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Genuine Yamaha OEM Timing Belt Tensioner
Yamaha F200-F450 Timing Belt Tensioner Assembly - 6P2-11590-05-00
The Yamaha 6P2-11590-05-00 Timing Belt Tensioner Assembly is a genuine Yamaha OEM tensioner used across a broad range of Yamaha four-stroke outboards.
Verified applications include select F200, F225, F250, F300 and F350 outboards, matching LF-series counter-rotation engines, and later Yamaha XF425 and XF450 XTO Offshore families.
This current Yamaha tensioner supersedes earlier 6P2-11590-00-00, 6P2-11590-01-00, 6P2-11590-02-00, 6P2-11590-03-00 and 6P2-11590-04-00 assemblies.
OEM & Superseded Part Numbers
| Brand / Type | Part Number |
|---|---|
| Yamaha OEM | 6P2-11590-00-00 |
| Yamaha OEM | 6P2-11590-01-00 |
| Yamaha OEM | 6P2-11590-02-00 |
| Yamaha OEM | 6P2-11590-03-00 |
| Yamaha OEM | 6P2-11590-04-00 |
| Yamaha OEM / Current | 6P2-11590-05-00 |
Yamaha Fitment
| Engine Family | Verified Applications |
|---|---|
| Yamaha F200 / LF200 | F200XA, F200XA_011, F200XA_0119, F200XA_051, LF200XA, LF200XA_01, LF200XA_0112_, LF200XA_0119, LF200XA_05 and LF200XA_0511. |
| Yamaha F225 | F225TLR, F225XA, F225XA-201, F225XA_011 and F225XA_051. |
| Yamaha F250 / LF250 | F250BTUR, F250BTXR, F250TUR, F250TXR, F250UA, F250XA, LF250BTUR, LF250BTXR, LF250TUR, LF250TXR, LF250UA and LF250XA, including related suffix variants. |
| 2005 F250 Applications | F250TURD, F250TXRD, LF250TURD and LF250TXRD. |
| Yamaha F300 / LF300 | F300TUR, F300TXR, LF300TUR and LF300TXR. |
| Yamaha F350 / LF350 | F350AET1U, F350AET1X, F350TUR, F350TXR, F350UCA, F350XCA, F350NCC, F350NCC2, F350UCB, F350UCC, F350XCB, F350XCC, FL350AET1U, FL350AET1X, LF350TUR, LF350TXR, LF350UCA, LF350XCA, LF350UCB, LF350UCC, LF350XCB and LF350XCC. |
| Yamaha XF425 XTO Offshore | XF425NSA, XF425NSA2, XF425NSA7, XF425NSB, XF425NSB2, XF425NSB7 and related 2018-2023 suffix configurations supplied in the fitment. |
| Yamaha XF450 XTO Offshore | XF450NSA, XF450NSA2, XF450NSA4, XF450XSA, XF450XSA2 and related 2022-2025 suffix configurations supplied in the fitment. |
The same tensioner family is used on multiple Yamaha engine generations, ranging from select F200-F350 four-strokes to the later XF425 and XF450 XTO Offshore engines.
The timing belt itself is not the same for every engine family. Use the belt guide below to select the correct belt for your engine.
Yamaha used different timing-system configurations within similar horsepower ranges. Verify the complete Yamaha model number and confirm that your engine calls for one of the 6P2-11590 tensioner numbers listed above.
Choose the Correct Timing Belt
This tensioner fits several Yamaha engine families, but the correct timing belt depends on the engine. Pro Marine stocks both the F200-F250 belt and the later XF425 / XF450 XTO timing belt kit.
Yamaha F200-F250 Timing Belt - Sierra 18-15132 / 6P2-46241
Timing belt option for compatible F200, F225 and F250 applications using Yamaha 6P2-46241-00-00, 6P2-46241-01-00 or 6P2-46241-02-00.
Use this belt only on the compatible F200-F250 applications listed on the belt page.
