Mercury – Quicksilver 821630T1 Aluminum Drive Shaft Housing Anode | MerCruiser Bravo I, II, III, X, XR & XZ Drives | 821630T1

Overview

Salt, current, and moisture can quietly eat away at your drive’s housing if left unprotected. The Mercury 821630T1 Aluminum Drive Shaft Housing Anode gives your MerCruiser Bravo sterndrive the corrosion defense it needs to stay in great shape. Designed for Bravo I, II, III, X, XR, and XZ drives, this OEM anode shields the drive and engine from galvanic corrosion in both saltwater and freshwater.

Made from high-quality aluminum with a large surface area for better coverage, it offers long-lasting protection and installs quickly with your existing hardware. It’s simple upkeep that pays off big in reliability and longevity.

Key Features

• Purpose: Protects the drive shaft housing from galvanic corrosion in salt or freshwater.
• Fitment: For MerCruiser Bravo I, II, III, X, XR, and XZ drives.
• Construction: Cast aluminum anode designed for maximum corrosion-fighting efficiency.
• Design Advantage: Large surface area for stronger, more even protection.
• Ease of Use: Installs easily with common hand tools; uses existing mounting hardware.

Engine & Boat Compatibility

• Fits MerCruiser Bravo I, II, III, X, XR, and XZ drives
• Common on cruisers, sport boats, and fishing vessels powered by MerCruiser sterndrives

Performance & Practical Benefits

The 821630T1 anode works as a sacrificial barrier, absorbing corrosive activity that would otherwise attack your drive housing and nearby components. Its aluminum alloy performs well in both fresh and saltwater, providing a balance of durability and efficient protection.

It’s easy to inspect, and replacing it takes just a few minutes. Regular maintenance with this OEM anode helps prevent pitting and metal loss, keeping your Bravo drive looking good and running smoothly.

Why Buy OEM

Mercury’s OEM anodes are cast with the precise aluminum blend your drive was designed for, ensuring reliable and even corrosion protection. Aftermarket versions often use mixed or impure metals that wear unevenly and can leave some areas unprotected.

A genuine Quicksilver anode fits perfectly and provides proven protection, keeping your sterndrive safe season after season.

FAQ

Q1: What drives fit the Quicksilver 821630T1 anode?
A: It’s made for MerCruiser Bravo I, II, III, X, XR, and XZ sterndrives.

Q2: Can it be used in saltwater?
A: Yes. It’s designed for corrosion protection in both salt and freshwater environments.

Q3: Is installation difficult?
A: Not at all. It’s a direct replacement that uses your existing mounting hardware.

Q4: How often should I replace it?
A: Check it several times per season and replace it once about half the metal has worn away.

Q5: Why OEM instead of aftermarket?
A: OEM anodes have the correct metal mix and fit, giving balanced, long-lasting protection that aftermarket parts can’t match.