Belt Drive Systems
ISO Certified Quality Assured
2-5 Day Ship In-stock items
3-12M Warranty MOQ 1 piece

Fan Belt J911559 for CASE Loaders & Tractors – High-Strength Replacement

<p>Stop unexpected shutdowns and costly downtime from fan belt failure — this <strong>J911559 belt</strong> delivers OEM-equivalent strength and heat resistance for CASE loaders and tractors that run hard, day after day. Built with aramid-reinforced EPDM rubber, it resists cracking, stretching, and slippage even under high-RPM engine loads — a critical upgrade over generic belts that fail prematurely on 1840, 40XT, or 1150E models.</p> <ul> <li>Fits 30+ CASE machines — including loader models 40XT–95XT, tractor series 650G–2096, and niche units like SPX3185 sprayers and RG140 motor graders</li> <li>Direct replacement for J911559, J911559-A, 90500580, and 73162121 — no guesswork needed</li> <li>Features precise pitch-length tolerance (±0.5mm) and molded cog geometry to match original pulley engagement — essential for consistent cooling and alternator output</li> <li>Backed by XUNPO’s 6-month warranty and 2-hour technical verification — because one wrong belt means hours of lost productivity</li> </ul>

MOQ

1 Piece

Lead Time

2-5 Business Days

Shipping

120+ Countries

Warranty

3-12 Months

Compatible Brands

CAT Komatsu Hitachi Volvo Hyundai Doosan Kobelco SANY XCMG

Product Specifications

ParameterDetails
Part NameFan Belt
Part Number (OEM Reference)J911559, J911559-A, J911559A, 90500580, 73162121, J902309, J903099, J911570
Brand CompatibilityCASE, New Holland
Machine Model FitmentSee full list under "Compatible Models"
MaterialHigh-tensile synthetic rubber with polyester cord reinforcement
ConditionNew Aftermarket
Warranty6-month warranty against manufacturing defects
PackagingIndividual polybag with printed part number and brand logo

Compatible Models

BrandApplicable Models
CASELoader: 1840, 1845C, 40XT, 480E, 480E LL, 480F, 480F LL, 580K, 580SK, 590, 60XT, 621, 680K, 680L, 70XT, 750K, 75XT, 780C, 780D, 85XT, 90XT, 95XT, 580E, 580SE
Tractor: 1150E, 1150G, 1150H, 1150H_IND, 1155E, 650, 650G, 750H, 850D, 850E, 850G, 850H, 850K, 855D, 855E, 1896, 2096
Drilling: 6030
Forklift: 584E, 585E, 586E
Sprayer: 3185, SPX3150, SPX3185, SPX3200B
Motor Grader: 845
New HollandMotor Grader: RG140

Tired of Fan Belt Failures on Your CASE 1840 or 1150E? Get the Right J911559 Belt for Reliable Cooling Performance

Every unscheduled downtime on a CASE loader or tractor costs hundreds to thousands in lost productivity — especially during peak construction or harvest seasons. Counterfeit fan belts stretch, slip, or snap under load, causing engine overheating and potential cylinder head damage. OEM parts often take 3–4 weeks to arrive, halting operations entirely. And sourcing correct belts across multiple CASE models — from 40XT to 2096 — remains frustratingly fragmented.

OEM-Equivalent Quality, Ready to Ship

This J911559 replacement fan belt is manufactured in ISO 9001-certified facilities, rigorously tested for tensile strength, heat resistance, and dimensional accuracy before shipment. Designed specifically for CASE loaders and tractors, it delivers consistent cooling performance during continuous operation — whether your 70XT is grading roads or your 1150E is hauling in mining conditions. With 10 years’ experience supplying 10,000+ SKUs to 120+ countries, we ensure every belt meets original equipment performance standards — no guesswork, no delays.

Where This Part Works

This fan belt operates under high thermal and mechanical stress in demanding environments: road construction sites where ambient temperatures exceed 45°C, quarry operations with heavy-duty cyclic loading, port logistics handling continuous shifts, and agricultural harvesting during summer peaks. In these applications, consistent airflow is critical — failure leads directly to coolant temperature spikes above 105°C, triggering derating or shutdown. The J911559 belt maintains stable tension and grip across wide temperature ranges, making it essential for CASE loader fan belt and CASE tractor fan belt reliability.

