Skip to content
  • Visa
  • Mastercard
  • American Express
  • Apple Pay
  • PayPal
  • Google Pay
  • Shop Pay
  • Affirm

Cart

Your cart is empty

Mercury Marine Outboard 8 and 9.9 HP Std Gearcase 300 Hr Service Kit - 8M0120837

SKU: 8M0120837
$249.99 $289.99

10 in stock

Mercury 300 Hour Maintenance Kit for Mercury 8 Hp and 9.9 Hp 4-Stroke Outboard Motors (Serial Numbers: 0R042475 and above)

Features:

  • Complete selection of required 300 hour service replacement items in one box. No need to order separate parts
  • Recommended Mercury 4-stroke oil and Mercury Premium Gear Lube (sold separately)
  • Periodic maintenance is easy to do using common shop tools
  • Follow your owner's manual for recommended service to keep your engine running longer and stronger while protecting your investment in your boating fun
  • Produced by Mercury Marine to our stringent original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser stern drive

In The Box

  • Fuel Filter, In-line
  • Thermostat
  • Thermostat Gaskets
  • Spark Plugs x (2)
  • Water Pump Impeller Kit
  • Lower Unit Anode
  • Gear Case Drain Seals
  • Oil Drain Seals

Note: Mercury 4-Stroke Oil and Gear Lube Sold Separately

Mercury Marine outboard maintenance kit with various components on a white background
Mercury Marine Outboard 8 and 9.9 HP Std Gearcase 300 Hr Service Kit - 8M0120837 Sale price$249.99 Regular price$289.99