Lower Exhaust Hose – Fits OMC Cobra & Volvo Penta 2.3L-8.2L (Replaces 3852742, 913592, 778066)
Lower Exhaust Hose – Fits OMC Cobra & Volvo Penta 2.3L-8.2L (Replaces 3852742, 913592, 778066) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
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Lower Exhaust Hose – Fits OMC Cobra & Volvo Penta 2.3L-8.2L (Re...
Product Details
This Lower Exhaust Hose is designed for a direct fit on a wide range of OMC Sterndrive engines from 1986–1998 (including 2.3L to 8.2L models) and various Volvo Penta engines (3.0L to 8.2L) with SX and other sterndrives. It provides a crucial, sealed connection between the upper exhaust pipe and the exhaust manifold.
It serves as a direct interchange for OMC part numbers 3852742, 913592, 778066, and 912376; Volvo Penta 3852742; and popular aftermarket cross-references Sierra 18-2781, GLM 89230, and Mallory 9-72801.
- Installs directly between the upper exhaust pipe and exhaust manifold.
- Made from durable, heat-resistant rubber to withstand the harsh marine environment.
- Includes a new stainless steel clamp for a secure, slip-on connection.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| OMC | 3852742 |
| OMC | 913592 |
| OMC | 778066 |
| OMC | 912376 |
| Volvo Penta | 3852742 |
| Sierra | 18-2781 |
| GLM | 89230 |
| Mallory | 9-72801 |
Engine & Model Compatibility
Confirm your engine model and year in the table below. Verifying fitment against your part number is the most reliable method.
OMC Sterndrive: This hose fits many OMC Sterndrive engines manufactured between 1986 and 1998.
Volvo Penta: Fits various Volvo Penta sterndrive gasoline engines. Because year information is not available for all models, please confirm compatibility by part number or visual comparison.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| OMC | 232AMRGDE, 232AMRGDP, 232APRGDE, 232APRGDP | 2.3L | 4-Stroke | 1988 | 3852742 | |
| OMC | 262AMLMED, 262APRMED | 2.6L | 4-Stroke | 1989 | 3852742 | |
| OMC | 432AMLGDP, 432AMLMED, 432APRGDE, 432APRGDP, 432APRMED | 4.3L | 4-Stroke | 1988–1989 | 3852742 | |
| OMC | 434AMLGDP, 434APRGDP | 4.3L | 4-Stroke | 1988 | 3852742 | |
| OMC | 460AMLMED, 460APRMED | 4.6L | 4-Stroke | 1989 | 3852742 | |
| OMC | 502AMLGDP, 502APRGDP, 504AMLGDP, 504APRGDP | 5.0L | 4-Stroke | 1988 | 3852742 | |
| OMC | 502AMLMED, 502AMLPWS, 502APRMED, 502APRPWS, 502BPBYC, 502BPRMED, 502BPRPWS, 50FBPBYC | 5.0L | 4-Stroke | 1989–1998 | 3852742 | |
| OMC | 504AMARY, 504AMFTC, 504APARY, 504APFTC | 5.0L | 4-Stroke | 1987 | 3852742 | |
| OMC | 504AMKWB, 504AMWXS, 504APKWB, 504APWXS | 5.0L | 4-Stroke | 1986 | 3852742 | |
| OMC | 350AMLMED, 350APRMED, 574AMLMED, 574AMLPWS | 5.7L | 4-Stroke | 1989–1990 | 3852742 | |
| OMC | 572ACPMDA, 572AGPMDA, 572BPBYC, 572BPLKD, 572BPLKR | 5.7L | 4-Stroke | 1994–1998 | 3852742 | |
| OMC | 574APEAMH, 574APEPWS, 574APERGD, 574APLAMH, 574APLRGD, 574APRAMH, 574APRMED, 574APRPWS, 574APRRGD, 574BPEPWS, 574BPERGD, 574BPLKD | 5.7L | 4-Stroke | 1990–1997 | 3852742 | |
| OMC | 574AMFTC, 574APARY, 574APFTC, 574APSRC | 5.7L | 4-Stroke | 1987 | 3852742 | |
| OMC | 574AMKWB, 574AMWXS, 574APKWB, 574APWXS | 5.7L | 4-Stroke | 1986 | 3852742 | |
