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Outboard Motor Parts | OEM & Aftermarket
Shop OEM and aftermarket outboard motor parts for Mercury, Yamaha, Suzuki, Honda, Johnson / Evinrude / E-TEC, Tohatsu / Nissan, and Chrysler / Force engines. Pro Marine USA carries parts for routine maintenance, troubleshooting, repair, and complete marine engine rebuilds.
Browse by outboard manufacturer or engine system, or use our OEM parts lookup to identify the correct part number before ordering. Find cooling, fuel, ignition, electrical, internal engine, lower unit, steering, trim, service kit, gasket, seal, and rebuild parts in one place.
Shop Outboard Parts by Manufacturer
Chrysler / Force Outboard Parts for Chrysler and Force outboard repair 
Honda Outboard Honda cooling, fuel, electrical, and engine parts 
Johnson / Evinrude / E-TEC Outboard Johnson, Evinrude, E-TEC, and OMC replacement parts 
Mercury Outboard Mercury and Mariner maintenance, repair, and rebuild parts 
Suzuki Outboard Suzuki service, lower unit, fuel, and engine parts 
Tohatsu / Nissan Outboard Tohatsu and Nissan outboard replacement parts 
Yamaha Outboard Yamaha maintenance, repair, lower unit, and rebuild parts Find the Correct Outboard Part
Not sure which part fits your engine? Start with the engine manufacturer, horsepower, model number, serial number, and year whenever available.
Our OEM parts lookup lets you view factory parts diagrams and identify the original part number for many popular outboard engines. Once you have the OEM number, search Pro Marine to find available OEM and aftermarket replacement options.
Use Our OEM Parts Lookup »Shop Outboard Parts by Engine System
Outboard engines use several interconnected systems. Select your manufacturer above to browse the exact categories available for your engine, including the following common repair and maintenance areas.
Common Outboard Problems and Where to Start
- Engine overheating: inspect the water pump, impeller, thermostat, pressure-control components, cooling passages, and engine anodes.
- Hard starting or rough idle: check fuel delivery, carburetor or injector operation, spark plugs, ignition components, filters, and intake sealing.
- Weak spark or no spark: test ignition coils, stators, switch boxes or ignition modules, sensors, wiring, grounds, and related electrical components.
- Low compression or poor power: inspect pistons, rings, cylinder condition, head and powerhead gaskets, bearings, and other internal engine components.
- Milky gear lube: inspect prop shaft, driveshaft, shift shaft, bearing carrier, and other lower unit seals for water intrusion.
- Lower unit or gearcase noise: inspect bearings, gears, clutch components, shafts, and gear lube condition before continued operation.
- Trim or steering problems: inspect hydraulic fluid level, seals, hoses, trim motors, pumps, steering cylinders, and mechanical connections.
Why Buy Outboard Parts from Pro Marine USA?
- OEM and aftermarket replacement options for major outboard engine brands.
- Marine engine parts for routine maintenance, professional repair, and complete rebuild projects.
- OEM diagram and part-number lookup tools to help identify the correct component before ordering.
- Dealer pricing available for qualified marine repair businesses and dealers.
- Large selection of service kits, engine parts, lower unit components, fuel system parts, electrical parts, steering, and rigging products.
- Same-day weekday shipping available on qualifying in-stock orders placed before the shipping cutoff.
OEM and Aftermarket Outboard Parts
OEM parts are supplied by the original engine manufacturer and are designed for the specific engine application. Aftermarket parts are replacement components produced by independent marine parts manufacturers and may provide additional availability or value for many common repairs.
Pro Marine carries both genuine OEM parts and quality aftermarket replacement parts for many outboard maintenance, repair, and rebuild applications. Always confirm fitment using the engine model, serial number, horsepower, year range, or OEM part number when available.
Frequently Asked Questions
How do I find the correct parts for my outboard motor?
Start by identifying the engine manufacturer, horsepower, model number, serial number, and year. Select the manufacturer above to browse by engine system, or use the OEM parts lookup to locate the original part number from a factory diagram.
Can I search Pro Marine by OEM part number?
Yes. If you already have the OEM part number, enter it into the Pro Marine site search to locate available OEM and aftermarket replacement options. If you do not know the part number, use the OEM parts lookup first.
