fits year: 2012.

( Brand: Southwest Wheel ), ( Manufacturer Part Number: RVD-8K-865-916K ), ( Part Type: Oil Bolt Trailer Hub Axle ), ( Ipn: Rvd-8k-865-916 ), ( Country Of Origin: United States ), ( UPC: 810067325462 )
The **Southwest Wheel RV-DV-8K-865-916K 8x6.5 Bolt Circle Trailer Hub and Drum Assembly** is a robust, high-performance axle component meticulously engineered for heavy-duty recreational vehicles, fifth-wheel trailers, and large utility trailers requiring superior load-bearing capacity and durability. Designed with precision, this hub and drum assembly features an **8-lug wheel pattern with a 6.5-inch bolt circle**, ensuring a secure and stable fitment for wheels ranging from 15 to 20 inches in diameter, accommodating both standard and low-profile tire setups. The **9/16-inch studs** provide ample threading for lug nuts, guaranteeing a tight, vibration-resistant connection that minimizes wear over time. At the heart of this assembly is a **12-inch oil-filled axle housing**, which houses a sealed, grease-lubricated bearing system that reduces friction, dissipates heat efficiently, and extends the lifespan of the axle by protecting internal components from dust, moisture, and debris. The **drum brake system** integrated into this hub is built to handle demanding conditions, offering reliable stopping power for trailers weighing up to **8,000 pounds per axle**, making it an ideal choice for overlanding adventures, heavy-duty towing, or commercial-grade applications. Constructed from high-grade steel, this hub and drum assembly is engineered to withstand extreme loads, harsh environments, and frequent use without compromising structural integrity. Whether hauling full loads across rugged terrain or navigating long-distance trips, this axle delivers consistent performance, quiet operation, and long-term reliability. Its compatibility with a wide range of wheel sizes and tire configurations ensures versatility, while its robust construction and sealed design minimize maintenance requirements, allowing owners to focus on the journey rather than upkeep. For those seeking a dependable, high-capacity axle solution, the Southwest Wheel RV-DV-8K-865-916K stands as a premium choice, blending strength, precision engineering, and durability to meet the demands of modern trailer applications.
### **Pros and Cons of buying a Southwest Wheel RVD-8K-865-916K 8x6.5 Bolt Circle Axle with 9/16" Studs**
#### **Pros:**1. **High Load Capacity** The 8,000-pound (8K) rating makes this axle suitable for medium to heavy-duty trailers, including utility trailers, cargo carriers, and small commercial applications. It can handle significant weight without excessive stress.
2. **Durable Construction** Built with a steel axle housing and reinforced components, this unit is designed for longevity, especially in applications where rough terrain or frequent use is expected.
3. **Standardized Bolt Pattern** The 8x6.5 bolt circle is a common size, meaning it will fit many standard trailer frames without requiring custom modifications. This makes installation easier and reduces the need for special adapters.
4. **9/16" Studs for Wheel Attachment** The 9/16" studs are a widely used standard, ensuring compatibility with most aftermarket wheels and tires. This flexibility allows for easy upgrades or replacements if needed.
5. **Drum Brake Compatibility** The drum brake setup is a reliable, low-maintenance option for trailers, though it may require periodic adjustments or pad replacements. It s also less prone to water damage compared to disc brakes.
6. **Cost-Effective** Compared to some high-end or custom axles, this unit offers a balance of performance and affordability, making it a practical choice for budget-conscious buyers.
7. **Widely Available Parts** Since this is a common axle model, replacement parts (seals, bearings, springs, etc.) are readily available from multiple suppliers, reducing downtime if repairs are needed.
8. **Good for Off-Road Use** The robust design can handle uneven terrain better than lighter-duty axles, though extreme off-roading may still require additional reinforcement.
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#### **Cons:**1. **Drum Brakes May Require Maintenance** Drum brakes can wear out over time, especially if the trailer is frequently used. They also require periodic lubrication and adjustments to function properly, unlike self-adjusting disc brakes.
2. **Limited Towing Flexibility** While the 8K rating is strong for many trailers, it may not be sufficient for very heavy loads (e.g., large boats, horse trailers, or commercial cargo exceeding 8,000 lbs). Overloading can lead to premature wear or failure.
3. **Weight Adds to Trailer Load** The axle itself adds to the trailer s overall weight, which can slightly reduce payload capacity. This is a trade-off for the added strength.
4. **Potential for Rust or Corrosion** If not properly sealed or maintained, the axle housing can develop rust, especially in humid or salty environments. Regular inspections and lubrication are necessary.
5. **No Electronic Braking (E-Brake) Option** Unlike some higher-end axles, this unit does not typically include an electric brake (E-brake) system, which can be useful for trailers requiring additional stopping power or hill-holding capability.
6. **Limited Customization** The fixed bolt pattern and stud size mean you re limited to standard wheel/tire combinations. If you need non-standard wheel offsets or sizes, compatibility may be an issue.
7. **Potential for Noise or Vibration** Over time, worn bearings or misaligned wheels can cause rattling or vibration, which may require tuning or replacement.
8. **Installation May Require Professional Help** While the bolt pattern simplifies fitting, aligning the axle properly, ensuring proper wheel bearing preload, and setting up brakes correctly can be complex tasks. DIYers may need to invest in tools or seek professional assistance.
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### **Conclusion:**The **Southwest Wheel RVD-8K-865-916K axle** is a solid, mid-range choice for trailers needing reliable, heavy-duty support without the complexity or cost of premium options. It excels in applications where durability, standard compatibility, and ease of maintenance are priorities. However, it may not be ideal for extreme loads, high-performance towing, or applications requiring advanced braking systems.
If your trailer falls within the 8,000-pound range and you prioritize simplicity and cost-effectiveness, this axle is a practical selection. For heavier loads, off-road use, or advanced braking needs, you may need to consider higher-rated axles (e.g., 10K or 12K) or alternative designs.
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### **Recommendation:** **Buy this axle if:**- Your trailer s weight is consistently under 8,000 lbs (including cargo).
- You need a durable, standard-compatible axle for utility, cargo, or light commercial use.
- You re comfortable with drum brakes and basic maintenance.
- You want a balance of performance and affordability without overpaying for premium features.
**Consider alternatives if:**- Your trailer exceeds 8,000 lbs regularly (opt for a 10K or 12K axle).
- You need disc brakes or an E-brake system for better stopping power.
- You re working in extreme off-road conditions where additional reinforcement is needed.
- You require non-standard wheel/tire setups that don t fit the 9/16" stud pattern.
**Final Tip:** Always inspect the axle for signs of wear (leaking seals, rust, excessive play) before purchasing used units. For new installations, ensure proper lubrication, wheel alignment, and brake adjustment to maximize longevity.
Trailer Axle Southwest Wheel 8-6.5 Bolt Circle 12 Oil Hub/Drum with 9/16 Studs for a 8,000 lbs. Drums are chemically cleaned and painted black in electrostatic booth. Studs are 9/16 - 18 with REACH compliant clear chromed plated per ASTM B633 Type III Class SC3. ASTM test bar method used to monitor tensile strength.
Manufactured to automotive standard in ISO/TS-16949 registered factory.