JLG Rotary Coupling Seal Kit 7016342 – 1660223 4WS Boom Lift Swivel Joint

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Rotary Coupling Seal Kit 7016342 – Optimized Product Page Content

JLG Rotary Coupling Seal Kit 7016342

🔹 Product Overview

The Rotary Coupling Seal Kit with JLG Part Number 7016342 is a crucial maintenance kit designed specifically for the Rotary Coupling (or Swivel Joint), JLG Part Number 1660223, used on 4-wheel steer (4WS) JLG Mobile Elevated Work Platforms (MEWPs).

The rotary coupling is a vital component located at the center of the turntable (turret). Its function is to allow the boom and turntable to rotate continuously while simultaneously transferring pressurized hydraulic fluid (and sometimes electrical current) to the stationary chassis (lower frame) for functions like drive and steering.

When the seals within the coupling (1660223) wear out, they cause external leaks or, more critically, internal cross-port leaks (fluid bypassing between circuits). This leads to pressure loss, slow functions, overheating, and erratic steering/drive performance. Using the 7016342 seal kit restores the coupling’s integrity, ensuring safe and reliable 4-wheel steer and drive operation during rotation.

🔹 Key Features & Benefits

✅ Rotary Coupling Repair: Specifically designed to repair the internal seals of the JLG Rotary Coupling, Part Number 1660223.
✅ Eliminates Cross-Port Leaks: Crucial for maintaining separation and pressure integrity between drive/steer circuits during turret rotation.
✅ Restores 4WS Function: Ensures steering and drive systems function reliably regardless of turntable position.
✅ Cost-Effective Solution: Repairs the expensive rotary coupling, providing significant savings over full component replacement.
✅ Direct Replacement: High-quality aftermarket or genuine OEM equivalent for JLG seal kit 7016342.

🔹 Technical Details

Detail	Specification
JLG Seal Kit PN	7016342
Compatible Coupling PN	1660223 (Rotary Manifold)
Condition	New Aftermarket or Original Equipment Manufacturer (OEM)
Type	Hydraulic Rotary Coupling Seal Kit
Components	Custom O-rings, seals, and backing rings for rotary manifold.
Function	Seals internal hydraulic passages within the rotary coupling to prevent leakage and fluid mixing.
Intended Use	Repair of 4-Wheel Steer JLG Boom Lift Rotary Couplings.
Installation Note	Requires careful disassembly and reassembly in a clean hydraulic environment.
Warranty	Standard warranty against manufacturing defects (varies by supplier)

🔹 Compatible JLG Models & Applications

The Rotary Coupling Seal Kit 7016342 is vital for maintaining the hydraulic integrity of 4-wheel steer JLG machines that use the 1660223 coupling. Verify your machine uses coupling 1660223 before purchasing this seal kit.

JLG Equipment Series	Specific Compatible Models (Examples)
Articulating Boom Lifts (4WS)	450A, 450AJ (Verify application)
Telescopic Boom Lifts (4WS)	600S, 660SJ, 800S, 860SJ (Verify application)
Common Application	Fixing leaks and intermittent pressure issues in the drive and steer circuits caused by turntable rotation.

🔹 Why Choose a Quality 7016342 Seal Kit?

Critical Safety Fix: Ensures predictable drive and steering response, especially crucial on rough terrain.
Component Longevity: Timely seal replacement prevents internal metal damage within the expensive rotary manifold.
Precision Sealing: Components are manufactured from materials rated for continuous high-pressure transfer and rotation.
System Reliability: Eliminates internal hydraulic cross-talk, restoring the lift’s original function speed and stability.

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Delivery Times

Average Delivery Time is 10-15 days within worldwide.
For overseas delivery Message Us or Call Toll Free at +8618221399269

General Returns: All returns must be requested within 30 days of invoice.
Please note that this refund policy applies to parts purchases only. There are no refunds available for equipment purchases.

General Returns: All return requests must be made within 30 days of the invoice date. Returned merchandise will ONLY be accepted with an issued Return Authorization number and must be returned within 30 days of issuing that Return Authorization number. Special-Order products, electronics, paints, chemicals, lubricants, LPG tanks, and fire extinguishers are non-returnable once ordered. Returned items must be sent to Shanghai RQMACHINE Equipment with freight prepaid.

All returns, except those involving a Shanghai RQMACHINE Equipment order or product error, will be subject to a 25% restocking charge per line item.

Merchandise returned as defective will be thoroughly tested and inspected. For items verified as defective, Shanghai RQMACHINE Equipment will, at its sole discretion, either repair or replace the merchandise at no charge, or issue a full credit for the defective merchandise, including freight. Merchandise returned as defective but found to be working properly will be subject to a testing fee and the 25% restocking charge per line item.

Credit will not be issued for merchandise damaged due to corrosive materials, abuse, alteration, or misuse.

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