Mercury MerCruiser Heat Exchanger Gasket 65130 | 27-65130 | Closed Cooling (Limited Old Stock)
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Mercury / MerCruiser OEM Heat Exchanger Gasket ā Part No. 65130 / 27-65130
| Part Number | 65130 / 27-65130 |
|---|---|
| Brand | Mercury Marine / MerCruiser |
| Product Type | Heat Exchanger Gasket |
| System | Closed / Fresh-Water Cooling |
| Availability | ā ļø Discontinued ā limited old stock available. No further stock once depleted. |
Availability Notice
65130 / 27-65130 has been discontinued by Mercury Marine. We have a limited quantity of old stock available. Once this inventory is gone, no further stock will be available from Mercury. If you need this gasket, order promptly. If you are researching a cooling-system service and need to confirm whether a replacement or alternative gasket covers your application, contact us before ordering.
About This Part
The 65130 / 27-65130 is a genuine Mercury Marine / MerCruiser OEM gasket used in selected MerCruiser closed / fresh-water cooling systems. It is part of the heat exchanger assembly on applicable older MerCruiser engines and seals the heat exchanger at its mounting or connection interface to prevent coolant leakage. The closely related 65128 / 27-65128 heat exchanger end-cover gasket is used in the same cooling-system family ā confirm which gasket position your diagram specifies before ordering.
Compatible Applications
65130 is documented in the heat exchanger assemblies on selected older MerCruiser engines. Confirm the exact engine model, serial number, and closed-cooling diagram before ordering. Documented engine families include selected:
- MerCruiser 3.0L / 181 CID inline-4 with closed-cooling package
- MerCruiser 5.7L V8 inboard with closed-cooling package
- Earlier MerCruiser Marine 888 / 215 / 225 fresh-water cooling packages
- Other MerCruiser engines equipped with the applicable heat exchanger assemblies that call for 65130
Fitment is tied to the heat exchanger design and cooling-kit configuration, not engine displacement alone. Match the gasket to your specific parts diagram and assembly position.
When to Replace
- The heat exchanger is removed for service or cleaning
- Coolant is leaking at the heat exchanger mounting or connection interface
- The gasket is crushed, hardened, torn, or deteriorated on inspection
- The heat exchanger or related cooling hardware is being replaced
- The closed-cooling system is being overhauled
A previously compressed gasket should not be reused after the heat exchanger has been removed.
Installation Notes
- Clean all mating surfaces on the heat exchanger and mounting interface before fitting the new gasket
- Inspect the heat exchanger and end cover for corrosion or distortion at the sealing surface
- Confirm whether your assembly uses 65130 alone, 65128 alone, or both gaskets ā verify the quantity and position in the applicable cooling-system diagram
- Install the gasket without folding, pinching, or misaligning it
- Refill the closed-cooling system and pressure-check for leaks after completing the service
Related Products
- Mercury MerCruiser Heat Exchanger End Cover Gasket 65128 / 27-65128 ā related end-cover gasket used in the same closed-cooling system family
Technical FAQ
What is the difference between 65128 and 65130?
Both gaskets are used in the same MerCruiser closed-cooling heat exchanger family, but they seal different positions in the assembly. Confirm which part number your specific diagram calls for at the exact mounting or connection location being serviced. Do not interchange them based on appearance alone.
Is there a current replacement for 65130?
No current Mercury replacement part number has been established for 65130 in the referenced diagrams. If you are working on an older closed-cooling assembly where this gasket is no longer available, confirm with the cooling system diagram whether a custom-cut gasket or alternative heat exchanger assembly covers your application.
Parts Desk Insights
65130 comes up when someone is servicing an older MerCruiser closed-cooling system ā typically a 3.0L, 5.7L, or one of the earlier 888/215/225 packages ā and needs the heat exchanger gasket that is not the end-cover piece. Since this is discontinued old stock, the most important thing to know before ordering is whether your diagram shows 65130 specifically, or whether 65128 covers the position you are sealing. If you are not sure, contact us with your engine serial number and we can help confirm the right gasket before you order. Once this stock is gone, there is no further supply from Mercury.
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 ā 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 ā 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.