What information should I have before ordering an outboard part?
Have the engine manufacturer, horsepower, model number, serial number, and year whenever possible. An OEM part number from the original component or parts diagram is especially helpful because visually similar parts may fit different engine families.
What is the difference between OEM and aftermarket outboard parts?
OEM parts come from the original engine manufacturer. Aftermarket parts are replacement components manufactured by other marine parts companies for compatible applications. Pro Marine carries both OEM and aftermarket options across many common outboard engine systems.
Are aftermarket outboard motor parts reliable?
Quality aftermarket marine parts are commonly used for maintenance, professional repair, and engine rebuilding. The best option depends on the application, manufacturer, availability, and customer preference.
Do you carry parts for older outboard motors?
Yes. Pro Marine carries parts for many older Mercury, Mariner, Johnson, Evinrude, Chrysler, Force, Yamaha, Honda, Suzuki, Nissan, and Tohatsu outboards. Availability varies by engine family and component.
What outboard parts are commonly replaced during routine maintenance?
Common maintenance items include engine oil, oil filters, fuel filters, spark plugs, water pump impellers, complete water pump kits, thermostats, gear lube, drain plug seals, anodes, and manufacturer-specific service kit components.
Fitment Tip: Outboard parts can vary by model, serial range, horsepower, and production year. Confirm the OEM part number or engine identification information whenever possible before ordering.
FK10023
FK10287
F10023
818764
8M0028376
803631T
89984B1
89984B3
89984T3
899841
899843
93210-12M70-00
93210-48MJ9-00
93210-48214-00
15710-65D00
34880
5033708
68V-13761-00-00
68V-8A360-00-00
Genuine Yamaha OEM Intake Valve Stem Seal
Yamaha F75-F115 Intake Valve Stem Seal - OEM K0A-A3721-00-00
The Yamaha K0A-A3721-00-00 Intake Valve Stem Seal is a genuine OEM replacement seal for select Yamaha four-stroke outboard cylinder heads.
Verified applications include select F75, F80, F90, F100, F115 and LF115 Yamaha four-stroke engines.
Pro Marine also stocks an aftermarket replacement, A3721, along with the matching exhaust valve seals, valve spring, intake valve and exhaust valve used during cylinder-head rebuilding.
OEM Number: K0A-A3721-00-00
Application: Intake Valve Stem
Engine Families: Yamaha F75-F115 and LF115
OEM Number
| Brand / Type | Part Number |
|---|---|
| Yamaha OEM | K0A-A3721-00-00 |
| Pro Marine Aftermarket Option | A3721 |
Yamaha Outboard Fitment
| Engine Family | Verified Applications |
|---|---|
| F75 |
F75TLRB - 2003 F75TLRC - 2004 F75TLRD - 2005 F75LA / F75LA_0112 - 2006-Present F75TLR / F75TLR_041 - 2006-Present |
| F80 |
F80TLRX / F80TXRX - 1999 F80TLRY / F80TXRY - 2000 F80TLRZ - 2001 F80TJRA / F80TLRA - 2002 F80TJRB / F80TLRB - 2003 |
| F90 |
F90TJRB / F90TLRB - 2003 F90TJRC / F90TLRC - 2004 F90TJRD / F90TLRD / F90TXRD - 2005 F90JA / F90JA_0112 - 2006-Present F90LA / F90LA_0112 - 2006-Present F90TJR / F90TJR_041 - 2006-Present F90TLR / F90TLR_041 - 2006-Present F90TXR / F90TXR_041 - 2006-Present F90XA / F90XA_0112 - 2006-Present |
| F100 |
F100TLRX / F100TXRX - 1999 F100TLRY / F100TXRY - 2000 F100TLRZ / F100TXRZ - 2001 F100TLRA / F100TXRA - 2002 F100TLRB / F100TXRB - 2003 |
| F115 - Early |
F115TLRY / F115TXRY - 2000 F115TLRZ / F115TXRZ - 2001 F115TJRA / F115TLRA / F115TXRA - 2002 F115TJRB / F115TLRB / F115TXRB - 2003 F115TJRC / F115TLRC / F115TXRC - 2004 F115TJRD / F115TLRD / F115TXRD - 2005 |
| F115 - Later | F115JA, F115LA, F115TJR, F115TLR, F115TXR and F115XA applications from 2006-Present, including supplied 011, 061, 04 and 0405-0411 suffix variants. |
| LF115 |
LF115TXRY - 2000 LF115TXRZ - 2001 LF115TXRA - 2002 LF115TXRB - 2003 LF115TXRC - 2004 LF115TXRD - 2005 LF115TXR / LF115TXR_0 / 0405-0407 - 2006-Present LF115XA / LF115XA_01 / LF115XA_06 - 2006-Present |
Verify the complete Yamaha model number before ordering. Yamaha used different cylinder-head and valve-train components across similar horsepower families.
