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Exhaust Manifold for MerCruiser 4.3 V6 99746A8 99746A17 18 1952 1 51220 2 Pack
$1,627.99
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$1,627.99
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I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.
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2 Pack Exhaust Manifold for MerCruiser
This 2-pack of exhaust manifolds is designed for MerCruiser 4.3L V6 engines, providing a direct replacement for OEM part numbers 99746A8, 99746A17, 18-1952-1, and 51220.
Overview
This exhaust manifold set delivers reliable performance for MerCruiser 4.3L V6 marine engines. Each manifold is built to direct exhaust gases away from the cylinders efficiently, ensuring smooth operation on the water. The 2-pack includes both left and right side manifolds for a complete replacement.
Built For Performance
- Direct-fit design for MerCruiser 4.3L V6 engines
- Rugged cast iron construction for heat resistance
- Precision-machined mounting surfaces for leak-free seal
- Includes gaskets and hardware for easy installation
- OEM-quality materials extend service life
Fits These Machines
- for MerCruiser 4.3L V6 engines
On-The-Job Use
- Commonly used in MerCruiser stern drive boats
- Ideal for replacing worn or cracked exhaust manifolds
- Essential for routine marine engine maintenance
Specs At A Glance
| Type | 2 Pack |
| Engine | MerCruiser 4.3L V6 |
| Part Number(s) | 99746A8, 99746A17, 18-1952-1, 51220 |
Good To Know
Q: Will this exhaust manifold fit my MerCruiser 4.3L V6? A: Yes, these manifolds are designed as a direct replacement for the specified OEM part numbers, ensuring compatibility with MerCruiser 4.3L V6 engines.
Q: Do I need to replace both manifolds at once? A: While you can replace one side, it is recommended to replace both in a set to maintain balanced exhaust flow and prevent future failures.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.