Mercury Quicksilver Latch Hook 180402
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Overview
Part Number: 180402
Brand: Mercury / Quicksilver
Official Product Type: Latch Hook
Supersedes: No confirmed superseded part number
System: Cowl / Engine Cover — Latch & Retention System
The Mercury Quicksilver 180402 is a genuine OEM latch hook for the cowl and hood latch assemblies used on a wide range of small Mercury and Mariner outboards. This small but essential component is what keeps the engine cover securely closed during operation. When it wears, bends, or breaks, the cowl may not latch properly — this is the correct OEM replacement.
Key Features
- Genuine Mercury Marine / Quicksilver OEM replacement part
- Designed for cowl latch and hood retention assemblies
- Fits a wide range of small Mercury and Mariner outboard families
- Lightweight service hardware — approx. 0.03 lb (0.014 kg)
Compatible Applications
- Mercury / Mariner 6 HP outboard (selected serial ranges)
- Mercury / Mariner 8 HP outboard (selected serial ranges)
- Mercury / Mariner 9.9 HP outboard (selected serial ranges)
- Mercury / Mariner 10 HP outboard (selected serial ranges)
- Mercury / Mariner 15 HP outboard (selected serial ranges)
- Mercury XR10 (selected serial ranges)
- Mercury Marathon (selected serial ranges)
- Mercury Sea Pro (selected serial ranges)
- Mercury Viking (selected serial ranges)
Serial Number Fitment Notice
Cowl latch components can vary by engine model and serial range. Always confirm compatibility using your exact engine model and serial number in the Mercury parts catalog before ordering. Small latch hardware is frequently design-revised across production runs.
Dimensions & Weight
- Weight: Approx. 0.03 lb (0.014 kg)
- Packed dimensions: Estimated small envelope — approx. 5 cm × 3 cm × 2 cm
When to Replace
Replace this latch hook when it is bent, broken, corroded, or no longer engages the cowl latch mechanism cleanly. A damaged hook allows the engine cover to rattle or come loose — a safety concern during operation. This is a low-cost fix that restores proper cowl retention.
Installation Notes
- Match to your engine's exact model and serial number before installation
- Small latch components can vary across cowl generations — confirm using the Mercury parts diagram for your specific engine
- No special tools required; standard hand tools are sufficient for most applications
Related Parts
- Mercury Mariner Cowl Latch Lever — 44461A1 — companion latch lever for compatible assemblies
Technical FAQ
Q: How do I know if this is the right latch hook for my engine?
A: Use your engine's serial number in the Mercury parts catalog to locate the correct cowl assembly diagram. The 180402 appears across many small outboard families, but latch designs do vary — serial confirmation is the safest step.
Q: Can I use an aftermarket latch hook?
A: The OEM hook is engineered to the exact engagement geometry of the Mercury cowl latch. Aftermarket substitutes may not provide the same fit or retention strength. For a safety-critical cowl closure component, OEM is the recommended choice.
Parts Desk Insight
Latch hardware tends to be overlooked at service time until the cowl stops closing properly. The 180402 is a straightforward replacement — the most common issue is confirming the correct hook for the serial range, since Mercury revised cowl designs across production runs of these small outboards. If the latch lever is also worn, consider inspecting the Mercury Mariner Cowl Latch Lever 44461A1 at the same time.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.