Exhaust Manifold Gasket for Volvo Penta 3.0L GL, GS, GLM & GSM Engines – Replaces 3853256, MAR879
Exhaust Manifold Gasket for Volvo Penta 3.0L GL, GS, GLM & GSM Engines – Replaces 3853256, MAR879 is backordered and will ship as soon as it is back in stock.
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Exhaust Manifold Gasket for Volvo Penta 3.0L GL, GS, GLM & GSM ...
Exhaust Manifold Gasket for Volvo Penta 3.0L GL, GS, GLM & GSM Engines – Replaces 3853256, MAR879 is backordered and will ship as soon as it is back in stock.
Product Details
This exhaust manifold gasket is intended for Volvo Penta 3.0L GL, GS, GLM, and GSM four-cylinder gasoline marine engines listed below. It replaces the original gasket at the exhaust manifold mounting interface and is supplied as a gasket only.
The listed replacement and cross-reference numbers include Volvo Penta 3853256, 3850495, 3853431, 3853378, and aftermarket reference MAR879. Confirm the number stamped or listed for your original gasket before ordering.
- Replacement exhaust manifold gasket for the listed Volvo Penta 3.0L applications.
- Designed for installation at the manifold-to-cylinder-head sealing surface.
- Gasket only; manifold bolts, nuts, washers, and other hardware are not included.
- Verify the exact engine model and year before installation, since model suffixes and production details may affect fitment.
Part Number Matrix
Use these references to help compare the replacement gasket with your original part and engine documentation.
| Brand or Source | Part Number |
|---|---|
| Volvo Penta | 3853256 |
| Volvo Penta | 3850495 |
| Volvo Penta | 3853431 |
| Volvo Penta | 3853378 |
| Aftermarket reference | MAR879 |
Engine & Model Compatibility
The following Volvo Penta 3.0L gasoline, four-stroke engine models are listed for this gasket application. Match the complete model designation and production year with your engine identification label or service documentation.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|---|
| Volvo Penta | 3.0GLP-A, 3.0GLP-B | 135–140 | 4-Stroke | 1990–2017 | 3853256 |
| Volvo Penta | 3.0GLM-A, 3.0GLM-B, 3.0GLM-C | 135–140 | 4-Stroke | 1990–2017 | 3853256 |
| Volvo Penta | 3.0GSP-A, 3.0GSP-B, 3.0GSP-C | 135–140 | 4-Stroke | 1990–2017 | 3853256 |
| Volvo Penta | 3.0GSM-A, 3.0GSM-B, 3.0GSM-C | 135–140 | 4-Stroke | 1990–2017 | 3853256 |
| Volvo Penta | 3.0GLP-C, 3.0GLP-D, 3.0GLP-E, 3.0GLP-J, 3.0GLP-N | 135–140 | 4-Stroke | 1990–2017 | 3853256 |
| Volvo Penta | 3.0GLMMDA | 135–140 | 4-Stroke | 1990–2017 | 3853256 |
| Volvo Penta | 3.0GSPMDA | 135–140 | 4-Stroke | 1990–2017 | 3853256 |
| Volvo Penta | 3.0GSMHUB, 3.0GSPHUB | 135–140 | 4-Stroke | 1990–2017 | 3853256 |
| Volvo Penta | 3.0GSMNCA, 3.0GSMNCS, 3.0GSPNCA, 3.0GSPNCS | 135–140 | 4-Stroke | 1990–2017 | 3853256 |
| Volvo Penta | 3.0GSMLKD, 3.0GSPLKD | 135–140 | 4-Stroke | 1990–2017 | 3853256 |
| Volvo Penta | 3.0GSMWTR, 3.0GSMWTS, 3.0GSPWTR, 3.0GSPWTS | 135–140 | 4-Stroke | 1990–2017 | 3853256 |
| Volvo Penta | 3.0GSMEFS, 3.0GSPEFS | 135–140 | 4-Stroke | 1990–2017 | 3853256 |
| Volvo Penta | 3.0GSMBY, 3.0GSPBY | 135–140 | 4-Stroke | 1990–2017 | 3853256 |
Technical Specs
- Product Type
- Exhaust manifold gasket
- Application
- Volvo Penta 3.0L gasoline marine engines
- Engine Configuration
- Four-cylinder, four-stroke
- Installation
- Replacement at the exhaust manifold sealing surface
- Included Hardware
- None; gasket only
- Weight
- 0.71 kg (1.56 lbs), as listed
- Product Dimensions
- 50.0 cm L x 13.0 cm W x 3.0 cm H, as listed
What’s in the Box
- 1 x Exhaust manifold gasket
Installation Notes
- Disconnect the battery and allow the engine to cool completely before starting work.
- Remove or disconnect hoses, sensors, and other components that obstruct access to the exhaust manifold.
- Remove the manifold fasteners and carefully separate the manifold from the cylinder head.
- Clean the cylinder-head and manifold sealing surfaces thoroughly. Remove all old gasket material without damaging the mating surfaces.
- Position the new exhaust manifold gasket correctly on the cylinder head and align the manifold with the mounting holes.
- Install the original or separately purchased replacement hardware and hand-tighten the fasteners.
- Use a torque wrench to tighten the fasteners in the sequence and to the value specified in the applicable Volvo Penta service manual.
- Reconnect any hoses, sensors, and components removed during disassembly.
- Reconnect the battery, start the engine, and inspect the manifold area for exhaust or fluid leaks after the engine reaches operating temperature.
Troubleshooting & FAQ
How do I confirm this gasket fits my Volvo Penta 3.0L engine?
Match the complete engine model, model suffix, year, and original part number with the compatibility table and your engine service documentation. The gasket shape and mounting-hole pattern should also match the removed gasket. If any of these details differ, confirm fitment before ordering.
What are common signs of an exhaust manifold gasket failure?
Common signs include a ticking or hissing exhaust leak, soot near the manifold joint, exhaust odor, visible leakage around the sealing surface, or abnormal engine-bay noise that is more noticeable when the engine is cold.
Does this product include manifold bolts or other hardware?
No. This listing is for one exhaust manifold gasket only. Bolts, nuts, washers, and other installation hardware are not included.
What are the torque specifications?
Torque specifications and tightening sequences depend on the exact engine model. Always use the applicable Volvo Penta service and repair manual rather than guessing the torque value.
Should I reuse the old gasket?
No. A removed exhaust manifold gasket should be replaced with a new gasket. Inspect the manifold, cylinder-head sealing surfaces, and fasteners for corrosion, distortion, or damage before reassembly.
Is this an OEM part?
This listing is for an aftermarket replacement gasket. Volvo Penta part numbers are provided for identification and cross-reference purposes.
Shipping speed & cost
Standard shipping is free, with typical transit of 5–15 days. Expedited options appear at checkout where available.
Warranty & returns
Coverage is subject to the applicable manufacturer and store policies. Contact support with your order details if you receive a damaged or defective product. Returns must meet the standard return conditions and timeframe.
Safety & Important Info
- Verify the engine model, year, original part number, and gasket shape before purchase.
- Allow the engine to cool completely and disconnect the battery before beginning installation.
- Do not operate the engine with an unresolved exhaust leak.
- Professional installation is recommended when access is limited or the manifold and fasteners show corrosion or damage.
About Sea Sierra
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- Fast Global Fulfillment — Free standard delivery is available to most regions, with typical transit of 5–15 days.
- Manufacturer-Direct Value — Practical replacement parts at competitive pricing.
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