Send a part number, a photo, or a whole BOM — we supply it and stand behind it. EXW Singapore — collect from our office.

3G Electric
CARRIER Crankcase Heater, 120V AC, 200 W, 0.38 in Thick, 63 in Lead Length - Crankcase Heaters
CARRIERCrankcase Heaters

CARRIER Crankcase Heater, 120V AC, 200 W, 0.38 in Thick, 63 in Lead Length

The CARRIER HT31AZ121 is a 200 W crankcase heater designed for 120V AC operation. It features a 0.38-inch thickness and includes 63-inch lead length. This component is a CARRIER-branded replacement part for…

SKU 3G-OTH-59804

Brand
CARRIER
Item
Crankcase Heater, 120V AC, 200 W, 0.38 in Thick, 63 in Lead Length
Part Number
HT31AZ121
Category
Crankcase Heaters
Available to Order
Also known as:HT31AZ121CARRIER
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

CARRIER
Manufacturer Part Number
HT31AZ121
Voltage
120V AC

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The CARRIER HT31AZ121 is a 200 W crankcase heater designed for 120V AC operation. It features a 0.38-inch thickness and includes 63-inch lead length. This component is a CARRIER-branded replacement part for maintaining proper oil temperature in compatible compressors.

Frequently Asked Questions

What is the CARRIER HT31AZ121 crankcase heater used for?

The CARRIER HT31AZ121 crankcase heater is used to maintain proper oil temperature in compatible compressors, preventing refrigerant migration and ensuring reliable compressor startup. It is a 200 W, 120V AC replacement part commonly applied in HVAC and refrigeration systems.

What are the specifications of the CARRIER HT31AZ121 crankcase heater?

The CARRIER HT31AZ121 crankcase heater operates at 120V AC with a power rating of 200 W. It has a 0.38-inch thickness and a 63-inch lead length. This CARRIER-branded component is designed as a direct replacement for maintaining compressor oil temperature.

Where to buy the CARRIER HT31AZ121 crankcase heater worldwide?

3G Electric supplies the CARRIER HT31AZ121 crankcase heater worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this CARRIER replacement part.

How to install the CARRIER HT31AZ121 crankcase heater?

To install the CARRIER HT31AZ121 crankcase heater, ensure power is disconnected. Wrap the heater snugly around the compressor sump, securing it with the provided clamps. Connect the 63-inch leads to a 120V AC supply. Verify proper contact for efficient heat transfer to maintain oil temperature.

Used in

Common applications for CARRIER
Commercial HVAC maintenance — Carrier blower wheel LA11ZD058 for air movement across heat exchangers or cooling coils
Refrigeration compressor lubrication — Carrier POE220vs ISO-220 polyol ester oil for HFC refrigerant systems
Chiller control replacement — Carrier programmed SCB board 30HX501316 for 30HXC106-660 compressor sequencing and safety interlocks
Residential and light-commercial cooling — Carrier wall-mount mini-split air handler 38MARBQ12AA1 for spaces 100–500 sq ft
HVACR temperature regulation — Carrier temperature sensor RC6600035 for monitoring and signaling control components
Condensate management — Carrier condensate trap 319830-402 for draining condensation from AC or furnace coils
Not sure this is the right part? Photo-identify it→

CARRIER Products

3G Electric supplies CARRIER crankcase heaters. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Compatible alternatives & equivalents

More from CARRIER

View all CARRIER parts →

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first