Yamaha XF425 / XF450 XTO Timing Belt Kit - 6GR-W4624-00-00
Genuine Yamaha OEM timing belt kit for select XF425 and XF450 XTO Offshore applications.
This kit includes the timing belt and rotor bolts required for the applicable Yamaha XTO timing-system service.
Timing Belt Selection Guide
| Engine Family | Timing Belt Option |
|---|---|
| Select Yamaha F200 / F225 / F250 | Sierra 18-15132 / Yamaha 6P2-46241 Timing Belt |
| Yamaha XF425 / XF450 XTO | Yamaha 6GR-W4624-00-00 Timing Belt Kit with Rotor Bolts |
| F300 / F350 / Other Applications | Verify the correct timing belt using the complete Yamaha model number before ordering. Do not assume either belt above fits solely because this tensioner fits the engine. |
What the Timing Belt Tensioner Does
The timing belt tensioner maintains controlled tension on the engine's timing belt. Proper belt tension keeps the crankshaft and camshafts synchronized so the valves open and close at the correct point in the combustion cycle.
The tensioner must keep the belt controlled as engine speed changes. Excessive looseness, bearing wear or restricted tensioner movement can affect belt tracking and accelerate wear of the timing belt.
Common Signs of a Worn Timing Belt Tensioner
- Abnormal noise from the timing belt area
- Loose or inconsistent timing belt tension
- Tensioner pulley feels rough when rotated
- Bearing noise from the tensioner pulley
- Binding or restricted tensioner movement
- Excessive pulley play
- Timing belt tracking incorrectly
- Excessive belt vibration
- Unusual or accelerated timing belt wear
Why Inspect the Belt and Tensioner Together?
The timing belt and tensioner function as a system. A new timing belt can have a shortened service life if installed with a worn or binding tensioner, while a damaged belt should not be reused simply because the tensioner is being replaced.
Whenever the timing system is opened, inspect the belt, tensioner pulley, tensioner mechanism and related timing components before reassembly.
F200-F250 vs. XTO 425/450 Timing Systems
One reason this tensioner listing can be confusing is that the 6P2-11590-05-00 tensioner fits engines that do not all use the same timing belt.
Select F200-F250 engines use the 6P2-46241 timing belt family, while the XF425 and XF450 XTO applications use the 6GR-W4624-00-00 belt kit. Always match the belt to the exact engine model rather than matching it only to the tensioner.
Key Features and Benefits
- Genuine Yamaha OEM timing belt tensioner
- Current Yamaha part number 6P2-11590-05-00
- Supersedes 6P2-11590-00-00
- Supersedes 6P2-11590-01-00
- Supersedes 6P2-11590-02-00
- Supersedes 6P2-11590-03-00
- Supersedes 6P2-11590-04-00
- Fits select Yamaha F200 and LF200 applications
- Fits select Yamaha F225 applications
- Fits select Yamaha F250 and LF250 applications
- Fits select Yamaha F300 and LF300 applications
- Fits select Yamaha F350 and LF350 applications
- Fits select Yamaha XF425 XTO applications
- Fits select Yamaha XF450 XTO applications
- F200-F250 timing belt linked above
- XF425 / XF450 XTO timing belt kit linked above
FAQ
What Yamaha part numbers does 6P2-11590-05-00 replace?
It supersedes 6P2-11590-00-00, 6P2-11590-01-00,
6P2-11590-02-00, 6P2-11590-03-00 and 6P2-11590-04-00.
Does this tensioner fit Yamaha F200?
Yes. The supplied fitment includes select F200XA and LF200XA applications.
Does it fit Yamaha F225?
Yes. Verified applications include F225TLR and multiple F225XA configurations.
Does it fit Yamaha F250?
Yes. The supplied fitment includes numerous F250 and LF250 TUR, TXR,
BTUR, BTXR, UA and XA applications.
Does it fit Yamaha F300?
