Mercury MerCruiser Stainless Steel Washer 8M0204648
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Genuine OEM Stainless Steel Washer — Part 8M0204648
This genuine Mercury MerCruiser stainless steel washer is built to exact factory dimensions (1.5 × 3.05 × 0.13) and is specified wherever part number 8M0204648 appears in the Mercury parts diagram. Stainless construction resists corrosion in saltwater and high-moisture marine environments, ensuring consistent clamping load and a reliable seal between mating surfaces over the long term.
Key Specifications
- Part Number: 8M0204648
- Material: Stainless Steel
- Dimensions: 1.5 × 3.05 × 0.13
- Genuine OEM — not aftermarket
- Fitment: Mercury MerCruiser assemblies specifying part 8M0204648
Fitment
Match this washer to your Mercury parts diagram using your engine model, serial number, and assembly location. Washer dimensions and material vary across Mercury hardware — always confirm the part number before ordering.
When to Replace
Replace when the washer shows signs of corrosion, deformation, or surface damage, or whenever it is disturbed during service and the seating surface cannot be verified as clean and flat.
Installation
Clean mating surfaces before installation. Follow the Mercury service manual for correct torque values, fastener orientation, and reuse limits. For the companion nut or bolt used in the same assembly, confirm the full fastener set from your parts diagram.
Parts Desk Insights
Best use case: This washer is most commonly needed during exhaust system, transom bracket, and drive unit fastener service on MerCruiser stern drives and inboard engines — anywhere a stainless load-spreading washer is required to protect soft aluminum or composite mating surfaces from fastener pull-through in a corrosive marine environment. Always replace with the OEM stainless specification to maintain factory clamping geometry.
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.