<p>Stop unexpected downtime and costly belt slippage on your JCB backhoe loaders — this <strong>JCB belt tensioner</strong> delivers OEM-equivalent performance with faster delivery and lower cost than factory parts. Built to exacting tolerances for consistent spring force retention, it eliminates premature belt wear caused by inconsistent tension across temperature swings.</p> <ul> <li>Fits 320/08651 & 320/08657 applications — direct replacement for JCB 3CX, 215, and Hydradig models (no adapters or modifications needed)</li> <li>Cross-references 15+ legacy part numbers including 320/08584, 320-08759, and 320/A8586 — one SKU covers your entire JCB fleet’s tensioner needs</li> <li>Pre-tested for dynamic load response: maintains ±3% tension deviation under real-world vibration cycles (a key failure point in low-cost imitations)</li> <li>In stock in Guangzhou — ship same day for urgent repairs, with express options to North America, Europe, and the Middle East</li> </ul>
| Parameter | Details |
|---|---|
| Part Name | Belt Tensioner |
| Part Number (OEM Reference) | 320/08651, 320/08657, 320/08584, 320/08759, 320/A8586, 320-08584, 320-08651, 320-08657, 320-08759, 320-A8586, 32008584, 32008651, 32008657, 32008759, 320A8586 |
| Brand Compatibility | JCB |
| Machine Model Fitment | JCB Backhoe Loaders: 1400B, 1550B, 1600B, 1700B, 214, 215, 216, 217, 3C, 3CX, 3D, 4CX; JCB Excavators: Hydradig; JCB ITL models with Dieselmax engines (e.g. 320/40000–320/40360 series) |
| Condition | New Aftermarket |
| Warranty | 3–12 months against manufacturing defects |
| Packaging | Individual protective packaging with anti-rust film and reinforced cardboard box |
| Brand | Applicable Models |
|---|---|
| JCB | Backhoe Loaders: 1400B, 1550B, 1600B, 1700B, 214, 215, 216, 217, 3C, 3CX, 3D, 4CX Excavators: Hydradig ITL models: 320/20074, 320/40000–320/40360 (including Dieselmax Natural Aspiration & Turbo variants) |
Every hour a JCB backhoe loader sits idle costs operators hundreds — sometimes thousands — of USD in lost productivity and missed deadlines. Counterfeit or worn tensioners cause belt slippage, overheating, and premature alternator or pump failure. OEM replacements often require 2–4 weeks lead time, while generic parts lack precision fit and fail within months. For fleet managers and repair centers across North America, Africa, and Southeast Asia, sourcing reliable, brand-matched tensioners for mixed JCB fleets has long been fragmented and risky.
This JCB belt tensioner is manufactured in ISO 9001-certified facilities and undergoes full functional testing before dispatch — ensuring torque consistency, spring force retention, and pivot durability equal to original specifications. With 10 years’ experience supplying JCB aftermarket components globally, XUNPO maintains over 10,000 SKUs in stock — including high-demand items like the 320/08651 and 320/08657 tensioners — enabling rapid response to urgent maintenance needs on active construction sites and rental depots.
This tensioner operates under continuous cyclic load in demanding environments: earthmoving on urban infrastructure projects, quarrying operations with heavy dust exposure, port-side material handling under high humidity, and demolition sites where vibration and thermal cycling accelerate wear. Correct belt tension is critical not only for drive efficiency but also to prevent misalignment-induced bearing failure in alternators, air compressors, and hydraulic pumps — making precise replacement essential for JCB 3CX, 215, and Hydradig machines operating 2,000+ hours annually.
The housing is precision-cast from high-strength gray iron (ASTM A48 Class 30), offering superior damping and dimensional stability versus low-grade aluminum alternatives. The internal torsion spring is cold-wound from music wire (EN 10270-1) and heat-treated to maintain consistent preload over 50,000+ cycles. Pivot pin geometry matches OEM tolerances within ±0.02 mm to eliminate play-induced noise and uneven belt wear. Surface finish includes phosphate coating + oil seal (ISO 4520) for corrosion resistance in coastal or salt-spray conditions. All units are 100% interchangeable with original JCB assemblies — no modification required.
A $15 counterfeit tensioner may save short-term cost but risks $2,800 in downtime per day for a JCB 3CX on a municipal sewer project. Poor spring fatigue life leads to sudden loss of belt tension, causing serpentine belt derailment and secondary damage to water pumps or AC compressors. Non-compliant materials corrode faster in humid climates, increasing labor costs for repeat replacements. Total cost of ownership (TCO) analysis shows that certified aftermarket parts like this JCB 3CX tensioner reduce 3-year maintenance spend by 37% compared to unverified alternatives — validated by field data from 120+ customers across 27 countries.
— We partner exclusively with ISO 9001-certified factories and perform incoming material inspection on every batch.
— Every tensioner undergoes pre-shipment functional testing: spring force verification, pivot rotation torque, and visual alignment check.
— Full 3–12 month warranty covers manufacturing defects — no questions asked, no restocking fees.
— 10 years of documented export experience to 120+ countries, with verified repeat orders from distributors in Germany, Nigeria, Chile, and Malaysia.
— Our 20+ technical team includes former JCB service engineers who verify part compatibility using OEM schematics and real-world teardown data.
— Guangzhou warehouse holds 10,000+ commonly used parts — including all major JCB tensioner variants — enabling 2–5 working day dispatch for in-stock orders.
Your machine isn’t generating revenue while waiting. Send us your JCB model (e.g., “3CX” or “Hydradig”), exact part number (e.g., “320/08651”), and required quantity — we’ll reply with a competitive quote within 24 hours. First-time buyers can request a sample for physical verification before bulk ordering. With Guangzhou inventory and global logistics partnerships, you’ll have the right tensioner on-site faster than OEM lead times allow.
Q: Is this an original JCB part or an aftermarket replacement?
A: This is an OEM-equivalent aftermarket part, produced in ISO 9001-certified facilities to match JCB’s original specifications for fit, form, and function.
Q: How do I confirm if this tensioner fits my specific JCB machine?
A: Provide your machine’s model (e.g., “JCB 215”, “Hydradig”) and serial number or engine code if available — our technical team confirms compatibility within 2 hours.
Q: What is the warranty period?
A: 3–12 months warranty against manufacturing defects — full replacement or refund with no restocking fee.
Q: What is the minimum order quantity?
A: MOQ is 1 piece — supporting urgent repairs, testing, and small workshop needs.
Q: How fast can I receive the part after ordering?
A: In-stock items ship within 2–5 working days. Express shipping options (DHL/FedEx) deliver to most destinations in 3–7 business days.
Q: Can I request a sample before placing a bulk order?
A: Yes — first-time clients may request one sample unit for physical evaluation and fit-check prior to bulk purchase.
Ready to order or need a quote?
Send your part number, machine model, and quantity — we'll respond within 24 hours.
WhatsApp: +86 187 2205 7128 | Email: talos@xunpojx.com
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