Stainless Tow Bar Anti-Rattle Shim Kit + Installation Video

Part No: CM256 Category:


129 in stock

Why should you install Anti-Rattle Hitch Shims? 

Minimises Tow Bar Rattle
Quick and Easy Installation
Made of Stainless Steel

Designed and manufactured by Couplemate™ Australia.

129 in stock

Couplemate accepts PayPal, Visa and Mastercard.

Stainless Tow Bar Anti-Rattle Shim | 4-Piece Kit

The Couplemate™ Anti-Rattle Shim kit is precisely engineered to eliminate the excessive slack between the tow bar and the hitch/receiver.

When installed, these anti-rattle hitch shims secure the receiver shank, stopping your hitch from rattling within the tow bar. Watch the official fitting guide below or read a step-by-step tutorial here.

Why Does Receiver Bar Rattle Occur?

Rattle occurs due to space between your tow bar and hitch/receiver. The best way to reduce rattle is to use tow bar shims.

Most Australian tow bars are a 50mm x 50mm box section, so our premium cast receivers have a 2-inch shank. However, not all tow bars on the market are this size, meaning that the additional space generates a rattling noise.

Couplemate™ Engineers generally recommend steering away from Hitch Clamps, as the installation is complex to do correctly and safely. Instead, customers chasing an anti-rattle tow hitch may have a better experience using our Stainless Shim Kit.

Product Specifications

  • Materials: 304 Stainless Steel
  • Length: 214mm
  • Shim Thickness:
    • 0.55mm
    • 0.90mm

Shim Kit Contents

When you buy the CM256 Stainless Anti-Rattle Shim Kit, you will receive:

  • 2 x 0.55mm Shim Plates
  • 2 x 0.90mm Shim Plates

Shim Installation Guide

The Couplemate™ Anti-Rattle Shim Kit can be fitted to your tow bar in under five minutes. Installation is easy and requires no technical knowledge.

You will need a set of pliers to cut the unnecessary material and a hammer to bend the plate.

Also of interest is the CM529 Premium Adjustable Tow Hitch (3.5t)

Capacity: 350kg
Materials: Cast Iron, Steel

The Couplemate™ CM529 is a premium Adjustable Tow Hitch designed to handle 3500kg ATM capacity.

This allows you to have precise control over the height of your tow ball, which impacts the height of the drawbar when attached to the tow vehicle. In addition to offering this flexibility, it allows you to tow different trailers at different heights conveniently.

Heavy-Duty Premium Adjustable Tow Hitch for 3500kg 50mm Tow Balls also suits Cruisemaster DO35

Couplemate™ Shim Kit also suits the following tow bar receivers:

Safety Tips

  • Always inspect your tow bar and trailer before towing.
  • Make sure that all tow bar components are properly tightened.
  • Never exceed the tow bar’s weight capacity.
  • Drive carefully and be aware of the increased stopping distance when towing.

Additional information

Weight0.1 kg
Dimensions25 × 5 × 2 cm


Installation Time

5 Minutes


Stainless Steel


0.55mm, 0.90mm

Our Service Lifetime Warranty

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

Couplemate™ is a manufacturer and vendor of high-quality towing, trailer, and caravan components. Couplemate™ Core Goods and Custom Work are guaranteed to be free of defects for the service lifetime of the product when used as intended.

Warranties are non-transferrable and Couplemate™ requires satisfactory proof of purchase prior to issuing a remedy. The full Couplemate™ Warranty Policy can be found in the Terms & Conditions: Section 8 – Consumer Guarantees & Warranty.

Warranties are in addition to your rights under the Australian Consumer Law. If something is wrong with your order, please contact our team.

60-Day Returns

After 60 years of experience, we know that life has its unpredictable moments.

All Couplemate™ orders (online, over the phone, or in-store) have a 60 day period for change-of-mind returns and exchanges. There are some items that can’t be returned and some returns may incur a 15% restocking fee.

You can view our full policy for change-of-mind returns here.


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