PRODUCT DETAILS
Marine-grade aftermarket gearbox sacrificial anode kit for selected Johnson and Evinrude 20 HP, 25 HP, 30 HP and 35 HP 2-stroke outboard engines.
Replaces Johnson Evinrude part number 5007582, which supersedes the earlier 434029 / 0434029.
Designed to help protect the outboard gearbox and lower unit against galvanic corrosion.
Supplied as a pair of Zinc anode plates.
Fitment
Suitable for selected Johnson and Evinrude 2-stroke outboards:
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20 HP: Selected models from 1991 onwards
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25 HP: Selected models from 1991 onwards
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30 HP: Selected models from 1991 onwards
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35 HP: Selected models with the matching gearbox configuration
Additional Applications
Also used on selected later 15 HP Evinrude models, including certain E15-series engines.
Important: Fitment depends on the exact engine model, year, serial number and gearbox design. Not every engine within these HP ranges uses this anode kit.
Replaces Johnson / Evinrude Part Numbers
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5007582
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434029
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0434029
Additional aftermarket cross-reference:
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778314 / 0778314
OEM part numbers are used for identification purposes only.
Product Details
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Gearbox / lower unit sacrificial anode kit
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Zinc construction
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Two-piece anode plate design
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Suitable for selected Johnson / Evinrude 2-stroke outboards
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Helps protect against galvanic corrosion
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Marine-grade aftermarket replacement
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Price is for ONE complete kit
Package Includes
2 × Zinc Gearbox Anode Plates
Mounting hardware is not included unless otherwise specified.
Important Compatibility Information
This kit does not fit every Johnson or Evinrude 20–35 HP outboard.
Before ordering, please check:
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Exact engine model and year
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Engine model / serial number
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Original anode part number
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Existing anode shape and mounting dimensions
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Gearbox configuration
If the parts look the same as yours, this does not always mean they are correct for your outboard.
If unsure, please contact SSI Marine before purchasing.
Why Buy From SSI Marine?
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Workshop-tested aftermarket & OEM-spec parts
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UK stock
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Same-day dispatch before 1 PM Monday–Friday
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Royal Mail Tracked 24
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Collection available from Leigh, Greater Manchester
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Technical support available
Buyer Responsibility
Please confirm compatibility with your exact engine model, year, serial number and gearbox before purchase.
SHIPPING & DELIVERY
Delivery & Returns Policy
Delivery
Standard Delivery
- £6: Royal Mail Tracked 24 Service
- £3.99: Large Letter - Royal Mail 1st Class Post (Untracked)
We offer free delivery on all orders over £150 (excludes outboard engines).
Orders placed before 1:00 PM (Monday-Friday) are usually dispatched the same working day.
Most parcels are delivered within 24 hours, but please allow extra time for courier delays that may occur outside our control.
For outboard engines, please contact us for a delivery quote.
Important: Please ensure your shipping address is correct before completing checkout. SSI Marine is not responsible for parcels sent to an incorrect address provided by the buyer.
Tracking Your Order
Once your order has been dispatched, you will receive a tracking number via email (after 5 PM on the day of dispatch).
Tracking is available only for parcels sent via Royal Mail Tracked 24.
Large Letter orders are sent via Royal Mail 1st Class Post (untracked).
Returns
We accept returns of unused and undamaged items within 30 days of purchase.
Returned items must be in sellable condition and include the original packaging.
Please do not tape, label, or write directly on the product's original box.
Important: Do not return items in their original product boxes only, they must be placed inside a protective outer box or bag. Parcels returned like the example below will be subject to a 20% restocking fee.
Return shipping costs are the customer's responsibility.
Please include your order details and reason for return inside the parcel.
Refunds
Refunds are issued for the item purchase price only (shipping costs are non-refundable).
All refunds will be made using the same payment method as your original order.
Items returned in poor condition or without proper packaging may incur a 20% restocking fee.
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