MerCruiser Bravo 3 Zinc Prop Nut Anode CMT-865182CZ
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
The CMT-865182CZ is a zinc prop nut anode designed specifically for MerCruiser Bravo 3 sterndrives (2004 and newer), providing dual-function propeller retention and sacrificial cathodic protection for the drive shaft, propeller hub, and adjacent underwater components in saltwater environments.
Key Features
- Zinc alloy — proven saltwater corrosion protection
- Dual function: secures propeller and provides sacrificial anode protection
- Designed specifically for Bravo 3 (2004 and newer)
- OEM-style direct replacement — exact fit and thread spec
- Protects prop shaft, hub, and drive components from galvanic corrosion
- Easy replacement at propeller service interval
Engine Compatibility
Designed for:
- MerCruiser Bravo 3 sterndrives — 2004 and newer
⚠️ Not compatible with Bravo 1, Bravo 2, or pre-2004 Bravo 3 drives — verify by drive serial number.
Serial Number Fitment Notice
- Confirm drive model: Bravo 3, 2004+
- Verify OEM reference: 865182C
- Check thread specification matches existing prop nut
When This Part Needs Replacement
- Anode is 50% or more consumed
- Visible corrosion on prop shaft or hub
- At every propeller removal or annual service
- Whenever propeller is serviced or replaced
Installation Notes
- Install per MerCruiser propeller installation procedure
- Torque to MerCruiser specification
- Ensure bare metal contact between nut and shaft
- Do not paint or coat the anode surface
- Always replace prop nut anode when removing propeller
Alternate / Cross-Reference Part Numbers
- Camp Company: CMT-865182CZ
- Martyr: CM865182CZ
- Mercury / MerCruiser OEM: 865182C
- Aluminum equivalent: CMT-865182CA
Parts Desk Insight
The prop nut anode on a Bravo 3 is one of the most frequently overlooked anodes — it’s right at the propeller and takes a beating in saltwater. Replace it every time the prop comes off. At this price point, there’s no reason to reinstall a depleted one.
Shipping
Ships in 1–3 business days for fast Canada wide shipping. ⚓
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.