Name: Supco TFXJK Jumper King® 2.0 Thermostat Bypass Tool
Brand: Supco
SKU: TFXJK
Price: 113.31 USD
Availability: InStock

Supco TFXJK Jumper King® 2.0 Thermostat Bypass Tool

Description

Product Summary

The Supco TFXJK Jumper King® 2.0 Thermostat Bypass Tool is a professional-grade replacement part from Supco (Sealed Unit Parts Co.), a trusted name in HVAC/R and appliance parts since 1945. The upgraded Jumper King® 2.0 makes low-voltage troubleshooting faster, cleaner, & easier in the field. Quickly bypass any low-voltage thermostat regardless of terminal style while locating low-voltage shorts & eliminating compressor short cycling.

Specialty HVAC/R tools built to make common service tasks faster, safer, and more professional on the job site.

Key Features

NEW durable rocker switches activate leads/circuits individually as needed
NEW upgraded jumper leads designed for increased field durability
NEW upgraded hook for convenient vertical hanging
NEW easy-to-see red popper fuse helps protect against shorts
NEW front-facing lead ports for a more compact, organized unit
NOW includes L-shaped magnetic tips for easier access in tight applications
Four interchangeable tip styles: Spade adapters: Alligator clamps, Magnetic tips, and Self-piercing insulation tips
No batteries required - powered directly by low voltage in the A/C unit
Rugged housing with rubberized boot, integrated magnet, and fold-out hook
Works on multiple-stage units including heat pumps
For use on low-voltage circuits only (0-30VAC/VDC)
WARNING: Prop 65 info

Specifications

Brand	Supco
Part Number	TFXJK
Part Type	Tool
Voltage	24VAC or Low voltage control circuit
Case Size	7-1/2" x 4" x 3"
Jumper Length	20"
Operating Temperature Range	32°F to 150°F (0°C to 65°C)
Wires	18AWG, 200 Degrees C. 3KV

Frequently Asked Questions

Is there a light to indicate the 24V?
No, there is not.

White Paper

Supco TFXJK Product Specification Sheet (PDF)

What's Included

(1) Supco TFXJK Jumper King® 2.0 Thermostat Bypass Tool

Safety: Always disconnect power and follow lockout/tagout procedures before servicing electrical components. Installation should be performed by a qualified technician.

Extra Information

Find your comfort-ready size with confidence

Get a fast, learning-friendly estimate for tons and BTUs, then review it with a Pro to dial in the perfect fit for your home.

Quick sizing snapshot

Enter your home size and a few basics to see a quick HVAC365 sizing snapshot you can review with a Professional.

Home size (sq ft)

Enter at least 100 sq ft.

Use conditioned square footage only; skip garages and unfinished basements.

Climate

We’ll auto-detect for U.S. visitors.

Home type

Select your home type.

Shared walls and insulation levels change the load—pick what matches your structure.

System type

Choose a system type.

Match the system to your ductwork, fuel, or preferred heat source for best comfort.

This is a sizing estimate for general guidance only. Always confirm final size, duct design, and fuel type with a Professional before purchasing equipment or pulling permits.

Brand:

Supco

Weight:

2.00 LBS

Safety Information:

⚠ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Prop 65 Warning:

Yes

Part Type:

Tool

Voltage:

24VAC or Low voltage control circuit

Case Size:

7-1/2" x 4" x 3"

Jumper Length:

20"

Operating Temperature Range:

32°F to 150°F (0°C to 65°C)

Wires:

18AWG, 200 Degrees C. 3KV

Please Note: To validate the manufacturer's warranty, equipment must be installed by a qualified licensed professional in accordance with local codes and the manufacturer's installation requirements.