Air End Repair Kit, Compatible with Grainger Part Number 22A598, 22A599, 34TJ42, 34TJ43, 34TJ45, 34TJ46, 34TJ47, 3HJW4A, 3HJW5, 3HJW5A, 3HJW6, 3HJW6A, 3HJX1, 3HJX1A, 3HJX2, 3HJX2A, 3HYW3, 3HYW3A, 6PY45, 6PY45B, 6PY46, 6PY46B, 6PY56, 6PY56B, 6PY57, 6PY57B, YHJW4.