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Intake Manifold Gasket – Fits Volvo Penta 5.0L & 5.7L Marine Engines (Replaces 17320)

Sale price $18.99 Regular price $30.00
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Worry-free returns

You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Delivery and Shipping

Free standard shipping on all orders under 1 KG

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This Intake Manifold Gasket is designed for Volvo Penta 5.0L and 5.7L 4-stroke marine engines manufactured between 1989 and 1993. It is engineered for models using the 12-bolt intake manifold design, ensuring a reliable seal and optimal engine performance.

It serves as a direct replacement for several part numbers, including Volvo Penta 17320, Fel-Pro 17320, Sierra 18-0868, and Mercury 27-17145.

  • Resists high heat and prevents leaks with a proprietary molded rubber over aluminized steel carrier.
  • Includes locating tabs to ensure proper gasket alignment during installation.
  • Features built-in torque limiters to help prevent overtightening and gasket damage.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand Part Number
Volvo Penta 17320
Fel-Pro 17320
Sierra 18-0868
Mercury 27-17145

Engine & Model Compatibility

Confirm your engine model/year in the table below.

This part is documented to fit the following Volvo Penta engine models. Please verify your specific engine serial or part number before ordering.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Volvo Penta 5.0L 205 4-Stroke 1989–1993 17320 501 engine
Volvo Penta 5.7L 260 4-Stroke 1989–1993 17320

Technical Specs

Product Type
Intake Manifold Gasket
Installation
Direct fit, replaces OEM gasket
Fuel Type
Gasoline
Housing Material
Rubber over aluminized steel carrier
Housing Color
Black
Dimensions
68.0" L x 11.5" W x 1.0" H
Fitting Type
12-bolt intake manifold design
Other Technical Attributes
Features proprietary molded rubber over aluminized steel carrier which resists high heat; includes locating tabs for proper alignment; includes torque limiters to help prevent overtightening

What’s in the Box

  • 1 x Intake Manifold Gasket (17320)

Installation Notes

  1. Disconnect the battery and drain the engine coolant.
  2. Disconnect fuel lines, electrical connectors, and any throttle linkages attached to the intake manifold.
  3. Remove the bolts securing the intake manifold, following the reverse order of the manufacturer's torque sequence.
  4. Carefully lift the manifold off the engine block.
  5. Remove the old gasket and thoroughly clean both the manifold and cylinder head mating surfaces. Ensure they are free of old gasket material, oil, and debris.
  6. Position the new gasket using the locating tabs for correct alignment.
  7. Carefully place the intake manifold back onto the engine.
  8. Install and tighten the manifold bolts to the manufacturer's specified torque and sequence. Do not overtighten.
  9. Reconnect all fuel lines, electrical connections, and linkages.
  10. Refill the cooling system, reconnect the battery, and start the engine.
  11. Check carefully for any coolant, fuel, or vacuum leaks.

Troubleshooting & FAQ

How do I know if this gasket fits my engine?

This gasket is for Volvo Penta 5.0L & 5.7L engines (1989-1993) with a 12-bolt intake manifold. The best way to confirm is by matching your old part number to one of the equivalents listed in the Part Number Matrix or by checking your engine model in the compatibility table.

What are the signs of a failing intake manifold gasket?

Common symptoms include engine overheating, coolant leaks (often visible as puddles under the vehicle or white residue around the manifold), poor engine performance, misfires, or a "check engine" light. You may also notice milky, contaminated engine oil if coolant is leaking internally.

Can I reuse my old intake manifold bolts?

It is generally not recommended. Many intake manifold bolts are torque-to-yield (TTY), meaning they stretch upon installation and are designed for one-time use. Reusing them can lead to improper clamping force and gasket failure. Always consult your service manual.

How does this aftermarket gasket compare to the OEM part?

This part is designed to meet or exceed original equipment (OEM) specifications for fit, form, and function. It uses comparable materials, like the molded rubber over an aluminized steel carrier, to ensure a durable and reliable seal under high heat conditions.

What is special about the gasket material?

The molded rubber over an aluminized steel carrier design provides superior heat resistance and a robust seal. The steel carrier adds rigidity and strength, while the molded rubber ensures a tight fit against surface imperfections. It also includes features like alignment tabs and torque limiters found in high-quality gaskets.

Do I need to use sealant with this gasket?

Typically, modern gaskets like this are designed to be installed dry without any additional sealants. However, small dabs of RTV sealant are often recommended at the corners where the intake manifold meets the engine block end seals. Always follow the instructions in your engine's service manual.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.

Shipping speed & cost?

We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.

Warranty & returns?

Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.

Safety & Important Info

  • Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
  • This is an aftermarket replacement, not an OEM component.
  • Professional installation is recommended for safety and performance.

About Sea Sierra

  • Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
  • Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
  • Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.

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