Hein-Werner | 890-021-666 | OEM Pump Piston Assembly for HW93642, HW93652 Service Jack
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The Hein-Werner 890-021-666 Pump Piston Assembly is an OEM-compatible replacement part designed for 2/3-ton service jacks. This assembly is engineered to provide a seamless fit with major brands, such as Walker, Lincoln, Snap-On, and Gray. With a 3-ton load capacity, it offers exceptional durability and reliability, ensuring your jack performs at its best. Ideal for both professionals and DIY users, this pump piston assembly is easy to install and enhances the performance of your service jack, making it an excellent upgrade for long-lasting results. It replaces older part numbers, including 234948, 233107, 227045, and YA700B11.
Features
Features | |
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Compatibility | OEM-compatible replacement for 2/3-ton service jacks |
Brand Fit | Seamless fit with major brands like Walker, Lincoln, Snap-On, and Gray |
Load Capacity | Durable construction with a 3-ton load capacity |
Performance Enhancement | Enhances jack performance for reliable lifting |
Installation | Easy to install, suitable for professionals and DIY enthusiasts |
Replaces Part Numbers | Replaces older part numbers: 234948, 233107, 227045, YA700B11 |
Specifications
Specification | 890-021-666 |
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Load Capacity | 3 tons |
Compatibility | Walker, Lincoln, Snap-On, Gray |
Replacement Part Numbers | 234948, 233107, 227045, YA700B11 |
Application | 2/3-ton service jacks |
About the Brand

Hein-Werner is a leading American brand in hydraulic lifting equipment, known for its durability and precision engineering. Manufactured in the USA and trusted by professionals, Hein-Werner products deliver reliable performance with a two-year warranty. Equip your workspace with Hein-Werner—where quality meets reliability.