MerCruiser Screw - OEM Marine Engine Hardware
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Genuine OEM screw engineered for MerCruiser marine engines and drives. This precision-manufactured fastener ensures proper assembly and secure retention of critical engine components.
Key Features:
- Genuine MerCruiser OEM replacement part
- Marine-grade stainless steel or corrosion-resistant construction
- Precision-threaded for proper fit and torque
- Corrosion-resistant finish for saltwater environments
- Factory-tested for strength and reliability
- Essential hardware for proper assembly
- Prevents loosening under vibration and load
Technical Specifications:
- SKU: 99347
- Manufacturer: MerCruiser
- Part Number: 99347
- Application: MerCruiser Marine Engines and Drives
- Material: Marine-grade stainless steel or corrosion-resistant alloy
- Type: Precision fastening screw
Marine engine fasteners are critical components that must withstand constant vibration, thermal cycling, and exposure to harsh saltwater environments. Using the correct OEM hardware ensures proper thread engagement, torque specifications, and corrosion resistance. Always replace fasteners that show signs of corrosion, stripped threads, or damage. Never substitute automotive or general-purpose hardware in marine applications - use genuine OEM fasteners to ensure proper strength, corrosion resistance, and reliable operation.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 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.