Mercury MerCruiser Quicksilver Driveshaft Locknut 41527T
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Mercury MerCruiser 41527 is a genuine OEM locknut used in select MerCruiser stern drive driveshaft housing and gear assemblies. Current Mercury dealer references show 41527 superseded to 41527T, and related Mercury supersession records connect the older 62794 driveshaft nut to the same replacement number.
Key Features
- Genuine Mercury Marine OEM part number 41527.
- Current Mercury dealer references show 41527T as the superseding replacement.
- Related Mercury supersession history also ties older part number 62794 to this same replacement path.
- Current dealer shipping specs for 41527 are approximately 0.23 lb, 2.13 in. x 2.13 in. x 0.50 in.
- Current dealer shipping specs for 41527T are approximately 0.19 lb, 1.00 in. x 2.00 in. x 0.38 in.
Engine Compatibility
The strongest supportable fitment for 41527 is MerCruiser stern drive service rather than engine-only use. Current Mercury dealer references connect the superseding 41527T to Alpha One SS (1986-1989), SSM II/III/IV/V (1982-1995), and TR/TRS (1977-1993, serial 4794900 and up) applications. OEM parts diagrams also place this nut in the driveshaft housing and gear assembly section on those stern drive families.
Serial Number Fitment Notice
Verify fitment by exact drive model, serial number, and the correct driveshaft housing / gear assembly parts diagram before ordering. This locknut appears in a specific stern drive service area, so serial-based confirmation is the safest way to match the correct nut for the assembly being serviced.
When This Part Needs Replacement
Replace this locknut when the original is damaged, worn, corroded, deformed, or removed during service and no longer suitable for reuse. Because current OEM diagrams place it in the driveshaft housing and gear assembly, it is best treated as a hardware item that should match the exact drive assembly being rebuilt. This is a practical service inference supported by its documented position in the stern drive gear housing layout.
Installation Notes
Install this part only after confirming the correct MerCruiser stern drive diagram for the unit being serviced. Current OEM diagrams show 41527T used with related parts such as tab washer 62795, lockwasher 62788, driveshaft bearing set 38356A1, and driveshaft 62793T in the same driveshaft housing assembly.
Alternate/Superseded Part Numbers
Current Mercury dealer references show 41527T as the replacement for 41527. Related supersession history also connects 62794 to the same replacement number.
Parts Desk Insight
With stern drive hardware like this, the important match is the exact drive family and assembly location. Small nuts can look interchangeable, but checking the drive diagram first usually avoids ordering the wrong hardware for a gear housing rebuild.
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
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If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
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Important:
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