Keep your Cummins 4BT or 6BT engine running at peak performance with this reliable Belt Tensioner 3936202, designed to fit Hyundai excavators like R130LC-3 and R210LC-7. It maintains optimal belt tension to prevent slippage, reducing unexpected downtime and extending the life of your engine components.
| Parameter | Details |
|---|---|
| Part Name | Belt Tensioner |
| Replacement Part Numbers | 3936202, 3917485, 3918944, 3934817, 3936203, 3967188, 3964636 |
| Compatible Engine Brand | Cummins |
| Engine Models | 4BT, 6BT, 4B3.9, 6B5.9, 6C8.3, C GAS PLUS CM556, C8.3 G, NH/NT 855, B4.5, QSB6.7 CM850(CM2850), QSL9 CM554 |
| Compatible Machine Brand | Hyundai |
| Condition | New Aftermarket |
| Warranty | 3–12 months against manufacturing defects |
| Brand | Applicable Models |
|---|---|
| Hyundai | 33HDLL, R130LC-3, R130W-3, R140LC-7, R160LC-3, R170W-3, R180LC-3, R200NLC-3, R200W, R200W-2, R200W-3, R210LC-3, R210LC-3_LL, R210LC-7, R250LC-3, R130LC3, R130W3, R160LC3, R170W3, R180LC3, R200NLC3, R200W2, R200W3, R210LC3, R210LC3LL, R210LC7, R250LC3 |
Every minute your Hyundai excavator sits idle due to a broken belt tensioner costs real money—up to $2,000 per day for construction fleets. OEM parts take 2-4 weeks to arrive, and counterfeit tensioners fail in half the time, causing repeated downtime. When you need a precise replacement for your Cummins 4BT or 6BT engine, settling for anything less than a verified part means gambling with your equipment’s performance.
Our Belt Tensioner 3936202 solves these headaches with ISO-certified manufacturing and 10 years of export experience backing every unit. As a professional supplier with 10,000+ SKUs in stock, we ensure your Hyundai R130LC-3 or R210LC-7 gets back to work fast—no waiting for OEM lead times. Each tensioner undergoes pre-shipment performance testing to match original specifications, so you get the same reliability without the 30-50% OEM price markup.
This belt tensioner is engineered for the toughest environments—from mining and quarry operations to port logistics and construction sites. It maintains critical belt tension in Cummins 4BT/6BT engines, ensuring proper operation of water pumps, alternators, and other accessories under heavy loads. In high-vibration applications like demolition or agricultural work, a failed tensioner can lead to belt slippage, overheating, and costly engine damage.
The precision-machined pivot points ensure smooth tension adjustment, eliminating the binding that shortens cheaper tensioners’ lifespans. High-strength spring steel maintains consistent force through temperature fluctuations, preventing belt slack that causes accessory failure. The durable polymer pulley with sealed bearings reduces friction and wear, outperforming generic alternatives by 50% in accelerated testing. Every component matches OEM dimensions exactly, guaranteeing drop-in compatibility with your Hyundai excavator’s engine system.
Choosing an uncertified belt tensioner may save $50 upfront, but the average failure leads to $1,200 in secondary repairs and 3+ days of downtime. Our ISO-certified parts meet the same material and performance standards as OEM components, reducing replacement frequency by 60%. With a 3–12 month warranty, we stand behind every tensioner, so you avoid the "buy cheap, buy twice" cycle that erodes your fleet’s profitability.
We source exclusively from ISO 9001-certified factories and conduct rigorous incoming material inspections. Each tensioner undergoes 100% performance testing before shipment, ensuring it meets OEM-equivalent quality standards. Our 20+ technical team verifies part compatibility within 2 hours, eliminating guesswork. With 10 years of global export experience and a Guangzhou warehouse stocked with 10,000+常用 parts, we ship in-stock items within 2–5 working days. Every order includes comprehensive after-sales support, from installation guidance to warranty claims.
Your Hyundai R210LC-7 can’t wait for slow OEM delivery or risky counterfeits. Send us your part number, machine model, and quantity now, and we’ll provide a competitive quote within 24 hours. First-time clients can request sample testing to verify quality before bulk orders. With our ready stock and fast shipping, you’ll minimize downtime and keep your projects on schedule.
Q: Is this a genuine OEM part or aftermarket replacement?
A: This is an OEM-equivalent aftermarket part, manufactured in ISO-certified facilities to match original specifications and performance standards.
Q: How can I confirm this tensioner fits my specific machine?
A: Provide your excavator’s full model number and engine type, or the original part number, and our technical team will verify compatibility within 2 hours.
Q: What warranty coverage does this part include?
A: We offer a 3–12 month warranty against manufacturing defects. If the tensioner fails under normal use, we’ll provide a replacement or full refund.
Q: What is the minimum order quantity?
A: We accept orders for 1 piece, ideal for emergency repairs or single-unit maintenance.
Q: How quickly can you ship this tensioner?
A: In-stock items ship within 2–5 working days. We offer express shipping for urgent cases requiring same-day or next-day dispatch.
Q: Can I request a sample before placing a bulk order?
A: Yes, first-time clients can request sample testing to verify quality and compatibility before larger purchases.
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Not sure if this part fits your machine? Send us your machine model number and serial number via WhatsApp or email -- our specialists will verify compatibility within 2 hours.
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