Yes. Verified applications include F300TUR, F300TXR,
LF300TUR and LF300TXR.
Does it fit Yamaha F350?
Yes. Numerous F350, LF350 and related configurations are included.
Does this fit Yamaha XF425 XTO?
Yes. The supplied fitment includes numerous XF425NSA and XF425NSB
configurations.
Does it fit Yamaha XF450 XTO?
Yes. The supplied fitment includes numerous XF450NSA and XF450XSA
configurations.
What timing belt fits F200, F225 and F250 engines?
Compatible applications use the
Sierra 18-15132 / Yamaha 6P2-46241 timing belt linked above.
Verify the exact engine model on the belt listing before ordering.
What timing belt fits the Yamaha XF425 and XF450 XTO?
Compatible XF425 and XF450 applications use the genuine Yamaha
6GR-W4624-00-00 timing belt kit, which includes the belt
and rotor bolts.
Does the same timing belt fit every engine that uses this tensioner?
No. This tensioner is used across several engine families,
but those engines do not all use the same timing belt. Select the belt using
the complete engine model.
Should I replace the timing belt when replacing the tensioner?
Inspect the belt whenever the tensioner is serviced. Replace it if it is
cracked, frayed, contaminated, damaged, showing abnormal wear or due for
scheduled replacement.
How should I confirm fitment?
Match the complete Yamaha engine model to the application information and
verify that Yamaha specifies one of the listed
6P2-11590 tensioner numbers.
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 continental U.S.
- Orders ship via UPS, USPS, and FedEx.
- 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 sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
6P2-11590-05-00, Yamaha 6P2-11590-05-00, 6P2-11590-00-00, 6P2-11590-01-00, 6P2-11590-02-00, 6P2-11590-03-00, 6P2-11590-04-00, Yamaha timing belt tensioner, Yamaha tensioner assembly, Yamaha F200 tensioner, Yamaha LF200 tensioner, Yamaha F225 tensioner, Yamaha F250 tensioner, Yamaha LF250 tensioner, Yamaha F300 tensioner, Yamaha LF300 tensioner, Yamaha F350 tensioner, Yamaha LF350 tensioner, Yamaha XF425 tensioner, Yamaha 425 XTO tensioner, XF425NSA tensioner, XF425NSB tensioner, Yamaha XF450 tensioner, Yamaha 450 XTO tensioner, XF450NSA tensioner, XF450XSA tensioner, 6P2-46241, 18-15132, Yamaha F200 timing belt, Yamaha F225 timing belt, Yamaha F250 timing belt, 6GR-W4624-00-00, Yamaha XF425 timing belt, Yamaha XF450 timing belt, Yamaha XTO timing belt
6P2-11590-01-00
6P2-11590-02-00
6P2-11590-03-00
6P2-11590-04-00
6P2-11590-05-00
69J-44514-00-94
6Y8-83500-11-BK
6Y8-83500-11-00
6Y8-83500-20-00
6Y8-83500-21-00
6Y8-83500-22-00
6Y8-83500-23-00
6Y8-83500-24-00
Genuine Yamaha 60° Thermostat for F115 F130 VF115
Genuine Yamaha thermostat 6EK-12411-00-00 is a factory OEM 60°C thermostat for select Yamaha F115, LF115, F130, LF130 and VF115 FourStroke outboards. It regulates cooling-water flow to help the engine warm up correctly and maintain its intended operating temperature.
Genuine Yamaha Factory Replacement
This is the genuine Yamaha OEM thermostat, not an aftermarket replacement. Use it when the applicable Yamaha engine parts diagram specifies thermostat 6EK-12411-00-00.
