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5621364
FOTON
5621364 belt tensioner is core automatic tension adjusting component customized for Cummins full-series diesel engines. Installed on engine auxiliary drive system, it provides constant elastic pressure to drive v-ribbed belt, control stable belt tightness during engine acceleration, idling and high-load operation. This belt tensioner solves common faults including belt slipping, abnormal squeaking, uneven belt wear, power transmission loss and belt falling off caused by fatigue spring, stuck pulley and aging tensioner assembly, guaranteeing steady operation of engine alternator, water pump and auxiliary accessories.
1. Integrated Reinforced Cast Housing: Thickened alloy cast tensioner base, high compression and vibration resistance, resist long-term engine resonance impact, not easy to deform or crack under heavy-load engine operation.
2. Constant Torsion Automatic Adjustment: High-fatigue anti-aging torsion spring inside, real-time adjust belt tightness automatically, compensate belt thermal expansion and wear clearance, avoid idle slipping all the time.
3. Smooth Wear-Resistant Pulley Wheel: Precision polished pulley surface with anti-groove coating, reduce belt friction loss, lower running squeaking noise, extend service life of matching drive belt greatly.
4. High & Low Temperature Adaptability: Internal sealed bearing and special lubricating grease, stable rotation performance from -40℃ to +135℃, no bearing jamming or spring failure in high-temperature engine compartment.
5. Standard Exact Dimension: Unified size 21cm*10cm*10cm, net weight 1.8KG, standard mounting hole spacing and central shaft size, fully match Cummins engine mounting bracket structure.
6. Dustproof Sealed Bearing Structure: Double-sided rubber dustproof seal isolates dust, sediment and engine oil contamination, prevent bearing rust and premature wear, reduce later maintenance workload.
7. Easy Plug-And-Play Installation: Pre-assembled complete tensioner assembly, no spring disassembly, hole drilling or angle adjustment needed, fast replacement to save engine maintenance time.
- Part Number: 5621364
- Product Name: Automatic Belt Tensioner / Belt Tension Pulley Assembly
- Applicable Vehicle: Full range Cummins diesel engines
- Product Size: 21cm 10cm 10cm
- Net Weight: 1.8KG
- Main Material: Alloy cast base + sealed high-speed bearing + anti-fatigue torsion spring
- Working Temperature: -40℃ ~ +135℃
- Core Function: Maintain drive belt tension, prevent belt slipping, reduce belt noise, protect auxiliary engine accessories
- Feature: Automatic adjusting, dustproof, low noise, anti-vibration, heat resistant, long fatigue life
- Package: Neutral export carton, full EPE foam wrapping, independent anti-rust protection for bearing shaft
Premium replacement engine drive accessory for Cummins diesel engine trucks, engineering machinery, generator sets and heavy commercial vehicles. Suitable for long-distance highway operation, mountain full-load climbing, construction site dusty working conditions and high-temperature continuous engine running, stabilize belt transmission efficiency and cut down belt replacement frequency.
Please confirm part number 5621364 and engine model before ordering for accurate matching. We support bulk wholesale for global auto parts distributors, machinery repair workshops and engine fleets, with sufficient stock and competitive bulk price. Tension debugging and installation guidance are available after purchase.
