Belt Tensioner Assembly 3936213 5259022 3976831 for Cummins Engine 6C ISB QSB 4B3.9 B4.5 6B5.9 B6.7
Keep your Cummins engine running smoothly with consistent belt tension using our...
Keep your John Deere tractor running at peak performance with the reliable Belt Tensioner RE548027, engineered to maintain optimal belt tension for 4045 and 6068 engines in models like the 6403 and 5085E. This precision replacement part ensures consistent power transfer, reducing unexpected downtime and extending the life of your engine’s accessory belts.
| Parameter | Details |
|---|---|
| Part Name | Belt Tensioner |
| Replacement Part Number | RE548027 |
| Brand Compatibility | John Deere |
| Compatible Engines | 4045, 3029, 6068, 6090, 6125, 6135 |
| Condition | New Aftermarket |
| Warranty | 3-12 months against manufacturing defects |
| Brand | Applicable Models |
|---|---|
| John Deere Tractor | 6403, 6603, 5076EL, 5076EN, 5078E, 5082E, 5083EN, 5085E, 5085M, 5090E, 5090EL, 5090M, 5090R, 5093EN, 5095M, 5095MH, 5100M, 5100MH, 5100ML, 5100R, 5101EN, 5105M, 5105ML, 5115M, 5115ML, 5115R, 5115RH, 5125M, 5125ML, 5125R, 5425N, 5525N, 6100E, 6110E, 6115E, 6125E, 6130E, 7200R, 7215R, 7230R |
| John Deere Backhoe Loader | 310J, 310K, 310L, 310SJ, 310SJTC, 310SL, 310TJ, 315SJ, 315SL, 325J, 325SL, 410J, 410L, 710J, 710L |
| John Deere Excavator | 120D, 130G, 130GLC, 160DLC, 160GLC, 180GLC, 200DLC, 200G, 210G, 210GLC, 2154G, 2154GLC, 240DLC, 2454D, 250GLC, 270CLC, 270DLC, 290GLC, 2954D, 300GLC, 350DLC, 350GLC, E130, E140, E140LC, E210, E230, E230LC, E240, E260, E260LC, E300II, E400 |
| John Deere Combine | 1076, 1450, 1470, 1570, 3518, 9560, 1450CWS, 1450WTS, 1550CWS, 1550S, 1550WTS, 9470STS, 9560i, 9560SH, 9660STS, 9760STS, C100, C230, C440, L70, R230, S540, S650, S660, S670, S670HM, S760, S770, T550, W210, W330, W430, W540, W550, W650, W80 |
| John Deere Motor Grader | 620G, 620GP, 622G, 622GP, 670G, 670GP, 672G, 672GP |
Every minute your John Deere tractor or heavy equipment sits idle due to a faulty belt tensioner costs money—whether it's missed deadlines in the field or delayed construction schedules. Many operators face the frustration of short-lived aftermarket parts that fail prematurely, or the sticker shock of OEM parts with 30-50% higher prices and 2-4 week lead times. When your 4045 or 6068 engine belt slips because of a worn tensioner, the resulting downtime can derail your entire operation.
Our Belt Tensioner RE548027 is engineered to solve these exact problems. As a professional supplier with 10 years of global export experience, we ensure this tensioner meets OEM specifications through strict quality control—from material inspection to pre-shipment testing. Unlike generic parts that compromise on durability, our tensioner is designed for the demanding conditions of agricultural, construction, and mining operations. With over 10,000 SKUs in stock at our Guangzhou warehouse, we can ship your RE548027 within 2-5 working days, so you can get back to work without unnecessary delays.
The belt tensioner plays a vital role in maintaining proper tension on your John Deere engine's accessory belt, which drives critical systems like the alternator, water pump, and hydraulic pump. In high-hour applications—whether tilling fields with a 5085E tractor or loading materials with a 310L backhoe—the tensioner must consistently absorb vibration and adjust for belt wear. A failing tensioner can cause belt slippage, leading to overheating, battery drain, or even complete system failure. This makes choosing a reliable replacement not just a matter of avoiding downtime, but protecting your engine from costly secondary damage.
Our RE548027 tensioner incorporates several key design features to ensure durability. The robust steel housing provides structural integrity under constant load, while the precision-machined pivot points ensure smooth adjustment throughout the part's lifespan. The high-tension spring is calibrated to maintain optimal belt tension across temperature extremes, from freezing winter mornings to hot summer afternoons. Each unit undergoes functional testing to verify tension retention and resistance to wear, ensuring it performs like the original part. This attention to detail means fewer replacements and more uptime for your equipment.
Opting for the lowest-priced belt tensioner may seem like a budget-friendly choice, but it often leads to higher long-term costs. Counterfeit or poorly made tensioners typically have 1.5x shorter lifespans, requiring frequent replacements and repeated downtime. In contrast, our ISO-certified tensioner delivers OEM-equivalent performance at a fraction of the cost. Consider this: if your equipment generates $1,000 per day in productivity, even a single day of downtime from a failed tensioner costs more than investing in a quality replacement. With our 3-12 month warranty, you can trust that this tensioner will perform as expected, minimizing your total cost of ownership.
We've earned the trust of customers in 120+ countries by focusing on quality and reliability. Our tensioners come from ISO-certified factories, with every unit inspected for material quality and performance before shipment.
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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