---
product_id: 16348026
title: "Timbren TORTUN4 Suspension Enhancement System"
brand: "timbren"
price: "€ 488.84"
currency: EUR
in_stock: true
reviews_count: 10
category: "Timbren"
url: https://www.desertcart.de/products/16348026-timbren-tortun4-suspension-enhancement-system
store_origin: DE
region: Germany
---

# 6000 lbs weight capacity Rear axle fitment Easy DIY install Timbren TORTUN4 Suspension Enhancement System

**Brand:** timbren
**Price:** € 488.84
**Availability:** ✅ In Stock

## Summary

> 🚛 Elevate your towing game with Timbren’s no-sag suspension boost!

## Quick Answers

- **What is this?** Timbren TORTUN4 Suspension Enhancement System by timbren
- **How much does it cost?** € 488.84 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/16348026-timbren-tortun4-suspension-enhancement-system)

## Best For

- timbren enthusiasts

## Why This Product

- Trusted timbren brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **No More Rear Sag:** Eliminates rear-end sag even under heavy trailer loads
- • **Heavy-Duty Load Support:** Handles up to 6000 lbs for serious towing power
- • **Smooth Ride, No Compromise:** Maintains factory ride quality when unloaded
- • **Enhanced Stability & Control:** Improves towing stability and reduces jarring over bumps
- • **Simple, Tool-Friendly Installation:** Install in under an hour without removing wheels or jacks

## Overview

The Timbren TORTUN4 Suspension Enhancement System is a rear-axle rubber suspension kit designed to support up to 6000 lbs, eliminating rear sag and improving towing stability. It installs easily without wheel removal or jacking, maintaining a smooth ride when unloaded and providing enhanced control under heavy loads. Ideal for Toyota Tundra owners and serious haulers seeking a cost-effective upgrade.

## Description

Buy Timbren TORTUN4 Suspension Enhancement System: Body & Suspension Lift Kits - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Best purchase for towing - These made all the difference pulling a heavy load the stock 2010 Toyota tundra stops are metal and this gave a great tow without all the jarring every time You go Over a bump in the road. Added stability and easy to install.
Review: Actually an easy install for a 57 yo LOL - I own a 2012 Toyota Tundra 4x4 with stock suspension and have been pulling my boat, a Chaparral Signature 240 cruiser. Total wt. approx. 6500lbs with trailer included. I was experiencing considerable sag on the rear end of my tundra. So I decided to purchase the Timbren suspension kit and I installed it myself. Was not difficult at all. Actually an easy install for a 57 yo LOL! I did not remove the rear wheels or have to jack up vehicle. I sprayed WD-40 on the U-Bolts nuts to facilitate easy removal of the U-Bolt nuts. I then removed the nuts with a 1/2 inch drive breaker bar fairly easy. I then removed the U-Bolts and the old stock leaf spring bump stop from inside the wheel well looking over the tire. I then took the U-Bolts and used a wire brush and cleaned off dirt that had built up on the threads of the U-bolts and sprayed them with WD-40 to make the nut install easier. From the wheel well over looking the top of the rear tire (Just squeeze your head and arms in over the tire) I took the assembled Timbren bump stop and lined it up in position on the axel and positioned the U-bolts in correct spot. Then just crawled underneath the truck and tightened down the U-Bolt nuts to 70-75 foot pounds of torque. Then repeat the other side. So after the install I drove my Tundra around town , and there was no difference in ride with no load. So I connected my boat to the Tundra and there was absolutely no sag. I pulled my boat to have new tires put on the trailer and the ride was actually different.The pull felt more stable and more of a under control feeling. Over bumps I did not experience that bottoming out feel. A Far better ride than stock suspension. I'm really impressed with the TORTUNA4 Suspension System so far. Was an easy install and not as expensive as a fix as I thought it would be.Well worth time and money at this point.

