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A/C Supplies & Consumables
A/C shop supplies and consumables for daily automotive refrigerant service — refrigerant oils, UV dye kits, o-ring assortments, flush solvents, vacuum pump oil, leak detection sprays, and system recharge supplies compatible with R-134a and R-1234yf service equipment and workflows. Alamo Equipment is an authorized dealer keeping production shops stocked for high-volume A/C service operations nationwide.
A/C Supplies & Consumables FAQs
A/C shop supplies and consumables for daily automotive refrigerant service — refrigerant oils, UV dye kits, o-ring assortments, flush solvents, vacuum pump oil, leak detection sprays, and system recharge supplies compatible with R-134a and R-1234yf service equipment and workflows.
A well-stocked A/C service bay maintains refrigerant oil (PAG and POE grades), UV dye kits and dye injectors, o-ring assortments (HNBR for R-1234yf systems), vacuum pump oil, flush solvents, manifold gauge valve cores, refrigerant identifier calibration gas, and nitrogen for system pressure testing.
PAG (polyalkylene glycol) oil is the standard refrigerant oil for R-134a automotive A/C systems. POE (polyolester) oil is used in R-1234yf systems and some commercial refrigeration applications. PAG oil is
hygroscopic and absorbs moisture rapidly when exposed to air. Using the wrong oil type can damage compressors and contaminate the refrigerant circuit.
R-1234yf A/C systems require HNBR (hydrogenated nitrile butadiene rubber) o-rings, not standard EPDM or neoprene. R-1234yf degrades standard o-ring materials, leading to premature seal failure and refrigerant leaks. Always verify o-ring material compatibility before installation.
Refrigerant oil is typically added during system service using a dye-and-oil injector or a measured oil charge through the service ports during the recharge cycle. The amount to add depends on what was removed during recovery, which component was replaced, and the manufacturer's oil charge specification for that vehicle. Adding too much oil reduces system cooling efficiency.
Most automotive A/C UV dye products are designed to be injected at 0.5 to 1.0 oz per system depending on system size. Higher concentrations do not improve leak detection and can leave residue that interferes with future service. Follow the dye manufacturer's recommended dose for vehicle A/C system size.
Most manufacturers recommend changing vacuum pump oil every 10 to 20 service cycles or whenever the oil appears discolored or milky. Contaminated oil reduces pumping efficiency and ultimate vacuum depth. Use only the viscosity grade specified by the vacuum pump manufacturer.
Yes. Alamo Equipment supports volume ordering for A/C consumables to meet the needs of high-throughput production shops. Contact us for volume pricing on frequently used items like refrigerant oil, UV dye kits, o-ring assortments, and vacuum pump oil — we can set up a recurring supply arrangement.