Engineering Details That Matter

The belt uses high-tensile synthetic rubber compound rated for continuous service up to 120°C, preventing premature cracking seen in low-grade EPDM alternatives. Polyester cord reinforcement provides superior resistance to elongation under torque load — critical for CASE 1840 fan belt applications where pulley ratios demand stable pitch-line velocity. Dimensional tolerances are held within ±0.3 mm across length and width, ensuring exact fit without manual adjustment or misalignment-induced wear. Surface texture is engineered for optimal friction coefficient against cast-iron and aluminum pulleys, eliminating slippage even when damp or dusty — a common issue in demolition and earthmoving operations.

The Real Cost of Wrong Parts

A $15 counterfeit belt may save upfront but often fails within 200 operating hours — triggering engine overheating, coolant loss, and potential head gasket failure requiring $2,500+ in labor and parts. Industry data shows non-OEM-equivalent belts increase unplanned maintenance frequency by 3.2× versus certified replacements. Total cost of ownership (TCO) includes not just unit price, but downtime penalties, emergency freight surcharges, and technician overtime. This J911559 replacement fan belt for CASE 40XT 70XT meets ISO 16848 and SAE J2432 standards — delivering predictable 2,500+ hour service life and eliminating hidden TCO drivers. J911559 high-strength fan belt for CASE 1150E 850G ensures sustained performance without compromise.

Why Customers Trust XUNPO

We partner exclusively with ISO 9001-certified factories and perform incoming material inspection on every batch. Every J911559 belt undergoes 100% pre-shipment performance testing — including tensile strength verification, dimensional check, and visual defect screening. All units carry a 6-month warranty covering manufacturing defects with full replacement. Our 10-year export track record spans 120+ countries, backed by 20+ in-house technical specialists — all trained on CASE, CAT, Komatsu, and Volvo systems. You’ll receive accurate part confirmation within 2 hours of inquiry. And with 10,000+ SKUs held in our Guangzhou warehouse, this CASE fan belt ships in 2–5 working days — no backorders, no delays.

Packaging & Shipping

  • Each belt sealed in branded polybag with printed J911559 part number and CASE compatibility label
  • In-stock items ship within 2–5 working days after order confirmation
  • Flexible logistics: DHL/FedEx/UPS express (3–7 days), air freight (7–12 days), or sea freight (25–40 days)
  • Real-time tracking number provided upon dispatch
  • Minimum order quantity: 1 piece — supports urgent field repairs

Get Your J911559 Fan Belt Now

Your CASE equipment shouldn’t wait. Send us your machine model (e.g., CASE 70XT or 1150E), required quantity, and destination — we’ll reply with a competitive quote within 24 hours. First-time buyers can request a sample for testing before bulk order. With stock ready in Guangzhou, your J911559 belt ships fast — because every hour your loader or tractor sits idle costs money.

Frequently Asked Questions

Q: Is this an original CASE part or an aftermarket replacement?

A: This is an OEM-equivalent aftermarket fan belt, produced in ISO 9001-certified factories to meet or exceed CASE J911559 specifications.

Q: How do I confirm if this J911559 belt fits my specific CASE machine?

A: Send us your exact model (e.g., CASE 480F or 850G) and serial prefix — our technical team verifies compatibility and replies within 2 hours.

Q: What is the warranty period for this fan belt?

A: We provide a 6-month warranty covering manufacturing defects. If failure occurs due to material or workmanship, we replace free of charge.

Q: What is the minimum order quantity?

A: MOQ is 1 piece — designed for urgent maintenance needs and small repair shops.

Q: How long does shipping take?

A: In-stock items ship within 2–5 working days from Guangzhou. Express options (DHL/FedEx) deliver in 3–7 days depending on destination.

Q: Can I receive a sample before placing a bulk order?

A: Yes — first-time customers may request one sample of the J911559 belt for physical verification and fit testing.

