JLG Pressure Switch 70000803 – Hydraulic Sensor for 1350SJP, 340AJ Boom Lifts

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Pressure Switch 70000803 – Optimized Product Page Content

JLG Pressure Switch 70000803

🔹 Product Overview

The Pressure Switch with JLG part number 70000803 is a critical electro-mechanical component used in the hydraulic and control systems of various JLG Articulating and Telescopic Boom Lifts.¹ This switch is essential for monitoring hydraulic system pressure and providing an electrical feedback signal to the machine’s Electronic Control Unit (ECU) or directly to a relay/solenoid. It typically closes or opens an electrical circuit when the hydraulic pressure reaches a specific, calibrated setpoint.

Pressure switches are vital for functions such as safety interlocks, brake release systems, hydraulic oil level monitoring, or activating high-pressure circuits.² The part number 70000803 is the necessary replacement for addressing issues such as drive cutout, brake failure to release, incorrect fault codes, or failure to engage a high-pressure function due to the switch failing to operate correctly at the specified pressure threshold.³

🔹 Key Features & Benefits

✅ Pressure Monitoring: Provides accurate electrical feedback based on hydraulic system pressure reaching a setpoint.

✅ Safety Critical: Essential for various safety interlocks and hydraulic system monitoring functions.

✅ Wide JLG Compatibility: Used across multiple JLG high-reach boom lift platforms.4

✅ Direct OEM Cross-Reference: High-quality aftermarket equivalent for JLG part number 70000803.

🔹 Technical Details

Detail	Specification
Part Number	70000803
Condition	New OEM or high-quality aftermarket replacement
Type	Hydraulic Pressure Switch (Electro-Mechanical Sensor)
Function	Opens or closes an electrical circuit when the monitored hydraulic pressure reaches its calibrated setpoint.
Intended Use	Safety interlocks, pressure activation signals, and system diagnostics.
Electrical Connector	Standard electrical terminal or plug compatible with JLG harness.
Application Location	Screws into a test port or dedicated port on the hydraulic manifold block.
Warranty	Standard 6-12 month warranty against manufacturing defects (varies by supplier)

🔹 Compatible JLG Models & Applications

The Pressure Switch 70000803 is a common component compatible with the hydraulic and electrical systems of the following JLG Boom Lifts. Model compatibility should always be verified using the full machine serial number:

JLG Equipment Series	Specific Compatible Models (Examples)
Articulating Boom Lifts	340AJ, 450AJ, 600AJ (and similar models)
Telescopic Boom Lifts	1200SJP, 1250AJP, 1350SJP (High-reach models)
Common Application	Used for sensing brake pressure (to release brakes), main system pressure for function enablement, or low-pressure indication.

🔹 Why Choose RQ Parts?

Restore Diagnostics: Guarantees the ECU receives accurate pressure signals, preventing nuisance fault codes and function lockout.

Safety Assurance: Ensures pressure-dependent safety circuits function correctly, reducing operational risk.

High Quality: Manufactured to provide accurate and repeatable switching at the specified pressure threshold.

Competitive Pricing: Cost-effective solution for replacing a critical, failure-prone electrical-hydraulic component.

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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.

Before returning any merchandise to Shanghai RQMACHINE Equipment, a Return Authorization Number must be obtained from our sales/customer service department.

Your request must include:

Part Number & Description
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Phone: +8618221399269