MG Duff Aluminium Shaft Anode — 1.25″ shaft
Two-piece clamp-on aluminium shaft anode for 1.25″ propeller shafts. Steel core bar controls wastage and stops the anode shaking loose as it erodes.
- Genuine MG Duff, cast and alloy-tested in the UK
- In stock in Thailand, dispatched in 1–2 working days
- 30-day returns on unused items — how returns work
- Not sure which pattern? LINE or WhatsApp us a photo of the old anode
Delivery & shipping
- Free local delivery — Trang · Krabi · Phuket
- Thailand-wide courier, typically 1–3 days
- Worldwide shipping by courier & sea freight
Fair price check
Our price is the manufacturer's home-market RRP — what this gear sells for where it's made. Branded marine equipment in Thailand typically retails 15–90% above that, when prices are published at all. Ours doesn't.
About this product
Shaft anodes clamp directly onto the propeller shaft to protect the shaft and propeller. Size by shaft diameter — this anode fits 1.25″ shafts. Fit to clean, bright metal (no paint or grease beneath), midway between the stern bearing and propeller, and re-check tightness after the first run. Most owners renew shaft anodes at every annual haul-out.
Specifications
| Material | Aluminium |
| Water type | Salt & brackish water |
| Alloy advantages | ~3× lighter than zinc equivalent, up to 20% longer life, cadmium-free |
| Shaft diameter | 1.25″ |
| Fixing | Two-piece clamp collar with core bar |
MG Duff has been the UK’s leading name in marine cathodic protection since 1956, casting anodes at its own Chichester foundry with every melt batch-tested for alloy composition.
Inspect anodes at least annually and replace once 50% consumed. Never paint or antifoul an anode — coatings stop it working. Correct electrical bonding is essential; ask us if you are unsure about your bonding circuit. FREE delivery to Trang, Krabi & Phuket on our weekly courier run; free standard delivery across Thailand on orders over $250 (parcels to 10 kg).
Zinc or aluminium, and how many?
Zinc for clean salt water; aluminium where the boat sits in brackish estuary marinas or moves between fresh and salt, because zinc can go passive there. The boat anode selector gives you a pattern and quantity for your boat in about a minute, and the guide zinc vs aluminium anodes in Thai waters explains why. Replace anodes when about half is gone, and replace them as a set.
Questions
Can I mix zinc and aluminium on one boat?
Keep one alloy across the bonded system so every anode wastes at the same rate; mixing is for separate, unbonded fittings only. Ask us if you are unsure.
Is it in stock?
Yes, in stock in Thailand and dispatched within 1–2 working days.
Returns and warranty
Unused anodes can be returned within 30 days; full details on the returns page. Genuine MG Duff, batch-tested at the foundry.
RELATEDYou may also need
Sleipner Control Panel Sun Cover (Proportional S-Link panels)
Side-Power Joystick Control Panel — Single, 12/24V
Sleipner Proportional S-Link Control Panel — Dual (hydraulic thrusters)
