2020 Mercury 50HP 4-Stroke Lower Unit (20″ Shaft)
$1,000.00
Ultra-Low Hours — Excellent Near-New Condition!
Save big on a pristine OEM replacement gearcase! This lower unit was removed from a 2020 Mercury 50 HP EFI 4-Stroke outboard (Serial: 1C604677) after the powerhead blew. The entire motor had only 73 original hours on it when it went down, meaning the gears, seals, and internal components inside this lower unit are barely broken in. Aside from a few minor cosmetic scuffs from handling, it is structurally like new and ready to bolt right up.
Key Specifications
| Specification | Details |
| Compatible Engine | Mercury 50 HP (4-Cylinder, 4-Stroke EFI) |
| Model Year | 2020 |
| Engine Serial Number | 1C604677 |
| Shaft Length | 20″ Long Shaft (L) |
| Total Use | Only 73 Hours |
| Condition | Excellent mechanically; minor superficial cosmetics |
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Description
Why This Lower Unit is a Great Buy
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Barely Used Internals: With a mere 73 hours of runtime before the engine blew, the internal gears, bearings, and water pump housing have virtually zero wear on them.
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Verified Serial Fitment: No guesswork on compatibility—the provided serial number (1C604677) ensures you can match it perfectly to your midsection before purchase.
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OEM Reliability over Aftermarket: Don’t risk your boat’s performance on a cheap aftermarket clone. Get factory-built Mercury reliability and perfect tolerances for a fraction of the price of a brand-new unit.







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