Best Third Arm for Tractor: Top Lift Arms and Attachments
When upgrading or maintaining a tractor’s three-point hitch, a reliable lift arm (the “third arm”) is essential for efficient lifts, precise positioning, and durable operation across seasons. This guide highlights five strong options that fit common tractor models and offer solid warranties and replacement capabilities. Each product is described with its key features, compatibility notes, and practical considerations to help you choose a capable third arm for fieldwork or hobby farming.
Summary of chosen products
| Product | Brand | Key Fit | Notes |
|---|---|---|---|
| Complete Tractor 3013-1639 Leveling Arm | Complete Tractor | Cat I, 16.5″ to 27.5″ | Adjustable leveling arm; 1-year warranty |
| Complete Tractor 3013-1632 Lift Arm | Complete Tractor | Many classic tractors (include John Deere, Massey Ferguson, Ford | 1-year warranty |
| RAParts LA3325 Lift Arm Repair End | Reliable Aftermarket Parts | Category II | Straight, forged; standard pin hole |
| Complete Tractor 3013-1620 Stabilizer Arm | Complete Tractor | 31 9/16″ hole spacing | Stabilizer arm; 1-year warranty |
| Complete Tractor Hydraulic Lift Arm 1113-3002 | Complete Tractor | Ford/New Holland 250C etc. compatible | Cat II compatibility; broad OEM replacements |
Complete Tractor 3013-1639 Leveling Arm
The Complete Tractor 3013-1639 is a leveling arm designed to replace or upgrade a standard CAT I three-point hitch arrangement. It features an adjustable length, with a body length around 11.5 inches and an adjustable range from 16.5 inches to 27.5 inches, offering versatility for different implements and field tasks. The product is noted to be compatible with/Replacement for part number 1590115 and includes a one-year warranty that covers after-purchase performance. Its side-link configuration and delta in length support smoother leveling and more precise lifting during operations such as implement alignment and grading. The included warranty adds confidence in operation after installation, and customer service promises assistance for replacements within a year if needed.
Key considerations: Check your tractor’s CAT I hitch compatibility and ensure the arm’s adjustable range aligns with your implement hookup points. The arm’s design aims to reduce sway and improve control during lifts, especially when matching with levelers or front-mounted attachments. Ensure proper pin and hardware compatibility with your tractor’s mounting pattern before purchasing.
Complete Tractor 3013-1632 Lift Arm
The 3013-1632 Lift Arm from Complete Tractor is designed as a robust replacement option compatible with a broad range of classic tractors, including John Deere, Massey Ferguson, Ford, Oliver, and similar models. It features a red Cat I lower lift arm with a center-to-center length of 32 inches and an inside diameter of 7/8 inch. The product is marketed with a one-year warranty, which provides assurance during planting and harvesting seasons. This lift arm supports efficient implement use, increasing stability and control when lifting heavy attachments or distributing weight across the three-point hitch. For users needing an extended reach or non-standard link geometry, this arm offers a practical balance of length and compatibility.
Practical notes: Verify the lift arm hole spacing on your three-point hitch and confirm compatibility with your PTO-driven implements. The 32″ length suits medium to larger implements, but shorter or longer arms may be required for specialized tasks. Ensure the end pins and securing hardware match your tractor’s mounting hardware to avoid fit issues.
RAParts LA3325 Universal Lift Arm Repair End
The RAParts LA3325 Lift Arm Repair End is a straightforward universal replacement part designed for Category II systems. It features a straight, forged design with a 1-1/8″ pin hole and a width of 2-¾” at the weld end. This end is intended to fit standard lift arms and provide a reliable replacement for worn or damaged ends, contributing to smoother hydraulics and safer lifting. Its forged construction enhances durability for demanding field use and repetitive loads. Users should confirm the exact hole size and end geometry on their existing lift arms to ensure compatibility and proper seating with the tractor’s three-point hitch system.
Key considerations: This part is typically used as a repair end rather than a full lift arm, so evaluate whether you need a complete arm or only the end component. Always inspect wear patterns and ensure secure pin engagement during installation to prevent play or loosening during operation.
Complete Tractor 3013-1620 Stabilizer Arm
The 3013-1620 Stabilizer Arm by Complete Tractor serves as a stabilizing component for 3-point hitch setups, with a length specification of 31 9/16″ and an inside diameter of 7/8″. It is compatible with replacement references 181778M1 and 230042R and is backed by a one-year warranty. This arm is designed to reduce sway and lateral movement, helping to maintain alignments during grading, spreading, or other lift-intensive tasks. It is particularly useful when paired with other hitch stabilizers or levelers to ensure consistent hitch geometry across varying loads. Prospective buyers should consider their implement width and mounting geometry to verify the stabilizer’s effectiveness in their specific tractor configuration.
