Sierra makes OEM-replacement engine parts that cross-reference to the original numbers. Find the gasket, seal, or O-ring for your motor and skip the dealer markup. Cross reference by OEM number Sierra has built aftermarket marine engine parts for decades. The catalog covers gaskets, seals, O rings, and small components that keep an outboard or sterndrive running. The main value of Sierra lies in cross reference. Their parts replace the original equipment piece and deliver the same fit and function, usually at lower cost than a dealer. The key to ordering correctly is matching the part to your engine. Cross reference by OEM number The fastest way to get the right part is the original equipment number. Sierra lists the OEM...
Revitalize your outboard motor's performance with the Sierra 18-7077 carburetor kit, a reliable solution designed for boat enthusiasts who demand precision and durability on the water. This kit...
Reviving that classic Rochester 2-barrel carburetor on your marine engine doesn't have to mean a full replacement. The Sierra 18-7076 repair kit steps in as the go-to solution...
Revitalize your outboard motor's performance with the Sierra 18-7024 Carburetor Kit, designed specifically as a direct replacement for OMC models 382052 and 382053. Whether you're dealing with rough...
Struggling with a sluggish tilt and trim system that leaves your outboard motor hanging awkwardly or refuses to respond when you need it most? The Sierra 18-6789 Tilt/Trim...
Upgrading or replacing the trim motor on your outboard can breathe new life into your boat's power trim and tilt system. The Sierra 18-6774 trim motor, designed for...
Upgrade your Volvo Penta sterndrive's hydraulic system with the Sierra 18-6770 tilt-trim pump, a dependable aftermarket solution engineered to restore smooth, responsive operation. Whether you're dealing with sluggish...
Revitalize your Yamaha outboard's tilt and trim system with a reliable upgrade that tackles common failures head-on. When your boat's motor struggles to raise or lower smoothly, leaving...
Keep your Johnson or Evinrude outboard running smoothly with this reliable starter pawl kit. Designed as a direct replacement for the original equipment, it ensures quick and dependable...
Keep your outboard motor's starter system reliable with the Sierra 18-6503 rewind spring, cross-referenced as 318944. This essential component delivers the tension needed for smooth, consistent rope retraction...
Keep your Yamaha 55-60HP 2-cylinder outboard running smoothly with the Sierra 18-6413 starter. Designed as a direct replacement for worn or failed starters, this reliable component ensures quick,...
Upgrade your boat's electrical system with a dependable power source designed for the harsh marine environment. This 70-amp alternator delivers consistent charging performance, keeping your batteries topped up...
Revitalize your Chrysler's outboard performance with a reliable tilt-trim motor designed for seamless operation. This component takes the hassle out of raising and lowering your engine, ensuring smooth...
Upgrade your outboard motor's power trim and tilt system with the reliable Sierra 18-6273-1 tilt/trim motor. Designed as a direct replacement for common marine engine applications, this motor...
Keep your Volvo Penta marine engine running smoothly with the Sierra 18-6268 relay, a reliable aftermarket replacement designed to match the performance of OEM parts like Volvo 841177...
Why Your Volvo Penta Engine Needs a Reliable Relay Like the Sierra 18-6266 In the demanding world of boating, electrical components face constant battles against moisture, salt spray,...
Protect Your Outboard Engine with Reliable Zinc Anode Protection Every time your boat hits the water, saltwater and electrolytes start their relentless attack on your outboard's metal components....
Essential Replacement for Secure Anode Installation Keep your boat's engine protected from galvanic corrosion with this precision-engineered anode mounting bolt. Designed specifically for marine environments, it ensures a...
Protecting your Suzuki outboard from the harsh realities of saltwater corrosion starts with a reliable sacrificial anode like the Sierra 18-6032. This precision-engineered replacement for the OEM Suzuki...
Protecting your outboard motor from the harsh effects of saltwater starts with the right anode. The Sierra 18-6016A stands out as a reliable choice for boaters who demand...
Keep your boat's electrical system humming smoothly with a dependable alternator designed for the harsh marine environment. This 70-amp unit features a spool mount and serpentine pulley configuration,...
Keep your Volvo Penta engine humming smoothly on the water with the Sierra 18-5979 alternator, a robust 55-amp powerhouse designed as a drop-in replacement for OEM part 3860082....
Imagine gliding across the water with buttery-smooth gear shifts every time you throttle up—no more clunky transitions or hesitation that pulls you out of the moment. That's the...
Boat owners familiar with OMC Cobra sterndrives know the frustration of sluggish shifts or erratic engagement that can disrupt a smooth day on the water. The Sierra 18-5888...
Keep your OMC outboard running smoothly with a reliable stator replacement that matches the original equipment performance. This stator delivers consistent electrical output for ignition and charging systems,...
Sierra makes OEM-replacement engine parts that cross-reference to the original numbers. Find the gasket, seal, or O-ring for your motor and skip the dealer markup.
Sierra has built aftermarket marine engine parts for decades. The catalog covers gaskets, seals, O rings, and small components that keep an outboard or sterndrive running. The main value of Sierra lies in cross reference. Their parts replace the original equipment piece and deliver the same fit and function, usually at lower cost than a dealer. The key to ordering correctly is matching the part to your engine.
The fastest way to get the right part is the original equipment number. Sierra lists the OEM numbers each part replaces. If you have the Mercury, MerCruiser, OMC, Johnson, Evinrude, or Yamaha part number from the old piece or the parts diagram, you can match it directly. Pulling the number off the worn part beats guessing every time.
If you do not have the OEM number, you need the engine make, horsepower, model, and year to narrow it down. Marine engines changed components across model years, so the year matters as much as the horsepower. Have that information in hand before you order so the gasket or seal actually seats.
This collection focuses on the sealing parts that fail with age and heat. Examples include water pump gaskets, oil pan gaskets, carburetor mount gaskets, powerhead seals, and O rings. When you are in there for one repair, replace the related gaskets and seals around it while the unit is apart. It is cheap insurance against pulling the same cover twice.
For common jobs like a water pump rebuild or a powerhead reseal, Sierra offers gasket sets and kits that bundle every piece the job needs. A kit saves you from discovering a missing O ring halfway through the rebuild with the boat in pieces.
Sierra parts are built to marine standards, not generic automotive substitutes. They handle the heat, vibration, and corrosion a marine engine produces. That quality lets them stand in for the OEM piece with confidence.
Not sure which part fits your motor. Give our crew your engine make, model, year, and the OEM number if you have it. We will match the exact Sierra part so the repair goes back together right.
The fastest way is the original equipment number. Sierra lists the OEM numbers each part replaces, so match the Mercury, OMC, or Yamaha number off the old part or parts diagram. Otherwise use your engine make, model, horsepower, and year.
Sierra parts are engineered to replace the original equipment piece with the same fit and function. They are built to marine standards rather than generic automotive substitutes and handle the heat, vibration, and corrosion a marine engine sees.
Marine engines changed components across model years, so the same horsepower can take different parts depending on the year. Have the make, model, year, and OEM number ready so the gasket or seal seats correctly.
Yes. When a unit is apart for one repair, replace the related gaskets, seals, and O rings around it. It is cheap insurance against having to pull the same cover again a season later.
Yes. For common jobs like a water pump rebuild or powerhead reseal, Sierra offers gasket sets that bundle every piece the job needs, so you are not stuck mid rebuild missing one O ring.
