Belt Tensioner 87326910 J914086 for CASE 650K 750K 850K 1150G 1155E 1088 1188 CX130 CX210 1840 1845C 580K 621B

Product Specifications

Compatible Models

Tired of Fan Belt Slippage and Engine Overheating on Your CASE 1088 or CX210? Get the Correct 87326910 Belt Tensioner for Reliable Operation

Every unplanned stoppage on a CASE excavator or loader costs operators thousands in lost productivity — especially when caused by belt tension failure. We’ve seen repeated failures from counterfeit tensioners that lose preload within 200 hours, leading to fan misalignment, overheating, and cascading engine damage. OEM parts often require 3-week lead times and carry 40% price premiums — delaying critical repairs during peak season.

OEM-Equivalent Quality, Ready to Ship from Guangzhou Warehouse

This CASE belt tensioner is manufactured in ISO 9001-certified facilities and undergoes full pre-shipment performance testing: dynamic load cycling, spring force verification at 120°C, and dimensional validation against CASE engineering drawings. Designed for high-duty cycles on excavators like the CX210 and loaders like the 1845C, it maintains consistent belt deflection under continuous operation — preventing slippage during hydraulic boom lifts or loader bucket loading.

Where This Part Works

This belt tensioner operates under demanding conditions across construction sites, quarries, ports, and agricultural operations. On CASE 1088 dozers working 16-hour shifts in desert heat, it sustains stable tension despite ambient temperatures exceeding 45°C and vibration levels up to 8.2 g RMS. In port logistics applications with CX210 excavators handling salt-laden containers, corrosion resistance and precise pivot geometry ensure uninterrupted cooling system function — making it essential for CASE excavator tensioner reliability.

Engineering Details That Matter

The housing is precision-cast from ASTM A48 Class 35 gray iron, offering superior damping over aluminum alternatives and resisting micro-fracture under cyclic torsional loads. The internal spring is made from ASTM A228 music wire, heat-treated to Rc 48–52 and tested for 500,000 compression cycles without yield loss. Pivot pin tolerances are held to ±0.015 mm to prevent eccentric wear and premature bushing failure. Surface finish on all sliding interfaces meets Ra ≤ 0.8 µm per ISO 4287, minimizing friction-induced heat buildup. All fasteners meet SAE Grade 8 specifications with zinc-nickel plating (ASTM B633, SC4) for 720-hour salt-spray resistance.

The Real Cost of Wrong Parts

A $42 counterfeit tensioner may save $18 upfront but typically fails before 300 operating hours — triggering fan belt replacement, coolant flush, and labor charges averaging $320. Worse, undetected tension loss causes engine overheating, risking $2,800+ cylinder head warping repairs. Our 87326910 belt tensioner for CASE 1088 delivers verified 2,500+ hour service life per ISO 15643-2 test protocols. When factoring downtime, labor, and secondary damage, the total cost of ownership (TCO) favors our part by 3.7× over low-cost alternatives — especially for CASE loader belt tensioner applications requiring daily reliability.

Why Customers Trust XUNPO

Packaging & Shipping

• Individually boxed in rigid corrugated carton with molded EPS foam cradle to protect pivot mechanism and spring assembly
• In-stock items ship within 2–5 working days after payment 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, updated until delivery
• Minimum order quantity: 1 piece — supporting urgent field repairs

Get Your CASE Belt Tensioner Now

Your CASE CX210 won’t wait — and neither should your repair. Send us your machine model, current part number (e.g., J914086 or 87326910), and required quantity. You’ll receive a competitive quote within 24 hours. First-time buyers can request a sample for physical verification before bulk ordering. Every day your equipment sits idle costs revenue — act now to restore uptime.

Frequently Asked Questions