Brand	Mastercool
SKU	TNX-C-343850235deaefee0e518e702dcf9e48
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

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.

Delivery options, timing and costs are confirmed at checkout. Read our shipping policy and returns policy for the terms that apply to this item.

Mastercool · SKU TNX-C-343850235deaefee0e518e702dcf9e48

Mastercool 58490 R12/R134a Master Kit

Name: Mastercool 58490 R12/R134a Master Kit
Brand: Mastercool
SKU: TNX-C-343850235deaefee0e518e702dcf9e48
Price: 85.50 USD
Availability: InStock

$85.50

In stock, ready to ship

Secure USD checkout

Free U.S. shipping from $35 · 30-day returns · No restocking fees

Estimated delivery window

United States: 3–5 business days

Includes 1–2 business days processing and 2–3 in transit.

$5.95 below $35; free from $35 before discounts. U.S. only. Weekends and U.S. holidays excluded.

Full factory warrantyOriginal manufacturer terms
U.S. deliveryNo size or weight surcharges
30-day returnsNo restocking fees
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Brand new · Factory sealed

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

Warranty details

$5.95 U.S. shipping below $35; free from $35 before discounts. Your final total is shown before payment.

United States delivery

$5.95 shipping below $35, free from $35 before discounts. Estimated 3–5 business days including processing. Tracking is provided after dispatch.

30-day return window

Eligible items must be unused, in original condition and packaging. You pay change-of-mind return postage; we pay for damaged, defective or wrong items. No restocking fees. See the returns policy for exclusions.