Confirm that your engine application calls for K0A-A3721-00-00.
Aftermarket Pro Marine Option
Pro Marine Intake Valve Stem Seal - A3721
Pro Marine aftermarket replacement for the compatible Yamaha OEM intake valve stem seal application.
Brand: Pro Marine
Type: Intake Valve Stem Seal
Related Cylinder Head Rebuild Parts
Pro Marine Valve Spring - 67F-12114P
Replacement valve spring for compatible Yamaha F75-F115 four-stroke cylinder heads.
OEM: 67F-12114-00-00
View Valve Spring
Yamaha OEM Exhaust Valve Stem Seal
Genuine Yamaha OEM exhaust-side valve stem seal for compatible four-stroke cylinder heads.
Brand: Yamaha OEM
View OEM Exhaust Valve Seal
Pro Marine Exhaust Valve Stem Seal - A3722
Aftermarket exhaust valve stem seal for compatible Yamaha four-stroke engines.
Brand: Pro Marine
View Pro Marine Exhaust Seal
Pro Marine Intake Valve - 68V-12111P
Length: 96.9mm
Head Diameter: 29mm
Replacement intake valve for compatible Yamaha four-stroke cylinder-head rebuilds.
View Intake Valve
Pro Marine Exhaust Valve - 68V-12121P
Length: 99.3mm
Head Diameter: 23.9mm
Replacement exhaust valve for compatible Yamaha four-stroke cylinder-head rebuilds.
View Exhaust ValveValve Train Service Components
| Component | OEM / Aftermarket Option |
|---|---|
| Intake Valve Stem Seal | Yamaha OEM K0A-A3721-00-00 / Pro Marine A3721 |
| Exhaust Valve Stem Seal | Yamaha OEM K0A-A3722 / Pro Marine A3722 |
| Valve Spring | Pro Marine 67F-12114P |
| Intake Valve | Pro Marine 68V-12111P |
| Exhaust Valve | Pro Marine 68V-12121P |
What This Part is Used For
The intake valve stem seal fits around the intake valve stem and helps control the amount of engine oil that passes between the valve stem and valve guide.
The seal must allow enough lubrication for the valve stem and guide while limiting excessive oil from entering the intake port and combustion chamber.
Symptoms of a Worn Valve Stem Seal
Valve stem seals can harden, wear or become damaged with age and heat. Excessive oil passing the seal can contribute to oil consumption and combustion-chamber deposits.
Valve seals should be inspected whenever the cylinder head is disassembled or the valves are removed.
When to Replace Valve Stem Seals
- During a complete cylinder-head rebuild
- When replacing intake or exhaust valves
- When valve guides are serviced
- If seals are hardened, cracked or damaged
- When excessive oil consumption is traced to the cylinder head
- After overheating or severe cylinder-head damage
- During a complete powerhead overhaul
Inspect These Parts During Valve Seal Replacement
- Intake valve stems
- Exhaust valve stems
- Valve guides
- Valve seats
- Valve springs
- Valve spring retainers
- Valve keepers
- Camshaft lobes
- Camshaft journals
- Cylinder-head sealing surface
Shop Yamaha Engine Rebuild Parts by Model
Pro Marine stocks pistons, piston rings, bearings, cylinder sleeves, valves, valve stem seals, gaskets and other internal Yamaha four-stroke engine components.
