Volvo Penta Expansion Tank Pressure Cap 1542591
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Volvo Penta 1542591 is a genuine OEM pressure cap used on Volvo Penta cooling-system applications. Volvo Penta’s official parts shop lists 1542591 as an active genuine pressure cap, and current reviewed dealer references identify it more specifically as an expansion / header tank pressure cap. Current reviewed public sources do not publish a confirmed pressure rating, diameter, or cap-neck dimension for this exact OEM number.
Key Features
- Genuine Volvo Penta OEM part number 1542591.
- Used as an expansion / header tank pressure cap in the cooling system.
- Individual service cap sold separately rather than as part of a kit.
- Current reviewed public sources do not provide a reliable OEM pressure-spec or dimensional listing for this exact number.
Engine Compatibility
Current public sources confirm the OEM number clearly, but they are stronger on the cooling-system function than on a broad official marine engine fitment list. The clearest reviewed descriptions identify 1542591 as a Volvo Penta engine expansion/header tank pressure cap, so fitment should be confirmed by exact engine serial number and by matching the existing cap and tank neck before ordering.
Serial Number Fitment Notice
Pressure caps can vary by cap height, locking tabs, pressure setting, and tank-neck design. Confirm Volvo Penta 1542591 by engine serial number and by matching the original cooling-system cap before ordering. Volvo Penta’s parts guidance also directs owners to identify the correct engine, shield, or drive when locating genuine parts.
When This Part Needs Replacement
Replace this cap when the original seal is hardened or damaged, the spring tension is weak, the cap no longer holds pressure correctly, or there are visible signs of leakage or cooling-system loss around the expansion tank neck. Because current reviewed sources identify 1542591 specifically as an expansion/header tank pressure cap, replacement is typically tied to cooling-system sealing and pressure-control issues.
Installation Notes
Install only after confirming the exact cap style and cooling-system application. Compare the replacement directly to the original cap and inspect the tank neck and sealing surfaces during service. Since current public references confirm the part number more clearly than they publish full specs, serial-number verification and direct comparison remain the safest checkpoints before installation.
Alternate/Superseded Part Numbers
Current reviewed aftermarket-equivalent references show Orbitrade 15591 as a replacement part for Volvo Penta 1542591. Current confirmed Volvo Penta ordering number is 1542591.
Parts Desk Insight
For cooling-system caps like 1542591, the strongest buying checkpoint is the exact tank neck and cap style, not the word “pressure cap” alone. Current reviewed sources point clearly to expansion/header tank use, so matching the original cap and confirming by serial number is the cleanest way to avoid ordering the wrong cap.
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
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.