1. Boat Trailer Parts For Sale
  2. sku: 5106397461172722
  3. SOUTHWEST WHEEL MHD-122459-RCB

SOUTHWEST WHEEL MHD-122459-RCB Bolt Circle Mobile Trailer 810067325417 5-9.4 Hub/drum Axle

fits model: 400. year: 2012.

Mhd-122459-rcb Southwest Wheel 5-9.4 Inch Bolt Circle 12 Mobile Home Trailer Hub/drum 4 400 Axle

( Brand: Southwest Wheel ), ( Manufacturer Part Number: MHD-122459-RCB ), ( Part Type: Bolt Trailer Hub Axle ), ( Country Of Origin: United States ), ( UPC: 810067325417 )

Review SOUTHWEST WHEEL 5-9.4 Inch Bolt Circle Mobile Home Trailer Hub/drum Axle fits 400 2012

The **Southwest Wheel MHD-122459-RCB 5-9.4" Bolt Circle 12 Mobile Trailer Hub/Drum Assembly (400 Axle)** is a premium, heavy-duty braking system designed to deliver exceptional performance, durability, and reliability for medium to large mobile trailers, including utility trailers, horse trailers, and commercial cargo haulers. Engineered with precision, this hub and drum assembly combines robust construction with advanced braking technology to ensure consistent stopping power and extended service life, even under demanding conditions. The **5-9.4" bolt circle** accommodates a wide range of wheel sizes, providing versatility for custom trailer builds or replacements, while the **12" mounting pattern** ensures a secure and stable fit on the axle. Built around a **400-series axle**, this hub is engineered to handle substantial loads with minimal wear, making it an ideal choice for trailers requiring high torque resistance and long-term durability. The **drum brake system** features a self-adjusting mechanism, reducing maintenance requirements while maintaining optimal braking efficiency, and the **RCB (Rust-Resistant Coating)** finish protects against corrosion, extending the component s lifespan in harsh environments. Whether used in recreational, agricultural, or commercial applications, this hub and drum assembly delivers a seamless blend of strength, performance, and low-maintenance operation, ensuring safe and efficient trailer handling for years to come.

### **Pros and Cons of buying a Southwest Wheel MHD-122459-RCB 5-9.4" Bolt Circle 12" Mobile Trailer Hub/Drum with 400 Axle**

#### **Pros:**

1. **Compatibility with Common Trailers** The 5-9.4" bolt circle is a standard measurement for many mobile trailers, making it a versatile replacement part. This reduces the need for custom modifications, saving time and money.

2. **Durability and Load Capacity** The hub/drum assembly is designed for a 400 axle, which suggests it is built to handle moderate to heavy loads, making it suitable for utility trailers, cargo carriers, or small enclosed trailers.

3. **Sealed Bearings** High-quality hubs typically feature sealed bearings, which reduce friction, extend the lifespan of the assembly, and minimize maintenance requirements compared to open bearings that need frequent lubrication.

4. **Easy Installation** As a direct replacement part, it should fit standard trailer frames without requiring extensive modifications. This simplifies the replacement process, especially for DIYers or those without specialized tools.

5. **Cost-Effective for Common Applications** Since this is a widely available part, it is likely priced competitively compared to custom or specialty hubs, offering good value for standard trailer use.

6. **Reliability for Basic Use** For trailers used occasionally or for light-to-moderate duty (e.g., moving tools, hauling small loads), this hub should perform reliably without frequent failures.

7. **Availability of Spare Parts** Being a common component, replacement bearings, seals, or even the entire hub can be sourced relatively easily if needed.

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#### **Cons:**

1. **Limited Heavy-Duty Performance** While the 400 axle suggests moderate load capacity, it may not be suitable for extreme loads, off-road use, or commercial-grade trailers. Overloading could lead to premature wear or failure.

2. **Potential for Wear Over Time** Like all mechanical components, the bearings and seals will degrade with use, especially if the trailer is frequently driven or exposed to harsh conditions (e.g., salt, moisture, or extreme temperatures). Regular maintenance is required to prolong its life.

3. **No Integrated Brakes (Standard for Many Hubs)** Unless specified otherwise, this hub is likely a non-braking unit. Trailers requiring brakes will need a separate braking system, which may not be included with this purchase.

