🛥️ Protect your vessel like a pro — corrosion doesn’t stand a chance!
The Martyr CMR03AL Aluminum Rudder/Trim Tab Anode is a precision diecast aluminum anode designed for superior cathodic protection in brackish water environments. Featuring an Allen screw fastener and ISO 9001 certified manufacturing, it offers reliable, impurity-free corrosion defense for ocean-going vessels, ensuring durability and easy installation.
| Material | Aluminum, Alloy Steel, Iron, Zinc |
| Drive System | "" |
| Head Style | Trim |
| Exterior Finish | Zinc |
| Thread Size | "" |
| Point Style | Hex Point |
| Metal Type | Aluminum |
| Brand | Martyr |
| Color | silver |
| Head Type | Flat |
| Item Weight | 0.56 Pounds |
| Thread Coverage | "" |
| Fastener Type | Screw |
| Set Screw Thread Type | UNC or UNF |
| Thread Style | "" |
| Fastener Size | 5/16'' x 1-1/2'' |
| Size | 5/16'' x 1-1/2'' |
| Item Diameter | 3.75 Inches |
| Compatible groove diameter | 3.75 Inches |
| Maximum Shear Strength | 2,700 psi |
| Number of Pieces | 1 |
| UPC | 628309127855 |
| Global Trade Identification Number | 00628309127855 |
| Manufacturer | Martyr |
| Model | CMR03AL |
| Item Weight | 9 ounces |
| Item model number | CMR03AL |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | CMR03AL |
N**K
Good product. but made in China
Works as always good product.
K**C
Excellent!
Perfect fit! Good price!
G**N
Can be a bi&&h to remove old ones.
Had to drill into old ones to make an indentation so I could take a mallet and large screwdriver and hammer it to loosen them up enough to twist them out. I used lots of PB Blaster also.
J**L
Must have if your a boater!
Easy to use, long lasting. A must for any boat!
F**N
Perfect fit
Fit like it was supposed to
L**A
Perfect for my boat
Excelente
J**N
Best price
Great product great price fast delivery
J**N
Gone in 2 months alt water
Well last year i bought Zinc only for salt water lasted the season 6 months.. This guy said Aluminum will last longer. Heck no it doesn`t. Time to get the diving mask on what a waster of money. Get only ZINC for SALT end of story. and yes my boat is grounded properly and is on a Mooring not a dock.
Trustpilot
1 month ago
1 week ago
