How often should your RV suspension be lubed?

July 19, 2026

By Dustin Simpson
I wanted to share this as a reminder, if you own a towable unit, to check and see if you have wet bolts or grease Zerks on your RV suspension.

How often should your RV suspension be lubricated? Well, if your unit is so equipped, you should be lubricating the Zerk every 6 months or 6,000 miles. Keep in mind that there is a total of 14 grease Zerks, 7 on each side of a towable chassis with a MORryde CRE3000 system.

Damage caused by not maintaining wet bolts, plus road conditions.

Example of not cleaning and lubricating shocks.

There is a total of 16 grease Zerks, 8 on each side of a towable chassis with a Dexter E-Z Flex system.

Example of a standard suspension system on top and a Dexter E-Z Flex on the bottom.

Bushing installation video.

Example of a nylon bushing above vs. a bronze bushing below.

Examples of a standard shackle link and a thicker shackle link with wet bolts.

Typically, when a bolt won’t take grease, you can remedy the situation by jacking up the trailer by the frame, which unloads the axle, springs and bushing. Then, it should take grease pretty easily. I have one bolt on my unit that I always need to grease with this method. You may have to rotate the position of the bolt until it will take grease.

All of you with new trailers and 5th wheels that come with the wet bolts should immediately try to grease up the wet bolts before your first trip. If a bolt doesn’t take grease, you can rotate the bolt by turning it in the tightening direction.

Hopefully, this gives you some basic understanding and a quick reminder to lube your towable suspension.

Here are some related tools and products to help for the DIY crew:

• Grease Gun with Heavy Duty Pistol Grip and 18-inch flex hose.

• All Purpose Grease, 2-Pack 14 oz. tubes.

• Grease Gun Coupler locks onto Zerk fittings.

• 8-Piece Quick Connect Greasing Accessory Kit.

• Grease Buster, this cleans and flushes out old dried grease from fittings, pins, shafts, bushings, and joints.

• CRC BRAKLEEN Brake Parts Cleaner

• Shop Towels Blue Rags, 50 Pack

• MORryde UO12-016 Heavy Duty Shackle Upgrade Kit, CRE3000 Tandem Axle (note: this is currently out of stock)

• Heavy Duty Shackle Upgrade Kit for CRE3000, Stock Equaflex 2.25″ Shackles

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2 Comments

Jim Johnson

18 hours ago

What about suspensions without wet bolts?

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Neal Davis

16 hours ago

Thank you for the general reminder to regularly inspect and service as needed or as the maintenance schedule specifies, Dustin. Have a great week and safe travels.

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How often should your RV suspension be lubed?

Bushing installation video.

Here are some related tools and products to help for the DIY crew:

More from Dustin

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