Mastercool Semi Truck A/C Parts & Tools

Universal 1/4" (7/16"-20) x 13 mm Low Side Straight Retrofit Adapter (10 pieces) (82274-10) by Mastercool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and...

Universal 1/4" (7/16"-20) x 16 mm High Side Straight Adapter with Valve Core (5 pieces) (82332-5) by Mastercool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology...

Universal 1/4" Adapter by Mastercool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by Mastercool will last a...

Universal 1/4" FFL x 1/2" ACME-M Straight Adapter by Mastercool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by...

Universal 1/4" FFL x 1/4" MFL In-Line Oil Injector by Mastercool®. Excellent method for adding refrigerant oil or large amounts of UV leak detection dye to the A/C system. Add oil by allowing vacuum to pull it in after the evacuation...

Universal 1/4" FFL x 1/4" MFL Standard A/C Oil Injector by Mastercool®. Excellent method for adding refrigerant oil or large amounts of UV leak detection dye to the A/C system. Add oil by allowing vacuum to pull it in after the...

Universal 1/4" FFL x 13 mm 90° Automatic Shut-Off Valve (90333-UV) by Mastercool®. Mastercool manufactures a complete line of shut-off valves for containment of refrigerant. EPA requires shut-off valves within 12 inches of the charging...

Universal 1/4" FL x 1/2" ACME R-134a Coupler Adapter Kit by Mastercool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product...

Universal 1/4" FL-M x 1/4" FL-F 90° Automatic Shut-Off Valve (90333-R) by Mastercool®. Mastercool manufactures a complete line of shut-off valves for containment of refrigerant. EPA requires shut-off valves within 12 inches of the...

Universal 1/4" FL-M x 1/4" FL-M x 1/4" FL-F T-Adapter by Mastercool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by...

Universal 1/4" FL-M x 13 mm R-134a Low Side Safety Lock Manual Coupler (82934-SL-E) by Mastercool®. Mastercool's new safety-lock manual couplers are designed for use on all R134a systems. This unique design allows the technician to work...

Universal 1/4" FL-M x 16 mm R-134a Economy High Side Manual Coupler by Mastercool®. Specially designed to work in the tightest quarters. Attaches to your existing R12 hoses and snaps easily to A/C service ports. This product is made of...

Universal 1/4" FL-M x 16 mm R-134a Economy Low Side Manual Coupler by Mastercool®. Specially designed to work in the tightest quarters. Attaches to your existing R12 hoses and snaps easily to A/C service ports. This product is made of...

Universal 1/4" FL-M x 16 mm R-134a High Side Safety Lock Manual Coupler (82834-SL-E) by Mastercool®. Mastercool's new safety-lock manual couplers are designed for use on all R134a systems. This unique design allows the technician to...

Universal 1/4" FL-M x 16 mm Red R-134a, R-12 High Side Conversion Manual Coupler by Mastercool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...

Universal 1/4" Gaskets (10 pieces) (42010-10) by Mastercool®. For Charging Hoses and Adapters. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers...

Universal 1/4" MFL x 1/4" FFL 45° Adapter Fitting by Mastercool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by...

Universal 1/4" MFL x 1/4" FFL Flex Adapter Fitting by Mastercool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by...

Universal 1/4" MFL x 1/4" FFL Swivel Adapter by Mastercool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by...

1/4" MFL x 1/8" FFL High Side Flex Adapter Fitting by Mastercool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by...

Universal 1/4" MFL x 3/16" FFL 45° High Side Adapter Fitting by Mastercool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this...

1/4" MFL x 3/16" FFL High Side Flex Adapter Fitting by Mastercool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by...

Universal 1/4" MFL x 3/16" FFL High Side Straight Adapter Fitting by Mastercool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this...

Universal 1/4" MFL x 3/16" FFL High Side Straight Swivel Adapter Fitting by Mastercool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in...

Universal 1/4" MFL x 3/16" FFL Straight Fitting Adapter by Mastercool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product...

Universal 1/4" Service Hose Depressors (10 pieces) by Mastercool®. For Charging Hoses and Adapters. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...

Universal 1/4" to 5/16" SAE (1/2-20 UNF) Straight Adapter Fitting by Mastercool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this...

Universal 1/4" x 1/4" Swivel Ball Valve by Mastercool®. Mastercool manufactures a complete line of shut-off valves for containment of refrigerant. EPA requires shut-off valves within 12 inches of the charging hose ends to prevent...

100 lb Refrigerant Recovery Cylinder by Mastercool®. Volume: 100 lb. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your...

Universal 114" Standard A/C Charging Hose Set (45336-114) by Mastercool®. Working Pressure 600 PSI, Burst 3000 PSI. Mastercool uses only (GRADE 5 HOSE) with a selection of Standard and Nylon Barrier for high pressure applications....