3" Wet-Joint Exhaust Bellows Repair Kit for MerCruiser Model 330-370
3" Wet-Joint Exhaust Bellows Repair Kit for MerCruiser Model 330-370 is backordered and will ship as soon as it is back in stock.
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3" Wet-Joint Exhaust Bellows Repair Kit for MerCruiser Model 3...
3" Wet-Joint Exhaust Bellows Repair Kit for MerCruiser Model 330-370 is backordered and will ship as soon as it is back in stock.
GH MARINE / BELLOWS & RELATED PARTS
About this part
Wet-joint manifold exhaust bellows repair kit referenced to MerCruiser upper bellows 70981A3 and gasket 27-863724 for Model 330-370 GM big-block V8 454/502 CID applications from 1981 and up with a 3" wet-joint exhaust configuration. The references 70981A3 and 27-863724 identify separate exhaust-system components rather than interchangeable single-part numbers for the complete kit; confirm the existing bellows, gasket water-passage layout, and cooling configuration before ordering.
Match the application
For the specified MerCruiser 3" wet-joint exhaust application on GM big-block V8 454/502 CID Model 330-370 engines from 1981 and up. Do not select this kit solely by sterndrive name or engine displacement—verify the wet-joint exhaust setup and gasket water-passage layout against your existing parts.
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MerCruiser · Model 330-370 (V8 B.B., GM 454/502 CID)
Year: 1981 and up
Wet-joint 3" manifold exhaust configuration. Confirm existing upper bellows reference 70981A3, gasket reference 27-863724, water-passage layout, and cooling configuration before ordering.
Applies with the stated conditions
Numbers to compare
Compare both the upper exhaust bellows reference and the gasket reference separately. Numbers 70981A3 and 27-863724 represent distinct exhaust-system components and are not interchangeable numbers for the entire kit.
| MerCruiser upper bellows reference | 70981A3 |
|---|---|
| MerCruiser gasket reference | 27-863724 |
| Mercury Mariner / MerCruiser reference number | 70981 |
| MerCruiser reference numbers | 27-41813, 27-860233 |
| Sierra reference numbers | 18-2762, 18-0897 |
| GLM reference numbers | 89070, 30240 |
Technical details
| Product type | Wet-joint manifold exhaust bellows repair kit |
|---|---|
| Brand | GH Marine |
| Joint style | Wet joint |
| Nominal size | 3" |
| System area | Manifold exhaust system |
Supplied contents
- Wet-joint manifold exhaust bellows repair kit
About GH Marine
GH Marine focuses on bellows and related marine service parts. Compare the application details, reference numbers and supplied contents together to select the part for your repair.
Delivery information
Estimated delivery: 7–15 calendar days.
Help with your order
For application questions, have your drive or engine identification and required part number ready.
Payment & Security
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