Compatible Applications
This thermostat fits the following Yamaha outboard families when the engine parts diagram specifies OEM number 6EK-12411-00-00.
| Engine Family | Applicable Models | Catalog Range |
|---|---|---|
| Yamaha F115JB | F115JB and applicable _0120 through _0123 variants | 2006-Present |
| Yamaha F115LB Series | F115LB, F115LB2, F115LB3 and applicable catalog variants | 2006-Present |
| Yamaha F115XB Series | F115XB, F115XB2 and applicable catalog variants | 2006-Present |
| Yamaha LF115XB Series | LF115XB, LF115XB2 and applicable catalog variants | 2006-Present |
| Yamaha F130 and LF130 | F130LA, F130XA and LF130XA | 2006-Present |
| Yamaha VF115LA and VF115LB | VF115LA, VF115LB and applicable -20, _0120, _0121, _0222, _0223 and _0324 variants | 2006-Present |
| Yamaha VF115XA and VF115XB | VF115XA, VF115XB and applicable -20, _0120, _0121, _0222, _0223 and _0324 variants | 2006-Present |
Important Fitment Note
Yamaha model suffixes identify specific production versions and engine configurations. Confirm your complete engine model and verify that the applicable OEM parts diagram calls for thermostat 6EK-12411-00-00. Do not order using horsepower alone.
OEM & Cross Reference Numbers
| Brand | Part Number | Reference Type |
|---|---|---|
| Yamaha OEM | 6EK-12411-00-00 | Genuine OEM part number |
| Mercury | 8M0175396 | Superseded OEM reference |
| Mercury | 8M6010301 | OEM cross reference |
| Mercury | 8M6013870 | OEM cross reference |
What This Part is Used For
The thermostat regulates the flow of cooling water through the engine. It stays closed while the engine is cold to help the powerhead warm up efficiently, then opens as the engine reaches its intended operating temperature.
Proper thermostat operation supports consistent engine temperature, reliable idle quality, efficient combustion and dependable cooling-system performance.
Reasons to Inspect or Replace the Thermostat
A thermostat that remains closed may restrict cooling-water circulation and contribute to overheating.
A thermostat stuck open may prevent the engine from reaching its intended operating temperature.
Thermostats are commonly inspected during water-pump and other cooling-system maintenance.
Corrosion, salt and debris can interfere with thermostat movement and cooling-system performance.
Pro Marine Aftermarket Option Available
Pro Marine 60° Thermostat 6EK-12411P
Looking for a cost-effective alternative? The Pro Marine thermostat fits the same verified applications and replaces Yamaha OEM number 6EK-12411-00-00.
View Pro Marine ThermostatKey Features and Benefits
Factory Yamaha replacement for applications specifying part number 6EK-12411-00-00.
Calibrated to help the listed engines maintain their intended operating temperature.
Fits select Yamaha F115, LF115, F130, LF130 and VF115 FourStroke outboards.
Ideal for owners and technicians who prefer genuine Yamaha cooling-system components.
Frequently Asked Questions
Is this a genuine Yamaha thermostat?
Yes. This is the genuine Yamaha OEM thermostat, part number 6EK-12411-00-00.
What temperature is this thermostat?
This is a 60°C thermostat for the listed Yamaha FourStroke applications.
What Yamaha engines does it fit?
It fits select Yamaha F115, LF115, F130, LF130 and VF115 models whose parts diagrams specify thermostat 6EK-12411-00-00.
Is an aftermarket version available?
Yes. Pro Marine thermostat 6EK-12411P is available as a cost-effective aftermarket alternative.
How should I confirm fitment?
Confirm the complete engine model and verify that the applicable Yamaha OEM parts diagram specifies thermostat 6EK-12411-00-00 before ordering.
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 continental U.S.
- Orders ship via UPS, USPS, and FedEx.
