Product Details

25H Coupling Assy Aluminum Replacement Supplier for Industrial Machinery

Premium 25H Coupling Assy for Heavy Equipment Maintenance

Reliable power transmission starts with a high-quality 25H Coupling Assy with Aluminum components. Designed for precise alignment between your engine and hydraulic pump, the 25H coupling series ensures vibration damping and mechanical protection for long-term operations. Whether you are performing an engine rebuild or routine maintenance, selecting an OEM-standard replacement is critical to prevent spline wear and premature failure.

Our 25H series parts are engineered to meet strict technical specifications, providing a seamless fit for 25H model equipment. By using high-grade aluminum alloy, this coupling assembly offers the perfect balance of lightweight design and heavy-duty durability.

Technical Specification for 25H Aluminum Coupling

Attribute	Details
Model NO.	25H / 25 H Series
Product Name	Coupling Assy with Aluminum / Hydraulic Pump Coupling
Part Number	25H (Also referred as 25-H)
Condition	Brand New, OEM Standard Replacement
Type	Flexible Coupling / Power Transmission
Material	High-Strength Aluminum + Reinforced Polymer/Rubber
Application	Excavator Engine Rebuild, Pump Overhaul, Industrial Maintenance
Stock Status	In Stock / Fast Worldwide Dispatch
Payment Terms	T/T, Western Union, MoneyGram
Delivery	DHL, Fedex, EMS, UPS, Air/Sea Freight

Why Choose Our 25H Coupling? - Performance Comparison

To help procurement managers make the best decision, we compared our OEM-standard 25H replacement with typical aftermarket options.

Comparison Factor	Our 25H OEM Standard	Standard Aftermarket
1. Material Quality	Reinforced A380 Aluminum Alloy	Recycled Aluminum Scrap
2. Precision Fit	H7 Tolerance Machining	Loose Spline Clearance
3. Vibration Control	High-Density Elastic Element	Standard Rigid Rubber
4. Service Life	5000+ Working Hours	Approx. 1500-2000 Hours
5. Heat Resistance	Up to 120 Degrees Celsius	Standard 80 Degrees Celsius
6. Installation	Direct Drop-in Replacement	May Require Modification

Contact Our Specialist for Bulk Pricing

Direct Support for Repair Shops and Fleet Owners

Expert Maintenance Guide: 25H Coupling FAQ

1. How to identify if your 25H coupling assy needs replacement?Common symptoms include unusual metallic clicking noises during startup, increased vibration in the hydraulic pump area, or visible metal shavings around the bell housing. If you notice these during a maintenance check, replacing the 25H coupling immediately prevents damage to the pump shaft.

2. Is this 25H aluminum coupling compatible with OEM pump shafts?Yes, our 25H coupling is manufactured to precise OEM dimensions. It is specifically designed to match the spline count and shaft diameter of the 25H series engine-to-pump connections.

3. Why Choose This 25H Coupling Assy?Our product features an OEM-standard tri-metal structure and is trusted by repair shops and equipment fleets globally for its high reliability and cost-effectiveness.

4. Not sure how this issue affects your equipment?

Our technical team helps operators:

Identify potential risks during maintenance
Recommend suitable replacement parts if needed
Support both inspection advice and parts supply

Send Your Part Number for Instant Quote

Please fill out the details below, and our team will get back to you with availability and shipping costs.

About Our Engine Parts Supply

We are a leading provider of high-performance engine assemblies and components for major brands including Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai. Our core inventory focuses on delivering precision-engineered parts for heavy-duty applications.

Our main product range includes: Cylinder Liners, Pistons, Piston Rings, Main Bearings, Con Rod Bearings, Thrust Washers, Full Overhaul Gasket Kits, Fuel Injection Pumps, Injectors, Crankshafts, Turbochargers, Water Pumps, Oil Pumps, Cylinder Blocks, Cylinder Heads, and Connecting Rods.

Cummins engine rebuild kit Komatsu excavator pump parts Caterpillar diesel engine overhaul Isuzu marine engine components Kubota tractor engine spares Yanmar generator parts supplier Weichai truck engine assembly Replacement piston for 6BT Heavy duty crankshaft supplier OEM turbocharger for construction Cylinder head for 4HK1 Fuel pump for D6D engine Water pump for PC200-8 Engine gasket kit for S6K Piston ring set for V2403 Main bearing for NT855 Connecting rod for 4D95 Oil pump for C9 engine Liner kit for 4TNV98 Aftermarket diesel engine parts China

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