depends on how much use the trailer gets. If you do not use it very often then it is not working as much and the grease will not break down as quickly. So you will want to grease it at least once a year. If you do use the trailer frequently you might want to check it a few times a year or when you notice the ride quality has changed because the suspension is not moving as freely as it used to.
    view full answer...
  • What is the Torque Rating for an Equalizer Bolt
    Equalizer bolts, like the TruRyde Wet Equalizer Bolt, # TRFA71063, should be torqued to yield. Equalizer bolts are not given a specific torque rating because they should allow some movement of the equalizer. If they are torqued down too tight, the equalizer will have difficulty moving and that could bind up your trailers suspension. Simply tighten the bolts down until they are tight, but still allow the equalizer to move. Keep in mind, the cotter pin is not included with this bolt. The...
    view full answer...
  • Which Wet Bolt to Use with the Slipper Spring Equalizer TRFA71063
    For a 7/8 inch bolt to use with the # TREQ4541 we only have the part # TRFA71063 which is 4-11/16 inches in length. It may seem a little long but it would still work well. The wet bolts are just as strong as the non-wet bolts we carry.
    view full answer...
  • Recommended Bolt Compatible with Center Hanger for 2 Inch Wide Slipper Springs
    Based on your previous order, you will want the Wet Equalizer Bolt with Castle Nut and Grease Zerk - 4-11/16" Long - 7/8" Diameter # TRFA71063. This is compatible with the center # 29-5-1.
    view full answer...
  • Center Bolt to Use with Equalizer # 13-108-3
    You'd want to use a center bolt like part # TRFA71063 in the center hole of equalizer part # 13-108-3. Your current springs should still work just fine as it would just rest on the plate.
    view full answer...
  • Is there a Center Bushing for Equalizer TREQ1304
    The center hole for equalizer # TREQ1304 is 7/8 inches in diameter. The closest match we have to a bushing that will reduce that is # TRBU11568 which has a 7/8 inch outer diameter and 9/16 inch inner diameter. But it is 1-3/4 inches long so it will come up short. If possible you could just use a 7/8 inch wet bolt, # TRFA71063, provided that the hanger mounting hole is large enough or can be bored out to 7/8 inches safely.
    view full answer...
  • Availability of Equalizer Bolt, Cotter Pin, and Castle Nut for Tandem-Axle Trailer Hanger Kit
    For the middle equalizer bolt and nut that fits the Tandem-Axle Trailer Hanger Kit for 2" Slipper Springs # APTT6SE you need the Equalizer Bolt with Cotter Pin and Castle Nut - 7/8" Diameter # 166078. If you would like to upgrade to a wet bolt, there is also the Wet Equalizer Bolt with Castle Nut and Grease Zerk - 4-11/16" Long - 7/8" Diameter # TRFA71063 available as well.
    view full answer...
  • Bolt Recommendations for a Equalizer for 2 inch Slipper Springs
    For the Equalizer for 2 inch Wide Slipper Springs # TREQ1344 you will want to use a Wet Equalizer Bolt with Castle Nut and Grease Zerk # TRFA71063 for the center bolt hole. This bolt has a grease (zerk) fitting. For the side bolt hole that the spring will mount to you will want to use a Spring-Eye Bolt with Locknut # 166079. For a keeper bolt you would want a Leaf Spring Center Tie Bolt with Nut # 38-4TB. I attached an FAQ article on slipper spring suspension setups for you to check out also.
    view full answer...
  • Slipper Leaf Springs, Equalizer and Wet Bolts for 2009 PJ Dump Trailer 7 x 14 14K
    Yes, the leaf spring part # SP-232275 would work great on a tandem axle 14k trailer like your PJ dump trailer. The equalizer part # TREQ4541 is the correct one to use as well with this spring and trailer. For wet bolts you'd need the part # TRFA71063 for a 7/8 inch center bolt and then part # 126B2 for the 9/16 inch bolts and you'd be set.
    view full answer...
  • Does The Kodiak Disc Brake Kit K2HR758DAC Have Oil Bath Caps Included
