H&L Tooth Company History since 1931:
This H&L’s style R-503-W-18 ripping shank is a replacement for an Ateco part number 4-4257. Designed for Ateco ripper models PRS and PRF Mark III Parallel Ripper fitting Caterpillar D-7, Fiat Allis HD-16 and International TD-20. H&L ripper shank uses the H&L 18-Series tooth system. Ripper shank was engineered and introduced by the H&L Tooth Company in 1974. H&L products meet or exceeds all OEM standards.
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