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Black marine starter motor on a white background
Long threaded bolt with hex head on a white background
Black Sierra 18-55510 starter on a white background
Close-up of a black Sierra starter on a white background
Black Sierra starter motor on a white background
Black marine starter motor on a white background
Long threaded bolt with hex head on a white background
Black Sierra 18-55510 starter on a white background
Close-up of a black Sierra starter on a white background
Black Sierra starter motor on a white background
SKU 18-55510

Inboard/Outboard Starter | 18-55510

For 4.5L and 6.2L Non-GM Engines

by SIERRA
Availability:
in stock, ready to be shipped
$309.39 - $309.39
$309.39
$309.39 - $309.39
$309.39

The Sierra 18-55510 Inboard/Outboard Starter has an enhanced solenoid design.  Superior brush connections ensure consistent performance, while updated planetary and clutch gears extend service life. Strategic seals protect against water intrusion—critical for marine environments. Longer battery terminals simplify installation, and premium materials throughout maximize durability in demanding conditions.

OEM INTERCHANGE

Mercruiser SternDrive: 50-8M0095471
California Proposition 65 Warning WARNING Cancer or Reproductive Harm — www.P65Warnings.ca.gov
  • Superior connection between the solenoid and the commutator brushes
  • Updated planetary gear and clutch gear spring to maximize life span and reliability
  • Updated solenoid design provides optimum performance by utilizing higher quality materials
  • New solenoid also offers an increased battery terminal length for easier installation
  • Seals are strategically integrated to reduce opportunities for water intrusion
  • Application: 4.5L and 6.2L Non-GM Engines

Logistics

  • Dimensions parcel depth, ["]: 7
  • Dimensions parcel height, ["]: 5.25
  • Dimensions parcel width, ["]: 5.75
  • Parcel weight, [lbs]: 4.35

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Interchange for Inboard/Outboard Starter | 18-55510

Mercruiser SternDrive: 50-8M0095471

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ALMOST 60 YEARS OF SIERRA

SIERRA has a 58-year history as a leading global manufacturer of aftermarket engine and drive parts for the marine industry. The SIERRA brand encompasses the full SIERRA Marine product lines, as well as expansive brands formerly known as Shields and Moeller.

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