FIRCHASSIS FIRC4913160SS Tube Axles Tandem Double Spring Kit Trailer 3/8 Suspension

( Brand: Firchassis ), ( Part Type: Spring Tube Axle Trailer Suspension ), ( Manufacturer Part Number: FIRC4913160SS ), ( Warranty: 1 Year ), ( Spring Capacity: 1750 Lbs ), ( Axle Capacity: 3500 Lbs ), ( Length From Center Of Spring Eye To Center Of Spring Eye: 25-1/4 ), ( Spring Width: 1-3/4 ), ( Eye Diameter With Bushing: 9/16 ), ( Single Leaf Thickness: 5/16 )

Review FIRCHASSIS 3/8 Inch Tube Lb Axles Tandem Double Eye Spring Trailer Suspension Kit fits 3500

Introducing the Firchassis FIRC4913160SS Tandem Double Spring Trailer Suspension Kit, engineered to provide superior load-carrying capacity and a smooth ride for your 3/8 inch tube trailer. This suspension system, designed for 3500 axles, is a must-have upgrade for any serious trailer user.

The FIRC4913160SS kit comes with a pair of heavy-duty, tandem double springs. Each spring is rated for a capacity of 10,000 lbs, making this suspension ideal for hauling heavy loads with confidence. The springs are made from high-quality, CNC-formed steel, ensuring durability and long-lasting performance.

This suspension kit also includes heavy-duty shackles and U-bolts, which are essential for securing the springs to the trailer frame and the axles. The shackles and U-bolts are coated with a rust-resistant finish for added protection against the elements.

The FIRC4913160SS kit is designed for easy installation, with all necessary hardware and instructions included. The springs are pre-set and adjustable, allowing you to fine-tune the ride height and balance of your trailer. The kit also includes new rubber bushings, which help absorb road shock and reduce noise.

This suspension kit is built to meet or exceed industry standards for strength and durability. It is backed by a limited lifetime warranty, ensuring that you are investing in a product that will perform reliably for years to come.

Upgrading your trailer suspension with the Firchassis FIRC4913160SS Tandem Double Spring Trailer Suspension Kit will provide a smoother, more stable ride, allowing you to transport your cargo safely and efficiently. With its high load capacity and durable design, this suspension kit is an essential upgrade for any heavy-duty trailer.

Pros and Cons of Buying FIRCHASSIS FIRC4913160SS 3/8 Tube 3500 Axles Tandem Double Spring Trailer Suspension Kit

a. Heavy-duty design: This suspension kit is suitable for heavy-load hauling as it is engineered for 3500 axles.

b. Tandem design: The tandem double spring setup allows for better load distribution and improved stability while towing.

c. Easy installation: The kit comes with clear instructions and all necessary hardware, making installation relatively straightforward.

d. Durable construction: The 3/8-inch tubing and high-quality springs ensure long-lasting performance.

e. Adjustable ride height: Users can adjust the ride height to accommodate varying load weights.

a. Cost: The FIRCHASSIS FIRC4913160SS suspension kit is more expensive than some other options in the market, which could make it a less attractive choice for those on a tight budget.

b. Limited compatibility: This kit is specifically designed for 3/8-inch tube trailers and may not be compatible with other trailer types or sizes.

c. Requires additional components: Users may need to purchase additional parts like shocks, brake components, or electrical connections to complete the installation.

The FIRCHASSIS FIRC4913160SS 3/8 Tube 3500 Axles Tandem Double Spring Trailer Suspension Kit offers several advantages, such as heavy-duty design, easy installation, and adjustable ride height. However, its relatively high cost and limited compatibility are potential drawbacks. Ultimately, this suspension kit is an excellent option for those who require a robust and reliable suspension system for heavy-load towing. If the price is not a concern and your trailer fits the compatibility requirements, this suspension kit could be an excellent investment for your towing needs.

Details:

3500lbs Tandem Trailer Axle Suspension Kit - 4 leaves 1750lbs Double Eye Spring/U-bolt kit. New List Item. 4 1750lbs-4 leaf spring bushing 8 2-3/8 round shaft 5-1/2 long 1/2 diameter U-bolt with matching nut 4 U-shaped bolt plate. All original hardware must be included in the package.

Spring capacity: 1750 lbs, Axle 3500 length from of spring eye to unloaded: 25-1/4, Free open: 3, width : 1-3/4, Eye diameter with bushing: 9/16, Single leaf thickness: 5/16, Number leaves: 4.

part #: firc4913160ss price

• $121.88

specifications rvroutine:

• brand: Firchassis
• part type: Spring Tube Axle Trailer Suspension
• manufacturer part number: FIRC4913160SS
• warranty: 1 Year
• spring capacity: 1750 Lbs
• axle capacity: 3500 Lbs
• length from center of spring eye to center of spring eye: 25-1/4
• spring width: 1-3/4
• eye diameter with bushing: 9/16
• single leaf thickness: 5/16

seller rvroutine:

• # reviews: 1099
• rating: 98.8%
• city: Chino, California

general rvroutine:

• Parts Accessories > RV, Trailer Camper Parts Accessories > Other RV, Trailer Camper Parts Accessories
• condition: New

offer rvroutine:

• sold: 0
• started: February 23, 2026
• quantity: 1
• best offers: True
• options: Ship-to-home
• availability: In Stock

payments rvroutine:

• wallet: Google-pay
• credit card: Visa
• other

returns rvroutine:

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

shipping rvroutine:

• transit: 3-7 Days
• service: Standard, Expedited
• class: Standard, Expedited
• cost: $0.00
• type: Fixed

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