Mercruiser Screw - OEM Part 37978
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Genuine Mercruiser OEM screw engineered for secure fastening in marine engine applications. This precision-manufactured component delivers reliable performance and proper fit in demanding saltwater and freshwater environments.
Key Features:
- Genuine OEM Mercruiser part
- Marine-grade corrosion-resistant construction
- Precision threading ensures secure installation
- Direct replacement for part number 37978
Applications: Designed for Mercruiser engine systems. Confirm compatibility using your engine model and serial number before ordering.
Quality Assurance: Manufactured to Mercruiser's strict OEM specifications for durability and long-term reliability in marine conditions.
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.