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Yanmar 3TNV74F-SPFN Rebuilt Engine Product Category — Weihuparts
Yanmar 3TNV74F-SPFN Rebuilt Engine — Category Overview
What this category includes
Weihuparts' Yanmar 3TNV74F-SPFN rebuilt engine range delivers professionally remanufactured power units engineered to restore excavator performance. Each unit is rebuilt to strict OEM-equivalent specifications, with replaced wear components, precision machining, and final calibration to ensure reliable start-up, torque, and fuel efficiency across routine and heavy-duty applications.
Key features & benefits
Our rebuilt engines offer proven advantages: cost-effective restoration versus new units, reduced downtime through tested reliability, and improved fuel economy. The Yanmar 3TNV74F-SPFN rebuilt engine is balanced for vibration control, optimized for emissions compliance, and inspected for compression and leakdown to guarantee consistent performance on site.
Technical compatibility
This category is designed to fit machines originally powered by the Yanmar 3TNV74F-SPFN platform. Weihuparts provides detailed fitment guides and part-matching support to ensure correct integration with different excavator frames, mounts, and control systems. Our technicians verify serial and model compatibility before dispatch.
Quality assurance & warranty
Every Yanmar 3TNV74F-SPFN rebuilt engine undergoes multi-point inspection, component traceability, and dynamometer testing. Weihuparts backs rebuilt units with a clear warranty and documented QC records. Our quality-first approach and ongoing R&D reduce return rates and extend service intervals, protecting your investment.
Ordering, delivery & support
Weihuparts offers global shipping, timely lead times, and flexible logistics options to meet project schedules. Our customer service and technical teams provide pre-sale fitment checks, installation guidance, and post-sale troubleshooting. Spare parts and overhaul kits are available to complement the rebuilt engine purchase.
Why choose Weihuparts
As a trusted partner in excavator spare parts, Weihuparts combines engineering-driven R&D with cost-effective manufacturing and dependable delivery. Choosing our Yanmar 3TNV74F-SPFN rebuilt engine means partnering with a supplier focused on uptime, sustainability, and measurable performance gains for your fleet.
Yanmar 3TNV74F-SPFN rebuilt engine Display
How do I know which parts I need for my excavator?
If you are unsure which parts are needed, our knowledgeable customer support team can assist you. You can provide us with your excavator model and any relevant details, and we will help you identify the correct parts.
Do you provide installation services for your parts?
While we do not offer installation services directly, we can recommend qualified professionals or resources to assist you with the installation of our parts. Our customer support team can provide guidance on finding local service providers.
Are your parts compatible with all excavator brands?
Weihuparts strives to offer parts compatible with a wide range of excavator brands and models. However, we recommend checking the product specifications or consulting with our team to ensure compatibility with your specific excavator.
Can I return or exchange parts if I change my mind?
Yes, we accept returns and exchanges within [insert return period, e.g., 30 days] of purchase. The items must be unused and in their original packaging. Please contact our customer service team to initiate a return or exchange.

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