• Free shipping

  • Free help & advice

  • Hassle-free returns

  • Factory direct prices

Flash Sale now on!

FLASHSALE25

Y-Pipe Gasket – Fits Volvo Penta 8.1Gi/GXi Series (Replaces 3841013)

Sale price $11.99 Regular price $19.00
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 high-temperature Y-Pipe Gasket creates a secure seal at the engine exhaust connection point. It is designed specifically for Volvo Penta 8.1Gi and 8.1GXi series V8 gasoline engines manufactured between 2005 and 2012.

It serves as a direct replacement for Volvo Penta OEM part number 3841013.

  • Installs at the Y-pipe exhaust connection
  • Engineered from high-temperature resistant gasket material
  • Designed for a direct OEM-equivalent fit

Part Number Matrix

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

Brand Part Number
Volvo Penta 3841013

Engine & Model Compatibility

Confirm your engine model/year in the table below.

For Volvo Penta engines, this gasket fits select 8.1L V8 models from 2005–2012.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Volvo Penta 8.1Gi 420 4-Stroke 2005–2012 3841013 Y-pipe connection gasket
Volvo Penta 8.1GXi 420 4-Stroke 2005–2012 3841013 Y-pipe connection gasket
Volvo Penta 8.1GXi 496 4-Stroke 2005–2012 3841013 Y-pipe connection gasket

Technical Specs

Product Type
Y-Pipe Exhaust Gasket
Installation
Engine exhaust connection point
Fuel Type
Gasoline
Housing Material
High-temperature resistant gasket material
Housing Color
Gray
Dimensions
13.0" L x 10.5" W x 0.01" H
Fitting Type
Direct OEM replacement
Operating Temperature
High-temperature rated for marine exhaust applications
Warranty
OEM warranty when purchased from authorized dealer
Other Technical Attributes
Fits exhaust Y-pipe connection on 8.1L V8 engines

What’s in the Box

  • 1 x Gasket (3841013)

Installation Notes

  1. Ensure the engine is completely cool before beginning work. Disconnect the boat's battery for safety.
  2. Locate the Y-pipe connection at the rear of the engine block where the exhaust manifolds converge.
  3. Carefully remove the bolts securing the Y-pipe connection. You may need to gently pry the joint apart.
  4. Remove the old gasket and discard it. Thoroughly clean both mating surfaces, ensuring they are free of old gasket material, carbon, and corrosion.
  5. Position the new gasket, making sure it aligns with the bolt holes and exhaust ports.
  6. Reassemble the Y-pipe connection, tightening the bolts to the manufacturer's specified torque in a crossing pattern.
  7. Reconnect the battery. Start the engine and carefully check for any signs of exhaust leaks at the connection point.

Troubleshooting & FAQ

How do I know if my Y-pipe gasket is failing?

Signs of a failing Y-pipe gasket include a noticeable exhaust leak sound (ticking or puffing) from the engine compartment, a smell of exhaust fumes, or visible soot/carbon tracking around the connection. Water leaks in the bilge from the exhaust system can also indicate a failed gasket.

Can I reuse my old gasket?

No. Gaskets are designed for one-time use. They crush and conform to the shape of the mating surfaces to create a seal. Reusing an old gasket will almost certainly result in a leak.

Is this gasket for freshwater or saltwater use?

This gasket is made from high-temperature materials suitable for marine exhaust systems in both freshwater and saltwater environments.

What is the recommended replacement interval?

There is no fixed replacement interval for this gasket. It should be replaced whenever the Y-pipe is disconnected for service or if signs of a leak are detected.

Does this part fit other Volvo Penta engines?

This gasket is specifically listed for the 8.1Gi and 8.1GXi series engines from 2005–2012. Do not use it for other models unless your part number explicitly matches 3841013. Always verify compatibility with your engine's service manual.

What tools are required for installation?

You will typically need a socket set, a torque wrench, a gasket scraper or cleaning tool, and potentially a pry bar. Always consult your engine's service manual for specific tool requirements and torque specifications.

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)