If you want a direct replacement for Caterpillar 3054 engine telehandlers like the TH62 or TH83, choose VIIKEND Radiator 174-4429; if you need a heavy-duty aluminum solution for CAT D3C-III, D4C-III, or 933C track loaders, choose Leyuncot Radiator 139-6887.
• VIIKEND Radiator 174-4429: Offers a precise, single-unit fit specifically engineered for the Caterpillar 3054 engine family found in telehandlers; it is a straightforward swap with no complex core specifications listed beyond its part number match.
• Leyuncot Radiator 139-6887: Delivers robust thermal performance through a 4-row aluminum core design and detailed dimensional specs, making it ideal for larger crawler tractors and loaders where heat dissipation under load is critical.
• Best For: Choose VIIKEND if your machine is a TH62, TH63, TH82, or TH83 telehandler needing an exact OEM-style replacement.
• Best For: Choose Leyuncot if you operate a D3C-III, D4C-III, D5C-III tractor or a 933C/939C track loader and require high-efficiency cooling in harsh environments.
The VIIKEND Radiator 174-4429 exists to solve a very specific problem: keeping the Caterpillar 3054 engine cool inside compact telehandlers. This unit is designed exclusively for the TH62, TH63, TH82, and TH83 models. When you are working on a job site that involves lifting materials to heights or moving them around tight spaces, your equipment needs to run without interruption. A failure here doesn't just stop the lift; it halts the entire workflow of a parking garage construction project or a logistics center operation.
This radiator is defined by its specificity. There are no mentions of multi-row cores or alternative aluminum constructions because this unit is built to be the exact counterpart to the original equipment. It comes as a single unit count, which suggests a streamlined design meant to slot directly into the existing housing without modification. If you own one of these specific telehandlers, this is the component that restores factory-level thermal management.
You should buy this VIIKEND unit if you have confirmed your machine is a TH series telehandler running the 3054 engine. It is the right choice when you need a guaranteed fitment match without worrying about core dimensions or inlet/outlet variances. However, skip this product entirely if you operate a crawler tractor or a different loader model. The engineering is too narrow; it will not work for the D-series or C-series machines mentioned in other catalogs. It is a specialized tool for a specialized vehicle, not a universal cooler.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-11-07 · 6 min read · Independent comparison
The Leyuncot Radiator 139-6887 is built for heavier duty cycles and larger machinery. Its primary audience includes operators of Caterpillar D3C-III, D4C-III, and D5C-III tractors, as well as those running 933C and 939C track loaders. These machines demand more from their cooling systems than smaller telehandlers do. They push harder against resistance, often operating in dusty, muddy, or extremely hot conditions typical of earthmoving sites or large-scale parking structure foundations.
What sets this unit apart is its construction details. Unlike the simpler description of the VIIKEND unit, the Leyuncot specification explicitly calls out a "Premium Aluminum Construction" with a 4-row core design. This isn't just marketing fluff; a 4-row core provides a significantly larger surface area compared to standard 2 or 3-row units. This design facilitates rapid, continuous heat dissipation, which is vital when a track loader is digging or pushing heavy loads for extended periods. The use of all-aluminum material also means it is lighter than traditional copper-soldered units, reducing strain on mounting points while offering superior corrosion resistance.
Buy the Leyuncot 139-6887 if your machine is a D-series tractor or a C-series track loader. It is the smarter investment for anyone who values long-term durability in abrasive environments. The inclusion of detailed specifications—such as a 27.17-inch by 21.65-inch core size and specific inlet/outlet diameters of 1.77 inches and 1.97 inches respectively—gives buyers confidence that they can verify physical fitment before installation. You should avoid this unit only if you are looking for a part for a TH-series telehandler, as the mounting points and flow rates are likely incompatible with that smaller platform.
• Best for Telehandler Compatibility → VIIKEND Radiator 174-4429: If your vehicle is a TH62, TH63, TH82, or TH83, this is the only logical choice based on the engine model match.
• Best for Heavy-Duty Heat Dissipation → Leyuncot Radiator 139-6887: The 4-row aluminum core makes this the clear winner for machines that generate significant heat under heavy load.
• Best for Corrosion Resistance → Leyuncot Radiator 139-6887: Explicitly designed with premium aluminum to withstand harsh job-site environments better than standard units.
• Best for Precision Fitment Verification → Leyuncot Radiator 139-6887: Provides concrete core dimensions (27.17" x 21.65") and port sizes for users who need to double-check physical clearance.
• Best for Simple Replacement → VIIKEND Radiator 174-4429: A straightforward, single-unit solution for the 3054 engine without the complexity of multiple row configurations.
• Best for Track Loaders → Leyuncot Radiator 139-6887: Specifically compatible with the 933C and 939C models, which require higher thermal output than standard loaders.
• Best for Tractor Applications → Leyuncot Radiator 139-6887: Covers the D3C-III through D5C-III range, ensuring stability for larger agricultural or construction tractors.
• Best for Weight Reduction → Leyuncot Radiator 139-6887: The aluminum construction offers a weight advantage over copper alternatives, beneficial for older chassis designs.
For a buyer standing at the crossroads of these two options, the decision rests entirely on the machine sitting in front of them. I would choose the Leyuncot Radiator 139-6887 for most general construction scenarios because the 4-row aluminum core offers tangible benefits in heat management and longevity that matter when equipment runs hard in parking garages or excavation sites. The detailed specifications give me peace of mind regarding fitment, and the corrosion-resistant build ensures the part lasts longer in dirty conditions. However, if your inventory consists of TH-series telehandlers, my recommendation shifts immediately to the VIIKEND Radiator 174-4429, as its targeted engineering for the 3054 engine makes it the only viable option for those specific vehicles.
No, both products are strictly designed for specific Caterpillar engine families; the VIIKEND is for the 3054 engine, and the Leyuncot is for the 3046 engine used in D-series and C-series loaders.
The 4-row design increases the surface area for cooling, allowing for faster heat dissipation compared to standard cores, which is crucial for preventing overheating during heavy-duty operations.
Yes, professional installation is recommended for both units to ensure proper sealing and alignment, especially given the specific inlet and outlet diameter requirements of the Leyuncot model.
The Leyuncot brand explicitly mentions a hassle-free return/exchange policy and expert support for verification, whereas the VIIKEND listing focuses on confirming the part number fitment before purchase.
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