Shop Yamaha Engine Rebuild Parts by Model
Key Features
- Genuine Yamaha OEM intake valve stem seal
- OEM number K0A-A3721-00-00
- Fits select Yamaha F75 applications
- Fits select Yamaha F80 applications
- Fits select Yamaha F90 applications
- Fits select Yamaha F100 applications
- Fits extensive Yamaha F115 applications
- Fits Yamaha LF115 applications
- Pro Marine A3721 aftermarket option linked above
- Matching exhaust valve seals linked above
- Valve spring linked above
- Replacement intake and exhaust valves linked above
FAQ
What is the Yamaha OEM number for this intake valve seal?
The OEM number is K0A-A3721-00-00.
Is this a genuine Yamaha part?
Yes. This listing is for the Yamaha OEM intake valve stem seal.
Do you have an aftermarket version?
Yes. The Pro Marine A3721 aftermarket intake valve stem
seal is linked above.
Does this fit Yamaha F115?
Yes. The supplied fitment includes extensive F115 applications from
early engines through later model variants.
Does this seal fit Yamaha F75, F80, F90 and F100?
Yes. Select applications from each of those engine families are included
in the verified fitment above.
Does this fit LF115 engines?
Yes. Multiple LF115 applications are included in the supplied fitment.
Do you stock the exhaust valve seal?
Yes. Both the Yamaha OEM K0A-A3722 and
Pro Marine A3722 exhaust valve seals are linked above.
Do you have the valves for these engines?
Yes. The 68V-12111P intake valve and
68V-12121P exhaust valve are linked above.
Do you stock the valve spring?
Yes. The Pro Marine 67F-12114P valve spring is linked above.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 in the continental U.S.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1-5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Parts must be new, unused and in original packaging.
- Installed parts are not returnable.
- Return authorization is required before returning parts.
Need help verifying fitment?
Contact Pro Marine
Phone: 941-721-3000
Searchable Part Numbers & Terms
K0A-A3721-00-00, K0AA37210000, K0A-A3721, Yamaha intake valve seal, Yamaha intake valve stem seal, Yamaha OEM valve seal, Yamaha F75 valve seal, Yamaha F80 valve seal, Yamaha F90 valve seal, Yamaha F100 valve seal, Yamaha F115 valve seal, Yamaha LF115 valve seal, F115 intake valve seal, F115 valve stem seal, A3721, Pro Marine A3721, K0A-A3722, A3722, Yamaha exhaust valve seal, 67F-12114P, 67F-12114-00-00, Yamaha valve spring, 68V-12111P, Yamaha intake valve, 68V-12121P, Yamaha exhaust valve, Yamaha F115 cylinder head rebuild, Yamaha valve train parts, Yamaha engine rebuild parts
Pro Marine Aftermarket Exhaust Valve Stem Seal
Yamaha F75-F115 Exhaust Valve Stem Seal - Pro Marine A3722
The Pro Marine A3722 Exhaust Valve Stem Seal is an aftermarket replacement for select Yamaha four-stroke outboard cylinder heads using Yamaha OEM K0A-A3722-00-00.
Verified applications include select F75, F80, F90, F100, F115 and LF115 Yamaha four-stroke engines.
Pro Marine also stocks the genuine Yamaha OEM version, plus the matching intake valve seals, valve spring, intake valve and exhaust valve used during cylinder-head rebuilding.
