Product Specifications
| Parameter | Details |
|---|
| Part Name | Belt Tensioner |
| Part Number (OEM Reference) | 87326910, J914086 |
| Brand Compatibility | CASE |
| Machine Model Fitment | CX210, CX130, CX240LR, 650K, 750K, 850K, 1088, 1188, 1840, 1845C, 580K, 621B, and 100+ CASE excavators, loaders, dozers, tractors, forklifts, combines, sprayers, motor graders, telehandlers, trenchers, horizontal drills |
| Engine Compatibility | 4390, 4391, 6590, 4390T, 4391T, 4391TA, 6590T, 6590TA, 6830T, 6830TA, RP110, RP135, RP165, RP65, RP85, RPZ125, RPZ145, RPZ65, RPZ85 |
| Condition | New Aftermarket |
| Warranty | 3–12 months against manufacturing defects |
| Packaging | Original sealed box with anti-rust coating and protective foam |
Compatible Models
| Brand | Applicable Models |
|---|
| CASE Excavator | CX130, CX160, CX210, CX210LR, CX240, CX240LR, 488CLS, 488P, 588, 688, 688BCK, 688B-P, 688B-PSU, 688C, 788CK, 788P, 788PSU, 888, 888B, 888BCK, 888BCKE, 888CK, 888CKE, 988CK, 988CKE, 988P, 1088, 1085C, 1086B, 1088CK, 1088CL, 1088CS, 1088MAXI, 1088P, 1088P4A, 1187C, 1188CK, 1188LC, 1188P, 1188P4A, 1188PM, 1288CK, 1288LC, 1288NLC |
| CASE Loader | 1840, 1845C, 40XT, 480E, 480E LL, 480F, 480F LL, 521D, 570LXT, 570MXT, 580K, 580L, 580LE, 580LSP, 580LXT, 580M, 580SK, 580SL, 580SLE, 580SM, 60XT, 621B, 621C, 680L, 70XT, 721B, 721C, 75XT, 780D, 821B, 821C, 85XT, 90XT, 95XT, W11B, W14B, W14C |
| CASE Dozer | 1550, 1085B, 1088CK, 1088CL, 1088CS, 1088MAXI, 1088P, 1088P4A, 1150E, 1150G, 1155E, 1650K, 1850K, 1850K LGP, 1850K LT, 650K, 750K, 850K, 850E, 850G, 855E |
| CASE IH Tractor | 1550, 1896, 2096, 7210, 7220, 7230, 7240, 7250, 8820, 8825, 8830, 8840, 8860, 8870, 8880, 8910, 8920, 8930, 8940, 8950, 1150E, 1150G, 1150H, 1155E, 450C, 455C, 550G, 550H, 650G, 650H, 750H, 850D, 850E, 850G, 850H, 855D, 855E, MX100–MX220 series |
| CASE Forklift | 584E, 585E, 585G, 586E, 586G, 588G |
| CASE IH Combine | 1620, 1640, 1660, 1680, 2344, 2366, 2388 |
| CASE IH Sprayer | 3150, 3185, 3210, SPX3185, SPX3200, SPX3200B, SPX3310, SPX4260 |
| CASE Motor Grader | 845 |
| CASE Telehandler | 686G, 686GXR, 688G |
| CASE IH Trencher | 660, 860, 960 |
| CASE Horizontal Drill | 6030 |
Tired of Belt Slippage and Engine Overheating? Get the Right CASE belt tensioner for Your CX210 and 650K Series
Every unplanned downtime costs operators $2,000–$5,000 per day in lost productivity and labor. A worn or mismatched CASE belt tensioner causes fan belt slippage, leading to engine overheating, hydraulic system failure, and unexpected shutdowns — especially during summer operations or high-load excavation cycles. Many buyers waste weeks waiting for OEM parts or unknowingly install counterfeit tensioners that fail within 300 operating hours.
OEM-Equivalent Quality, Ready to Ship
This CASE belt tensioner is manufactured in ISO 9001-certified factories and undergoes pre-shipment performance testing on dynamic tension calibration rigs. Designed for heavy-duty use in CASE excavators and loaders, it maintains consistent belt preload across temperature ranges from –20°C to +120°C — critical for stable cooling system operation during continuous digging or grading work. With 10 years of global export experience and 10,000+ SKUs in stock, we deliver precision-engineered replacements without OEM delays or price premiums.
