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New Drive Shaft Nut Wrench Service Tool Compatible With 2006-2021 Yamaha F300 F350 5.3L V8 4-Stroke

983-144A1
OEM PART NUMBERS:
• Yamaha: 90890-06833 / 90890 06833
• Yamaha Special Tool: YB-06833 / YB06833
• MPN: 983-144

SPECIFICATIONS:
• Type: Drive Shaft Ring Nut Wrench (Spanner Wrench)
• Function: Removes/installs lower unit drive shaft ring nut
• Application: Yamaha F300 / F350 V8 5.3L 4-Stroke Outboards
• Use Case: Lower Unit Rebuild / Service / Seal Replacement
• Material: Premium-Quality Steel Construction
• Design: Yamaha V8 5.3L Specific
• Year Range: 2006-2021 (F300/F350 V8 5.3L production era)
• Tool Category: Professional Marine Service Tool
• Factory Equivalent: Yamaha YB-06833 Special Service Tool
• Condition: New

APPLICATIONS:
• Yamaha F300 V8 4-Stroke 5.3L 300HP Outboard (2006-2021)
• Yamaha F350 V8 4-Stroke 5.3L 350HP Outboard (2006-2021)
• Yamaha F300XCA / F300NCA / F300NSB / F300UCA Variants
• Yamaha F350XCC / F350NCC / F350UCC / F350NCB Variants
• 32-Valve DOHC V8 Architecture (Both Standard & Counter-Rotation)
• 25-inch and 30-inch Transom Configurations
• DOES NOT FIT Yamaha F425 XTO Offshore (5.6L V8, different nut)
• DOES NOT FIT Yamaha V6 outboards (F250/F225/F200/F175/F150)
• DOES NOT FIT Yamaha 4-cylinder outboards (F115/F90/F75)
• DOES NOT FIT Yamaha 2-Stroke outboards

PRODUCT NOTICE:
As a parts distributor we mostly sell aftermarket parts (any OEM parts would be noted as such). Aftermarket parts are not sourced from the original vehicle or equipment manufacturer, but are designed to function the same as - if not better than - the original. All parts sold are new.

WARNING - This product may expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

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Description

YAMAHA F300 / F350 V8 5.3L 4-STROKE OUTBOARD APPLICATIONS (2006-2021):

YAMAHA F300 V8 5.3L (300 HP):
• Yamaha F300 V8 4-Stroke 5.3L Outboard 300HP (2006-2021)
• Yamaha F300XCA / F300NCA / F300NSB / F300UCA Models (2006-2021)
• Yamaha F300 Offshore V8 with XTO-E Reverse Thrust Propeller (2014-2021)

YAMAHA F350 V8 5.3L (350 HP):
• Yamaha F350 V8 4-Stroke 5.3L Outboard 350HP (2006-2021)
• Yamaha F350XCC / F350NCC / F350UCC / F350NCB Models (2006-2021)
• Yamaha F350 Offshore V8 Single / Twin / Triple Applications (2006-2021)

ENGINE SPECIFICATIONS:
• Engine: Yamaha 90-Degree V8 4-Stroke
• Displacement: 5.3 Liter (5,330cc / 325 CID)
• Cylinders: 8 (V-Configuration, Two Banks of 4)
• Valvetrain: 32-Valve DOHC (Dual Overhead Cam)
• Fuel System: EFI (Electronic Fuel Injection)
• Cooling: Water-Cooled (Open Loop Marine)
• Transom Options: 25-inch (XCA) / 30-inch (UCA)
• Rotation: Standard (Right-Hand) or Counter-Rotation
• Power: 300HP (F300) / 350HP (F350)

HISTORICAL CONTEXT:
• Yamaha F350 launched 2007 as Yamaha's FIRST V8 outboard
• F300 added later with same 5.3L V8 platform (detuned)
• 5.3L V8 was Yamaha's top-tier offshore outboard 2007-2021
• Yamaha F425 XTO launched 2018 with LARGER 5.6L V8
• F425 uses different drive shaft nut design (not this tool)
• Production continued through 2021+ model years

TOOL FUNCTION:
• Removes and installs the lower unit drive shaft ring nut
• Yamaha calls this nut the 'Drive Shaft Ring Nut' or 'Drive Shaft Nut'
• Critical for lower unit disassembly on F300/F350
• Used during gear oil seal replacement
• Used during pinion gear service
• Used during lower unit bearing rebuild
• Factory-equivalent to Yamaha Special Tool YB-06833

TOOL SPECIFICATIONS:
• Type: Drive Shaft Ring Nut Wrench (Spanner Wrench)
• Design: Yamaha V8 5.3L Specific
• Material: Premium-Quality Steel Construction
• Use Case: Professional Lower Unit Service / Rebuild
• Category: Professional Marine Service Tool

OEM PART NUMBERS:
• Yamaha: 90890-06833 / 90890 06833 (90890 series = Yamaha Factory Tool)
• Yamaha Special Tool: YB-06833 / YB06833 (YB = Yamaha Branded Special Tool)
• MPN: 983-144

CRITICAL FITMENT WARNINGS:
• Fits ONLY Yamaha F300 and F350 V8 5.3L outboards
• DOES NOT FIT Yamaha F425 XTO Offshore (5.6L V8, different nut design)
• DOES NOT FIT Yamaha F250/F225/F200/F175/F150 V6 outboards
• DOES NOT FIT Yamaha F115/F90/F75 4-cylinder outboards
• DOES NOT FIT Yamaha 2-Stroke outboards (different gear case)
• Verify your engine model and displacement BEFORE ordering
• Professional service tool — knowledge of Yamaha service procedures required

Details

Shipping Information

  • Item Requires Shipping
  • 4.0 lbs.
  • W4.0000” x H4.0000” x L8.0000”
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