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Suzuki Propeller Hardware Kit - Fits Suzuki DF25/DF30/DT20/DT25c/DT30c (Replaces 57630-96300)

Sale price $14.20 Regular price $22.00
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Worry-free returns

You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Delivery and Shipping

Free standard shipping on all orders under 1 KG

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This is an aftermarket Suzuki Propeller Hardware Kit designed to fit Suzuki's 2-stroke and 4-stroke outboard motors in the 20–30 HP range. It is compatible with models including the DT20, DT25c, DT30c, DF25, and DF30 series, providing all the necessary components to securely mount your propeller.

This kit serves as a direct replacement for Suzuki part number 57630-96300 and Suzuki OEM part 57630-96300-0000.

  • Installation: Mounts on the outboard motor's propeller shaft assembly.
  • Connection Type: Features a 10-tooth spline interface.
  • Contents: Includes the essential spacer, cotter key, washer, and nut needed for a complete installation.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket suppliers.

Brand Part Number
Suzuki 57630-96300
Suzuki OEM 57630-96300-0000

Engine & Model Compatibility

Confirm your engine model and year in the table below to ensure correct fitment.

For Suzuki outboards, this kit fits the following models:

Brand Model Rated HP Stroke Years OEM Part No.
Suzuki DF25A 25 4-Stroke 2015 & Newer 57630-96300
Suzuki DF30A 30 4-Stroke 2015 & Newer 57630-96300
Suzuki DF25 25 4-Stroke 57630-96300
Suzuki DF30 30 4-Stroke 57630-96300
Suzuki DT20 20 2-Stroke 57630-96300
Suzuki DT25c 25 2-Stroke 57630-96300
Suzuki DT30c 30 2-Stroke 57630-96300

Technical Specs

Product Type
Propeller Hardware Kit
Installation
Outboard Motor Propeller Assembly
Connection
10 Tooth Spline
Dimensions
7.13" L x 6.0" W x 1.75" H
Weight
2 lbs (0.91 kg)
Fitting Type
Propeller Shaft Assembly
Other Technical Attributes
Fits 3.00" Gearcase with 10 Spline

What’s in the Box

  • 1 x Propeller Hardware Kit (replaces 57630-96300), including:
    • Spacer
    • Cotter Key
    • Washer
    • Nut

Installation Notes

  1. Ensure the engine is in neutral and shut off. For safety, disconnect the battery and remove the ignition key.
  2. Remove the old cotter pin, propeller nut, washer, propeller, and thrust washer from the propeller shaft.
  3. Thoroughly clean and inspect the propeller shaft splines for any signs of wear or damage.
  4. Apply a liberal coat of marine-grade grease to the propeller shaft splines.
  5. Slide the new thrust washer onto the shaft.
  6. Align the propeller with the shaft splines and slide it fully onto the shaft until it seats against the thrust washer.
  7. Install the outer spacer (washer), followed by the propeller nut.
  8. Tighten the propeller nut to the manufacturer's specified torque. Do not overtighten.
  9. Align the grooves in the nut with the hole in the shaft and insert the new cotter pin.
  10. Bend the ends of the cotter pin securely to lock the nut in place.

Troubleshooting & FAQ

How do I know if this hardware kit fits my Suzuki engine?

This kit is specifically for Suzuki 20-30 HP models like the DF25/DF30 and DT20/DT25c/DT30c. The most reliable method is to check your engine model and year against the compatibility table provided. Cross-referencing the OEM part number (57630-96300) with your service manual is also recommended.

What are the signs my old propeller hardware is failing?

Common signs include visible corrosion or damage to the nut, washer, or spacer; excessive vibration while the engine is running in gear; a loose-feeling or rattling propeller; or difficulty removing the old hardware. The cotter pin should always be replaced and never reused.

Can I reuse my old cotter pin?

No. For safety, you must always use a new cotter pin when installing a propeller. Reusing an old pin significantly increases the risk of it failing, which can lead to the loss of the propeller nut and the propeller itself during operation.

My engine model isn't listed, but the part number 57630-96300 matches. Will it fit?

If your engine's service manual specifies part number 57630-96300, this kit should be compatible. We recommend checking our compatibility list first, but an OEM part number match is a strong indicator of fitment. Always verify the spline count (10-tooth) and gearcase size (3.00") as a final check.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.

Shipping speed & cost

We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.

Warranty & returns

Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.

Safety & Important Info

  • Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
  • This is an aftermarket replacement, not an OEM component.
  • Professional installation is recommended for safety and performance.

About Sea Sierra

  • Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
  • Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
  • Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.

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