Pro Marine: A3722
Yamaha OEM: K0A-A3722-00-00
Application: Exhaust Valve Stem Seal
OEM & Cross Reference Numbers
| Brand / Type | Part Number |
|---|---|
| Pro Marine | A3722 |
| Yamaha OEM | K0A-A3722-00-00 |
Yamaha Outboard Fitment
| Engine Family | Verified Applications |
|---|---|
| F75 |
F75TLRB - 2003 F75TLRC - 2004 F75TLRD - 2005 F75LA / F75LA_0112 - 2006-Present F75TLR / F75TLR_041 - 2006-Present |
| F80 |
F80TLRX / F80TXRX - 1999 F80TLRY / F80TXRY - 2000 F80TLRZ - 2001 F80TJRA / F80TLRA - 2002 F80TJRB / F80TLRB - 2003 |
| F90 |
F90TJRB / F90TLRB - 2003 F90TJRC / F90TLRC - 2004 F90TJRD / F90TLRD / F90TXRD - 2005 F90JA / F90JA_0112 - 2006-Present F90LA / F90LA_0112 - 2006-Present F90TJR / F90TJR_041 - 2006-Present F90TLR / F90TLR_041 - 2006-Present F90TXR / F90TXR_041 - 2006-Present F90XA / F90XA_0112 - 2006-Present |
| F100 |
F100TLRX / F100TXRX - 1999 F100TLRY / F100TXRY - 2000 F100TLRZ / F100TXRZ - 2001 F100TLRA / F100TXRA - 2002 F100TLRB / F100TXRB - 2003 |
| F115 - 2000-2005 |
F115TLRY / F115TXRY - 2000 F115TLRZ / F115TXRZ - 2001 F115TJRA / F115TLRA / F115TXRA - 2002 F115TJRB / F115TLRB / F115TXRB - 2003 F115TJRC / F115TLRC / F115TXRC - 2004 F115TJRD / F115TLRD / F115TXRD - 2005 |
| F115 - Later Models | F115JA, F115LA, F115TJR, F115TLR, F115TXR and F115XA applications from 2006-Present, including supplied 011, 061, 04 and 0405-0411 suffix variants. |
| LF115 |
LF115TXRY - 2000 LF115TXRZ - 2001 LF115TXRA - 2002 LF115TXRB - 2003 LF115TXRC - 2004 LF115TXRD - 2005 LF115TXR / LF115TXR_0 / 0405-0407 - 2006-Present LF115XA / LF115XA_01 / LF115XA_06 - 2006-Present |
Verify the complete Yamaha model number before ordering. Yamaha used different cylinder-head and valve-train components across similar horsepower families.
Confirm that the engine application calls for K0A-A3722-00-00.
Genuine Yamaha OEM Option
Yamaha OEM Exhaust Valve Stem Seal - K0A-A3722-00-00
Prefer genuine Yamaha? Pro Marine also stocks the OEM exhaust valve stem seal for the same compatible applications.
Brand: Yamaha OEM
OEM Number: K0A-A3722-00-00
Related Cylinder Head Rebuild Parts
Pro Marine Valve Spring - 67F-12114P
Replacement valve spring for compatible Yamaha F75-F115 four-stroke cylinder heads.
OEM: 67F-12114-00-00
Mercury Cross Reference: 804131
Yamaha OEM Intake Valve Stem Seal
Matching genuine Yamaha intake-side valve stem seal for compatible four-stroke cylinder heads.
OEM: K0A-A3721-00-00
View OEM Intake Valve Seal
Pro Marine Intake Valve Stem Seal - A3721
Pro Marine aftermarket intake valve stem seal for compatible Yamaha four-stroke applications.
Replaces: K0A-A3721-00-00
View Pro Marine Intake Seal
Pro Marine Intake Valve - 68V-12111P
Length: 96.9mm
Head Diameter: 29mm
Replacement intake valve for compatible Yamaha four-stroke cylinder-head rebuilds.
View Intake Valve
Pro Marine Exhaust Valve - 68V-12121P
Length: 99.3mm
Head Diameter: 23.9mm
Replacement exhaust valve for compatible Yamaha four-stroke cylinder-head rebuilds.
View Exhaust ValveValve Train Service Components
| Component | OEM / Aftermarket Option |
|---|---|
| Exhaust Valve Stem Seal | Pro Marine A3722 / Yamaha OEM K0A-A3722-00-00 |
| Intake Valve Stem Seal | Pro Marine A3721 / Yamaha OEM K0A-A3721-00-00 |
| Valve Spring | Pro Marine 67F-12114P |
| Intake Valve | Pro Marine 68V-12111P |
| Exhaust Valve | Pro Marine 68V-12121P |
What This Part is Used For
The exhaust valve stem seal fits around the exhaust valve stem and helps control oil movement between the valve stem and valve guide.
The seal allows the valve stem and guide to receive the lubrication they require while limiting excess oil from traveling through the guide and entering the exhaust port or combustion chamber.
Because exhaust-side components operate under high temperatures, the condition of the valve stem seal is especially important during a cylinder-head rebuild.
Why Exhaust Valve Stem Seals Matter
Valve stem seals are continually exposed to engine heat and repeated operating cycles. Over time, a seal may harden, crack, wear or lose its ability to properly control oil.