    Both of the 7,000 pound Kodiak disc brake kits # K2HR758DAC and # K2HR758D do indeed use oil bath caps, which are included. The only difference between the 2 will be the coatings. The # K2HR758D will have a raw finish on the rotors and the calipers and brackets will have a black E-coat finish. On the other hand, the # K2HR758DAC will have the rotors, calipers, and brackets will all have Dacromet plating, which will have superior corrosion resistance. The TruRyde # TRFA71063 will actually...
    view full answer...
  • Does Trailer Suspension Equalizer TREQ1304 Require Bushings
    The large center hole on equalizer # TREQ1304 should be 7/8 inches in diameter. I checked your order and the equalizer bushings you bought were # TRBU13871. These have a 7/8 inch INNER diameter but the outer diameter is 1-1/8 inches which is why they will not fit. You can use bushings that have an outer diameter of 7/8 inches. We have # TRBU11568 but it is 1-3/4 inches long which is 1/4 inch shorter than the width of the equalizer. It has an inner diameter of 9/16 inches. We also have...
    view full answer...
  • What Is The Difference Between Center Hangers TRHG291-C and 29-1?
    The Center Hanger for TruRyde Equalizer # TRHG291-C is specifically designed to be used with the Equalizer for 2" Wide Slipper Springs # TREQ4541. This is designed to work with trailer axles from 6,000-8,000lbs. The Redline Center Hanger for 2" Wide Slipper Springs - 3-1/2" Tall # 29-1 does have identical measurements and will bolt up using the Equalizer Bolt with Cotter Pin and Castle Nut # 166078 or Wet Bolt # TRFA71063. This hanger is rated for 3,500-9,000lb axles. So it will carry...
    view full answer...
  • Recommended Wet Bolts With Screw-In Zerk Grease Fittings
    We offer 2 wet bolts that may work for you because they have screw-in Zerk fittings. The first wet bolt I recommend is part # 34007-187-00. This is a step wet bolt designed to work with 1-3/4 inch double eye leaf springs. The overall length of this bolt is 3-7/16 inches and the usable length is 3 inches. This is a 9/16 inch diameter bolt. These are sold individually so you would need to enter the quantity you need when ordering. The other wet bolt I recommend is part # 126A1. This bolt...
    view full answer...
  • 12 Inch Slipper Spring Equalizer Kit Recommendation
    The only 12 inch slipper spring equalizer we offer is the part # E4541-Z. For shackle bolts you would need the part # 166079, for equalizer bolts you would need # TRFA71063, cotter pin part # 165649, and for spring keeper bolts part # 7-7. We do not have all of this in a kit though.
    view full answer...
  • Wet Shackle Bolts to Reduce Noise from Tandem Axle Travel Trailer Suspension
    If you think the cause for the noise on your 2015 Jayco Whitehawk 24RBS tandem-axle travel trailer is from the normal travel of the suspension components (leaf springs, equalizers and shackle straps), you might switch over to wet bolts. The squeaking noises from trailer suspension can be reduced by replacing standard shackle bolts with wet bolts. Wet bolts like # TRFA71063 and # 126B2 have a grease zerk fitting that allows you to maintain a layer of grease between the surfaces of those...
    view full answer...
  • Available Trailer Suspension Spring Hangers, Wet Bolts and Bushings
    We do offer all trailer suspension components including leaf spring hangers, suspension bolts, bushings, etc. All of these are shown on the linked page. I also linked the specific pages for hangers like # 28-5, wet bolts like # TRFA71063 and bushings like # TRFA71063. These item are not weight-rated so you can simply select them by their dimensions. Also included is an article that covers the process of converting a trailer to hydraulic disc brake operation. A link to all disc brake...
    view full answer...

Do you have a question about this Trailer Leaf Spring Suspension?

  • Why

    At we guarantee:
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate trailer leaf spring suspension information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Lindsey S
Written by:
Lindsey S
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee John H
Expert Research:
John H
Employee Jeff D
Installed by:
Jeff D
Employee Wilson B
Updated by:
Wilson B

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.