Where This Part Works
This tensioner operates under high-vibration, dust-heavy, and thermally cycling conditions — from quarry blasting sites and port container handling to municipal road repair and demolition projects. In CASE CX210 excavators, it directly regulates coolant fan drive tension; in 650K and 750K wheel loaders, it ensures optimal alternator and air compressor output. Failure here risks cascading damage: overheated engines, blown hoses, and seized water pumps — all avoidable with correct CASE loader belt tensioner selection.
Engineering Details That Matter
Forged steel housing provides 2.3× higher tensile strength than cast alternatives, resisting deformation under peak load. Precision-ground pivot shaft tolerances are held to ±0.02 mm, ensuring smooth rotation and eliminating binding after 5,000+ cycles. The integrated spring assembly uses ASTM A228 music wire with shot-peened surface treatment for fatigue resistance up to 1.2 million cycles. Sealed ball bearings meet IP65 standards, preventing dust ingress and grease washout in muddy or saline environments. All dimensions match OEM blueprints — no shimming or bracket modification required.
The Real Cost of Wrong Parts
A $45 counterfeit tensioner may save $20 upfront but often fails before 500 operating hours — triggering a $1,200 engine teardown, $300 in labor, and $8,000 in site delay penalties. Genuine-equivalent parts like this CASE excavator tensioner comply with SAE J1922 and ISO 8573-1 standards for rotational balance and torque consistency. Total cost of ownership drops by 41% over 3 years when factoring in extended service intervals, reduced coolant loss, and zero secondary failures — not just unit price.
Why Customers Trust XUNPO
We partner exclusively with ISO 9001-certified factories and perform incoming material inspection on every batch. Every CASE belt tensioner undergoes full functional testing at 1.5× rated load before shipment. We offer 3–12 month warranty covering manufacturing defects — no questions asked. With 10 years’ export experience, we’ve shipped to 120+ countries including USA, Germany, Nigeria, Australia, Chile, and Vietnam. Our 20+ technical team verifies part compatibility within 2 hours using OEM service manuals and real-time machine databases. Our Guangzhou warehouse holds 10,000+ commonly used parts, enabling 2–5 working day dispatch on in-stock items.
Packaging & Shipping
- Individually sealed in anti-corrosion VCI film, cushioned with molded EPE foam, packed in reinforced double-wall corrugated carton
- In-stock items ship within 2–5 working days after order confirmation
- Flexible logistics: Express (DHL/FedEx/UPS), air freight, or sea freight — all options available upon request
- Real-time tracking number provided immediately after dispatch
- MOQ is 1 piece — supports urgent field repairs and pilot validation
Get Your Parts Now
Your excavator or loader shouldn’t sit idle waiting for parts. Send us your part number (e.g., 87326910 or J914086), machine model (e.g., CASE CX210), and quantity — we’ll email a competitive quote within 24 hours. First-time customers can request a sample for physical verification before bulk ordering. Every hour saved is revenue recovered.
Frequently Asked Questions
Q: Is this an original CASE part or an aftermarket replacement?
A: This is an OEM-equivalent aftermarket part, manufactured in ISO 9001-certified facilities to match original CASE specifications for fit, form, and function.
Q: How do I confirm if this belt tensioner fits my specific machine?
A: Provide your exact machine model (e.g., CASE 650K) and serial number if available — our technical team confirms compatibility within 2 hours using official CASE service documentation.
Q: What is the warranty period?
A: 3–12 months depending on application, covering manufacturing defects. Defective units are replaced free of charge with proof of purchase.
Q: What is the minimum order quantity?
A: 1 piece — no bulk requirement. Ideal for emergency repairs, sample testing, or single-machine maintenance.
Q: How long does shipping take?
A: In-stock items ship within 2–5 working days. Express delivery reaches most destinations in 3–7 business days; air and sea freight timelines vary by destination.
Q: Can I receive a sample before placing a bulk order?
A: Yes — first-time customers may request one sample for physical testing and dimensional verification prior to full order.
Ready to order or need a quote?
Send your part number, machine model, and quantity — we'll respond within 24 hours.
WhatsApp: +86 13316055942 | Email: talos@xunpojx.com
