12-Blade Multiwing Z Hub Set, P1 Center Boss, 5-Bolt

Multiwing 12-blade Z-series hub plate set (two halves) for a P1 taper center boss, standard duty: 75 mm center feature, 5 bolts on a 90 mm circle. The center boss is sold separately; photos that show one are for reference.

• 12 blade positions, Z-series
• 75 mm center feature
• 5 bolts on a 90 mm circle for the center boss
• Die-cast aluminum

Which blades fit

Takes Multiwing and Wing Fan Z-series blades, such as the 4Z, 5Z and 7Z, and the Wing Fan P4Z, P5Z and P6Z. Blades of the two brands fit the same hub, but they may not weigh the same, so use one brand per fan (or place them in opposite positions to keep the fan in balance).

About the P1 center boss

A P1 uniboss bolts into the center of the hub and clamps to your shaft with a P1 split taper bushing, so one hub fits a range of shaft sizes. AS/BS and AR/BR are the two boss styles; they set which side the bushing and its bolts face. Pick the style that gives you access on your machine. Not sure? Send a photo of your current fan. Bushings: P1 taper bushing, 3/4" to 1-1/2" bore.

Matching center boss

Multiwing AS/BS or AR/BR; Wing Fan AS/BS or AR/BR.

Building a fan

Add 12 fan blades (or fewer, with Multiwing blanking caps in the empty holes), a center boss, a P1 taper bushing, and our Z-series cutting service.

Not sure what you have?

Use our fan identification form. It walks you through the diameter, blade count, hub size and series in a few minutes, and you can attach photos. We will confirm the right part before you order.

Ordering and shipping

• Stock shown is what is on our shelf today.
• Order by 11 am Pacific and in-stock parts ship the same day. After 11 am we can still ship the same day in some cases. Call (360) 661-0875 for a rush.
• Shows sold out? Call or use the fan identification form and we will give you a lead time or suggest an equivalent.
• Saturday delivery is possible in some cases. Call to arrange it.
• Shipping overages are refunded.

About Amphibious Marine

We are a dealer for Multiwing and Wing Fan fans and blades, and we specialize in fast fan repairs: blade cutting, balancing, replacement hubs and complete fans. When we don't have the exact part on hand, our fan design software lets us design a permanent or temporary replacement fan for time-critical applications, and we can often ship the same day.