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2-Pack Gear Housing Oil Seals for Mercury Marine and MerCruiser Applications – Replaces 26-14077, F697555 and 320862

Sale price $18.50 Regular price $29.00

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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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Product Details

This 2-pack of gear housing oil seals is designed for selected Mercury Marine outboards, MerCruiser sterndrives and other marine applications using the listed replacement numbers. The seals help retain gear lubricant and reduce the risk of water entering the gearcase when correctly installed in the applicable bearing carrier or housing.

These aftermarket replacement seals cross-reference Mercury 26-14077 and 26-F697555, Force F697555, OMC 320862, Sierra 18-2077, GLM 85130 and Mallory 9-76119.

  • Package contains two oil seals.
  • Rubber sealing element with a metal casing for press-fit installation.
  • Designed to help prevent gear-lube leakage and water intrusion.
  • Check the original seal, part number, model and serial-number range before ordering.

Part Number Matrix

Use the following references to compare the seal with the part being replaced. Cross-reference numbers do not replace model, serial-number and dimensional verification.

Brand Part Number
Mercury 26-14077
Mercury 26-F697555
Force F697555
OMC Johnson/Evinrude 320862
Sierra 18-2077
GLM 85130
Mallory 9-76119

Engine and Model Compatibility

The applications below are reference information for seals listed under the corresponding part number. Confirm the complete engine model, stroke or displacement, and serial-number range before installation. A number appearing in a catalog or cross-reference does not by itself confirm every model in a product family.

Brand Model Rated HP Configuration Serial or Application Range Reference No.
Mercury 105 JET 105 2-Stroke 0G303046–0G760299 26-14077
Mercury 110 JET 110 2-Stroke 1B690542–1B974227 26-14077
Mercury V-115 DFI 115 2-Stroke 0G960500–0T178499 26-14077
Mercury V-135 / V-135 DFI 135 2-Stroke 0G303046–1B417702+ 26-14077
Mercury V-140 JET 140 2-Stroke 0G303046–0T178499 26-14077
Mercury V-150 / V-150 EFI 150 2-Stroke 0G303046–1B227000+ 26-14077
Mercury V-150 DFI 150 2-Stroke 0G590000–1B417702+ 26-14077
Mercury 150 Pro XS 150 2-Stroke 1B690542–2B535572 26-14077
Mercury 150 EFI Pro Max/Super Mag 150 2-Stroke 0D935000–0G856999 26-14077
Mercury V-175 / V-175 EFI 175 2-Stroke 0G303046–0T800999+ 26-14077
Mercury V-175 DFI 175 2-Stroke 0T178500–1B417702+ 26-14077
Mercury 175 Pro XS 175 2-Stroke 1B516339–2B535624 26-14077
Mercury V-200 / V-200 EFI 200 2-Stroke 0G303046–1B227000+ 26-14077
Mercury 200 DFI / 200 EFI / 200 DTS DFI 200 3.0L Model-specific ranges through 1B504988 26-14077
Mercury 200 EFI Pro Max/Super Mag 200 2-Stroke 0D935000–0G856999 26-14077
Mercury 225 Carb / EFI / DFI / DTS DFI 225 3.0L Model-specific ranges through 1B504988 26-14077
Mercury 225 Marathon/SeaPro 225 3.0L 0G245605–1B417701 26-14077
Mercury 250 EFI 250 3.0L 0G129222–1B504988 26-14077
Mercury 250 XS / Mercury Racing 250XS DFI 250 3.0L 0T651945–1E000796 26-14077
Mercury Racing 300 ProMax/SuperMag 300 3.0L 0G610221–0T105297 26-14077
Mercury Racing 300X ProMax 300 3.0L 0T235084–0T999587 26-14077
Mercury Racing JP 3.0L DFI — 3.0L 0T997974–1E003045 26-14077
Brand Model Application Years Serial or Application Range Reference No.
MerCruiser R/MR/Alpha One Sterndrive 1983–1990 6225577–0F386995 26-14077
MerCruiser R/MR/Alpha One Transom assembly 1983–1990 6216687–0F386995 26-14077
MerCruiser Alpha One Gen II Sterndrive 1991–1995 0D469859–0F679999 26-14077
MerCruiser Alpha One Gen II Sterndrive 1996–1997 0F680000–0K999999 26-14077
MerCruiser Alpha One Gen II Sterndrive 1998+ 0L100040+ 26-14077
MerCruiser Alpha One SS Sterndrive 1986–1989 See unit serial number 26-14077
MerCruiser SSM II/III/IV/V Sterndrive 1982–1995 See unit serial number 26-14077
MerCruiser Vazer Sterndrive — 0W995000+ 26-14077
MerCruiser Vazer Transom assembly — 0W755000+ 26-14077
Brand Model or Application Rated HP Years Reference No.
Force Outboard applications 90 1989–1994 F697555 / 26-F697555
Force Outboard applications 120 1990–1994 F697555 / 26-F697555
Force Outboard applications 150 1989–1994 F697555 / 26-F697555
OMC Cobra — — 320862
OMC Stringer — — 320862

