Quicksilver Water Inlet Tube Guide Sleeve 29804T | Mercury MerCruiser OEM Cooling
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Quicksilver OEM Water Inlet Tube Guide Sleeve — Part No. 29804T / 23-29804T
- Part Number: 29804T
- Service Format: 23-29804T
- Supersedes: 29804 / 23-29804 → 29804T (current)
- Brand: Quicksilver (Genuine Mercury Marine OEM)
- Type: Water Inlet Tube Guide Sleeve
- System: Cooling — water pump and water inlet tube assembly
- Application: Mercury outboard and MerCruiser sterndrive cooling-system assemblies where the diagram specifies 29804T / 23-29804T
What This Part Does
This genuine OEM guide sleeve supports and aligns the water inlet tube within the cooling-system assembly on compatible Mercury outboards and MerCruiser sterndrives. It ensures the inlet tube seats correctly in the water pump housing, maintaining proper coolant flow alignment. A worn, distorted, or missing guide sleeve can allow the inlet tube to shift out of position, which can reduce cooling efficiency or cause a leak at the housing joint.
29804T is the current updated replacement for the earlier 29804 / 23-29804. If your parts diagram shows the old number, 29804T is the correct current OEM part.
Compatible Applications
- Mercury 9.9 HP / 13.5 HP / 15 HP 4-stroke outboards (confirm by serial number)
- Mercury 20 HP / 25 HP 2-cylinder outboards and jet drive variants (confirm by serial number)
- Mercury 2.5L EFI / DFI / Pro XS outboards (confirm by serial number)
- Mercury R / MR / Alpha One sterndrive and transom assemblies (confirm by serial number)
- Any Mercury or MerCruiser assembly where the current parts diagram specifies 29804T / 23-29804T
Always confirm by exact engine or drive serial number and the current Mercury parts diagram before ordering — fitment ranges broadly across multiple outboard and sterndrive families.
Superseded Part Numbers
- 29804 / 23-29804 → 29804T (current active number)
- Service format: 23-29804T
When to Replace
- Guide sleeve is worn, distorted, cracked, or damaged
- Water pump or water inlet tube is being serviced or replaced
- Cooling system is being rebuilt and small housing hardware is being renewed
- Coolant leak is present at the water inlet tube / housing area
Installation Notes
- Confirm the exact sleeve position in the Mercury parts diagram before fitting
- Install only the part number specified for your assembly — guide sleeves must match the pump and inlet-tube geometry for correct alignment
- Inspect the water inlet tube and pump housing for wear or damage while the assembly is apart
- Follow the Mercury service manual for the correct assembly sequence and torque specifications
Related Products
- Mercury Quicksilver Water Pump Repair Kit 853792A07 — 25–30 HP 4-Stroke
- Mercury MerCruiser Water Pump Repair Kit 89983T1
- Mercury MerCruiser Water Pump Repair Kit 89984T5
- Mercury Water Pump Gasket 858524 — MerCruiser Alpha One & Outboard
- Mercury MerCruiser Cooling System Parts
- Mercury MerCruiser Gaskets & Seals
Parts Desk Insights
The guide sleeve is one of those small cooling-system parts that’s easy to skip during a water pump service — but it’s worth replacing while the pump is already apart. A worn sleeve allows the inlet tube to shift, which can cause a partial seal failure or misalignment that reduces cooling flow without triggering an obvious alarm. The most common issue is overlooking it during pump rebuild because it doesn’t look obviously failed. If the pump is apart, replace the sleeve. The old number 29804 still appears on older diagrams — 29804T is the correct current replacement.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 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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Item must be in new, unused condition
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Important:
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