KEY BRASS 10 X 10 X 143MM (4000 Drive key)

Key Brass 10 x 10 x 143mm 4000 Drive Key | Genuine | Muir AU

Key Brass 10 x 10 x 143mm 4000 Drive Key – Genuine Muir Replacement Part

The Muir Key Brass 10 x 10 x 143mm 4000 Drive Key is a genuine factory replacement component designed for Muir 4000 series windlasses. Manufactured from premium marine-grade brass, this drive key transmits torque between the shaft and gypsy with precision, ensuring smooth and reliable anchoring performance.

Built for Marine Reliability

Brass is the ideal material for marine drive keys thanks to its excellent corrosion resistance, dimensional stability, and self-lubricating properties. The precision-machined dimensions of 10mm x 10mm x 143mm guarantee a perfect fit, eliminating play and reducing wear on your windlass shaft and gypsy.

Key Features

• Genuine Muir replacement part for 4000 series windlasses
• Premium marine-grade brass construction
• Precision-machined dimensions: 10mm x 10mm x 143mm
• Excellent corrosion resistance in saltwater environments
• Direct fit — no modifications required
• Built to Muir's strict engineering standards

Why Choose Genuine Muir Parts?

Choosing the authentic Key Brass 10 x 10 x 143mm 4000 Drive Key ensures perfect compatibility, optimal performance, and long-term reliability. Aftermarket alternatives often use lower-grade alloys that wear faster and risk damaging your windlass. Trust genuine Muir parts engineered to work seamlessly with your 4000 series windlass.

Order your replacement drive key today from Muir Australia — trusted marine engineering since 1968.