- 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 sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Part Numbers
6EK-12411-00-00, 6EK124110000, 8M0175396, 8M6010301, 8M6013870, Yamaha OEM thermostat, genuine Yamaha thermostat, Yamaha F115 thermostat, Yamaha LF115 thermostat, Yamaha F130 thermostat, Yamaha LF130 thermostat, Yamaha VF115 thermostat, Yamaha V MAX SHO thermostat, 60 degree Yamaha thermostat
8M0175396
8M6010301
8M6013870
90387-08M37-00
Genuine Yamaha OEM XTO Timing Belt Kit
Yamaha XF425 & XF450 XTO Timing Belt with Rotor Bolts - 6GR-W4624-00-00
The Yamaha 6GR-W4624-00-00 Timing Belt Kit is a genuine Yamaha OEM timing-system service part for select XF425 and XF450 XTO Offshore outboards.
This kit is supplied as a timing belt with rotor bolts, making it convenient for major timing-system service on compatible Yamaha XTO engines.
Verified applications include numerous XF425NSA / NSB and XF450NSA / XSA model families, including multiple single-, dual- and multi-engine configuration variants.
OEM Part Number
| Brand / Type | Part Number |
|---|---|
| Yamaha OEM | 6GR-W4624-00-00 |
What is Included
- Yamaha OEM timing belt
- Rotor bolts
Yamaha XTO Fitment
| Engine Family | Verified Applications |
|---|---|
| Yamaha XF425 XTO | XF425NSA, XF425NSA2, XF425NSA7, XF425NSB, XF425NSB2, XF425NSB7 and related configurations. |
| Yamaha XF450 XTO | XF450NSA, XF450NSA2, XF450NSA4, XF450XSA, XF450XSA2 and related configurations. |
Detailed XF425 Model Coverage
- XF425NSA
- XF425NSA_0119
- XF425NSA_0120
- XF425NSA_0418
- XF425NSA2
- XF425NSA2_0119
- XF425NSA2_0120
- XF425NSA2_0418
- XF425NSA7
- XF425NSA7_0119
- XF425NSA7_0120
- XF425NSA7_0418
- XF425NSB
- XF425NSB_0120
- XF425NSB_0121
- XF425NSB_0322
- XF425NSB_0323
- XF425NSB2
- XF425NSB2_0120
- XF425NSB2_0121
- XF425NSB2_0322
- XF425NSB2_0323
- XF425NSB7_0120
- XF425NSB7_0121
- XF425NSB7_0322
Detailed XF450 Model Coverage
- XF450NSA
- XF450NSA_0323
- XF450NSA_0425
- XF450NSA_0524
- XF450NSA_1122
- XF450NSA2
- XF450NSA2_0323
- XF450NSA2_0425
- XF450NSA2_0524
- XF450NSA2_1122
- XF450NSA4
- XF450NSA4_0425
- XF450NSA4_0524
- XF450NSA4_0723
- XF450NSA4_0723_CP
- XF450XSA
- XF450XSA_0323
- XF450XSA_0425
- XF450XSA_0524
- XF450XSA_1122
- XF450XSA2
- XF450XSA2_0323
- XF450XSA2_0425
- XF450XSA2_0524
This timing belt kit is specifically used on select Yamaha XF425 and XF450 XTO Offshore outboards. These engines use different timing-system components than many earlier Yamaha F-series outboards.
Always verify the complete Yamaha engine model before ordering. XF425 and XF450 model suffixes can identify different engine configurations.
Confirm that the application calls for Yamaha 6GR-W4624-00-00.
Matching Yamaha Timing Belt Tensioner
The timing belt tensioner should be inspected whenever the timing belt is serviced. The Yamaha tensioner below is used on select XF425 and XF450 applications covered by this belt kit.
Yamaha OEM Timing Belt Tensioner - 6P2-11590-05-00
Genuine Yamaha OEM timing belt tensioner for compatible Yamaha XF425 and XF450 XTO applications, along with several other Yamaha four-stroke engine families.
If the tensioner shows bearing noise, binding, poor belt control or excessive wear, replace it while the timing system is already apart.
What the Timing Belt Does
The timing belt keeps the crankshaft and camshafts synchronized so the engine's valves operate at the correct point in the combustion cycle. Accurate valve timing is essential for proper engine performance.
