Tecnoseal 397768 Johnson-Evinrude Gearcase Anode for 250–300 HP Outboards

ID 1404224

$ 23.72

1-2 weeks delivery time

Type:

Zinc
Magnesium
Aluminium

Item:

250 g
60 g
90 g

The Tecnoseal Johnson-Evinrude Gearcase Anode is a rectangular sacrificial anode designed for Johnson and Evinrude 250–300 HP outboard motors, corresponding to original OEM part number 397768. Available in zinc (00907BIS), aluminium (00907BISAL) and magnesium (00907BISMG), all three versions measure 25 × 40 × 40 mm and feature a 3/8" UNC threaded mounting hole. The zinc version weighs 0.25 kg (0.55 lbs), the aluminium version 0.09 kg (0.20 lbs) and the magnesium version 0.06 kg (0.13 lbs). The anode provides sacrificial corrosion protection for compatible outboard gearcase components.

Description
Ask a Question

Tecnoseal 397768 Johnson-Evinrude Gearcase Anode for 250–300 HP Outboards

The Tecnoseal Johnson-Evinrude Gearcase Anode is a sacrificial anode designed for corrosion protection of Johnson and Evinrude 250–300 HP outboard motor gearcases. It corresponds to original OEM part number 397768 and is available in zinc, aluminium and magnesium versions.

The anode features a rectangular block-shaped body with a central threaded mounting hole. All three versions measure 25 mm in length, 40 mm in width and 40 mm in height, with a 3/8" UNC mounting thread. The mounting dimensions remain identical across all material versions, while the weight varies according to the selected material. The zinc and aluminium versions also correspond to Osculati references 43.317.10 and 43.317.11, respectively.

Technical Specifications

Manufacturer	Tecnoseal
Product Type	Gearcase Anode
OEM Reference	Johnson-Evinrude 397768
Engine Compatibility	Johnson-Evinrude 250–300 HP Outboards
Available Materials	Zinc, Aluminium, Magnesium
Mounting Thread	3/8" UNC

Available Versions and Osculati References

Tecnoseal Part Number	Osculati Reference	Material	Weight
00907BIS	43.317.10	Zinc	0.25 kg (0.55 lbs)
00907BISAL	43.317.11	Aluminium	0.09 kg (0.20 lbs)
00907BISMG	Not specified	Magnesium	0.06 kg (0.13 lbs)

Dimensions

Dimension	Measurement
Length (l)	25 mm (0.98")
Width (a)	40 mm (1.57")
Height (h)	40 mm (1.57")
Mounting Thread (m)	3/8" UNC

Key Features

Rectangular block-type sacrificial anode for Johnson-Evinrude outboard gearcases.
Designed for Johnson and Evinrude 250–300 HP outboard motors.
Corresponds to original OEM part number 397768.
Available in zinc, aluminium and magnesium versions.
Osculati cross-references: 43.317.10 (zinc) and 43.317.11 (aluminium).
Identical dimensions across all three materials: 25 × 40 × 40 mm.
Central threaded mounting hole with 3/8" UNC thread.
Provides sacrificial corrosion protection for compatible gearcase components.