B3Z / B4Z Cartridge Mechanical Seal

Image: supplier reference. Yard photo coming soon. SP-MECHANICAL-SEAL · Water Pump Rebuild B3Z / B4Z Cartridge Mechanical Seal SKU: SP-MECHANICAL-SEAL · In stock · Phoenix yard $89.95 Per unit · USD · freight quoted at checkout Cartridge-style mechanical seal that fits the B3Z and B4Z pump family. Replaces the wear face during pump rebuild. Need help with fitment? Call us with the part you need to match — we'll verify spec before you order. − + Add to cart · $89.95 Or call (602) 217-0488 to confirm fitment before ordering. Specifications Category Water Pump Rebuild Condition New Ships from Phoenix, AZ On hand 27 units Buyer guide When to rebuild a B3Z-S water-truck pump (and how to tell) The five signs your pump needs attention, the rebuild-vs-replace decision, the full parts list, and the common mistakes that turn a 4-hour swap into multi-day downtime. Read the guide →