On high-output Yamaha XTO engines, the timing system operates under significant load. The belt, tensioner and related timing components should therefore be inspected carefully during scheduled service.
Why Are Rotor Bolts Included?
This Yamaha kit includes the timing belt and rotor bolts required as part of the applicable timing-system service procedure.
Supplying the bolts together with the belt helps ensure the correct service hardware is available when the timing assembly is disassembled.
Common Signs the Timing System Needs Service
- Timing belt has reached its scheduled service interval
- Visible cracking or deterioration
- Frayed or damaged belt edges
- Missing or damaged belt teeth
- Oil or fluid contamination on the belt
- Abnormal noise from the timing-system area
- Loose or inconsistent belt tension
- Worn or noisy timing belt tensioner
Why Inspect the Tensioner During Belt Replacement?
A new timing belt depends on the tensioner to maintain proper belt control. A worn tensioner can allow excessive movement, incorrect tension or premature belt wear.
Whenever replacing the 6GR-W4624-00-00 timing belt, inspect the Yamaha 6P2-11590-05-00 tensioner and related timing components before reassembly.
Key Features and Benefits
- Genuine Yamaha OEM timing belt kit
- Yamaha part number 6GR-W4624-00-00
- Includes timing belt and rotor bolts
- Fits select Yamaha XF425 XTO outboards
- Fits select Yamaha XF450 XTO outboards
- Extensive XF425 NSA / NSB application coverage
- Extensive XF450 NSA / XSA application coverage
- Supports proper crankshaft and camshaft synchronization
- Matching Yamaha timing belt tensioner linked above
FAQ
What comes with Yamaha 6GR-W4624-00-00?
The kit includes the timing belt and rotor bolts.
Does 6GR-W4624-00-00 fit Yamaha XF425 XTO?
Yes. Verified fitment includes numerous XF425NSA, XF425NSA2,
XF425NSA7, XF425NSB, XF425NSB2 and XF425NSB7 configurations.
Does it fit Yamaha XF450 XTO?
Yes. Verified applications include numerous XF450NSA, XF450NSA2,
XF450NSA4, XF450XSA and XF450XSA2 model families.
Is this a genuine Yamaha timing belt?
Yes. This listing is for the genuine Yamaha OEM belt kit.
Does this kit include the tensioner?
No. The timing belt tensioner is sold separately. The compatible
6P2-11590-05-00 Yamaha OEM tensioner is linked above.
What tensioner is used with this belt?
Select XF425 and XF450 applications use Yamaha
6P2-11590-05-00, which is linked above.
Should I replace the tensioner when changing the timing belt?
Inspect it carefully whenever the belt is replaced. Replace the tensioner
if there is bearing noise, roughness, binding, excessive play or improper
belt tension.
How do I confirm fitment?
Match your complete Yamaha XF425 or XF450 model number to the application
list and confirm that Yamaha specifies 6GR-W4624-00-00
for the timing belt kit.
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 continental U.S.
- Orders ship via UPS, USPS, and FedEx.
- 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 sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
6GR-W4624-00-00, Yamaha 6GR-W4624-00-00, Yamaha XTO timing belt, Yamaha XTO timing belt kit, Yamaha timing belt with rotor bolts, Yamaha XF425 timing belt, Yamaha 425 XTO timing belt, XF425NSA timing belt, XF425NSA2 timing belt, XF425NSA7 timing belt, XF425NSB timing belt, XF425NSB2 timing belt, XF425NSB7 timing belt, Yamaha XF450 timing belt, Yamaha 450 XTO timing belt, XF450NSA timing belt, XF450NSA2 timing belt, XF450NSA4 timing belt, XF450XSA timing belt, XF450XSA2 timing belt, Yamaha rotor bolts, XTO rotor bolts, Yamaha timing system, 6P2-11590-05-00, Yamaha XTO timing belt tensioner
701-48345-30-00
703-48345-00-00
703-48345-01-00
6GR-W0078-01-00
6GR-W0078-01-00