Brand	Mastercool
SKU	TNX-C-be28f8673a0aca4457dabd0211ca00b4
Manufacturer SKU	MAS 58490

Overview

Mastercool’s valve core remover/installer has a built-in ball valve to retain charge and allow access to A/C system. Excellent for replacing valve cores without discharging the system, speeding recovery and recharging large systems. Its heavy-duty design for R134a and R12 systems allows the user to change valve cores while under pressure without any refrigerant loss.

Designed for use of servicing valve cores in R134a and R12 systems

Universal valve core remover/installer for standard, JRA, Eaton and GM large bore valve cores

Access and change valve cores while the A/C system is still filled with refrigerant

Stainless steel ball valve design and patented thread remover lets the user block off the system while changing the valves cores, allowing for no refrigerant loss

Includes

Valve assembly

R134a high side 16mm connector

R134a low side 13mm connector

1⁄4″ FL swivel connector

standard valve core remover/installer assembly

GM large bore valve core remover/installer assembly

JRA R134a valve core remover/installer assembly

Eaton R134a low side valve core remover/installer assembly

Eaton R134a high side valve core remover/installer assembly

adapter 1/4″-M x 3/16″-F high side GM/Ford

adapter 1/4″-M x 1/8″-F high side Ford.

WARNING: Cancer & Reproductive harm www.P65Warnings.ca.gov

Free shipping to the United States (6–10 business days) and Canada (9–12 business days), including handling; order cutoff 2:00 PM Central, Monday–Friday, excluding weekends and public holidays. 90-day returns with free prepaid return shipping and zero restocking fees for unused, unassembled and uninstalled items. See shipping and returns.

Mastercool · SKU TNX-C-be28f8673a0aca4457dabd0211ca00b4

Mastercool 58490 R12/R134a Master Kit

Name: Mastercool 58490 R12/R134a Master Kit
Brand: Mastercool
SKU: TNX-C-be28f8673a0aca4457dabd0211ca00b4
Price: 85.50 USD
Availability: InStock

$85.50 PRICE DROP

In stock, ready to ship

Estimated delivery window

US: 6–10 business days · Canada: 9–12 business days

Includes handling. Order cutoff: 2:00 PM Central, Monday–Friday.

Free US & Canada delivery. Estimates exclude weekends and public holidays.

Full Factory WarrantyOriginal Manufacturer Terms
Liftgate for Freight ItemsAppointment Included
90-Day Free ReturnsZero Restocking Fees
Secure CheckoutSecure encrypted checkout

Brand new · Factory sealed

Brand new in original manufacturer packaging. Factory warranty included under original manufacturer terms.

Warranty details

Free US & Canada Delivery

For freight shipments, the carrier contacts you before delivery to arrange an appointment. Liftgate service lowers your shipment to ground level at the curb. Moving it from the curb and assembly are your responsibility.

90-Day Return Window

Eligible for items not used, assembled or installed. Free prepaid return shipping with zero restocking fee.

Brand New & Factory Sealed

Ships brand new in original manufacturer packaging, covered by the factory manufacturer warranty. Check the product details for included components.

View complete delivery, setup & freight details →

From Houston to your home

Plan for delivery day.

Free US delivery in 6–10 business days. Canada: 9–12 business days.
Both include handling.

01

Plan for delivery.

Allow an estimated 6–10 business days to the US or 9–12 to Canada, including handling. Prepare a clear unloading area and a safe route to where this item will be used.
02

Check the shipment.

Inspect Mastercool 58490 R12/R134a Master Kit and its packaging for visible damage. Compare the model reference and components with the product listing and manufacturer's parts list before setup.
03

Follow the setup instructions.

Read the manufacturer's manual before unpacking or assembling the item. Use the specified hardware, guards and safety equipment.
04

Check before first use.

Complete the manufacturer's safety checks before using the item. Contact support about damage, missing parts or an unclear instruction.