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JOHNSON CONTROLS Pneumatic Oil Indicator Cartridge A-4000-121 - Compressed Air Treatment Replacement Parts
JOHNSON CONTROLSCompressed Air Treatment Replacement Parts

JOHNSON CONTROLS Pneumatic Oil Indicator Cartridge A-4000-121

The JOHNSON CONTROLS Pneumatic Oil Indicator Cartridge, part number A-4000-121, is a replacement cartridge for compressed air treatment systems. This component is designed as a direct replacement for models 38Y085…

SKU 3G-OTH-198031

Also listed as: A4000121 · A 4000 121

Brand
JOHNSON CONTROLS
Item
Pneumatic Oil Indicator Cartridge A-4000-121
Category
Compressed Air Treatment Replacement Parts
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

JOHNSON CONTROLS
Manufacturer Part Number
A-4000-121

Technical Documents

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JOHNSON CONTROLS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The JOHNSON CONTROLS Pneumatic Oil Indicator Cartridge, part number A-4000-121, is a replacement cartridge for compressed air treatment systems. This component is designed as a direct replacement for models 38Y085 and A-4000-120.

Frequently Asked Questions

What is the JOHNSON CONTROLS A-4000-121 pneumatic oil indicator cartridge used for?

The JOHNSON CONTROLS A-4000-121 is a replacement cartridge used in compressed air treatment systems to indicate oil levels. It is commonly applied in industrial pneumatic circuits, HVAC controls, and plant maintenance where reliable oil monitoring is required to protect downstream equipment.

What are the specifications of the JOHNSON CONTROLS A-4000-121?

The JOHNSON CONTROLS A-4000-121 is a pneumatic oil indicator replacement cartridge. Its manufacturer part number is A-4000-121, and it directly replaces models A-4000-120 and A-4000-120. This component is designed for compressed air treatment systems and is identified by SKU A-4000-121.

Where to buy the JOHNSON CONTROLS A-4000-121 worldwide?

You can source the JOHNSON CONTROLS A-4000-121 pneumatic oil indicator cartridge through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring the part reaches your facility reliably.

How to install the JOHNSON CONTROLS A-4000-121 replacement cartridge?

To install the JOHNSON CONTROLS A-4000-121, first depressurize the compressed air system and remove the old cartridge. Insert the new cartridge securely, ensuring proper alignment with the indicator housing. Re-pressurize and check for leaks. Always follow JOHNSON CONTROLS guidelines for safe installation.

Used in

Common applications for JOHNSON CONTROLS
Industrial refrigeration — Johnson Controls P170SA-1C dual pressure control for compressor protection in ammonia or halocarbon systems
Chiller plant automation — Johnson Controls VA7810-HGA-2 electric globe valve actuator for modulating chilled water flow in VG7000 series valves
Pneumatic HVAC retrofit — Johnson Controls T-4002-302 conversion kit for upgrading existing Robertshaw thermostats in commercial buildings
Cooling tower water management — Johnson Controls V-4332-1007 pneumatically actuated diaphragm valve for 3-way diverting of water flow
Boiler fuel oil pressure monitoring — Johnson Controls P545NCB-25C electronic lube oil pressure control with alarm for burner management systems
Process pressure sensing — Johnson Controls P599AAPS105C pressure transmitter with IP67 rating for washdown zones in food and beverage plants

JOHNSON CONTROLS Products

3G Electric supplies JOHNSON CONTROLS compressed air treatment replacement parts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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