| DS1041-SM137073 |
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$38.99 | |
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Side-Power Sleipner Flexible Coupler & Drive Pin Kit – SE50/SE60 Thruster – SM137073
Side-Power Sleipner Flexible Coupler & Drive Pin Kit – SE50/SE60 Thruster – SM137073
Restore reliable thruster operation with the genuine Sleipner SM137073 flexible coupler and drive pin kit—the mechanical-fuse coupling that joins your motor to the drive shaft on SE50 and SE60 thrusters.
- Fits: Side-Power / Sleipner SE50 and SE60 thrusters
- Complete kit: Flexible coupler plus drive pin—everything for the motor-to-driveshaft connection
- Built-in protection: Acts as a mechanical fuse, designed to break on a tunnel obstruction and spare your gearleg
- Genuine OEM: Manufactured to Sleipner tolerances for a precise, correct-engagement fit
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Technical Information Guide
Product Overview
The Side-Power / Sleipner SM137073 flexible coupler and drive pin kit is the coupling that joins your thruster's electric motor to the drive shaft on SE50 and SE60 systems. It functions as a mechanical fuse: with proper installation and normal operation it should never break. It is engineered to break only if an object is ingested into the tunnel and obstructs the prop—sacrificing itself to protect the far more expensive gearleg from a damaging shock load.
For any captain who relies on a bow or stern thruster for close-quarters handling, the coupler is the component standing between a minor part swap and a major gearleg repair. Keeping a spare aboard means you're never sidelined waiting on a part when you need thruster control most.
Engineered for the Water
This is a genuine Sleipner replacement kit, supplied complete with both the flexible coupler and the drive pin—no sourcing separate components or improvising with non-spec hardware. Because it's the manufacturer-specified assembly, it delivers the exact fit, engagement, and engineered breaking point Sleipner built into the SE50/SE60 platform.
Proper coupler life depends heavily on correct installation. Per Sleipner's own guidance, a coupler that's seeing misalignment or bad engagement will wear or break prematurely—not as the product was intended. When fitting the thruster, ensure there is no build-up on the tunnel where the motor mount bracket sits, and avoid excess sealant from the gearleg side pushing up under the motor mount. On single-prop models, verify drive shaft height using the gauge supplied with the thruster; on twin-prop models, check alignment through the open motor mount bracket with the coupler removed.
Specifications & OEM Fitment
- Manufacturer: Side-Power (Sleipner)
- Distributor Cross-Reference: SM137073
- Kit Contents: Flexible coupler + drive pin
- Function: Mechanical fuse / drive connection between motor and drive shaft
- Installed Location: Between motor and drive shaft
- Fitment: Side-Power / Sleipner SE50 and SE60 thrusters
- Sold: As a kit
Not sure if you need this kit or the loose shear pin? SE50/SE60 thrusters were built in two drive configurations. If your existing part is a gray flexible coupler disc, this kit (SM137073) is what you need. If it's a bare metal pin with no coupler, you need the shear pin (SM42050) instead. Pull your thruster's inspection cover to check, or send us a photo and we'll confirm before you order.
Installation note: A coupler that breaks repeatedly or shows premature wear is usually a sign of drive misalignment, not a faulty part. Confirm proper alignment and engagement on install—it's the difference between a coupler that lasts and one that fails early.
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Apply NowRETURN POLICY
We accept returns on most items within 30 days of delivery.
To start a return, submit a Return Authorization (RA) request using the form below. The RA must be issued within 30 days of the delivery date, and the item must be received back at our warehouse within 14 days of the RA being issued.
Requirements for a full refund include:
1. Item must be in new, uninstalled condition.
2. Item must be returned with all original packaging, hardware, and accessories.
3. Return shipping is prepaid by the customer unless the item arrived damaged, defective, or incorrect due to our error.
4. RA number must be clearly marked on the outside of the package.
NON-RETURNABLE ITEMS: The following are final sale and cannot be returned:
- Special order, built-to-order, or custom items
- Items cut, drilled, modified, or installed
- Items missing original packaging or accessories
- Items without proof of purchase
General - Cancellations, Shipping Damage, Missing Packages, Shipment Refusals:
Claims of shipping damage, incorrect items, or missing items must be reported within seven (7) days of delivery. For LTL freight shipments, damage must be noted on the delivery receipt at the time of delivery. Concealed damage claims after a clean signed POD are difficult to recover and may be denied by the carrier. Orders that have been processed and shipped cannot be cancelled, and you may need to wait until you receive the merchandise in order to return it. Customer is responsible for all costs associated with refused shipments including carrier fees, freight to the customer, and return freight. We reserve the right to refuse returns that are sent COD, without a return authorization, show signs of undisclosed installation/use, have missing parts/packaging, missing proof of purchase, or have SKU numbers that do not match our records. If you do not comply with any of the above conditions, we reserve the right to refuse the return/exchange, or to impose different or additional conditions.
Must Be Returned to the Following Address:
Marine Depot Direct
Returns Department
14716 Central Ave
Chino CA 91710
PARTIAL REFUNDS OR RESTOCKING FEES
| Condition | Refund |
|---|---|
| New condition, within 30-day window | 100% of the item price (less return shipping) |
| New condition, past 30-day window (case-by-case)* | 80% of the item price |
| Items that are damaged, missing parts, not in the original condition, or have obvious signs of use for reasons not due to our error | Up to 50% of the item price |
| Products that are unusable, destroyed, or incomplete to the point of no resale value | 0% of the item price |
*For most items, the return window is 30 days after delivery. LTL freight items, oversized items, and large hardware assemblies may be subject to an additional restocking fee to cover return freight and inspection. This will be disclosed when the RA is issued.
How Refunds Are Issued
If you're receiving a refund after we have received your item, it may take an additional three to five business days to process your return fully and issue your refund.
Once we issue your refund, it may take additional time for your funds to be made available in your account by your financial institution. See the following table for more details.
| Refund Method | Refund Time (After Refund Is Processed) |
|---|---|
| Credit card | Three to five business days |
| Debit card | Up to 10 business days |
| Checking account | Up to 10 business days |
Shipping
In-stock items ship within 1 business day from our California or Florida warehouse. Items showing a lead time above ship once stock arrives at our warehouse.
> Same-day shipping on orders placed before 9:00 AM Pacific Time
> Standard ground delivery is 3-7 business days. Need it sooner? Choose Next Day Air or 2nd Day Air at checkout.
> Free shipping on U.S. orders over $99 (excluding AK and HI)
> Oversized items ship by LTL freight. Inspect the shipment and note any damage on the delivery receipt before signing.
> International shipping to Canada and other countries available at checkout
For full details, see our Shipping Policy.