| OMC | 574AMLGDP, 574APRGDP, 574BMLGDP, 574BPRGDP | 5.7L | 4-Stroke | 1988 | 3852742 | |
| OMC | 57FAPLKD, 57FCPBYC, 57FCPBYD, 57FCPLKD, 57FDPLKD | 5.7L | 4-Stroke | 1997–1998 | 3852742 | |
| OMC | 584AMLMED, 584AMLPWS, 584APRMED, 584APRPWS | 5.8L | 4-Stroke | 1989–1990 | 3852742 | |
| OMC | 744APEPWS, 744APERGD, 744APERGF, 744BPERGD, 744CPEAMH, 744CPEJVB | 7.4L | 4-Stroke | 1990–1993 | 3852742 | |
| OMC | 744DCPMDA, 744DCPMDM, 744DDPMDA, 744DDPMDM, 744DGPMDA, 744DGPMDM, 744DJPMDA, 744DJPMDM | 7.4L | 4-Stroke | 1994 | 3852742 | |
| OMC | 744DPEAMH, 744DPEJVB, 744DPHUB, 744DPPAMH, 744DPPJVB | 7.4L | 4-Stroke | 1992–1995 | 3852742 | |
| OMC | 744EPNCA, 744FPLKD, 744FPNCS, 74FEPHUB, 74FFPNCA, 74FGPLKD, 74FGPNCS, 74FHPBYC, 74FJPBYC, 74FJPBYD | 7.4L | 4-Stroke | 1995–1998 | 3852742 | |
| OMC | 754APEPWS | 7.5L | 4-Stroke | 1990 | 3852742 | |
| OMC | 754APFTC, 754APSRC, 754BPFTC, 754BPSRC | 7.5L | 4-Stroke | 1987 | 3852742 | |
| OMC | 754BMLGDP, 754BPRGDP | 7.5L | 4-Stroke | 1988 | 3852742 | |
| OMC | 824BPEAMH, 824BPEJVB, 82FCPBYC | 8.2L | 4-Stroke | 1992–1998 | 3852742 | |
| Volvo Penta | 3.0GLP-E | 3.0L | 4-Stroke | 3852742 | With riser extension pipe | |
| Volvo Penta | 5.0GiPBYCCE, 5.0GiPEFS, 5.0GiPWTR, 5.0GL-A, 5.0GL-B, 5.0GLPBYC, 5.0GLPEFS, 5.0GLPWTR | 5.0L | 4-Stroke | 3852742 | ||
| Volvo Penta | 5.0GXi-A, 5.0GXi-B, 5.0GXi-BF, 5.0OSi-B, 5.0OSi-BF | 5.0L | 4-Stroke | 3852742 | ||
| Volvo Penta | 5.7Gi-A, 5.7Gi-B, 5.7Gi-BF, 5.7GiI-B, 5.7GIIMDA, 5.7GIINCCCE | 5.7L | 4-Stroke | 3852742 | ||
| Volvo Penta | 5.7GiPHUS, 5.7GIPLKDCE, 5.7GIPLKECE, 5.7GIPMDA, 5.7GIPMDACE, 5.7GIPNCACE | 5.7L | 4-Stroke | 3852742 | ||
| Volvo Penta | 5.7GIPNCBCE, 5.7GIPNCMCE, 5.7GIPNCSCE, 5.7GL-A, 5.7GL-B, 5.7GLIMDA, 5.7GLIPLKDCE | 5.7L | 4-Stroke | 3852742 | ||
| Volvo Penta | 5.7GLPLKA, 5.7GLPLKD, 5.7GLPLKE, 5.7GLPLKR, 5.7GLPMDA, 5.7GLPNCS | 5.7L | 4-Stroke | 3852742 | ||
| Volvo Penta | 5.7GSICPLKD, 5.7GSIPBYCCE, 5.7GSIPEFS, 5.7GSiPLKD, 5.7GSIPLKE, 5.7GSIPWTR | 5.7L | 4-Stroke | 3852742 | ||
| Volvo Penta | 5.7GSPBYC, 5.7GSPEFS, 5.7GSPLKD, 5.7GSPLKE, 5.7GSPWTR, 5.7GXi-A, 5.7GXi-B | 5.7L | 4-Stroke | 3852742 | ||
| Volvo Penta | 5.7GXi-C, 5.7GXi-CF, 5.7GXiI-C, 5.7OSi-A, 5.7OSi-AF, 5.7OSXi-A, 5.7OSXi-AF | 5.7L | 4-Stroke | 3852742 | ||
| Volvo Penta | 7.4GIIHUBCE, 7.4GIINCCCE, 7.4GIINCSCE, 7.4GIPBYCCE, 7.4GIPBYDCE, 7.4GiPEFS | 7.4L | 4-Stroke | 3852742 | ||
| Volvo Penta | 7.4GIPHUSCE, 7.4GIPLKDCE, 7.4GIPLKECE, 7.4GIPNCACE, 7.4GIPNCBCE, 7.4GIPNCMCE | 7.4L | 4-Stroke | 3852742 | ||
| Volvo Penta | 7.4GIPNCSCE, 7.4GIPWTR, 7.4GLIHUB, 7.4GLIMDA, 7.4GLIMDM, 7.4GLINCC, 7.4GLINCS | 7.4L | 4-Stroke | 3852742 | ||
| Volvo Penta | 7.4GLPHUS, 7.4GLPLKD, 7.4GLPLKE, 7.4GLPMDA, 7.4GLPMDM, 7.4GLPNCA, 7.4GLPNCB | 7.4L | 4-Stroke | 3852742 | ||
| Volvo Penta | 7.4GLPNCM, 7.4GLPNCS, 7.4GSIINCC, 7.4GSIINCS, 7.4GSIPBYCCE, 7.4GSiPEFS | 7.4L | 4-Stroke | 3852742 | ||
| Volvo Penta | 7.4GSIPWTR, 7.4GSIXHUS, 7.4GSIXNCB, 7.4GSIXNCM | 7.4L | 4-Stroke | 3852742 | ||
| Volvo Penta | 8.1Gi-A, 8.1Gi-B, 8.1Gi-BF, 8.1Gi-C, 8.1Gi-CF, 8.1Gi-D, 8.1Gi-DF, 8.1GSi-A | 8.1L | 4-Stroke | 3852742 | ||
| Volvo Penta | 8.1GXi-A, 8.1GXi-AF, 8.1GXi-B, 8.1GXi-BF, 8.1GXi-C, 8.1GXi-CF | 8.1L | 4-Stroke | 3852742 | ||
