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...
Why Your Boat Needs a Reliable Exhaust Manifold Mounting Kit Keeping your marine engine running smoothly starts with secure components like the exhaust manifold mounting kit. This essential...
Sierra 18-8536 Exhaust Manifold Mounting Kit - Complete Marine Engine Installation Solution Professional Exhaust System Installation - Complete Hardware Kit for GM Marine Engines Ensure proper exhaust manifold...
Upgrading or repairing your outboard motor's power trim system doesn't have to be a hassle. The Sierra mounting kit delivers reliable hardware that secures your trim components firmly...
Why Your Boat Needs a Reliable Exhaust Manifold Mounting Kit Picture this: you're out on the water, engine humming smoothly, when suddenly you notice a faint exhaust leak...
Upgrading or repairing your boat's exhaust system starts with reliable hardware that stands up to the harsh marine environment. The Sierra 18-8532 Exhaust Manifold Mounting Kit delivers exactly...
Upgrade Your Boat Engine's Reliability with Precision Mounting Hardware Keeping your marine engine running smoothly starts with secure, corrosion-resistant components. The Sierra 18-8527 Exhaust Manifold Mounting Kit delivers...
Upgrading or repairing your boat's exhaust system starts with reliable mounting hardware that stands up to harsh marine conditions. The Sierra 18-8526 kit delivers precision-engineered components designed to...
Upgrade Your Engine's Reliability with the Sierra 18-8524 Kit Keeping your outboard or inboard engine running smoothly starts with secure, corrosion-resistant hardware. The Sierra 18-8524 Exhaust Manifold Mounting...
Upgrading or repairing the exhaust manifold on your Volvo-powered boat? The Sierra 18-8511 mounting kit steps in as a reliable solution designed specifically for 5.0-5.7L engines. This kit...
Marine enthusiasts know the frustration of exhaust system failures on the water—leaky elbows leading to overheating, corrosion eating away at performance, or vibrations loosening mounts during rough seas....
Upgrade Your Marine Engine's Reliability with Precision Hardware Marine environments are unforgiving—constant exposure to saltwater, heat, and vibration can turn even the sturdiest exhaust components into liabilities. That's...
Enhance Your Marine Engine Reliability with the Sierra 18-8503 Kit Keeping your boat's engine running smoothly on the water demands attention to every detail, especially components exposed to...
Discover the Reliability of Sierra 18-8300 Oil Seal for OMC Engines When maintaining your outboard motor, one small component can make a big difference in performance and longevity....
Keeping your Yamaha outboard running smoothly starts with reliable fuel delivery, and the Sierra 18-7843 fuel pump diaphragm plays a crucial role in that process. This precision-engineered replacement...
Why Upgrade to the Sierra Diaphragm Fuel Pump for Your Yamaha or Mariner Outboard Keeping your outboard running smoothly starts with a dependable fuel delivery system. The Sierra...
Keep your outboard motor running smoothly on the water with a reliable upgrade to your carburetor's fuel delivery system. This diaphragm kit steps in as a precise replacement...
Keep your boat's engine running smoothly on every outing with the Sierra 18-7805 Fuel Pump Kit, a direct replacement for the OEM F2A24747-1 part. Designed for marine enthusiasts...
Keep your Johnson or Evinrude outboard running smoothly on the water with this reliable fuel pump kit. Designed as a direct replacement for the original equipment, it tackles...
Keep your outboard motor running smoothly on every outing with a reliable fuel delivery system. A worn-out fuel pump diaphragm can lead to frustrating stalls, hard starts, or...
Revive Your Outboard's Performance with the Sierra Carburetor Kit Nothing disrupts a day on the water like a sluggish outboard motor bogging down from a dirty or worn...
Keep your Yamaha outboard running at peak performance with the Sierra 18-7766 carburetor repair kit. Over time, exposure to ethanol-laced fuels, saltwater, and general wear can clog jets,...
Restore Your Yamaha Outboard's Power with Precision Nothing disrupts a day on the water like a sluggish Yamaha outboard engine bogging down from a faulty carburetor. Fuel delivery...
Revitalize your outboard motor's fuel delivery system with the Sierra 18-7756 Carburetor Kit, a reliable rebuild solution designed for marine enthusiasts who demand peak performance on the water....
Revive Your Suzuki Outboard with Reliable Carburetor Rebuild Nothing disrupts a day on the water like a sputtering Suzuki outboard engine. When fuel delivery falters due to a...
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.
