How do I confirm pilotpart409793 fits my machine?

Compare the OEM or reference part number, machine model, engine model, and serial number. You can also submit a fitment inquiry before ordering.

In Stock

New Starter Replacement For Mercury Mariner 40HP - 50HP 50-73521, 50-73521-1, 50-86976, 5073521, 50735211, 5086976, SAB0013, 41021047, SAB0016

For Mercury Starter Motor

Starter Motor 50-73521 for Mercury 50HP 76-77

Q: What part numbers are associated with this Starter Motor?

50-73521, 50-73521-1, 50-86976, SAB0013, 41021047, SAB0016

OEM / REF: 50-73521SKU: pilotpart409793

New Starter Replacement For Mercury Mariner 40HP - 50HP 50-73521, 50-73521-1, 50-86976, 5073521, 50735211, 5086976, SAB0013, 41021047, SAB0016 is a Starter Motor replacement part indexed for Part Number and MERCURY 50HP 76-77, with 3 application records on file. Match OEM part number 50-73521 and confirm fitment for...

Stock: In stock
Condition: New
Fitment: Mercury Engine Spare Parts
Category: Starter Motor

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$191.99USD/EA

~~$33,099.00~~Save 99%

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Aug 16 – Aug 23
10	Aug 14 – Aug 21
50	Aug 12 – Aug 19

Estimates from today; confirm exact lead time before payment.

Quantity

Confirm fitment before ordering →

Lead times can vary by freight route and customs. Contact support for expedited shipping.

Starter Motor Description

This Starter Motor is indexed for Part Number; MERCURY 50HP 76-77; MERCURY 50ELPT 80-85; MERCURY 50ELH 79-85. Compare reference number 50-73521 against the label on your existing Mercury component before ordering.

Additional cross references on file: 50-73521-1, 50-86976, SAB0013. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

50-73521 50-73521-1 50-86976 SAB0013 41021047 SAB0016

Applications

Part Number
MERCURY 50HP 76-77
MERCURY 50ELPT 80-85
MERCURY 50ELH 79-85
MERCURY 50EL 78-85
MERCURY 50EH 79-84
MERCURY 50E 78-84
MERCURY 45ELPTO 86-89
MERCURY 45ELO 86-89
MERCURY 45ELHPTO 88-88
MERCURY 45ELHO 86-88
MERCURY 40EO Jet 30 94-97
MERCURY 40EO 92-97
MERCURY 40ELPTO 89-97
MERCURY 40ELO 89-97
MERCURY 40ELHPTO 89-97
MARINER 50ELPTO 86-86
MARINER 50ELO 86-86
MARINER 50ELH 80-85
MARINER 50EL 80-85
MARINER 50E 80-84
MARINER 40EO Magnum 92-96
MARINER 40EO Jet 30 95-97
MARINER 40EO 90-97
MARINER 40ELPTO Magnum 90-96
MARINER 40ELO Magnum 91-96
MARINER 40ELO 90-97
MARINER 40ELHPTO Magnum 90-96

Specifications

Part Number	50-73521, 50-73521-1, 50-86976, 5073521, 50735211, 5086976, SAB0013, 41021047, SAB0016
VOLTAGE	12V
ROTATION	CCW
NUMBER OF TEETH	10T
Part NO.	50-73521, 50-73521-1, 50-86976, 5073521, 50735211, 5086976, SAB0013, 41021047, SAB0016
Specifications	VOLTAGE: 12V

Fitment Notes

Brand or application signal: Mercury Engine Spare Parts
Product family: Starter Motor
System category: Engine Spare Parts > Engine Auxiliary Components > Starter Motor
Recommended verification: OEM number, engine model, serial number, old part photos, and dimensions.

Shipping & Returns

Availability: InStock
Shipping: Shipping quotes can be confirmed before payment for heavy or urgent orders.
Returns: Returns are easier when fitment is confirmed before ordering.
B2B support: Bulk, fleet, and repair-shop requests can be handled through the inquiry form.

Frequently Asked Questions

How do I confirm this part fits my machine?

Match the OEM or reference number first, then verify machine model, engine model, serial number, connector layout, mounting points, and old part photos.

Can I order if my part number is not listed?

Yes. Send the old part number, machine plate, and photos through the fitment inquiry form. Support can review possible replacements or alternatives.

Is this an OEM part?

Products are indexed as replacement parts unless explicitly marked otherwise. Always compare reference numbers and confirm fitment before purchase.