Name: Yamaha Outboard Propeller Hardware Kit – Castle Nut, Spacer, Washer & Cotter Pin for 2‑Stroke & 4‑Stroke Engines
Brand: HomeDIYer
SKU: HKTBCLA260001
Price: 31.8 USD
Availability: InStock

📦 Yamaha Outboard Propeller Hardware Kit – Castle Nut, Spacer, Washer & Cotter Pin for 2‑Stroke & 4‑Stroke Engines

Keep a complete propeller mounting hardware kit on hand and avoid being sidelined by a missing cotter pin or a stripped castle nut. This selection of Yamaha‑compatible propeller hardware covers the essential fasteners that secure your prop to the prop shaft: stainless steel and brass castle nuts, flat washers, thrust spacers, and stainless split pins. Ideal for routine propeller changes, lower unit servicing, or emergency repairs at the ramp, each kit is organized by engine horsepower and stroke type so you can grab exactly the parts that match your outboard. Compatible with Chinese‑market Yamaha outboards and other domestic engines using the same prop shaft dimensions, these kits deliver a factory‑spec fit without the dealer price tag.

⚠️ Always replace the cotter pin: Reusing a bent or corroded split pin can lead to prop nut loosening and propeller loss. A fresh pin is included in every kit.

✨ Key Features of Yamaha Propeller Hardware Kits

Yamaha‑Compatible Fit: Designed to match the prop shaft thread and diameter of popular Yamaha 2‑stroke and 4‑stroke models sold in China.
Complete Kits Available: Full sets include thrust spacer, washer, castle nut, and cotter pin—everything needed for a prop swap in one package.
Individual Nut & Pin Options: For quick repairs, select kits contain just the castle nut and cotter pin when the spacer and washer are still in good condition.
Corrosion‑Resistant Materials: Brass and stainless steel hardware resist saltwater seizure, making prop removal easier during routine maintenance.
Wide Engine Coverage: Variants available for 2‑stroke and 4‑stroke engines from 2.5 HP portables up to 85 HP mid‑range outboards.
Budget‑Friendly Domestic Alternative: Quality hardware that matches OEM dimensions at a fraction of the cost—perfect for older engines or spare kits.

📏 Specifications – Propeller Hardware Kit

Compatibility	Yamaha Chinese-market outboards & compatible domestic engines
Materials	Stainless Steel (cotter pin) + Brass (castle nut) + Steel (spacer/washer)
Kit Types	Full set (spacer + washer + nut + pin) or Basic set (nut + pin only)
Engine Stroke	2‑Stroke & 4‑Stroke (select the correct variant for your engine)
Horsepower Range	2.5 HP to 85 HP
Application	Propeller installation, prop shaft servicing, and lower unit maintenance
Package Includes	As selected: full kit or nut + pin combination

🔍 Yamaha Variant Compatibility Guide

SKU	Variant Description	Kit Type	Price
YM-PROP-4T-40-60-NUT	4‑Stroke 40–60HP Nut + Cotter Pin	Basic	¥30.51
YM-PROP-T9.8-12-FULL	T9.8–12HP Propeller Spacer Full Set	Full	¥40.72
YM-PROP-4T-15-30-NUT	4‑Stroke 15/18/20/25/30HP Nut + Cotter Pin	Basic	¥18.37
YM-PROP-2T-60-85-FULL	2‑Stroke 60/75/85HP Propeller Spacer Full Set	Full	¥130.62
YM-PROP-2T-15-20-NUT	2‑Stroke 15/18/20HP Nut + Cotter Pin	Basic	¥18.37
YM-PROP-4T-40-60-FULL	4‑Stroke 40–60HP Universal Full Set	Full	¥81.54
YM-PROP-4T-2.5-8-NUT	4‑Stroke 2.5–8HP Nut + Cotter Pin	Basic	¥18.37
YM-PROP-2T4T-4-8-FULL	2‑Stroke/4‑Stroke 4/6/8HP Universal Full Set	Full	¥30.51
YM-PROP-2T-15-20-FULL	2‑Stroke 15/18/20HP Universal Full Set	Full	¥30.51
YM-PROP-2T-60-85-NUT	2‑Stroke 60–85HP Nut + Cotter Pin	Basic	¥30.51
YM-PROP-2T-30-NUT	2‑Stroke 30HP Nut + Cotter Pin	Basic	¥30.51
YM-PROP-2T-40-NUT	2‑Stroke 40HP Nut + Cotter Pin	Basic	¥30.51
YM-PROP-2T-30-FULL	2‑Stroke 30HP Universal Full Set	Full	¥91.74
YM-PROP-2T-40-FULL	2‑Stroke 40HP Universal Full Set	Full	¥81.54
YM-PROP-4T-15-30-FULL	4‑Stroke 15–30HP Universal Full Set	Full	¥30.51

❓ Frequently Asked Questions – Propeller Hardware Kits

Q: How do I know if I need the full set or just the nut and pin?

A: If your thrust spacer and washer are still in good shape with no deep grooves or corrosion, the basic nut + pin kit is sufficient. If you're replacing the entire propeller assembly or your spacer shows wear, choose the full kit to replace everything at once.

Q: Can I reuse the old cotter pin after removing the propeller?

A: Always replace the cotter pin with a new one. Old pins can develop hidden stress cracks and may snap or fall out, allowing the castle nut to back off and the propeller to come loose. A fresh stainless pin is included in every kit.

Q: Do these kits fit non‑Yamaha Chinese outboard engines?

A: Many domestic Chinese outboards share similar prop shaft dimensions with Yamaha designs. Compare your existing hardware size and thread pattern to the photos. The 4‑stroke 40–60HP universal kit and small HP kits are most commonly cross‑compatible.

Q: How tight should I torque the castle nut?

A: Tighten the nut snugly by hand, then use a wrench to align the next castle slot with the cotter pin hole. Do not over‑tighten, as this can distort the thrust washer and cause prop binding. Always insert the cotter pin and bend the legs to secure it.

Q: Why are some kits brass and others stainless steel?

A: Brass castle nuts are preferred for saltwater use because they resist seizing on the stainless prop shaft. Stainless cotter pins provide the necessary strength and corrosion resistance for the retaining pin. This material combination is standard across most marine propeller setups.

Yamaha Outboard Propeller Hardware Kit – Castle Nut, Spacer, Washer & Cotter Pin for 2‑Stroke & 4‑Stroke Engines

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