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Lower Gasket Set – Fits Volvo Penta AQ Series 4-Cylinder (Replaces 876342, 875400)

Sale price $54.95 Regular price $87.00
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 Lower Gasket Set – Fits Volvo Penta AQ Series 4-Cylinder is an aftermarket replacement designed for various early model Volvo Penta AQ series 4-cylinder marine engines. It provides the essential seals needed for servicing the lower end of the engine block, ensuring a reliable fit and performance.

This kit is a direct replacement for Volvo Penta OEM part numbers 876342 and 875400.

  • Installation Location: Engine Lower End
  • Fuel Compatibility: Gasoline
  • Contents: Includes a complete lower gasket set for a full service.

Part Number Matrix

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

Brand Part Number Notes
Volvo Penta 876342 Aftermarket replacement that supersedes 875400.
Volvo Penta 875400 Superseded by 876342.

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Brand Model Rated HP Stroke OEM Part No. Notes
Volvo Penta Early AQ Series 4-Cylinder Various 4-Stroke 876342, 875400 875400 superseded by 876342

Technical Specs

Product Type
Lower Gasket Set
Installation
Engine Lower End
Fuel Type
Gasoline
Housing Material
Various (Paper, Rubber, Metal)
Other Technical Attributes
For early AQ series 4-cylinder engines
Product Dimensions
58.5 x 25.0 x 3.5

What’s in the Box

  • Complete lower gasket set for early Volvo Penta AQ Series 4-cylinder marine engines

Installation Notes

  1. Ensure the engine is cool and disconnect the battery before starting.
  2. Drain the engine oil and engine coolant completely.
  3. Remove any components obstructing access to the lower engine block.
  4. Carefully unfasten and remove the lower engine components, noting fastener locations.
  5. Thoroughly clean all mating surfaces to remove old gasket material and residue.
  6. Position the new gaskets from the kit, making sure they align perfectly.
  7. Reassemble all components, tightening bolts to the manufacturer's recommended torque specifications.
  8. Refill the engine with the correct type and amount of oil and coolant.
  9. Reconnect the battery, start the engine, and carefully inspect for any leaks.

Troubleshooting & FAQ

What are the signs my lower gasket set is failing?

Common symptoms include oil or coolant leaks around the lower engine seals, milky or contaminated engine oil (indicating a coolant leak into the oil system), and potential engine overheating due to coolant loss.

Will this fit my specific Volvo Penta AQ engine?

This gasket set is designed for early-model 4-cylinder engines in the Volvo Penta AQ series. It is not compatible with later models or 6-cylinder engines. Always verify your part numbers (876342 or 875400) before ordering.

Are instructions included?

Instructions are not included. Installation should follow the procedures outlined in your engine's official service manual. Professional installation is highly recommended.

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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