SuperSteer® SSE4045 Motion Control Unit 1/4″ – Under 30,000 GVWR

motion control units
SuperSteer® SSE4045 Motion Control Unit 1/4″ – Under 30,000 GVWR

$195.10 $175.59

SuperSteer® Motion Control Unit 1/4″ – Under 30,000 lb. GVWR

The SuperSteer® Motion Control Unit SSE4045 is a simple, effective and inexpensive way to control body rocking and rolling in air bag equipped vehicles. Easy installation! Comes in a pair.



The SuperSteer® motion control units are a simple, effective and inexpensive solution to common issues in air bag equipped vehicles. They control excessive sway, body roll, bounce and rocking motions.

The MCU installs in the air bag supply line(s). It contains a baffle that prevents rapid movement of air into and out of the air bags. The result is significantly improved compression, reduced sway, increased stability and stronger rebound characteristics. All of which means a smoother ride.

The MCU can be installed on the front and rear air bags. Also, different baffling ranges are available to achieve the desired ride quality and air suspension sway control.

Measure the outer diameter of your airlines for correct fit!

Front and Rear Air Lines might be different! Measure front and rear air lines separately. Generally they are different sizes.

SuperSteer's MCUs have different weight ratings!

Please make sure you have noted the GVWR of your coach. We offer 2 weight ratings for each of our MCU airline sizes- under 30,000 lbs and over 30,000 lbs. This will effect the ride quality.


All SuperSteer® Motion Control Units:

Gross Vehicle Weight (GVWR)Air Line ODMotion Control Unit
Under 30,0001/4”SSE4045
Under 30,0003/8”SSE5055
Under 30,0001/2”SSE6065
Under 30,0003/4”SSE8085

Not sure of GVWR? Here's where to find it!

You can find the GVWR of your coach on the information plate, usually located by the driver's side wall or near the main door. Please note: Do not use GCWR, as this is a combined weight rating that includes towing capacity.

Additional information

Weight0.600 lbs
Dimensions11 × 8 × 8 in

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Install Instructions

Download Installation Instructions


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Shipping Information

SuperSteer offers UPS shipping, including ground, 3 day Select, 2ND Day Air, and Next Day Air. This applies to in-stock items only.

If the item must be drop shipped or is on backorder, it make take extra time for delivery. All orders will be processed as quickly as possible, usually the same day if the order is received by 1:00pm Pacific Standard Time, Monday-Friday, except holidays.

We always try to keep a good inventory on hand, but in some cases, material delays, weather-related shipping delays or high demand for a particular item can cause a backlog. Please include all contact information so that we may contact you in case of a delay.

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