Lower Exhaust Hose for OMC Cobra and Volvo Penta Sterndrives, 2.3L–8.2L (Replaces 3852742, 913592, 778066)
Lower Exhaust Hose for OMC Cobra and Volvo Penta Sterndrives, 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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Lower Exhaust Hose for OMC Cobra and Volvo Penta Sterndrives, 2.3L–...
Lower Exhaust Hose for OMC Cobra and Volvo Penta Sterndrives, 2.3L–8.2L (Replaces 3852742, 913592, 778066) is backordered and will ship as soon as it is back in stock.
Product Details
This Lower Exhaust Hose is an aftermarket replacement for selected OMC Cobra and Volvo Penta gasoline sterndrive applications. The listed application range covers engine displacements from 2.3L through 8.2L. It is designed to connect the upper exhaust pipe to the exhaust manifold and help maintain a sealed exhaust and water passage.
Use the original component, engine model, sterndrive configuration, and an applicable manufacturer part number to confirm fitment before ordering. Model and displacement references are application leads rather than a substitute for checking the exact installation.
- Lower exhaust hose/bellow for selected marine sterndrive applications.
- Installs between the upper exhaust pipe and exhaust manifold.
- Listed replacement references include OMC 3852742, 913592, and 778066.
- Aftermarket replacement component; not an OEM-branded part.
Part Number Cross-Reference
The following numbers are listed as replacement or cross-reference numbers for this hose. Confirm the number and physical configuration against the part being replaced.
| Brand | Part Number |
|---|---|
| OMC | 3852742 |
| OMC | 913592 |
| OMC | 778066 |
| Volvo Penta | 3852742 |
| Sierra | 18-2781 |
| GLM | 89230 |
| Mallory | 9-72801 |
Engine and Model Compatibility
The applications below are the listed OMC Cobra and Volvo Penta references associated with this replacement hose. Exact fitment can vary by engine configuration, exhaust arrangement, sterndrive, and production details. Verify the applicable part number and compare the original hose before installation.
| Brand | Application group | Displacement | Stroke | Listed years or range | Reference | Notes |
|---|---|---|---|---|---|---|
| OMC Cobra | 232 series | 2.3L | 4-Stroke | 1988 | 3852742 | Includes 232AMRGDE, 232AMRGDP, 232APRGDE, and 232APRGDP references. |
| OMC Cobra | 262 series | 2.6L | 4-Stroke | 1989 | 3852742 | Includes 262AMLMED and 262APRMED references. |
| OMC Cobra | 432 and 434 series | 4.3L | 4-Stroke | 1988–1989 | 3852742 | Application list includes 432 and 434 model codes. |
| OMC Cobra | 460 series | 4.6L | 4-Stroke | 1989 | 3852742 | Includes 460AMLMED and 460APRMED references. |
| OMC Cobra | 502, 504, 350, and 574 series | 5.0L–5.7L | 4-Stroke | 1986–1998 | 3852742 | Includes multiple model-code variations; verify the exact exhaust configuration. |
| OMC Cobra | 57F series | 5.7L | 4-Stroke | 1997–1998 | 3852742 | Application list includes 57FAPLKD, 57FCPBYC, 57FCPBYD, 57FCPLKD, and 57FDPLKD. |
| OMC Cobra | 584 series | 5.8L | 4-Stroke | 1989–1990 | 3852742 | Includes 584AMLMED, 584AMLPWS, 584APRMED, and 584APRPWS references. |
| OMC Cobra | 744 and 754 series | 7.4L–7.5L | 4-Stroke | 1987–1998 | 3852742 | Includes multiple 7.4L and 7.5L model-code variations. |
| OMC Cobra | 824 series | 8.2L | 4-Stroke | 1992–1998 | 3852742 | Includes 824BPEAMH, 824BPEJVB, and 82FCPBYC references. |
| Volvo Penta | 3.0GLP-E | 3.0L | 4-Stroke | Not specified | 3852742 | Listed with riser extension pipe. |
| Volvo Penta | 5.0GL, 5.0Gi, 5.0GXi, and 5.0OSi families | 5.0L | 4-Stroke | Not specified | 3852742 | Includes multiple A, B, BF, EFS, PBYC, and WTR variants. |
| Volvo Penta | 5.7GL, 5.7Gi, 5.7GSi, 5.7GXi, and 5.7OSi families | 5.7L | 4-Stroke | Not specified | 3852742 | Includes multiple PLK, PMDA, PNCS, PBYC, EFS, and WTR variants. |
