Choosing the right single axle trailer kit is essential for reliable hauling and easy maintenance. This guide highlights five top options designed for different load capacities and hubface measurements, so you can find a kit that fits your trailer and stabilizes running gear. Each entry includes what’s included, construction quality, and practical use cases to help you compare quickly.
Summary of selected products:
| Product | Capacity | Hubface / Spring Center | Bolt Pattern | Includes |
|---|---|---|---|---|
| 5200 lb TK Single Axle Kit | 5200 lb | 73″ / 58″ | 6×5.5 | Idler Axle, springs, U-bolts, hanger |
| 3.5k Light Duty Single Axle Kit | 3500 lb | 85″ / 70″ | 5×4.5 | Idler axle, springs, U-bolts, hanger |
| 2000 lb Light Duty Single Axle Kit | 2000 lb | 61″ / 46″ | 5×4.5 | Idler axle, springs, U-bolts, hanger |
| 6000 lb TK Light Duty Single Axle Kit | 6000 lb | 73″ / 58″ | 6×5.5 | Idler axle, springs, U-bolt kit, hanger |
| Autoholic 3500 lb Leaf Spring Kit | 3500 lb | — | — | Double eye springs, U-bolt kit, hanger kit |
5200 Lb TK Single Axle Light Duty Trailer Kit with Suspension
Capacity and fitment are built around a 73″ hubface with a 58″ spring center and a 6×5.5 bolt pattern. Included components deliver OEM-grade trailer axles and suspension assembled for straightforward installation. The package combines a 5.2k idler axle, two 2.5k leaf springs, two 5.2k U-bolt kits, and a double eye hanger kit, ensuring proper alignment and robust support for medium-duty trailers.
3.5k Light Duty Single Trailer Axle Kit with Suspension
Designed for quick installations on smaller trailers, this all-in-one bundle includes a 3.5k idler axle, a double eye hanger kit, four-leaf double eye springs, and two 1.75k U-bolt kits. Built with OEM-grade suspension components and high-strength steel axle tubes, it offers durable performance for utility and cargo trailers, ATVs, and related platforms.
2000 Lb Light Duty Single Trailer Axle Kit with Suspension
Utilizing a 61″ hubface and 46″ spring center with a 5×4.5 bolt pattern, this kit includes a 2k idler axle, two 1k leaf springs, two 1k U-bolts, and a double eye hanger kit. The pre-packaged set aims for reliable fitment across light utility and small trailers, delivering steel tube construction for dependable long-term use.
6000 Lb TK Light Duty Single Axle Trailer Kit with Suspension
Engineered for heavier loads, this 6k capacity kit features a 73″ hubface and 58″ spring center with a 6×5.5 bolt pattern. Included are a 6k idler axle, two 3k springs, a 6k U-bolt kit, and a double eye hanger kit. The pre-packaged kit is designed to ensure correct alignment and compatibility with running gear for robust, high-load trailers.
Autoholic Trailer Leaf Spring Kit 3500lb
Designed for standard 3500 lb trailer axles, this leaf spring kit uses manganese steel with a double-eye configuration and four leaves, plus a U-bolt and hanger kit. It provides reliable, repair-friendly suspension for frequent travel and varied terrains, with a focus on durability and flexible compatibility across lightweight trailers.
Buying Guide
- Capacity alignment: Match the trailer’s gross vehicle weight rating (GVWR) with the kit’s axle capacity to avoid under- or over-spec components.
- Hubface and spring center: Confirm hubface (distance between hub centers along the axle) and spring center measurements to ensure proper mounting and suspension geometry.
- Bolt pattern compatibility: Verify wheel bolt pattern (e.g., 5×4.5, 6×5.5) to ensure wheels will fit securely.
- Component quality: Look for OEM-grade axles, high-strength steel tubes, and reliable U-bolts for longevity and safety on the road.
- Included hardware: Pre-packaged kits save time but evaluate whether additional items (grease, brackets, or extra fasteners) are necessary for your setup.
- Trailer type fit: Choose a kit designed for the trailer type (utility, ATV, cargo) to ensure proper support and alignment under typical use.
- Maintenance and replacement: Consider ease of springs and hangers replacement, especially if you plan frequent trips on rough terrain.
- Installation footprint: Check whether the kit requires additional frame modifications or compatible mounting brackets for your trailer model.
- Cost vs. longevity: Higher-capacity kits may offer better durability for heavy-use scenarios; weigh upfront cost against expected service life.