Lower Unit Seal Kit – Fits Johnson Evinrude 85-115 HP V4 Outboards (Replaces Sierra 18-2692, GLM 86712, Mallory 9-74113)
Lower Unit Seal Kit – Fits Johnson Evinrude 85-115 HP V4 Outboards (Replaces Sierra 18-2692, GLM 86712, Mallory 9-74113) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
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Lower Unit Seal Kit – Fits Johnson Evinrude 85-115 HP V4 Outboards ...
Lower Unit Seal Kit – Fits Johnson Evinrude 85-115 HP V4 Outboards (Replaces Sierra 18-2692, GLM 86712, Mallory 9-74113) is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket Lower Unit Seal Kit – Fits Johnson Evinrude 85-115 HP V4 Outboards is designed to rebuild the gearcase on Johnson/Evinrude 85–115 HP V4 2-Stroke outboard motors manufactured between 1973 and 1983. It provides all necessary seals and gaskets for a complete overhaul, restoring gearcase integrity and preventing water intrusion or oil leaks.
It serves as a direct interchange for Sierra 18-2692, GLM 86712, Mallory 9-74113, and QuickMarine 18-2692.
- Engineered for a complete lower unit rebuild project.
- Components are made from durable metal, plastic, and rubber materials.
- Kit components weigh approximately 0.009 kg (0.317 oz).
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Sierra | 18-2692 |
| GLM | 86712 |
| Mallory | 9-74113 |
| QuickMarine | 18-2692 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Johnson/Evinrude models, this kit fits the V4 Crossflow outboards from the specified years.
| Brand | Model | Rated HP | Stroke | Years | Notes |
|---|---|---|---|---|---|
| Johnson/Evinrude | V4 | 85 | 2-Stroke | 1973–1983 | Crossflow design |
| Johnson/Evinrude | V4 | 90 | 2-Stroke | 1973–1983 | Crossflow design |
| Johnson/Evinrude | V4 | 100 | 2-Stroke | 1973–1983 | Crossflow design |
| Johnson/Evinrude | V4 | 110 | 2-Stroke | 1973–1983 | Crossflow design |
| Johnson/Evinrude | V4 | 115 | 2-Stroke | 1973–1983 | Crossflow design |
Technical Specs
- Product Type
- Lower Unit/Gearcase Seal Kit
- Installation
- Complete lower unit rebuild
- Fuel Type
- Gasoline
- Weight
- 0.009 kg (0.317 oz)
What’s in the Box
- 1 x Shift Housing Gasket (18-0110)
- 2 x Oil Seal (18-2001)
- 2 x Oil Seal (18-2026)
- 1 x Solenoid Cover Gasket (18-2874)
- 2 x Drain/Fill Plug Washer (18-4248)
- 4 x O-Ring (18-7109)
- 1 x O-Ring (18-7120)
- 1 x O-Ring (18-7127)
- 1 x O-Ring (18-7130)
- 1 x O-Ring (18-7137)
Installation Notes
- Drain the old gearcase lubricant completely from the lower unit.
- Carefully disconnect the shift linkage and remove the lower unit mounting bolts to detach it from the engine.
- Disassemble the gearcase, including the propeller shaft housing and driveshaft bearing carrier, keeping all components organized.
- Remove all old seals, gaskets, and O-rings. Thoroughly clean all mating surfaces, removing any old sealant or corrosion.
- Install the new seals, gaskets, and O-rings from the kit, ensuring they are properly seated and lubricated where necessary.
- Reassemble the lower unit, torquing all bolts to the manufacturer's specifications.
- Refill the gearcase with fresh, high-quality marine gear lubricant before reinstalling the lower unit.
Troubleshooting & FAQ
How do I know if my lower unit seals are failing?
The most common sign of seal failure is milky or creamy-looking gear oil, which indicates water has contaminated the lubricant. You may also notice oil leaks around the propeller shaft or drain/fill screws.
Will this kit fit my V4 Looper engine?
No, this kit is specifically designed for the V4 Crossflow engine architecture used between 1973 and 1983. It is not compatible with Johnson/Evinrude Looper models.
Can I replace just one leaking seal instead of the whole kit?
While possible, it is highly recommended to replace all seals and gaskets at once. If one seal has failed due to age or wear, others are likely to fail soon. A complete rebuild ensures long-term reliability.
Do I need special tools for installation?
While some disassembly can be done with standard tools, a bearing carrier puller, a seal driver kit, and a press are often necessary for proper, damage-free installation. A pressure tester is also recommended to check for leaks after reassembly.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost?
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns?
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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