A deteriorated valve seal can contribute to excessive oil entering the combustion chamber, oil consumption and carbon deposits.
When to Replace Exhaust Valve Stem Seals
- During a complete cylinder-head rebuild
- When replacing an exhaust valve
- When valve guides are being serviced
- If the existing seal is hardened, cracked or damaged
- When excessive oil usage is traced to the cylinder head
- After overheating or valve-train damage
- During a complete powerhead overhaul
Inspect These Components at the Same Time
- Exhaust valve
- Intake valve
- Intake valve stem seals
- Valve guides
- Valve seats
- Valve springs
- Valve spring retainers
- Valve keepers
- Camshaft lobes and journals
- Cylinder-head sealing surface
Shop Yamaha Engine Rebuild Parts by Model
Pro Marine stocks pistons, piston rings, crankshaft main bearings, connecting rod bearings, cylinder sleeves, valves, valve stem seals, gaskets and other internal Yamaha four-stroke engine components.
Yamaha Outboard Engine Rebuild Parts by Model
Browse Yamaha engine rebuild components by horsepower and engine family to find compatible pistons, rings, bearings, sleeves, valves and gaskets.
Key Features
- Pro Marine aftermarket exhaust valve stem seal
- Pro Marine part number A3722
- Replaces Yamaha K0A-A3722-00-00
- Fits select Yamaha F75 applications
- Fits select Yamaha F80 applications
- Fits select Yamaha F90 applications
- Fits select Yamaha F100 applications
- Fits extensive Yamaha F115 applications
- Fits Yamaha LF115 applications
- Genuine Yamaha OEM exhaust seal available as an alternate
- OEM and Pro Marine intake valve stem seals linked above
- Valve spring linked above
- Pro Marine intake and exhaust valves linked above
FAQ
What Yamaha OEM number does Pro Marine A3722 replace?
A3722 replaces Yamaha K0A-A3722-00-00.
Is A3722 a Yamaha OEM part?
No. A3722 is the Pro Marine aftermarket version.
Can I buy the genuine Yamaha version?
Yes. The Yamaha OEM K0A-A3722-00-00 exhaust valve stem
seal is linked above.
Does A3722 fit Yamaha F115?
Yes. The supplied fitment includes extensive Yamaha F115 applications
from early engines through later model variants.
Does this fit Yamaha F75, F80, F90 and F100?
Yes. Select models from each of those Yamaha four-stroke families are
included in the fitment above.
Does A3722 fit Yamaha LF115?
Yes. Multiple LF115 applications are included.
Do you stock the intake valve stem seal?
Yes. Pro Marine stocks both the A3721 aftermarket intake seal
and Yamaha OEM K0A-A3721-00-00.
Do you stock the exhaust valve?
Yes. The Pro Marine 68V-12121P exhaust valve is linked above.
Do you stock the intake valve?
Yes. The Pro Marine 68V-12111P intake valve is linked above.
Do you stock the valve spring?
Yes. The Pro Marine 67F-12114P valve spring is linked above.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 in the continental U.S.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1-5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Parts must be new, unused and in original packaging.
- Installed parts are not returnable.
- Return authorization is required before returning parts.
Need help verifying fitment?
Contact Pro Marine
Phone: 941-721-3000
Searchable Part Numbers & Terms
A3722, Pro Marine A3722, K0A-A3722-00-00, K0AA37220000, K0A-A3722, Yamaha exhaust valve seal, Yamaha exhaust valve stem seal, aftermarket Yamaha valve seal, Yamaha F75 valve seal, Yamaha F80 valve seal, Yamaha F90 valve seal, Yamaha F100 valve seal, Yamaha F115 valve seal, Yamaha LF115 valve seal, F115 exhaust valve seal, F115 valve stem seal, K0A-A3721-00-00, K0A-A3721, A3721, Yamaha intake valve seal, 67F-12114P, 67F-12114-00-00, Yamaha valve spring, 68V-12111P, Yamaha intake valve, 68V-12121P, Yamaha exhaust valve, Yamaha F115 cylinder head rebuild, Yamaha valve train parts, Yamaha engine rebuild parts
68F-13764-00-00