Best Interchangeable Hitch Ball System for Versatile Towing
Interchangeable hitch ball systems simplify towing by letting you switch ball sizes on a single mount. This guide profiles five top options, outlining ball sizes, capacity, and key features so you can compare at a glance. Whether you’re towing different trailers or just need quick size changes, these systems are designed for durability and easy swaps.
| Product | Brand | Ball Sizes Included | Typical Capacity |
|---|---|---|---|
| Convert-A-Ball 900B Nickel-Plated Shank | Convert-A-Ball | 1″ | 10,000 lb GTW |
| REESE Towpower 74309 Interchangeable Kit | Reese | 1-7/8″, 2″, 2-5/16″ | 8,000 lb capacity |
| Trimax TMB335 Interchangeable Multi-Ball | Trimax | 1-7/8″, 2″, 2-5/16″ | Up to 8,000 lb |
| Tow Ready 63803 Interchangeable Ball | Draw-Tite | Multiple standard sizes | Up to 8,000 lb |
| REYSUN Tri-Ball Mount | REYSUN | 1-7/8″, 2″, 2-5/16″ | Up to 10,000 lb (hitch capacity varies) |
Convert-A-Ball 900B Nickel-Plated Shank With 3 Balls

The Convert-A-Ball 900B provides a nickel-plated shank and three ball options. Specs include 1″ diameter, a 2-1/4″ length, and a 10,000 lb GTW rating. This setup focuses on robust chrome-plated durability and quick ball changes, suitable for a range of trailers with a common shank size. The kit’s multi-ball approach reduces the need for separate mounts and simplifies swapping between coupler sizes.
REESE Towpower Interchangeable Trailer Hitch Ball Kit

REESE Towpower 74309 offers three interchangeable sizes: 1-7/8″, 2″, and 2-5/16″ with an 8,000 lb capacity. The kit allows quick ball size changes, making it versatile for different trailers. The 1″ shank variant accommodates lighter tongues, while the chrome finish adds corrosion resistance for longer service life. This system is designed for convenient swapping on the go, with included hardware for ease of installation.
Reese Towpower Interchangeable 1-7/8″ and 2″ Hitch Ball Kit

This Reese kit includes 1-7/8″ and 2″ hitch balls with a 1″ shank, plus nut and washer. Capacity is listed as 1,000/8,000 TW/GTW and the shank is heat-treated for strength and a durable chrome finish. The set focuses on reliable interchangeability for daily towing tasks and multiple trailer types, with emphasis on sturdy construction and corrosion protection.
Trimax TMB335 Interchangeable Multi-Ball System

Trimax TMB335 introduces a revolutionary all-in-one ball system offering three ball sizes on a single mount. Compatible with 1-7/8″, 2″, and 2-5/16″ couplers, it provides load ratings of 3,500 lb, 6,000 lb, and 8,000 lb respectively. This design emphasizes seamless ball changes and a compact mounting footprint, ideal for users who tow different trailers frequently and want a single, durable solution.
Convert-A-Ball 902B Stainless Shank With 3 Balls

The 902B variant offers a stainless steel shank with three ball sizes, maintaining a 1″ diameter and 2-1/4″ length, rated for 10,000 lb GTW. Stainless construction provides enhanced corrosion resistance, making it a favorable choice for challenging environments or long-term outdoor towing. The included three balls support a versatile range of coupler sizes for frequent swaps.
Convert-A-Ball 400B Replacement Ball Kit

The 400B kit provides a 2″ ball compatible with 3/4″ and 1″ diameter Convert-A-Ball shanks, with a nickel-plated steel finish. This option is useful for maintaining a ready-to-use spare ball for users with multiple shanks or to refresh worn balls on an interchangeable system.
Tow Ready 63803 Interchangeable Ball

Tow Ready 63803 emphasizes quick-release changes for rapid ball swaps. It’s rated up to 8,000 lbs and is designed for vehicle-specific fit. The system focuses on speed and reliability, providing an efficient solution for towing multiple trailers with different coupler sizes.
REYSUN Tri-Ball Mount

REYSUN offers a Tri-Ball Mount with included swivel shackle and tow hook. It supports 1-7/8″, 2″, and 2-5/16″ balls, with a construction that also accommodates a 5/8″ hitch lock pin. Rated capacities vary by ball size, up to 10,000 lbs on some configurations, and it’s designed for use with a standard 2-inch receiver, covering Class III to V setups.
Buying Guide: Key Purchase Considerations
When selecting an interchangeable hitch ball system, consider these factors to ensure you choose the best fit for your towing needs:
- Ball size range: Confirm the diameters you will regularly tow and whether the kit covers 1-7/8″, 2″, and 2-5/16″ as needed.
- Tongue weight and trailer weight ratings: Compare GTW and tongue weight ratings to match trailers with your hitch class. Higher capacity offers more versatility but may add weight.
- Shank compatibility: Check shank diameter and length to ensure it fits your hitch insert and mounting plate. Some systems use 1″ shanks, others 1-1/4″ or different specs.
- Materials and finish: Chrome plated, nickel-plated, or stainless steel finishes affect corrosion resistance and longevity in varying climates.
- Ease of ball changes: Quick-release or tool-free designs reduce downtime. Consider the number of hardware pieces included (nut, washer, etc.).
- Durability and torque: Heat-treated components and robust ball retainers increase reliability under load and vibration.
- Fit and compatibility: Ensure the system fits your vehicle’s bumper height, receiver class, and tongue configuration. Some models say “vehicle specific” for certain installations.
- Maintenance: Look for corrosion protection and simple cleaning procedures to extend life between uses.
- Warranty and support: Check manufacturer warranties and replacement parts availability for long-term value.
Cross-check product specs with your towing setup to minimize the need for extra adapters. For frequent changes between trailers, prioritize systems with multiple balls included or easily swappable components. Consider stainless or nickel finishes if exposure to salt or moisture is a concern.