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Sierra > Boating & Marine > Maintenance >

Sierra Boating & Marine Maintenance 

  Buy now from the Sierra Maintenance available at Overton's. Do your own fiberglass and gelcoat repair with epoxy resins, filler, sealants, and fiberglass repair kits from West Systems, 3M, and Hi-Bond. We offer antifouling paints, bottom coats, and topside paints from Interlux, Petit, and Awlgrip. Keep your finish looking new with cleaners, wax, and brushes from 3M, Star brite, Sudbury, and Swobbit.

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Sierra SAE 25W-40 Synthetic Blend Oil For Inboard and Sterndrive Engines, 5 qts.

Sierra SAE 25W-40 Synthetic Blend Oil For Inboard and Sterndrive ...

Key Features
  • Sierra Part #18-9440-4

  • Synthetic blend oil

  • Formulated for Inboards and Sterndrives

  • 5 Quarts / 4.73 Liters

$28.99
Sierra Synthetic Gear Lube, 75W-90, Quart, Sierra Part #18-9680-2

Sierra Synthetic Gear Lube, 75W-90, Quart, Sierra Part #18-9680-2...

Key Features
  • Sierra Part No. 18-9680-2

  • Reduces friction

  • Provides superior wear protection

  • 75W-90

  • Replaces Volvo No. 1141679

$14.99
Sierra Full Synthetic Engine Oil For Volvo Engine, Sierra Part #18-9410-4

Sierra Full Synthetic Engine Oil For Volvo Engine, Sierra Part #...

Key Features
  • Sierra Part #18-9410-4

  • Full synthetic engine oil SAE 30

  • 5 quarts

  • For Volvo engine

$34.99
Sierra Type C Gear Lube, Sierra Part #18-9620-2

Sierra Type C Gear Lube, Sierra Part #18-9620-2

Key Features
  • Sierra Part #18-9620-2

  • Type C gear lube

$8.64
Sierra High Performance Gear Lube, Sierra Part #18-9650-2

Sierra High Performance Gear Lube, Sierra Part #18-9650-2

Key Features
  • Sierra Part #18-9650-2

  • High performance gear lube

  • Quart

$11.99
Sierra Inboard Flusher, Sierra Part #18-9009

Sierra Inboard Flusher, Sierra Part #18-9009

Key Features
  • Sierra Part #18-9009

  • Inboard flusher

  • Fits most engines

$34.99
$29.99
Sierra 10W-40 Semi-Synthetic Oil For Suzuki Engine, Sierra Part #18-9551-2

Sierra 10W-40 Semi-Synthetic Oil For Suzuki Engine, Sierra Part #...

Key Features
  • Sierra Part #18-9551-2

  • 10W-40 semi-synthetic oil

  • For Suzuki engine

$6.74
Sierra SAE 30 Full Synthetic Oil For Volvo Engine, Sierra Part #18-9410-2

Sierra SAE 30 Full Synthetic Oil For Volvo Engine, Sierra Part #...

Key Features
  • Sierra Part #18-9410-2

  • SAE 30 full synthetic oil

  • For Volvo engine

$9.34
Sierra SAE 25W-40 Synthetic Oil For Mercury Marine Engine,Sierra Part #18-9440-2

Sierra SAE 25W-40 Synthetic Oil For Mercury Marine Engine,Sierra ...

Key Features
  • Sierra Part #18-9440-2

  • Synthetic oil

  • For Mercury Marine engine

$7.84
Sierra Oil Filter For Mercury Marine Engine, Sierra Part #18-7879-1

Sierra Oil Filter For Mercury Marine Engine, Sierra Part #18-7879...

Key Features
  • Sierra Part #18-7879-1

  • Oil filter

  • For Chrysler Force/Mercury Marine/OMC/Volvo engine

$5.99
Sierra Oil Filter For Mercury Marine Engine, Sierra Part #18-7758

Sierra Oil Filter For Mercury Marine Engine, Sierra Part #18-7758...

Key Features
  • Sierra Part #18-7758

  • Oil filter

  • For Mercury Marine engine

$8.44
Sierra SAE 25W-40 Synthetic Blend Marine Engine Oil, 4L, Sierra Part #18-9440-3

Sierra SAE 25W-40 Synthetic Blend Marine Engine Oil, 4L, Sierra ...