| Volvo Penta | 8.2GLIMDA, 8.2GLIMDM, 8.2GLPMDA, 8.2GLPMDM, 8.2GSIPBYCCE, 8.2GSiPEFS | 8.2L | 4-Stroke | 3852742 | ||
| Volvo Penta | 8.2GSIPWTR, 8.2GSIXNCB | 8.2L | 4-Stroke | 3852742 | ||
| Volvo Penta | DPX385XBYDCE, DPX385XLKE, DPX415XBYDCE, DPX415XLKE | 4-Stroke | 3852742 | |||
| Volvo Penta | TSK SX-M, TSK SX-MACLT, TSK XHP-B, TSK XHP-BLT | 4-Stroke | 3852742 |
Technical Specs
- Product Type
- Lower Exhaust Hose/Bellow
- Installation
- Direct fit between upper exhaust pipe and exhaust manifold
- Fuel Type
- Gasoline (petrol)
- Connection
- Hose with clamp
- Housing Material
- Heat-resistant rubber
- Housing Color
- Black
- Dimensions
- Approximately 4 in. (101.6mm) diameter
- Fitting Type
- Slip-on with clamp
- Included Hardware
- Includes stainless steel clamp
What’s in the Box
- 1 x Lower Exhaust Hose/Bellow (Replaces 3852742, 913592, 778066, 912376)
- 1 x Stainless Steel Clamp
Installation Notes
- Ensure the engine is completely cool and the battery is disconnected.
- Locate the lower exhaust hose, which connects the upper exhaust pipe to the exhaust manifold.
- Using appropriate tools, loosen and remove the clamps securing the old hose at both ends.
- Carefully work the old hose off its fittings. This may require some twisting and pulling.
- Clean the fitting surfaces on the manifold and pipe to ensure a good seal.
- Slide the new exhaust hose into position, ensuring it is fully seated on both fittings.
- Position the new clamp (and reuse the second clamp if in good condition) and tighten securely. Do not overtighten.
- After installation, run the engine and carefully check for any signs of exhaust or water leaks around the new hose.
Troubleshooting & FAQ
How do I know if this exhaust hose will fit my engine?
This part fits a wide range of OMC Cobra and Volvo Penta sterndrives. Please check the "Engine & Model Compatibility" table and cross-reference your engine model and year. Verifying against your original part number is the most reliable method.
What are the signs of a failing exhaust hose?
Common signs include visible cracks, brittleness, bulging, or water and exhaust leaks in the engine bay. A leaking hose can allow water into the engine, causing severe damage.
How often should I replace my exhaust hose?
Exhaust hoses and bellows should be inspected annually for wear and tear. We recommend replacement every 3-5 years as part of regular preventative maintenance, or immediately if any signs of deterioration are found.
Is this hose resistant to oil and fuel?
Yes, it is made from high-grade rubber formulated to resist heat, exhaust fumes, and incidental contact with oil and fuel in a standard marine engine environment.
Does this kit include both clamps?
This package includes one new stainless steel clamp. Depending on your specific engine configuration, you may need to reuse your other existing clamp if it is in good condition or purchase a second one separately.
Can I install this myself?
While installation is straightforward for individuals with mechanical experience, professional installation is always recommended to ensure a proper, leak-free seal and prevent potential engine damage.
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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