MerCruiser Stud Kit 97477A3 - Genuine OEM Marine Engine Assembly
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Genuine MerCruiser OEM stud kit engineered for precision fit and reliable fastening in marine engine and drive assemblies. This factory-specification hardware kit includes all necessary studs for proper assembly, ensuring correct thread engagement, clamping force, and long-term durability in demanding marine environments.
Key Features:
- Genuine MerCruiser OEM replacement kit - factory quality and fit
- Complete stud set for specific application - no additional parts needed
- Precision-manufactured to exact tolerances for proper thread engagement
- Marine-grade material engineered to resist corrosion and saltwater exposure
- Heat-treated for optimal strength and fatigue resistance
- Factory-tested for dimensional accuracy and material specifications
- Essential hardware for proper engine and drive assembly
- Direct replacement for worn, damaged, or corroded studs
Technical Specifications:
- Part Number: 97477A3
- Manufacturer: MerCruiser (Mercury Marine)
- Application: MerCruiser Marine Engines and Sterndrives
- Material: Marine-grade steel with corrosion-resistant coating
- Type: Stud kit (complete assembly set)
- Finish: Zinc-plated, cadmium-plated, or stainless steel
- OEM Quality: Factory specification
- Kit Contents: Multiple studs as specified for application
Function and Importance:
Studs are critical fastening components that provide superior clamping force and alignment compared to conventional bolts. They allow for more accurate torque application, reduce the risk of thread damage in soft materials like aluminum, and maintain consistent clamping force under thermal cycling and vibration. Studs are threaded into one component and accept a nut on the opposite end, providing a strong, reliable connection that can be disassembled and reassembled multiple times without degrading thread integrity.
Maintenance and Replacement:
Always replace studs during major engine or drive overhauls, especially when threads show wear, corrosion, or damage. Inspect for bent studs, stripped threads, or dimensional changes. Clean threads thoroughly and apply anti-seize compound or thread locker as specified in factory service procedures. Always use genuine OEM stud kits to ensure proper material specifications, heat treatment, dimensional accuracy, and corrosion resistance. Follow factory torque specifications and tightening sequences for optimal clamping force and assembly integrity.
Compatibility:
Designed for specific MerCruiser engine and sterndrive applications. Verify part number compatibility with your engine model and serial number before ordering. Consult factory service manuals or authorized dealers for application-specific fitment information, torque specifications, and assembly procedures.
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.