Technical Specifications

Product Type
Gear housing and propeller-shaft oil seal
Package Quantity
2 oil seals
Installation
Press-fit
Construction
Rubber sealing element with metal casing
Dimensions
30 mm ID × 43 mm OD × 6.3 mm thickness
Operating Temperature
-20°C to 120°C (-4°F to 248°F)
Function
Helps retain gear lubricant and limit water entry at the applicable sealing location

What's in the Box

  • 2 × gear housing oil seals

Installation Notes

  1. Place a drain pan under the lower unit and remove the lower drain/fill screw and upper vent screw to drain the gear lubricant.
  2. Remove the propeller and the propeller-shaft bearing-carrier assembly as required by the applicable service procedure.
  3. Carefully remove the old seal without scratching the bearing carrier or sealing surfaces.
  4. Clean the seal pocket and remove old sealant, debris and residue.
  5. Apply a thin film of suitable marine grease or the lubricant specified by the service manual to the seal's outer edge and sealing lip.
  6. Use an appropriately sized seal driver or socket to press the seal evenly and squarely into position. Do not deform the metal casing.
  7. Reinstall the bearing carrier and propeller, then refill the gearcase with the specified marine gear lubricant. Check for leaks after service.

Troubleshooting and FAQ

How do I confirm fitment?

Compare the original seal's manufacturer number and dimensions with the cross-reference and specification information above. Also verify the exact engine or sterndrive model and serial-number range. If the original part, housing or dimensions differ, do not assume compatibility.

What are signs of a failing propeller-shaft oil seal?

Possible signs include milky or creamy gear lubricant caused by water contamination, falling lubricant level, visible lubricant near the propeller shaft, or an oily sheen around the drive. Inspect and pressure-test the gearcase according to the applicable service procedure.

Is this a driveshaft or propeller-shaft seal?

The listed application is a gear housing or propeller-shaft oil seal used at the applicable bearing-carrier or gear-housing location. Confirm the exact position in the service manual for your unit.

Can the old seal be reused?

No. Oil seals are normally single-use parts, and removal can damage the sealing lip or casing even when damage is not immediately visible.

What lubricant or sealant should be used?

Use the lubricant or sealant specified by the engine or sterndrive service manual. A light film of compatible marine grease can help protect the sealing lip during installation; avoid contaminating the sealing surfaces.

Is this an OEM part?

No. This listing is for an aftermarket replacement seal supplied against the listed OEM and aftermarket reference numbers.

Safety and Important Information

  • Verify the original part number, dimensions, engine or sterndrive model, and serial number before purchase and installation.
  • Follow the applicable manufacturer service manual for removal, installation, lubricant type and gearcase pressure testing.
  • Professional installation is recommended when bearing-carrier removal or gearcase service is required.
  • Do not operate the unit if gear lubricant leaks or water intrusion is detected until the cause has been corrected.

About Sea Sierra

  • Pro-Grade Standards — Marine replacement parts selected for dependable service in real-world operating conditions.
  • Fast Global Fulfillment — Standard delivery options are available to many regions; delivery estimates are shown at checkout.
  • Manufacturer-Direct Value — Competitive replacement-part pricing without unnecessary markup.

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