Important notes: Stable hitch performance depends on proper mounting, secure end pins, and correct spacing in relation to the tractor’s three-point hitch base. If you frequently work with heavy or off-center loads, a stabilizer arm can help maintain consistent lift heights and reduce rocking during operation.
Complete Tractor Hydraulic Lift Arm 1113-3002
The hydraulic lift arm 1113-3002 from Complete Tractor is designed for compatibility with Ford/New Holland 250C, 260C, 2810, 2910, and several 3-cylinder tractor models from 65-74, including 3000, 3055, 3230, 3430, and 345D series. The arm features a C-C length of 34.65 inches, a 3.5 inch width, and a thickness suitable for robust lifting. It’s described as a Cat II compatible arm that replaces OEM numbers such as 81821330, C5NN555AL, and C7NN555S. This ensures wide applicability across multiple brands and generations, making it a versatile choice for tractors that require heavier lifting and more substantial hitch force distribution. The product is presented with a warranty that emphasizes post-purchase support and replacement coverage if needed.
Practical considerations: Confirm your tractor’s specific OEM numbers and measurement tolerances to ensure this lift arm will fit your hitch configuration. The larger C-C length provides more reach, which is beneficial for tall implements but may require more careful alignment with front-mounted attachments and ballast to maintain stability during operation.
Summit Hydraulics Third Function Kit
While focused on hydraulic control rather than a physical lift arm, Summit Hydraulics’ Third Function Kit is a practical upgrade for tractors requiring additional hydraulic circuits to operate rear implements. Compatible with John Deere models such as 1025R, 1023E, and 1026R, this kit provides 1/4″ body ISO 5675 quick-disconnect couplers and a weatherproof joystick with two integrated momentary push-button switches. It complements third-arm setups by enabling independent control of hydraulic implements, improving overall efficiency when using compatible attachments. Consider this kit if you plan to add hydraulic-powered tools or plows that require separate valve control integrated with your three-point hitch system.
Guidance: Ensure your tractor’s hydraulic system can accommodate an extra function circuit and that the tractor’s existing hydraulic ports and relief settings align with the kit’s requirements. Correct installation is essential to prevent hydraulic leaks or control issues during operation.
Buying Guide: Key Purchase Considerations And Comparisons
- Compatibility: Verify hitch type (Cat I vs. Cat II vs. III), hole spacing, and pin hole sizes. Confirm the arm’s length range and whether it supports your implement’s height and reach requirements.
- Load capacity and balance: Longer arms may increase reach but can also affect load distribution. Look for arms with sturdy construction (forged steel) and reliable end fittings to handle heavy attachments safely.
- Adjustability: Adjustable arms offer flexibility across different implements and field tasks. Consider whether you need adjustable leveling arms, stabilizers, or fixed-length arms based on your typical workload.
- Warranty and support: A one-year warranty or longer provides assurance for replacement if the arm shows early failure under normal use. Check the vendor’s after-sales support policies and return windows.
- Replacement parts availability: Being able to source compatible replacement ends, pins, or hardware can extend the life of the system and reduce downtime during field use.
- Hydraulic integration: If you plan to extend into hydraulics with a third function kit, consider compatibility with existing hydraulic ports, couplers, and sub-frames. A third function kit can complement a third-arm upgrade by adding control for additional implements.
- Installation requirements: Some arms require specific mounting hardware or alignment with stabilizers. Ensure you have the proper tools and mounting hardware or be prepared to source compatible pins and fasteners.
- Maintenance considerations: Inspect wear areas, pins, and bushings regularly. Replace worn ends or worn links promptly to maintain hitch stability and implement control.
Choosing the best third arm for a tractor depends on your specific model, the range of implements you use, and how often you perform heavy lifting. The five options above cover a spectrum—from leveling arms and stabilizers to fully compatible hydraulic lift arms—while emphasizing durability, compatibility, and warranty support. For broader functionality, consider pairing lift arms with a third function kit to gain improved control over additional hydraulic tools and attachments. Always verify fit with your tractor’s exact make and model, and consult the manufacturer’s installation guidelines for optimal performance and safety.
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