3 inch or 75mm x 3t Dust Cap
Price
$5.80 Inc.GST
Shipping
3 Inch (75mm) x 3t Heavy-Duty Trailer Hub Dust Cap
Protect your heavy-duty trailer investments with this premium 3-inch (75mm) x 3t Dust Cap. Specifically engineered for 3-tonne agricultural, commercial, and boat trailer hubs, this cap acts as a vital barrier against road grime, water, dust, and environmental contaminants.
Made from high-grade pressed steel with a corrosion-resistant galvanised finish, this dust cap keeps your wheel bearings safely packed with clean grease. It prevents premature wear and unexpected hub failures, offering a precision press-fit seal designed to withstand demanding highway and off-road towing conditions.
Specifications
| Property | Measurement / Detail |
|---|---|
| Nominal Diameter | 3 Inches / 75mm (Fits 76.0mm – 76.5mm housing bores) |
| Axle Capacity Compatibility | 3 Tonne (3t) Heavy Duty Hubs / Drums |
| Material | Pressed Carbon Steel |
| Finish | Zinc-plated for superior rust prevention |
| Installation Type | Press-Fit / Drive-On interference fit |
| Application | Caravans, Large Boat Trailers, Horse Floats, Industrial Machinery Axles |
It is common for folks to call dust caps grease or oil caps. Dust caps catch excess grease. However, mechanics generally shouldn’t load the dust cap with grease. An overloaded bearing cavity and dust cap will eventually expel excess bearing grease through the rear grease seal.
Dust caps perform two functions:
- Keep dust out
- Catch excess bearing grease
Review 3-tonne equipment here:
- 3t Trailer Bearing Kit suits Alko
- 3t x 65mm Round Lazy Axle Kit.
- 2pc Electric Brake Drum Al-ko
- 3t Hydraulic Disc-Braked Axle
- 2t to 3t Lazy Trailer Hub by Al-ko and Dexter
Suit 75mm or 3-inch hubs, hub drums and disc rotors.
3-tonne unbraked axle assemblies are widespread in rural or agricultural areas. 2 x 3t axles enable a 6t trailer to carry a variety of grain or hay around the farm for distribution into wheat storage or feed for animals.
Lightweight products like hay can be stored and transported on long trailers. The maximum trailer length is 11 metres on the road. However, rural usage can support longer trailers.
Complete Range of Dust Caps
- Australian Dust Cap – Galvanised – 45.2mm
- 2t – Parallel Hub Dust Cap
- 90mm Mega MDC Dust Cap
- 70mm Aluminium Dust Cap – Screw
- 69mm or 2.75-Inch x 2t Dexter Dust Cap
- 63mm Australian Grommet Dust Cap (Pair)
- 2.441-inch x 2t Dexter Dust Cap DC2441
- 63mm Dust Cap Dolly
- 45mm Dust Cap Dolly
- 3-inch Dust Cap
- Dexter 1.98-inch Dust Cap DC1980
- 59mm Simplicity Dust Cap AXDCAP59
Frequently Asked Questions (FAQ)
Q: How do I know if this 3-inch cap will fit my trailer?
A: This cap is specifically designed for large 3-tonne capacity axles. To ensure a perfect match, use a digital caliper to measure the exact inner diameter of your hub’s bore where the cap seats; it should measure approximately 76mm to 76.5mm.
Q: What is the best method for installing this dust cap without damaging it?
A: To avoid dimpling or bending the face of the steel cap, we recommend using a dedicated hub dust cap installation tool or a hollow pipe/socket that fits neatly over the outer lip of the cap. Gently and evenly tap it into place using a rubber mallet or hammer.
Q: Why is my dust cap loose or repeatedly falling off?
Additional information
| Weight | 0.15 kg |
|---|---|
| Dimensions | 8 × 8 × 4 cm |
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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