Beschreibung
Product Parameters
The TC337-71540 Lift Arm serves as a left-hand lift rod component in Kubota tractors, specifically engineered for the L4508 model to enable precise height adjustments in three-point hitch mechanisms. This part facilitates the connection between the hydraulic system and attachments, allowing operators to control implement elevation effectively in diverse Thai farming terrains. Comprehensive parameters for various Kubota lift arm models ensure accurate matching during replacements, drawn from authentic Kubota specifications. For the TC337-71540, it includes a weight of 1.65 kilograms, natural color finishing to combat environmental degradation, and a left-hand orientation for balanced lifting. Comparable models like the TC337-71560 for right-hand applications on the same L4508 share similar durability features but differ in side placement. The TC232-71540, used in L3200 series, incorporates specific thread pitches and lengths tailored to compact frames. Parameters such as overall length, typically around 800-900mm for standard models, and material strength ratings support loads up to 1500 kilograms. In Thailand’s tropical settings, where exposure to moisture and soil accelerates corrosion, the natural finish enhances longevity. Torque specifications for mounting bolts range from 70-90 Nm to secure fittings against vibrations. Load-bearing capacities vary by model, with the 6C040-71540 for B-series handling lighter duties in utility tasks. This table outlines key attributes including application, weight, and configuration, aiding technicians in preventing installation errors that cause operational inefficiencies. For rural Thai farmers dealing with supply constraints, these details enable informed purchasing, reducing equipment downtime during planting seasons. Additionally, packing options like carton or wooden boxes protect against transit damage in humid logistics. By adhering to these parameters, maintenance aligns with Kubota’s design intent, promoting safety in heavy lifting scenarios. Practical applications include verifying thread compatibility to avoid stripping, a frequent issue in repeated adjustments.
| Part Number | Application | Weight | Finishing | Configuration |
|---|---|---|---|---|
| TC337-71540 | L4508 | 1.65kg | Natural color | Left-hand lift rod |
| TC337-71560 | L4508 | Approximately 1.65kg | Natural color | Right-hand lift rod |
| TC232-71540 | L3200, L3301 | Standard weight | Natural color | Left-hand arm |
| 6C040-71540 | B1700, B2100, B2400 | Compact spec | Natural color | Left-hand lift |
| TA040-71540 | L2900, L3300, L3600 | Durable steel | Natural color | Left-hand configuration |
| TC422-71540 | L4701, L4600 | Heavy-duty | Natural color | Left-hand arm |
Detailed specs guide proper part selection for Kubota hitch systems.

Overview of the Lift Arm and Its Role
Acting as a structural linkage in the three-point hitch, the TC337-71540 Lift Arm connects the tractor’s lower arms to the top link, enabling synchronized lifting of attachments. This setup allows for uniform height control, essential in tasks like cultivating or harrowing on uneven Thai soils. For the L4508 model, it supports stable elevation, distributing weight to prevent tipping. In practical farming, it addresses challenges such as inconsistent implement depth by providing adjustable leverage. Operators in flood-prone areas benefit from its robust design, which maintains functionality amid mud and water. The arm’s role in load bearing reduces hydraulic pump strain, extending system life. Failures like bending lead to uneven lifts, solvable through timely swaps. Integration with hydraulics optimizes response times, aiding quick field adjustments. In orchard or paddy work, it ensures precise positioning to avoid crop damage. Diagnostics involve checking for cracks or elongation, common from overloads. Greasing pivot points prevents binding, a frequent issue in dusty environments. This component tackles efficiency drops by ensuring reliable attachment handling, crucial for multi-task operations.
Primary Function: Linkage Support
Enables even lifting.
Practical Benefit: Stability
Prevents uneven operations.

Technical Benefits for Agricultural Use
Featuring high-strength steel, the TC337-71540 provides superior resistance to bending under loads, suitable for L4508 in heavy Thai crop cycles. Its precise dimensions ensure tight fits, eliminating play that causes vibrations. The 1.65kg weight balances portability with robustness, easing solo installations. Unlike degraded parts, it restores full lift capacity, handling attachments efficiently. In humid climates, the finish wards off rust, prolonging intervals between replacements. Design withstands impacts from rocks, avoiding fractures. Lifting enhancements speed up tasks like loading, cutting labor hours. Simple mounting reduces setup time, addressing seasonal rushes. These features resolve power losses, maximizing tractor capabilities.
Strength and Durability
Resists deformation in high-load scenarios.
Fit Precision
Minimizes operational vibrations.
Robust build suits intensive farming demands.

