Zinc Propeller Nut C Replacement CMT-PNZC

The Martyr CMT-PNZC is a zinc replacement propeller nut anode in the C-style pattern, designed to help protect propeller shafts and propellers from galvanic corrosion in saltwater service. Current product references identify it as the replacement anode only, rather than a complete assembled prop nut kit.

Key Features

Zinc sacrificial propeller nut replacement anode.
Martyr part number: CMT-PNZC / CMPNZC.
C-style replacement anode pattern.
Designed for saltwater use.
Current size references for this pattern are about 2.64 in. length and 2 in. outside diameter.

Application / Compatibility

Suitable where a C-style replacement prop nut zinc is required. Current pattern references commonly associate the C replacement with 1 in. and 1-1/8 in. shaft applications, so the safest match points are the existing prop nut style, shaft size, and replacement-anode pattern rather than appearance alone.

Fitment Notice

Fitment should be confirmed by the installed prop nut assembly and replacement-anode pattern before ordering. Matching by CMT-PNZC / CMPNZC / PN-C-ZN remains the safest method.

When This Part Needs Replacement

Replace the anode when it is heavily wasted, pitted, cracked, loose, or significantly reduced in size. As a zinc anode, this version is intended for saltwater use and is not recommended for freshwater service.

Installation Notes

Current replacement prop nut references state that fasteners are included with replacement prop nuts, and the nylon patch is intended for one initial application only. Install on a clean contact surface and do not paint the anode.

Alternate / Superseded Part Numbers when applicable

CMT-PNZC
CMPNZC
PN-C-ZN
2714
PROPNUT-C
PROPNUTC

Parts Desk Insight

The important detail on this part is that it is the replacement anode for the C-style prop nut system, not the full complete assembly. Matching the installed prop nut style first is the best way to avoid ordering the wrong replacement zinc.

Shipping

Shipping: Ships same or next day for fast Canada wide shipping.