The following selection highlights top tarp arm kits designed to fit dump trucks of various bed lengths and widths. Each option emphasizes durability, corrosion resistance, and ease of installation, helping fleet operators, contractors, and truck owners keep loads secure. Below you’ll find five well-rounded choices, followed by a practical buying guide to assist in comparing features such as arm count, material quality, adjustability, and hardware compatibility.
| Product | Brand | Key Benefit |
|---|---|---|
| Electric Aluminum Arm 4 Spring Dump Truck Flip Tarp System Kit (Arms Only) | ALL TRUCK PRODUCTS | Heavy-duty aluminum with wide bed compatibility |
| 4-Spring Aluminum Dump Truck Complete Tarp Arm Kit (93″ Lower Arms) | Kym Industries Inc. | No-cut, no-drill adjustable cross tube |
| Carolina Tarps Aluminum Cross Tube & Side Arm (Up To 95″ Wide) | Carolina Tarps | Lightweight aluminum cross tube with simple attachment |
| Electric Aluminum Arm 3 Spring Dump Truck Flip Tarp System Kit (Up To 20′ Bed) | ALL TRUCK PRODUCTS | Compact, three-spring design for smaller beds |
| Carolina Tarps 4-Spring Aluminum Lower Arm (78″ Long) | Carolina Tarps | Longer lower arm for added reach |
Electric Aluminum Arm 4 Spring Dump Truck Kit

This 4-spring aluminum arm system is designed for durability and rust resistance, using precision robotic welds for a robust construction. Its universality is highlighted by telescoping arms that fit dump beds up to 23 feet long and a cross tube compatible with widths up to 110 inches. The adjustable cross tube spans from 93 to 110 inches right out of the box, with the option to cut down to 24 inches for narrower beds. The kit focuses on a balance of strength, adjustability, and wide compatibility, suited for fleets needing reliable, long-reach tarp control.
4-Spring Aluminum Dump Truck Complete Tarp Arm Kit (93″ Lower Arms)

The kit includes 93″ polished aluminum upper and lower arms, a no-cut necessary adjustable aluminum cross tube, and corrosion-treated steel pivot pins with all hardware. The complete kit from pin to pin emphasizes a straightforward installation and durable, corrosion-resistant components. This option is well-suited for operators seeking a robust, ready-to-install tarp arm system with reliable hardware and clear fit within standard 93″ arm dimensions.
Carolina Tarps Aluminum Cross Tube & Side Arm (Up To 95 Inches Wide)

This cross tube kit is designed to fit through the tarp pocket and connect to 90-degree elbows that either fit in or weld to the system’s upper arms. It helps pull the tarp toward the back of the truck or trailer, enabling a smooth closing action. The aluminum construction keeps weight manageable while resisting corrosion, making it a practical add-on for existing tarp systems looking to extend reach or replace worn components.
Electric Aluminum Arm 3 Spring Dump Truck Kit (Up To 20′ Bed)

This 3-spring arm kit provides a more compact alternative for smaller beds, including two lower arms, two upper arms, a cross tube, corner arm connectors, pivot pins, torsion springs, centering flanges, and hardware. Designed to be a complete, ready-to-assemble package, it emphasizes a balanced mix of strength, adjustability, and ease of installation for shorter dump bed configurations.
Kym Industries Aluminum Tarp Bow Set

The tarp bow set from Kym Industries focuses on high-polish, aircraft-grade aluminum with included hardware and two upper side arms. The set provides a lightweight, corrosion-resistant option that can complement a 4-spring system or act as a supportive upgrade for existing tarp arms. It emphasizes durable construction while keeping overall weight low to ease handling and installation.
Carolina Tarps Aluminum Cross Tube & Side Arm (103″)

This cross-tube and side-arm combination offers versatility for larger tarp systems, featuring aluminum construction with easy attachment to end pockets and elbows. It provides straightforward towing and tarp repositioning, expanding compatibility with wider or longer bed configurations. As with other Carolina Tarps components, the emphasis is on durable materials and practical fastening options for long-term use.
Kym Industries 4 Spring Aluminum Lower Arm Kit (With 45 Degree Bends)

This kit features 93″ upper and lower arms with a no-cut, no-drill adjustable cross tube and corrosion-treated steel pivot pins. The 45-degree arm bends adjust arm geometry for better tarp alignment around corners and payloads. It’s designed for robust use across a range of dump truck applications, providing a reliable upgrade path for four-spring systems.
Carolina Tarps Aluminum Lower Arm Kit (78″ Long)

This 78-inch lower arm is tailored for four-spring tarp systems, offering a longer reach that helps secure tarps over higher loads. Constructed from lightweight yet strong aluminum, the kit includes all necessary hardware for straightforward installation. It balances reach and manageability for daily dump-bed operations.
Buying Guide: Key Purchase Considerations
- Bed length and width compatibility: Ensure arms and cross tubes cover your maximum bed length (e.g., up to 23′ or 20′) and width (up to 95″–110″).
- Material and corrosion resistance: Aluminum components reduce weight while resisting rust in harsh environments.
- Arm configuration: Compare 3-spring vs 4-spring systems for the desired closing force and tarp tension.
- Adjustability: Look for cross tubes that can be trimmed or extended to fit non-standard beds.
- Hardware quality: Corrosion-treated pins and included hardware shorten installation time and increase long-term durability.
- Ease of installation: No-cut, no-drill options save time and reduce modification risks.
- System compatibility: If upgrading, verify compatibility with existing elbows, pivots, and end pockets.
When selecting tarp arms for a dump truck, prioritize durable aluminum construction, reliable hardware, and flexible fitment to minimize downtime and maintenance. The options above cover a range of bed sizes and configurations, providing robust solutions for securing loads and ensuring safe, compliant operations.