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Transom Seal Boot 22-Hole – Fits OMC Stringer 1978–1986 (Replaces OMC 909527)
- $107.77
- $107.77
- Unit price
- per
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Transom Seal Boot 22-Hole – Fits OMC Stringer 1978–1986 (Replaces OMC 909527)
This transom seal boot is designed for OMC Stringer Sterndrive units manufactured between 1978 and 1986. It provides a secure, watertight seal where the sterndrive unit connects to the boat's transom, preventing water intrusion into the bilge.
This component is a direct replacement for OMC part 909527 / 0909527 and several other aftermarket part numbers, ensuring broad compatibility for the specified models.
- Prevents water intrusion at the sterndrive-transom connection point.
- Engineered with a 22-hole bolt pattern for a precise fit on applicable transom plates.
- Made from durable marine-grade rubber to resist saltwater, oil, and UV damage.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| OMC | 909527 / 0909527 |
| Sierra | 18-2768 |
| Mallory | 9-72812 |
| GLM | 86710 |
| EMP | 26-08671 |
| BJKIEW | 106 |
| MTC | 50038 |
Compatible Engine Models
Confirm your engine model/year in the table below.
| Brand | Model | Years | OEM Part No. | Notes |
|---|---|---|---|---|
| OMC | Stringer Sterndrive | 1978–1986 | 909527/0909527 | 22-hole version |
Technical Specifications
| Specification | Value |
|---|---|
| Product Type | Transom Seal Boot |
| Installation | Bolted to transom plate, 22 bolt holes |
| Material | Rubber |
| Color | Black |
| Configuration | 22 bolt holes |
| Warranty | 90 days (Jetunit brand) |
| Application | OMC Stringer Sterndrive units 1978-1986 |
Package Contents
- 1 x Transom Seal Boot (Replaces OMC 909527)
Installation Guide
- Disconnect the vessel's battery before beginning work.
- Carefully detach the sterndrive unit from the transom assembly according to the manufacturer's service manual.
- Unbolt and remove the old transom seal boot from the transom plate.
- Thoroughly clean the mounting surface on the plate, removing all old sealant, corrosion, and debris.
- Apply a marine-grade sealant suitable for below-the-waterline applications to the mounting surface or the new boot.
- Carefully position the new 22-hole seal boot, ensuring all bolt holes are perfectly aligned.
- Install the bolts and tighten them progressively in a crisscross pattern to ensure even pressure and a watertight seal.
- Reinstall the sterndrive unit to the transom assembly.
- After launching the vessel, immediately check for any signs of water leakage around the new seal.
Troubleshooting & FAQ
Q: How do I confirm this boot fits my sterndrive?
A: This transom seal boot is specifically designed for OMC Stringer Sterndrive units from 1978–1986 that use a 22-hole boot. Please verify your model and year, and count the bolt holes on your existing boot or transom plate. It directly replaces OEM part number 909527 / 0909527.
Q: What are the signs that my transom seal boot needs to be replaced?
A: Common signs of a failing boot include visible cracks, perishing or brittle rubber, deformation, or any water leaking into the bilge from the area where the sterndrive passes through the transom.
Q: Is this rubber material resistant to saltwater and UV damage?
A: Yes, it is made from a high-grade rubber compound formulated for marine environments, offering robust resistance to saltwater, oil, and UV degradation. Regular inspection as part of annual maintenance is still recommended.
Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.
Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.
Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.
Important Notes
- Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
- This product is an aftermarket replacement part and is not an OEM component.
- Professional installation is recommended to ensure safety and optimal performance.
Why Choose JLM MARINE?
- Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
- Fast Global Shipping: Free delivery worldwide in 5–15 days.
- Direct from Manufacturer: Competitive pricing without compromising quality.
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