MerCruiser | Recmar
MerCruiser V6 Exhaust Manifold Wet Joint 99746A17 - Recmar MAR746
MAR746
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Product Specifications and Features
MAR746 is a Recmar replacement wet-joint exhaust manifold for MerCruiser GM-based V6 marine engines. It replaces the original MerCruiser 99746A17 manifold family used on 3.8L and 4.3L V6 applications.
This cast iron centre-rise manifold is used on either the port or starboard side of compatible MerCruiser 229 CID and 262 CID V6 stern drive and inboard engines. It is built for the older two-piece wet-joint exhaust system, where the exhaust elbow/riser seals to the manifold using the wet-joint gasket layout.
This listing is for the V6 wet-joint manifold family only. It is not for later MerCruiser dry-joint exhaust systems.
Key Specifications
| Spec | Details |
|---|---|
| Recmar SKU | MAR746 |
| Product type | Marine exhaust manifold |
| Material | Cast iron |
| Exhaust design | Centre-rise, wet-joint |
| Engine platform | GM V6 229 CID / 262 CID |
| Side | Port or starboard |
| Main OEM reference | MerCruiser 99746A17 |
Engine Compatibility
| Engine family | Models / applications | Notes |
|---|---|---|
| MerCruiser GM V6 3.8L | 229 CID V6 applications | Wet-joint manifold system |
| MerCruiser GM V6 4.3L | 262 CID V6 applications | Common 175, 185 and 205 hp family |
| MerCruiser stern drive / inboard | 1985-2002 V6 applications using 99746A17 | Port or starboard side |
OEM and Cross References
| Brand | Part number | Notes |
|---|---|---|
| Recmar | MAR746 | Aftermarket replacement |
| Mercury / MerCruiser | 99746A17 | Main OEM reference |
| Mercury / MerCruiser | 99746A8 | Earlier / related reference |
| Mercury / MerCruiser | 99746A3 | Earlier / related reference |
| Barr Marine | MC-1-99746 | Aftermarket equivalent |
| Sierra | 18-1952-1 | Aftermarket equivalent |
| GLM | 51220 | Aftermarket equivalent |
| Osco | 9745 | Aftermarket equivalent |
Attributes
| Field | Value |
|---|---|
| Brand | Recmar |
| MPN | MAR746 |
| Product category | Marine Exhaust Manifold |
| Fits brand | MerCruiser |
| Fits engine | GM V6 3.8L / 4.3L |
| Replaces OEM | 99746A17, 99746A8, 99746A3 |
| Material | Cast iron |
| Condition | New |
Important Fitment Notes
| Check before ordering | Why it matters |
|---|---|
| Wet-joint exhaust system | MAR746 is for the older wet-joint V6 manifold layout |
| V6 only | This is not a GM V8 manifold |
| Dry-joint systems | Later dry-joint MerCruiser systems use different manifolds and elbows |
| Port / starboard use | This manifold is suitable for either side on compatible applications |
Shipping Information
Shipping Information
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