## Features

- Suspension Enhancement System
- Weight Capacity 6000 lbs.
- Rear

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001TNBTJI |
| Auto Part Position | Front Lower |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #970,816 in Automotive ( See Top 100 in Automotive ) #19 in Automotive Performance Chassis Body & Performance Lift Kits |
| Brand | Timbren |
| Customer Reviews | 4.6 4.6 out of 5 stars (298) |
| Date First Available | February 21, 2009 |
| Exterior | Smooth |
| Global Trade Identification Number | 00809933003511 |
| Included Components | item |
| Is Discontinued By Manufacturer | No |
| Item Weight | 8.1 ounces |
| Item model number | TORTUN4 |
| Manufacturer | Timbren |
| Manufacturer Part Number | TORTUN4 |
| Material | Rubber |
| Maximum Lifting Height | 6 Inches |
| Model | Timbren |
| OEM Part Number | TORTUN4 |
| Product Dimensions | 7 x 9.5 x 5.5 inches |
| Set Name | Suspension Enhancement System Rear Set |
| Special Features | Capacity: 6,000 lbs., Location: Fits Rear Axle |
| UPC | 809933003511 |

## Product Details

- **Auto Part Position:** Front Lower
- **Brand:** Timbren
- **Included Components:** item
- **Material:** Rubber
- **Maximum Lifting Height:** 6 Inches

## Images

![Timbren TORTUN4 Suspension Enhancement System - Image 1](https://m.media-amazon.com/images/I/51GVgMgyMLL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best purchase for towing
*by L***E on November 26, 2025*

These made all the difference pulling a heavy load the stock 2010 Toyota tundra stops are metal and this gave a great tow without all the jarring every time You go Over a bump in the road. Added stability and easy to install.

### ⭐⭐⭐⭐⭐ Actually an easy install for a 57 yo LOL
*by K***Y on May 19, 2018*

I own a 2012 Toyota Tundra 4x4 with stock suspension and have been pulling my boat, a Chaparral Signature 240 cruiser. Total wt. approx. 6500lbs with trailer included. I was experiencing considerable sag on the rear end of my tundra. So I decided to purchase the Timbren suspension kit and I installed it myself. Was not difficult at all. Actually an easy install for a 57 yo LOL! I did not remove the rear wheels or have to jack up vehicle. I sprayed WD-40 on the U-Bolts nuts to facilitate easy removal of the U-Bolt nuts. I then removed the nuts with a 1/2 inch drive breaker bar fairly easy. I then removed the U-Bolts and the old stock leaf spring bump stop from inside the wheel well looking over the tire. I then took the U-Bolts and used a wire brush and cleaned off dirt that had built up on the threads of the U-bolts and sprayed them with WD-40 to make the nut install easier. From the wheel well over looking the top of the rear tire (Just squeeze your head and arms in over the tire) I took the assembled Timbren bump stop and lined it up in position on the axel and positioned the U-bolts in correct spot. Then just crawled underneath the truck and tightened down the U-Bolt nuts to 70-75 foot pounds of torque. Then repeat the other side. So after the install I drove my Tundra around town , and there was no difference in ride with no load. So I connected my boat to the Tundra and there was absolutely no sag. I pulled my boat to have new tires put on the trailer and the ride was actually different.The pull felt more stable and more of a under control feeling. Over bumps I did not experience that bottoming out feel. A Far better ride than stock suspension. I'm really impressed with the TORTUNA4 Suspension System so far. Was an easy install and not as expensive as a fix as I thought it would be.Well worth time and money at this point.

### ⭐⭐⭐⭐⭐ Easy-ish install despite vague instructions
*by R***S on August 26, 2024*

Review based on 2015 Nissan Titan SV. My picture shows the original bump stop next to the installed Timbren spring. I was towing an 8,000 lb RV and the squat, even with a proper weight distribution system, solicited embarrassing comments from other campers (at best) and was probably dangerous for driving. A fellow Titan owner recommended these for being very easy to install and eliminating squat, so I tried them (over inflatable air springs). Installation was not QUITE as quick and easy as the claim, but I was able to do everything on my own in my driveway. The first side was slow because I was scared of what would happen when I loosened the brackets holding the bump stop to the leaf springs (spoiler alert: nothing happens, the springs stay together). The second one was much quicker because of this. I did need to remove the wheels (one at a time) to reach the suspension, and for this I needed two jacks: one to raise the vehicle, and the other to support the axle since there was no wheel holding it up. The instructions are not totally clear about this but I think it's critical that the axle is propped up by something while you work, whether it's the wheel or a jack. I also needed a 19mm deep socket to undo the bolts; a shallow socket would not work. And a long wrench to loosen it as well as to torque the bracket back to manufacturer's spec (mine was around 100lb; look it up for your vehicle; each is different). But aside from needing to have somewhat more than "basic" tools, once I had it all on hand, it was an easy swap and the squat is negligible now! I know it doesn't increase the towing capacity, but it does help to alleviate stress on the rear suspension and increase braking and handling.

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-02-23*