| Volvo Penta | 7.4GL, 7.4Gi, 7.4GSi, and 7.4GII families | 7.4L | 4-Stroke | Not specified | 3852742 | Includes multiple HUB, MDA, NCC, NCS, PBYC, PNC, and WTR variants. |
| Volvo Penta | 8.1Gi, 8.1GSi, and 8.1GXi families | 8.1L | 4-Stroke | Not specified | 3852742 | Includes A, B, BF, C, CF, D, DF, and related variants. |
| Volvo Penta | 8.2GL and 8.2GSi families | 8.2L | 4-Stroke | Not specified | 3852742 | Includes GLIMDA, GLIMDM, GLPMDA, GLPMDM, GSiPBYCCE, GSiPEFS, GSiPWTR, and GSiXNCB references. |
| Volvo Penta | DPX and TSK SX/XHP applications | Not specified | 4-Stroke | Not specified | 3852742 | Includes listed DPX385, DPX415, TSK SX-M, TSK SX-MACLT, TSK XHP-B, and TSK XHP-BLT references; verify the specific exhaust arrangement. |
Technical Specifications
- Product type
- Lower exhaust hose/bellow
- Application
- Selected OMC Cobra and Volvo Penta gasoline sterndrives
- Listed displacement range
- 2.3L–8.2L
- Installation location
- Between the upper exhaust pipe and exhaust manifold
- Fuel system application
- Gasoline marine engines
- Connection style
- Slip-on hose connection secured with clamps
- Color
- Black
- Replacement references
- 3852742, 913592, and 778066
What’s in the Box
- 1 × Lower exhaust hose/bellow
Clamp note: The available product record identifies this listing as a single replacement hose rather than a kit. Existing clamps should be inspected and replaced separately if damaged, corroded, or unable to maintain a secure seal.
Installation Notes
- Allow the engine and exhaust system to cool completely and disconnect the battery before beginning work.
- Confirm that the replacement hose matches the original hose, connection points, and applicable part-number reference.
- Locate the hose connecting the upper exhaust pipe and exhaust manifold.
- Loosen and remove the clamps, then carefully work the old hose off both fittings.
- Clean and inspect the fitting surfaces. Replace damaged clamps or fittings before assembly.
- Slide the new hose fully onto both fittings and position the clamps over the correct sealing areas.
- Tighten the clamps securely without overtightening or damaging the hose.
- After installation, run the engine according to the manufacturer’s procedure and check carefully for exhaust or water leaks.
Troubleshooting and FAQ
How do I confirm fitment?
Compare the original hose, connection arrangement, engine and sterndrive configuration, and applicable part number. The listed displacement range alone does not confirm fitment.
What are common signs of a failing exhaust hose?
Inspect for cracks, brittleness, deformation, abrasion, soft spots, corrosion around the clamps, and visible exhaust or water leakage.
Does the listing include clamps?
This product is listed as a single replacement hose. Clamps are not included in the available product record, so inspect the original clamps and obtain replacements separately when necessary.
Can I install it myself?
Installation may be straightforward for an experienced marine mechanic, but professional installation is recommended when access is limited or the correct exhaust configuration cannot be confirmed.
Is this an OEM component?
No. This is an aftermarket replacement hose. The manufacturer and aftermarket reference numbers shown above are provided for identification and fitment comparison.
Safety and Important Information
- Verify the original part number, hose shape, connection points, and engine configuration before purchase.
- Do not operate the engine if the exhaust system leaks.
- Follow the engine and sterndrive manufacturer’s service procedures and safety instructions.
- Professional installation is recommended if the exhaust system, clamps, or mating surfaces show damage.
About Sea Sierra
Sea Sierra supplies aftermarket marine replacement parts for maintenance and repair applications. Product fitment should always be confirmed against the original component and the manufacturer’s application information.
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