Wet-Joint Manifold Exhaust Repair Kit for MerCruiser 120 140
Wet-Joint Manifold Exhaust Repair Kit for MerCruiser 120 140 is backordered and will ship as soon as it is back in stock.
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Wet-Joint Manifold Exhaust Repair Kit for MerCruiser 120 140
Wet-Joint Manifold Exhaust Repair Kit for MerCruiser 120 140 is backordered and will ship as soon as it is back in stock.
GH MARINE / BELLOWS & RELATED PARTS
About this part
Manifold exhaust repair kit referenced to MerCruiser component numbers 70981A3, 32-90949, 27-96429, 27-99777, 27-64692, and 27807982 for Model 120 and 140 inline-four sterndrive applications from 1982 through 1995. Designed for engines using the old-style wet-joint exhaust arrangement.
Verify your installed exhaust elbow configuration and carburetor type before ordering, as individual component references correspond to specific two-piece exhaust elbow and Rochester carburetor base gasket layouts.
Match the application
This kit applies to MerCruiser Model 120 and 140 4-cylinder sterndrive engines from 1982 to 1995 equipped with the old-style wet-joint exhaust system.
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MerCruiser · Model 120 / 140
Year: 1982–1995
Inline 4, 4-cylinder, 153 / 181 CID sterndrive applications with the old-style wet-joint exhaust arrangement. Exhaust bellow reference 70981A3 applies to two-piece exhaust elbow setups (distinct from one-piece elbow arrangements using a 4-inch bellow). Carburetor base gasket reference 27-64692 is associated with Rochester carburetors rather than MerCarb setups.
Applies with the stated conditions
Numbers to compare
The numbers below are individual component references associated with this repair kit; they are not single complete-kit replacement numbers.
| MerCruiser Stern / Out Drive | 70981A3, 32-90949, 27-96429, 27-99777, 27-99777-2, 27-64692, 27807982, 27-807982-1 |
|---|---|
| Mercury Mariner | 70981, 32-90949T, 27-99777-2, 27-997771, 27-997772, 27-52076, 27-32910, 27-807982-1 |
| Sierra | 18-2761, 18-2762, 18-1204-1, 18-1204-1-9, 18-2833, 18-2833-9, 18-0356 |
| GLM | 89070, 89090, 33570, 31520, 31660, 32180 |
| Component configuration notes | 70981A3: Exhaust bellow for two-piece exhaust elbow arrangement. 27-64692: Carburetor base gasket associated with Rochester carburetors. |
Technical details
| Product type | Wet-joint manifold exhaust repair kit |
|---|---|
| Brand | GH Marine |
| System configuration | Old-style wet-joint exhaust arrangement (two-piece exhaust elbow / Rochester carburetor base reference) |
| Engine configuration | Inline 4, 4-cylinder, 153 / 181 CID |
Supplied contents
- Manifold exhaust repair kit
Before reassembly
- Verify that the engine has a two-piece exhaust elbow matching bellow reference 70981A3 rather than a one-piece elbow setup that requires a 4-inch bellow.
- Check the installed carburetor model before installing the base gasket; reference 27-64692 matches Rochester carburetors rather than MerCarb units.
- Inspect all wet-joint manifold and exhaust elbow sealing surfaces to ensure they are clean and free of old gasket material or corrosion before fitting the new components.
Questions from the workshop
How do I know if my MerCruiser 120 or 140 uses this old-style wet-joint kit?
Check the exhaust elbow and carburetor on your 1982–1995 153 or 181 CID inline-four engine. This kit includes exhaust bellow reference 70981A3 for a two-piece exhaust elbow (not the one-piece elbow using a 4-inch bellow) and gasket reference 27-64692 for a Rochester carburetor (not a MerCarb unit).
Are the listed OEM numbers for the entire kit or individual components?
The MerCruiser, Mercury Mariner, Sierra, and GLM numbers listed on this page are individual component references for the hoses and gaskets associated with this repair, not single part numbers for a complete OEM 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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