Cylinder Head Gasket – Fits Volvo Penta D1-30 (Replaces 3840842)
Cylinder Head Gasket – Fits Volvo Penta D1-30 (Replaces 3840842) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Cylinder Head Gasket – Fits Volvo Penta D1-30 (Replaces 3840842)
Product Details
This Cylinder Head Gasket is engineered to fit Volvo Penta D1-30 marine diesel engines, serving as a high-quality aftermarket component for essential engine repairs and rebuilds. It ensures a precise seal between the cylinder head and the engine block.
This part is a direct interchange for Volvo Penta part numbers 3840842 and 3840761.
- Installation: Direct Replacement
- Intended Environment: Marine Diesel Engines
- Included Essentials: Gasket ensures a secure, leak-free seal.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Volvo Penta | 3840842 | Supersedes 3840761 |
| Volvo Penta | 3840761 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|
| Volvo Penta | D1-30 | 4-Stroke | 3840842 | Superseded 3840761 |
Technical Specs
- Product Type
- Cylinder Head Gasket
- Installation
- Direct Replacement
- Fuel Type
- Diesel
- Dimensions
- 30.0 cm x 30.0 cm x 0.1 cm
- Thickness
- 1.3 mm
What’s in the Box
- 1 x Cylinder Head Gasket (3840842)
Installation Notes
- Disconnect the battery and completely drain the engine's cooling system before beginning work.
- Remove the valve cover, intake and exhaust manifolds, and any other components obstructing access to the cylinder head.
- Following the manufacturer's reverse sequence, carefully loosen and remove the head bolts.
- Lift the cylinder head clear of the engine block. Avoid using metal pry bars that could damage the mating surfaces.
- Thoroughly clean all old gasket material from both the cylinder head and the engine block surfaces. Ensure both surfaces are completely clean, dry, and flat.
- Position the new head gasket correctly on the engine block; check for any "TOP" or orientation markings.
- Carefully lower the cylinder head back into place over the dowel pins.
- Install the head bolts and tighten them in the specified sequence and to the correct torque values as per your engine's service manual.
Troubleshooting & FAQ
How do I confirm this gasket fits my D1-30 engine?
This gasket is a direct replacement for Volvo Penta part numbers 3840842 and 3840761. Always check your engine's service manual or existing part number to confirm compatibility before purchasing.
What are the common signs of a failed cylinder head gasket?
Symptoms of a bad head gasket include engine overheating, white smoke from the exhaust (indicating burning coolant), milky or frothy engine oil (coolant and oil mixing), loss of compression in one or more cylinders, and mysterious coolant loss.
Should I use sealant or adhesive with this gasket?
No. This cylinder head gasket is designed to be installed dry. The use of any sealant can interfere with its ability to seal properly and may cause premature failure. Ensure mating surfaces are immaculately clean before installation.
When should a cylinder head gasket be replaced?
A head gasket does not have a set replacement interval. It should be replaced whenever the cylinder head is removed for service or if any signs of gasket failure are diagnosed.
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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