Name: ATD Tools Universal Large Bore A/C Valve Core Remover & Installer — ATD-3638
Brand: ATD Tools
SKU: ATD-3638
Price: 4.98 USD
Availability: InStock

ATD Tools Universal Large Bore A/C Valve Core Remover & Installer — ATD-3638

The ATD Tools ATD-3638 Universal Large Bore Valve Core Tool services standard R12/R134a and JRA/EATON large bore R134a valve cores in one tool. Essential for technicians working across multiple service port platforms. Ships nationwide.

The ATD-3638 is a universal valve core remover and installer for A/C technicians servicing both standard and large bore valve core configurations in one compact tool.

Compatible with R12/R134a standard valve cores and JRA/EATON large bore R134a valve cores — the two most common automotive A/C valve core types.

Compatible with standard R12/R134a and JRA/EATON large bore R134a valve cores on domestic and import passenger cars and light trucks. For live-system replacement without discharge, use ATD-3639, as well as agricultural equipment, heavy equipment, on/off-highway diesel vehicles.

ATD Tools builds single-tool solutions that reduce specialty item count — ATD-3638’s dual-standard compatibility supports multi-brand service.

Ships nationwide. Add the ATD-3638 to cover both valve core standards today.

Compare Similar Products

	ATD-3638 — This Product	ATD-3639 No Gas Loss R134a Valve Core Tool
Brand + MPN	ATD Tools ATD-3638	ATD Tools ATD-3639
Key Differentiator	— (this is the product you are viewing)	Built-in ball valve — replace cores without discharge
Best For	Standard R12/R134a + JRA/EATON large bore valve core removal (discharged system)	Live-system replacement without gas loss
Price	[your price]	View Price →

Which Should You Buy?

The ATD-3638 covers standard and large bore valve core removal but requires system discharge. For live-system replacement without refrigerant loss, choose the ATD-3639 No Gas Loss Valve Core Tool. Browse all A/C Service Tools at Sinclair Auto Parts.

Weight	0.13 lbs
Dimensions	5 × 3 × 2 in
Refrigerant Types	R-12, R-134a
Vehicle Makes	Universal — standard R12/R134a or JRA/EATON large bore R134a ports
Vehicle Types	Passenger cars, light trucks, agricultural equipment, heavy equipment, on/off-highway diesel vehicles
Model Year Range	1970–2021
System Type	A/C service port valve core service
Drive Size / Torque Range	N/A
Professional Trade(s)	Automotive A/C technicians, Agricultural equipment technicians, Heavy equipment technicians, Diesel technicians
Certifications / Standards	N/A
NOT Compatible With	Not for R-1234yf-specific service ports. System must be discharged — for live-system use ATD-3639.