Volvo Penta Upper Gear Housing Gasket Kit 3888917 | SX-A DPS-A DPS-B FWD OEM
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Volvo Penta Upper Gear Housing Gasket Kit – 3888917
Part Information
- Part Number: 3888917
- Brand: Volvo Penta
- Official Product Type: Upper Gear Housing Gasket / Seal Kit
- OEM Status: Genuine Volvo Penta
- Supersedes: 876392
- System: Sterndrive – Upper Gear Housing Sealing
- Weight: Approx. 0.25 kg (0.55 lb)
Kit Contents
The 3888917 kit includes the sealing components required for upper gear housing service on applicable SX-A, DPS-A, DPS-B, DPS-B1, and FWD sterndrive upper units:
- Gasket 3889782
- O-ring 3852045
- O-ring 967344
- O-ring 3852565
- O-ring 949656
- O-ring 3855081
- O-ring 925093
- Related upper-unit seal components
Always confirm kit contents against the Volvo Penta upper gear housing service diagram for your specific drive serial number before starting disassembly.
What This Kit Does
The 3888917 is the OEM upper gear housing gasket and seal kit for selected Volvo Penta SX-A, DPS-A, DPS-B, DPS-B1, and FWD sterndrive upper units. It provides all the critical sealing components needed to properly reseal the upper gear housing after service, inspection, or bearing replacement. Using the complete kit rather than replacing individual seals individually reduces the risk of a repeat repair caused by a seal or O-ring that was left in service.
Compatible Applications
- Volvo Penta SX-A
- Volvo Penta DPS-A
- Volvo Penta DPS-B
- Volvo Penta DPS-B1
- Volvo Penta FWD (selected configurations)
Fitment is by drive family and serial number. Use the Volvo Penta upper gear housing parts diagram for your specific drive serial number to confirm 3888917 is the correct kit before ordering. Upper gear housing configurations can vary between serial-number ranges even within the same drive family.
Serial Number Fitment Notice
Confirm 3888917 against the exact drive serial number and upper gear housing breakdown before ordering. Upper unit sealing kits can differ by drive revision, housing configuration, and prior service history.
When to Use This Kit
- Upper gear housing has been opened for service or inspection
- Gear oil leakage is traced to the upper gear housing area
- Gaskets, seals, or O-rings show flattening, hardening, or damage during teardown
- Upper unit bearing replacement or gear service requires housing disassembly
- Scheduled upper-unit overhaul
Installation Notes
Install only on clean, undamaged mating surfaces. Inspect all sealing faces, bores, and adjacent hardware before assembly. Replace the full kit during any upper housing service rather than reusing individual seals that have been disturbed — the labor cost of reopening the upper unit to address a weeping O-ring far exceeds the cost of the kit. Tighten all fasteners to Volvo Penta service specifications for the upper gear housing assembly.
Technical FAQ
Q: Does 3888917 replace 876392?
A: Yes. Volvo Penta 3888917 is the current number and supersedes the earlier 876392 in the same upper-unit sealing group.
Q: Does this kit include bearings?
A: No. This is a gasket and seal kit. Upper gear housing bearings are separate items and should be confirmed from the drive-specific parts diagram.
Q: Should I replace all seals in the kit even if some look fine?
A: Yes. Once the upper housing has been disassembled, replacing the complete kit is best practice. Reusing seals that have been disturbed and compressed risks a fresh leak from a component that appeared serviceable during inspection.
Alternate Part Numbers
- Volvo Penta 3888917
- 876392 (superseded)
- Orbitrade 23021
- Sierra 18-2726
- Recmar REC3888917 / REC23021
Parts Desk Insights
This kit comes up most often when the upper gear housing is opened for a bearing replacement or when a gear-oil leak has been traced to the upper unit. The most common mistake is replacing only the obviously failed seal and leaving the remaining original O-rings in place. On a drive that has been in the water for years, the other seals are typically the same age and will fail shortly after — the full kit is worth it every time the housing is apart. The other common issue is ordering without confirming the drive serial number, since the upper housing configuration can differ between SX-A and DPS revisions.
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
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
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.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.