• Free shipping

  • Free help & advice

  • Hassle-free returns

  • Factory direct prices

Flash Sale now on!

FLASHSALE25

Manifold Gasket – Fits Volvo Penta AQ165A, AQ170A/B/C, BB170C (Replaces 1378913, 461092, 430140)

Sale price $42.95 Regular price $68.00
Shipping calculated at checkout.

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 marine-grade Manifold Gasket is engineered for Volvo Penta 6-cylinder gasoline engines from the 1970s–1980s, including models AQ165A, AQ170A, AQ170B, AQ170C, and BB170C. It provides a reliable seal for the exhaust manifold, ensuring optimal engine performance and preventing exhaust leaks.

This part is a direct replacement for Volvo Penta part numbers 1378913, 461092, and 430140. It also serves as an interchange for Sierra 18-2925 and ORB16913.

  • Designed for direct-fit installation.
  • Specifically for marine gasoline engine applications.
  • Covered by a one-year parts warranty.

Part Number Matrix

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

Brand Part Number
Volvo Penta 1378913
Volvo Penta 461092
Volvo Penta 430140
Sierra 18-2925
ORB 16913

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Brand Model Rated HP OEM Part No.
Volvo Penta AQ165A 165 1378913/461092
Volvo Penta AQ170A 170 1378913/461092
Volvo Penta AQ170B 170 1378913/461092
Volvo Penta AQ170C 170 1378913/461092
Volvo Penta BB170C 170 1378913/461092

Technical Specs

Product Type
Exhaust Manifold Gasket
Installation
Direct fit
Fuel Type
Gasoline
Dimensions
70.5 cm x 11.5 cm x 1.0 cm
Warranty
One Year Parts Warranty (IPD)
Other Technical Attributes
Marine-grade exhaust manifold gasket designed for use with Volvo Penta inboard/sterndrive engines

What’s in the Box

  • 1 x Manifold Gasket (1378913/461092/430140)

Installation Notes

  1. Disconnect the battery and allow the engine to cool completely.
  2. Drain the engine coolant to a level below the exhaust manifold.
  3. Carefully disconnect all hoses, sensors, and linkages attached to the manifold.
  4. Unbolt and remove the exhaust manifold from the cylinder head.
  5. Remove the old gasket and thoroughly clean both the cylinder head and manifold mating surfaces. Ensure they are free of old gasket material, carbon, and debris.
  6. Position the new gasket correctly over the alignment dowels or bolt holes. Do not use sealant unless specified by the engine manufacturer.
  7. Reinstall the manifold, hand-tightening the bolts first. Then, torque the bolts to the manufacturer's specified sequence and values.
  8. Reconnect all hoses, sensors, and linkages.
  9. Refill the cooling system, reconnect the battery, and start the engine.
  10. Carefully check for any exhaust or coolant leaks around the manifold.

Troubleshooting & FAQ

How do I know if this gasket will fit my specific Volvo Penta engine?

This gasket is designed for the 6-cylinder AQ165A, AQ170A, AQ170B, AQ170C, and BB170C models. Please verify your engine model against the compatibility table. Cross-reference the OEM part number (1378913, 461092, or 430140) with your existing part or service manual to ensure a perfect match.

What are the signs of a failing manifold gasket?

Common symptoms include visible coolant leaks around the manifold, an engine that consistently overheats, white smoke from the exhaust (burning coolant), rough idling, or a noticeable loss of engine power. An audible ticking or hissing sound near the manifold can also indicate an exhaust leak.

When should I replace my exhaust manifold gasket?

The gasket should be replaced whenever the exhaust manifold is removed for service or if you observe any signs of failure. There is no fixed replacement interval; it is typically done on an as-needed basis.

Can I install this gasket myself?

While installation is possible for those with mechanical experience, we recommend professional installation. Proper cleaning, seating, and torquing are critical to prevent leaks and ensure engine safety.

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.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • JCB
  • Maestro
  • Mastercard
  • PayPal
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)