Mercury MerCruiser Alpha One Gen II Driveshaft Housing Water Tube 860220
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Mercury MerCruiser 860220 is a genuine OEM water tube used in the driveshaft housing water-delivery system on MerCruiser stern drives. Current Mercury dealer references show 32-860220 TUBE, Water superseded to 8M0171252, and current cross-reference sources identify it specifically as a driveshaft housing water tube for Alpha One Gen II applications.
Key Features
- Genuine Mercury Marine OEM part number 860220 / 32-860220.
- Current replacement part number is 8M0171252.
- Identified as a driveshaft housing water tube in current product references.
- Current dealer listing shows GTIN 745061446953.
- Current dealer shipping specs are approximately 0.05 lb, 1.00 in. x 5.75 in. x 0.88 in.
Engine Compatibility
This is not an engine-only part. The strongest supportable fitment for 860220 is MerCruiser stern drive service, specifically Alpha One Gen II drives. Current cross-reference sources tie it to Alpha One Gen II Series OD469859-OK999999 (1991-1997) and OL100040 & up (1998+) driveshaft housing / gear housing applications.
Serial Number Fitment Notice
Verify fitment by exact drive model, serial number, and the correct driveshaft housing / gear housing components parts diagram before ordering. With 860220, the key match is the Alpha One Gen II water-delivery layout rather than the engine model alone.
When This Part Needs Replacement
Replace this water tube when the original is corroded, damaged, blocked, bent, or no longer seals correctly in the driveshaft housing water passage. It is also commonly replaced during related water-pump or driveshaft-housing service when the drive is already apart. This guidance is a practical service inference supported by its documented role as the water tube in the housing assembly.
Installation Notes
Install 860220 or its current replacement 8M0171252 only after confirming the correct Alpha One Gen II housing diagram. Because this is a housing water tube, it should be matched to the exact drive family and water-passage layout rather than ordered by appearance alone.
Alternate/Superseded Part Numbers
Current sources show 8M0171252 as the replacement for 32-860220 / 860220. Related cross-reference sources also associate 814384, Sierra 18-3221, Mallory 9-44010, and GLM 12829 with this water tube application.
Parts Desk Insight
With water tubes like this, the important match is the exact sterndrive family and housing section. A quick serial-number check usually matters more than the tube shape, especially on Alpha One Gen II drives where nearby pump and housing parts can look similar.
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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