Key Features
  • Sierra Part #18-9440-3

  • 25W-40 synthetic blend oil

  • 4-cycle oil

  • Replaces Mercury, Yamaha

  • 4 liters

$27.99
Sierra Oil Filter For Yamaha Engine, Sierra Part #18-8700

Sierra Oil Filter For Yamaha Engine, Sierra Part #18-8700

Key Features
  • Sierra Part #18-8700

  • Oil filter

  • For Yamaha engine

$12.99
Sierra Type C Gear Lube, Sierra Part #18-9620-0

Sierra Type C Gear Lube, Sierra Part #18-9620-0

Key Features
  • Sierra Part #18-9620-0

  • Type C gear lube

$7.99
Sierra Premium Gear Lubricant, Sierra Part #18-9600-2

Sierra Premium Gear Lubricant, Sierra Part #18-9600-2

Key Features
  • Sierra Part #18-9600-2

  • Gear lubricant

  • 1 quart

$8.99
Sierra 25W-50 Oil For Mercury Marine Engine, Sierra Part #18-9552-3

Sierra 25W-50 Oil For Mercury Marine Engine, Sierra Part #18-9552...

Key Features
  • Sierra Part #18-9552-3

  • 25W-50 oil

  • For Mercury Marine engine

$31.99
Sierra Synthetic 10W-30 Oil, Sierra Part #18-9690-3

Sierra Synthetic 10W-30 Oil, Sierra Part #18-9690-3

Key Features
  • Sierra Part #18-9690-3

  • Synthetic 10W-30 oil

  • 4-stroke outboard applications

$31.99
Sierra 10W-30 Oil For Mercury Marine Engine, Sierra Part #18-9420-2

Sierra 10W-30 Oil For Mercury Marine Engine, Sierra Part #18-9420...

Key Features
  • Sierra Part #18-9420-2

  • 10W-30 oil

  • For Mercury Marine engine

$7.34
Sierra Grease Gun, 14-oz.

Sierra Grease Gun, 14-oz.

Key Features
  • Heavy-duty, all-steel construction

  • Dependable, long service life

  • 14-oz. capacity

$23.99
Sierra Synthetic TC-W3 Oil For OMC Engine, Sierra Part #18-9540-3

Sierra Synthetic TC-W3 Oil For OMC Engine, Sierra Part #18-9540-3...

Key Features
  • Sierra Part #18-9540-3

  • Synthetic TC-W3 oil

  • For OMC engine

$39.99
Sierra Premium Gear Lube, Sierra Part #18-9600-5

Sierra Premium Gear Lube, Sierra Part #18-9600-5

Key Features
  • Sierra Part #18-9600-5

  • Premium gear lube

  • 5 gallons

$104.99
Sierra Fogging Oil Additive, Sierra Part #18-9550-0

Sierra Fogging Oil Additive, Sierra Part #18-9550-0

Key Features
  • Sierra Part #18-9550-0

  • Fogging oil additive

  • 12 oz.

$7.99
Sierra Oil Filter Wrench, Sierra Part #18-9778

Sierra Oil Filter Wrench, Sierra Part #18-9778

Key Features
  • Sierra Part #18-9778

  • Oil filter wrench

$13.99
Sierra Oil Filter For Mercury Marine Engine, Sierra Part #18-7921

Sierra Oil Filter For Mercury Marine Engine, Sierra Part #18-7921...

Key Features
  • Sierra Part #18-7921

  • Oil filter

  • For Mercury Marine engine

$7.84
Sierra Premium 2-Cycle Oil, Sierra Part #18-9500-3

Sierra Premium 2-Cycle Oil, Sierra Part #18-9500-3

Key Features
  • Sierra Part #18-9500-3

  • Premium 2-cycle oil

  • 1 gallon

$28.99
Sierra Carbon-Free Aerosol Additive, 12 oz.

Sierra Carbon-Free Aerosol Additive, 12 oz.

Key Features
  • Carbon-free cleaner

  • Removes gum, varnish, and carbon deposits

  • For intake ports, valves, pistons, and more

  • Helps maintain 2 and 4-cycle engines

$9.99
Sierra Fast Orange Handle Cleaner, Sierra Part #18-9022-1

Sierra Fast Orange Handle Cleaner, Sierra Part #18-9022-1

Key Features
  • Sierra Part #18-9022-1

  • Fast orange hand cleaner

  • 15 oz.

$11.29
Sierra Oil Filter, Sierra Part #23-7841

Sierra Oil Filter, Sierra Part #23-7841

Key Features
  • Sierra Part #23-7841

  • Oil filter

$21.99
Sierra Oil Filter, Sierra Part #23-7804

Sierra Oil Filter, Sierra Part #23-7804

Key Features
  • Sierra Part #23-7804

  • Oil filter

$19.99
Sierra Oil Filter, Sierra Part #23-7801

Sierra Oil Filter, Sierra Part #23-7801

Key Features
  • Sierra Part #23-7801

  • Oil filter

$18.99
Sierra Seloc Manual, Sierra Part #18-01000

Sierra Seloc Manual, Sierra Part #18-01000

Key Features
  • Sierra Part #18-01000

  • Seloc manual

$42.99
$31.94
Sierra Manual, Sierra Part #18-01602

Sierra Manual, Sierra Part #18-01602

Key Features
  • Sierra Part #18-01602

  • Manual

  • For 2.5-300HP engines

$39.99

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