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Learn how to replace parts washer pumps and understand the compatibility issues with modern replacement pumps in this 13-minute tutorial. Discover why contemporary PWP40 and PWP20 replacement pumps for small consumer-grade parts washers are no longer petroleum-based solvent safe, causing them to dissolve or melt when exposed to kerosene, Varsol, or diesel-based degreasers. Explore the differences between older original 3.5-gallon parts washer pumps that could handle petroleum solvents and today's water-based degreaser-only alternatives. Watch a demonstration of what happens when modern replacement pumps are exposed to petroleum solvent solutions, and get a practical, cost-effective upgrade solution using petroleum solvent-safe alternatives like 38mm 12VDC submersible mini diesel transfer pumps or universal in-tank fuel pumps for continuous submersion applications. Follow along as the installation process is demonstrated, including proper fitting techniques and power supply requirements using 12VDC 2-5 amp wall transformers.
