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Tecnoseal 604-45373-00 Yamaha Hydra Drive Sterndrive Zinc Anode Plate
The Tecnoseal 01158 is a zinc sacrificial anode plate designed for Yamaha Hydra Drive sterndrive systems, including SX, DE-DHD, DE-DHT and DE-DHT-C models. Corresponding to Yamaha OEM part number 604-45373-00, this replacement anode helps protect submerged metallic sterndrive components against galvanic corrosion.
The anode features a curved metal plate with a concave upper profile and two recessed mounting holes positioned along its lower section. Its distinctive shape and two-point fastening arrangement correspond to the design illustrated in the Tecnoseal catalogue, allowing it to be identified against the original Yamaha component.
The zinc material acts as a sacrificial corrosion protection element. During service, the anode corrodes preferentially, helping reduce galvanic corrosion of surrounding protected metallic drive components. The anode should be inspected regularly and replaced according to the sterndrive manufacturer's maintenance requirements.
According to the Tecnoseal catalogue, the plate measures 120 mm (4.72 in) in overall length (l), 70 mm (2.76 in) in width (a) and 11 mm (0.43 in) in height (h). The mounting-hole spacing dimension (i) is 50 mm (1.97 in), while the hole diameter (Ø) is 8.5 mm (0.33 in). The zinc anode weighs 0.33 kg (0.73 lbs).
Technical Specifications
Manufacturer Tecnoseal Product Code 01158 Product Type Sterndrive Anode Plate Material Zinc Compatible Manufacturer Yamaha Compatible Drive Yamaha Hydra Drive Compatible Models SX, DE-DHD, DE-DHT, DE-DHT-C Yamaha OEM Reference 604-45373-00 Weight 0.33 kg (0.73 lbs) EAN 8033837069393 Construction Curved plate with two recessed mounting holes
Dimensions and Mounting Specifications
Overall Length (l) 120 mm (4.72 in) Width (a) 70 mm (2.76 in) Height (h) 11 mm (0.43 in) Mounting-Hole Spacing (i) 50 mm (1.97 in) Mounting-Hole Diameter (Ø) 8.5 mm (0.33 in)
Compatibility and OEM Cross-References
- Compatible Manufacturer: Yamaha
- Drive System: Yamaha Hydra Drive
- Compatible Models: SX, DE-DHD, DE-DHT, DE-DHT-C
- Installation Area: Sterndrive assembly
- Yamaha OEM Part Number: 604-45373-00
- Tecnoseal Reference: 01158
Key Features
- Designed for Yamaha Hydra Drive sterndrive systems.
- Compatible with the listed SX, DE-DHD, DE-DHT and DE-DHT-C applications.
- Corresponds to Yamaha OEM part number 604-45373-00.
- Zinc sacrificial anode for corrosion protection.
- Curved plate with a concave upper profile.
- Two recessed mounting holes.
- Overall length: 120 mm.
- Width: 70 mm.
- Height: 11 mm.
- Mounting-hole spacing dimension: 50 mm.
- Mounting-hole diameter: 8.5 mm.
- Weight: 0.33 kg.
Compatibility Note: Before ordering, verify the Yamaha Hydra Drive model, OEM part number 604-45373-00 and original anode dimensions. Compare the curved plate profile and two mounting holes with the existing component to confirm the correct replacement.
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