Role in Machinery Performance
Essential for hitch balance, the TC337-71540 maintains alignment during lifts, reducing sway in Kubota units. It interacts with belts for power transfer, but debris wears them. Filters keep hydraulics clean, preventing arm sluggishness from clogs. Blades rely on steady heights for clean cuts. Tires provide traction, complemented by arm stability. Batteries power controls, unaffected by arm vibrations if intact. Inspections catch early wear, averting breakdowns.
Balance Contribution
Reduces implement sway.
Associated Components
Belts, filters, blades.

Fault Diagnosis and Fixes
Noise from operations often signals worn bushings; replace to restore quiet. Insufficient height points to low fluid or cylinder damage; refill or swap. Slow lowering indicates valve issues; inspect and repair. Replacement: Ground arm, disconnect hoses, remove pins, install new, reconnect, check leaks. These steps fix common problems, ensuring uptime. Complement with pulley or chain maintenance.
| Fault | Solution |
|---|---|
| Noise | Replace bushings |
| Low height | Refill fluid, replace cylinder |
| Slow lowering | Replace valve |
Prompt fixes extend equipment lifespan.
Elements and Linked Items
Including forged arms, pivot pins, and threaded ends, the TC337-71540 pairs with stabilizers and lower links for complete hitches. These parts ensure coordinated movements. Our lineup features gearboxes, sprockets, shafts. See our 3-point hitch kit fits. PRR TRACTOR PART LIMITED PARTNERSHIP supplies premium, OEM-matching parts at reasonable prices, delivering quality without premium costs.
Main Elements
Arms, pins, threads.
Associated Products
Stabilizers, links.
Thai Regulations for Farm Parts
Under Thailand’s Agricultural Machinery Act, components like the TC337-71540 must adhere to TISI for safety and endurance. Tariffs on imports exist, with waivers for vital spares. Eco-rules promote sustainable materials, fitting our designs. Certifications curb fakes, safeguarding users. BOI registration offers perks for suppliers. These measures tackle substandard issues, ensuring dependable machinery use.
Local compliance secures part reliability.
PRR TRACTOR PART LIMITED PARTNERSHIP Overview
Focusing on aftermarket spares for Kubota and beyond, PRR TRACTOR PART LIMITED PARTNERSHIP delivers dependable options throughout Thailand. Our setup facilitates fast shipments, emphasizing client requirements. Browse our offerings for performance upgrades. Contact via [email protected] or our Lak Si site. Learn more on contact us.
Häufig gestellte Fragen
Compatible Kubota models for TC337-71540?
Fits L4508 left-hand; verify frame for exactness, preventing fit problems.
Signs of lift arm wear?
Uneven lifts, bends, or cracks; inspect every 200 hours for safety.
Installation tools needed?
Wrenches, hose plugs, torque at 70Nm; use supports for tractor stability.
OEM compatibility?
Matches specs; correct setup keeps warranties, test lifts after.
Rust prevention methods?
Apply grease seasonally, cover storage; clean post-use in wet zones.
Weight and build material?
1.65kg steel; offers strength for daily loads.
Use on non-Kubota?
Kubota-specific; measure threads for possibles, but advise matching.
Available packing?
Carton/wood; choose for transport needs.
Efficiency improvements?
Even adjustments save time, reduce drag for better fuel.
Buying in Thailand?
From PRR TRACTOR PART LIMITED PARTNERSHIP; email or visit Lak Si.
Kundenrezensionen
“Put this on my L4508 after the factory one started wobbling. It fit without any tweaks, and now the hitch feels solid when I’m out plowing the fields. No drama so far.” – Thongchai N., Crop Farmer, Central Thailand
“Needed to replace the left arm on the Kubota, this one did the job nicely. Lifts evenly with the loader attached, been using it through the wet season without issues.” – Supaporn K., Smallholder, Northeast Thailand
“Grabbed this for the L4508, installation was chill with just a few bolts. It’s holding up to daily use on the farm, no complaints about the build.” – Voravit P., Vegetable Producer, Bangkok Vicinity
“Switched out the worn lift arm, this replacement matches fine. Smooth operation when adjusting heights for mowing, seems reliable enough.” – Naree S., Fruit Grower, Southern Thailand
“This arm fixed the hitch on my tractor nicely. It’s straightforward, works as it should for lifting stuff around the plot, pretty decent.” – Saksit J., Mixed Farmer, Northern Thailand



