American trailer connector coupler ball cover
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Product Introduction
American Trailer Connector Coupler Ball Cover - Premium Protection for Your Towing System
Qingdao RuiRui's American trailer connector coupler ball cover protects important pulling parts at the business level. For Class I–V towing systems, our galvanized caps are made of HDPE that is precision-molded and has ±0.005mm limits. These covers have a Shore A hardness value of 60 to 80, so they can handle temperatures from -40°F to 200°F. They are also chemically resistant to oil lubricants and road salts. With over 20 years of experience making things and ISO 9001:2015 approval, we can offer full OEM/ODM customization with a minimum order quantity of 1000 pieces for markets in North America, Europe, and Southeast Asia.

What Makes Our American Trailer Connector Coupler Ball Cover Essential?
The money you spent on your tow system was well spent. Without the right security, hitch balls can fail in three very important ways. First, rust in the environment makes surface pits that make it harder for your trailer coupler to work smoothly. Second, dirty grease turns into a gritty substance that wears things down faster. Third, getting water into current tow systems causes electrical ground problems.
These issues are fixed right away by our protected covers. You get a precisely designed shield that keeps the lubrication at its best and stops damage from the environment. This greatly increases the useful life of your tools.
Technical Specifications
|
Parameter |
Specification |
|
Material |
UV-stabilized HDPE/Soft PVC/EPDM Rubber |
|
Shore A Hardness |
60-80 |
|
Temperature Range |
-40°F to 200°F (-40°C to 93°C) |
|
Dimensional Tolerance |
±0.02 inches (±0.5mm) |
|
Ball Size Compatibility |
1-7/8", 2", 2-5/16" |
|
Chemical Resistance |
Petroleum lubricants, road salts, UV radiation |
|
Color Options |
Black, Gray, Custom colors available |
|
Minimum Order Quantity |
1000 pieces |
|
Surface Finish |
Galvanized/Chrome-plated options |
|
Retention System |
Integrated tether strap |
Key Advantages
Precision Manufacturing: Our CNC milling skills make sure that every part fits perfectly every time. We can make covers with limits that generic covers just can't match because we use more than 20 precise tools and Swiss-style production.
Superior Material Science: We only use materials that are fixed by UV light and don't crack in harsh weather. Even in the cold winters of Canada, your covers stay flexible. In the hot summers of Texas, they stay stable in terms of shape.
Integrated Design Features: Each cover comes with a method for holding it in place. During pulling, you'll never lose another cover again. The tether attaches safely to the hitch receiver or the tongue of your trailer.
Chemical Resistance Testing: Lithium grease, calcium chloride road treatments, and fuel contact are all things that our lab confirms as being resistant. This means that it will work reliably in the real world.
Quality Control: All of it is backed by ISO 9001:2015 approval. As required by AQL standards, we check the first item and take samples from groups. You get papers with all three dimensions and material certificates.
Critical Applications
Marine and Coastal Operations
Saltwater environments destroy unprotected hitch balls within months. Our American Trailer Connector Coupler Ball Cover creates a complete moisture seal that prevents galvanic corrosion. Boat trailer operators see dramatic reductions in maintenance costs.

Commercial Fleet Management
Construction and landscaping crews depend on reliable coupling. Abrasive job site conditions contaminate grease with sand and cement dust. Our covers maintain clean lubrication layers, ensuring smooth operations and reducing downtime.
RV and Recreational Storage
Long-term storage exposes your equipment to UV radiation and acid rain. Our covers preserve hitch ball surfaces and prevent grease degradation. When towing season returns, your equipment performs like new.
Heavy-Duty Commercial Applications
Frequent coupling and uncoupling operations demand consistent performance. Our covers eliminate the need for degreasing and re-lubrication between trips. This saves labor time while extending component life.
Why Choose Qingdao RuiRui?
You deserve factory-direct pricing without compromising quality. Our 17 years of OEM/ODM experience serves automotive and industrial clients worldwide. We understand your requirements for reliable towing accessories.
Our one-stop production capability covers everything from raw material procurement to export-ready packaging. You work with a single trusted partner instead of managing multiple suppliers.
Quality control happens at every stage. From incoming material inspection through final product testing, we maintain strict standards. Our CMM inspection and optical comparators verify every critical dimension.
Global logistics support means your orders arrive on time. Whether you need EXW, FOB, or DDP terms, we handle the complexity of international shipping.
Custom Solutions Available
Standard products serve most applications, but your requirements might be unique. Our engineering team provides design-for-manufacturability analysis for custom projects. We optimize your designs for production efficiency while maintaining performance standards.
OEM branding options include custom colors, logo placement, and packaging design. Private label programs help you build brand recognition in your market.
Prototype development starts with no minimum order quantity. We machine sample parts for testing and validation before committing to production tooling.

Contact Us
Ready to protect your towing investment? Our American trailer connector coupler ball cover solutions start with understanding your specific requirements. Upload your specifications for free analysis, and we'll provide pricing within 48 hours.
Prototype delivery typically takes 1-2 weeks. Production runs complete in 4-7 weeks depending on quantity and customization requirements.
Ready to enhance your towing system protection? Contact our engineering team today: kshdhardware@qdkshd.com.
Send Inquiry
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