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Parts list
|
Ref |
Qty |
Part # |
Part Description |
|
1 |
2 |
87412685 |
HYDRAULIC CYLINDER, |
|
2 |
2 |
83961907 |
CYLINDER END CAP |
|
3 |
2 |
83961908 |
ROD |
|
4 |
2 |
87414969 |
MPER SEAL |
|
5 |
2 |
87415113 |
GLAND |
|
6 |
2 |
87414970 |
SEALKIT, |
|
7 |
2 |
83913375 |
RETAININGWRE |
|
8 |
2 |
87414339 |
RING |
|
9 |
2 |
87440399 |
BACK-UP RING |
|
10 |
2 |
87421142 |
O-RING, |
|
11 |
2 |
87424184 |
KIT |
|
12 |
2 |
87414331 |
SEAL |
|
13 |
2 |
87428020 |
BOLT,Hex, |
|
14 |
4 |
81845037 |
O-RING, |
|
15 |
2 |
83936645 |
HYD CONNECTOR |
|
16 |
2 |
83936644 |
RIGID TUBE |
|
17 |
AR |
87428866 |
KIT |
|
18 |
4 |
85827111 |
PLUG |
Product Description
Heavy-Duty 87428866 Stabilizer Cylinder Service Repair Kit for Case 590SR Backhoe Loaders
Restore rigid machine leveling and eliminate hydraulic drift in your stabilizer arms with Toparts' premium 87428866 outrigger cylinder seal kit. Specifically precision-engineered for the heavy-duty vertical stabilizer cylinders utilized on Case 590SR backhoe loaders, this overhaul service kit is built to survive the relentless structural vibrations, massive pressure shocks, and high side-load friction common in tough trenching, quarrying, and utility applications.
The Toparts Engineering Difference: Engineered for Brutal Outrigger Stress
Backhoe stabilizer cylinders operate under unique mechanical torture. While digging, the entire weight of the machine's rear frame rests on these cylinders, subjecting them to extreme static pressure and continuous lateral bending stress (side-loading). Furthermore, they run directly in the dirt line, exposed to falling rocks, concrete rubble, and thick mud. Standard aftermarket seals quickly suffer from lip distortion or extrusion under these conditions, causing fluid bypass and dangerous machine tilt. At Toparts, we manufacture our Case-compatible kits with explicit material upgrades:
Premium P6000 Polyurethane Matrix: Our primary rod and piston seals are molded from proprietary, industrial-grade P6000 PU. This material provides 40% higher tensile strength and superior extrusion resistance under intense hydraulic pressure spikes compared to standard TPU, keeping the sealing lip razor-sharp and firmly active.
Aggressive Environmental Mud Scraper: Features an engineered double-lip wiper system that vigorously scrapes away abrasive sand, wet clay, and fine dust from the extending rod, protecting the internal sealing elements and cylinder wall from score marks.
Zero-Bleed Heavy Duty Buffer Ring: The integrated step seals and buffer rings utilize precision-filled PTFE compounds backed by premium NBR energizers. This design absorbs sudden shock loads when the backhoe bucket strikes hard ground, preventing localized thermal buildup and maintaining strict holding power.
High Elastic Memory Static Seals: All static O-rings and backup rings are formulated to resist compression set and continuous high oil temperatures up to 120°C, ensuring tight static sealing across the cylinder head connection.
Technical Specifications:
Brand Compatibility: Case IH / Case CE
Equipment Application: Backhoe Loaders (Series 2 / SR Series)
Equipment Model Match: Case 590SR
Sealing Kit Part Number (P/N): 87428866
Application Component: Outrigger / Stabilizer Hydraulic Leveling Cylinder
Material Compound Matrix: High-Performance P6000 PU, Reinforced PTFE + Bronze, Premium NBR
Condition: 100% Brand New Premium Industrial Aftermarket
Tag:Hyundai Excavator Cylinder Seal Kits,Hydraulic cylinder seal kit,Excavator seal kit
