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Worldthump Hydraulic Pump Assembly – CH13990 Replacement, 11cc, for John Deere 850, 950 & 1050 Tractors
🚜 Replacement Hydraulic Pump – 11cc Displacement, Splined Shaft Design, Agricultural Tractor Hydraulic System Component
Restore your tractor’s hydraulic system with the Worldthump Hydraulic Pump Assembly, designed as an aftermarket replacement for compatible equipment using part number CH13990. Intended for select John Deere 850, 950, and 1050 tractor applications, this 11cc pump is designed to support hydraulic system operation when the original pump requires replacement.
🚜 Best For
🌾 John Deere 850 Tractors – For compatible configurations using the CH13990 hydraulic pump.
🚜 John Deere 950 Tractors – Suitable for applications requiring the matching 11cc pump.
🛠️ John Deere 1050 Tractors – Designed for compatible hydraulic system configurations.
🔧 Hydraulic System Repairs – For replacing a worn or damaged compatible pump.
🚜 Agricultural Equipment Maintenance – A replacement component for suitable tractor repair projects.
⭐ Key Features
⚙️ CH13990 Replacement – Cross-references the specified hydraulic pump part number.
💧 11cc Pump Displacement – Designed for hydraulic applications requiring an 11cc pump.
🔩 Splined Shaft Design – Intended for compatible drive connections.
🚜 Tractor-Specific Application – Listed for select John Deere 850, 950, and 1050 models.
🛠️ Aftermarket Replacement – An alternative to sourcing the corresponding original replacement part.
🔧 Hydraulic System Component – Supports the hydraulic functions of compatible equipment when correctly matched and installed.
⚙️ Designed for Hydraulic System Maintenance
A properly matched hydraulic pump helps supply hydraulic fluid flow for compatible tractor systems. Before installation, verify the pump specification and inspect the surrounding hydraulic system to help prevent damage from contamination or incompatible components.
🔩 Check Shaft & Pump Compatibility
Hydraulic pumps can differ by displacement, shaft design, and mounting configuration even when used on the same tractor model. Match the existing pump and OEM part number before ordering to help ensure the replacement is suitable for your equipment.
📦 Product Details
Brand: Worldthump
Product Type: Hydraulic Pump Assembly
Replacement Part Number: CH13990
Pump Displacement: 11cc
Compatible Equipment Make: John Deere
Compatible Models: 850, 950, 1050
Shaft Type: Splined shaft design; verify exact Tractor hydraulic system
Part Type: Hydraulic Pump
Package Contents: Hydraulic pump assembly; verify included components against the product photos and seller packaging
⚠️ Important Fitment & Installation Notes
Some John Deere 850, 950, and 1050 tractors use different pump configurations. Check the shaft, mounting points, and displacement carefully.
Professional installation is recommended.
Before installing a replacement pump, inspect and clean the hydraulic system as appropriate, and use clean hydraulic fluid and serviceable filters.
Follow the tractor manufacturer’s service instructions and safely relieve hydraulic pressure before performing maintenance.
This is an aftermarket replacement part and should not be assumed to be an original John Deere-manufactured component.
📦 Carefully packed for safe delivery
⚡ Fast shipping from HaytiLab
🤝 Buy with confidence!