4. **Quality Variability** Depending on the manufacturer or seller, the quality of materials or assembly may vary. Cheaper alternatives might use lower-grade bearings or thinner walls, reducing longevity. Always verify the seller s reputation.

5. **Compatibility Issues with Non-Standard Frames** While the bolt circle is common, some trailers may have unique frame designs or spacing requirements. Double-check measurements before purchasing to avoid mismatches.

6. **Limited Warranty or Support** Some aftermarket parts come with minimal or no warranty. If the hub fails prematurely, replacement costs could outweigh the initial savings.

7. **No Rust-Protection Coating** Unless specified, the hub may not have a corrosion-resistant coating. Trailers exposed to wet or salty conditions (e.g., coastal areas) may require additional protection or more frequent inspections.

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### **Conclusion:**

The **Southwest Wheel MHD-122459-RCB 5-9.4" Bolt Circle 12" Mobile Trailer Hub/Drum with 400 Axle** is a practical and cost-effective choice for **light-to-moderate duty trailers** where compatibility with standard bolt patterns is a priority. It offers ease of installation, decent load capacity, and reliability for basic use, making it ideal for DIYers or those replacing worn-out hubs on utility, cargo, or small enclosed trailers.

However, it is **not ideal** for high-load applications, off-road trailers, or commercial use without reinforcement. Owners should prioritize **regular maintenance**, particularly bearing and seal checks, to ensure longevity. Additionally, verifying the hub s specifications (e.g., bearing type, material thickness) and the seller s reputation can help avoid quality issues.

For **heavy-duty or high-performance trailers**, a more robust hub (e.g., with reinforced bearings or braking capabilities) may be necessary. For **standard trailers**, this part provides a solid, budget-friendly solution.

### **Recommendation:** - **Buy this hub if:**

- You need a direct replacement for a standard 5-9.4" bolt circle trailer.

- Your trailer is used for light-to-moderate loads (e.g., tools, small equipment).

- You plan to perform regular maintenance (greasing bearings, checking seals).

- You want a cost-effective, widely available part without custom modifications.

- **Consider alternatives if:**

- Your trailer requires braking and this hub does not include brakes.

- You frequently drive in harsh conditions (e.g., salt, mud) and need corrosion-resistant components.

- Your trailer carries heavy or extreme loads, in which case a **heavy-duty hub with reinforced bearings** may be necessary.

- You prefer a hub with a longer warranty or premium build quality.

**Final Verdict:** This hub is a **good value for standard trailer use** but should not be relied upon for heavy-duty or high-stress applications without additional reinforcement. Always inspect the hub during installation and maintain it properly to maximize its lifespan.

Details:

ASTM test bar method used to monitor tensile strength. Drums are chemically cleaned and painted black in electrostatic booth. Axle Southwest Wheel 5-9.4 Bolt Circle 12 Mobile Home Trailer Hub/Drum for a 4,400 lbs. Will use a 68149 Inner bearing 67048 outer.

Includes Rim Clamps 9/16 18 Bolts.

part #: mhd122459 price

  • $66.27

specifications traiparboa:

  • for models: 400
  • for years: 2012
  • brand: Southwest Wheel
  • mpn: Mhd-122459-rcb
  • part type: Bolt Trailer Hub Axle
  • country of origin: United States
  • upc: 810067325417

shipping traiparboa:

  • class: Expedited
  • service: FedEx 2Day
  • transit: 2-3 Days
  • type: Fixed
  • carrier: FedEx
  • cost: $9.99

seller traiparboa:

  • rating: 99.9%
  • city: Dallas, Texas
  • # reviews: 9949

payments traiparboa:

  • wallet: Apple-pay
  • other
  • credit card: Discover

returns traiparboa:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Seller

offer traiparboa:

  • sold: 0
  • options: Ship-to-home
  • availability: In Stock
  • started: March 24, 2026

general traiparboa:

  • condition: New
  • Parts Accessories > Boat Parts > Trailer Parts
for models: 400, for years: 2012, part type: bolt trailer hub axle, country of origin: united states,
category: boat parts > trailer parts, sku: 5106397461172722,
Southwest Wheel MHD-122459 Is Similar To:
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1 offer $66.27 USD
  • New. Offer #1 priced at $66.27 + $9.99 shipping estimate = $76.26* total. +$9.99 shipping

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