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

Part Type Belt Drive Systems
MOQ 1 Piece
Lead Time 2-5 Business Days (in-stock)
Packaging Export Standard Packaging
Quality ISO Certified Factory
Warranty 3-12 Months
Origin Guangzhou, China
Compatibility CAT, Komatsu, Hitachi, Volvo, Hyundai, Doosan, Kobelco, SANY, XCMG

Shipping Policy

  • In-stock items dispatched in 2-5 business days
  • Multiple freight options: Express, Air, Sea
  • Real-time tracking provided
  • Ships to 120+ countries worldwide
  • Export-standard packaging for all items

Warranty & Quality

  • 3-12 month warranty on all parts
  • ISO-certified factory partners
  • Strict QC inspection before dispatch
  • Zero counterfeit policy -- guaranteed
  • Optional sample testing for new buyers
More Products

RELATED PARTS

Belt Drive Systems

Belt Tensioner for New Holland T6080/T6090/T7.210 – Direct OEM Replacement

<p>Stop unexpected belt slippage and costly downtime on your New Holland T6080/T6090/T7.210 — this <strong>direct OEM-replacement belt tensioner</strong> delivers factory-spec tension retention, even under heavy load cycles and extended operation.</p> <ul> <li>Guaranteed fit for all listed models — including Tier 3-compliant B110/B115 tractors and F4HFE613K B002 engines (a known weak point in older tensioner designs)</li> <li>Replaces 9+ part numbers including <strong>504315786</strong>, so you won’t get stuck sourcing from multiple suppliers</li> <li>Pre-tested for spring force decay resistance — critical for maintaining consistent belt grip over 1,200+ hours</li> <li>Ships same-day from our Guangzhou warehouse when ordered before 3 PM CST</li> </ul>

View Details
Belt Drive Systems

Mower Deck Belt K5763-34711 | Matched Set for Kubota RCK60 Series

<p><strong>K5763-34711 K5763-34710 K5763-34712 K5371-34710 Mower Deck Belt</strong> — aftermarket replacement for Kubota RCK60 series mower decks, BX and G series tractors, featuring high-tensile polyester cords with oil-resistant rubber compounds.</p> <p>Supplied as part of a matched belt drive system set alongside tensioners and pulleys, addressing root-cause wear to prevent repeat failures during mower deck overhauls. Cross-reference verification covers superseded and alternate part numbers across deck generations.</p> <ul> <li>Fits RCK60-24B, RCK60-27B(A), RCK60-29B, RCK60-30B(A), RCK60-32, BX1800, BX2200, G2160, G2460G</li> <li>Precision-molded teeth and heat-resistant construction for consistent engagement</li> <li>ISO 9001 certified manufacturing</li> </ul> <p>Matched system components ship together with overhaul contents verified item by item.</p>

View Details
Belt Drive Systems

Belt Tensioner Kit for Bobcat Skid Steers – Direct Replacement S130–S300, T140–T300, A220–A300

<p>Stop unexpected fan drive failures and costly downtime on your Bobcat skid steer — this <strong>Bobcat belt tensioner kit</strong> delivers OEM-equivalent performance with faster availability and better value than factory parts. Built for high-cycle machines like the S220, T250, and A300, it eliminates guesswork and keeps your loader running through tough jobs.</p> <ul> <li>Includes all 12 critical components — from the <strong>6725212 idler arm</strong> to the 6662997 fan drive idler pulley and torsion spring 6700115 — no missing pieces or cross-referencing headaches</li> <li>Fits 40+ Bobcat models across skid steers (S130–S300), track loaders (T140–T300), and wheel loaders (A220–A300), including legacy units like the 873 and 963</li> <li>Each kit is pre-inspected and bench-tested for proper spring preload and bearing rotation — a must for maintaining consistent belt deflection under load</li> <li>Ships same-day from Guangzhou warehouse; MOQ is just 1 piece, so you can fix today’s breakdown without waiting weeks for OEM backorders</li> </ul>

View Details
Belt Drive Systems

Rebuild Kit Ribbed Belt 3911584 Compatible with Cummins 4BT 6BT

<p><strong>Ribbed Belt 3911584, 8/K Section Serpentine Belt</strong> — compatible with Cummins B3.9L, 4BT, 6BT, 6C8.3 and ISB CM550 engine platforms.</p> <ul> <li>Belongs to the front-end accessory drive system; matched supply with tensioners, idler pulleys and crankshaft seals keeps belt-drive tolerances consistent across the rebuild</li> <li>8-rib profile must align with pulley grooves to prevent premature bearing wear on driven accessories</li> </ul> <p>Overhaul kit contents verified item-by-item before dispatch to match your specific engine build variant.</p>

View Details
Get a Quote

INTERESTED IN
THIS PART?

Send us your inquiry and our technical team will verify the part and provide a competitive quote within 24 hours. MOQ starts from 1 piece.

2h Part Verification
24h Full Quote

Send Your Inquiry

Fill in the form and we'll get back to you within 24 hours.

Response within 24 hours · No commitment required