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New Crankshaft Main Bearing And Seal Kit Compatible With 2014-2020 Yamaha Yz125 And 2020 Yz125x

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K045A1
OEM PART NUMBERS:
• Yamaha: 93306-37204-00 (Crankshaft Main Bearing — primary, 2x required per engine)
• Yamaha: 93102-20485-00 (Crankshaft Oil Seal — primary)
• Yamaha: 93102-22419-00 (Crankshaft Oil Seal — alternate part number)
• Yamaha: 93102-30008-00 (Crankshaft Oil Seal — alternate, 30x44x8mm right side)
• Catalog Kit Reference: K045

SPECIFICATIONS:
• Type: Crankshaft Main Bearing and Oil Seal Kit
• Application: Bottom-End Rebuild / Crankshaft Replacement
• Engine Coverage: Yamaha YZ125 / YZ125X 2-Stroke Single-Cylinder Liquid-Cooled
• Engine Displacement: 124cc
• Bore × Stroke: 54.0mm × 54.5mm
• Engine Code: 1C3 / 5XF (early) / CW01 (later)
• Year Range: YZ125 2005-2020 (16-Year Production Run) / YZ125X 2020
• Cylinder Configuration: Single-Cylinder Inline 2-Stroke Liquid-Cooled with Reed Valve Induction and YPVS Exhaust Valve
• Transmission: 6-Speed
• Induction: Reed Valve with Yamaha Power Valve System (YPVS)
• Kit Contents: 2x Crankshaft Main Bearings (Prelubed and Packaged with Waterproof Grease), 2x Crankshaft Oil Seals (Left and Right) with Sealing Lip
• Models Covered: Yamaha YZ125 Motocross (2005-2020) and YZ125X Cross-Country (2020)
• Use: Compatible with Yamaha OEM and Hot Rods aftermarket crankshafts
• Condition: New

APPLICATIONS:
• Yamaha YZ125 2-Stroke 124cc Single-Cylinder Liquid-Cooled Motocross (2005-2020)
• Yamaha YZ125X 2-Stroke 124cc Single-Cylinder Liquid-Cooled Cross-Country (2020)
• 16-year single-generation bottom-end production run
• DOES NOT FIT 2004 and Earlier Yamaha YZ125 — different crankshaft bearings required

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 YZ125 2-STROKE MOTOCROSS — 124cc Single-Cylinder Liquid-Cooled (2005-2020):
• Yamaha YZ125 124cc 2-Stroke Single-Cylinder Liquid-Cooled Motocross (2005, LAUNCH Year of This Bottom-End Generation — Major Engine Update)
• Yamaha YZ125 124cc 2-Stroke Single-Cylinder Liquid-Cooled Motocross (2006-2010, Early Production Era)
• Yamaha YZ125 124cc 2-Stroke Single-Cylinder Liquid-Cooled Motocross (2011-2015, Mid-Production Era)
• Yamaha YZ125 124cc 2-Stroke Single-Cylinder Liquid-Cooled Motocross (2016-2020, Modern Production Era)
• Yamaha YZ125 54.0mm Bore × 54.5mm Stroke 2-Stroke Reed Valve Induction with YPVS Race-Spec Motocross

YAMAHA YZ125X CROSS-COUNTRY VARIANT (2020):
• Yamaha YZ125X 124cc 2-Stroke Single-Cylinder Liquid-Cooled Cross-Country (2020, LAUNCH Year — Off-Road / Closed-Course Variant)
• Same bottom-end engine architecture as the YZ125 motocross

SPECIFIC MODEL YEARS COVERED:
• Yamaha YZ125 2005 (Launch Year of This Bottom-End Generation)
• Yamaha YZ125 2006-2010 (Early Production)
• Yamaha YZ125 2011-2015 (Mid-Production)
• Yamaha YZ125 2016-2020 (Modern Production Era)
• Yamaha YZ125X 2020 (Cross-Country Variant Launch Year)

NOTES:
• Compatible with Yamaha OEM crankshafts and aftermarket Hot Rods replacement crankshafts
• Same kit fits BOTH the YZ125 motocross (2005-2020) AND YZ125X cross-country (2020) — same engine architecture
• 2005 was a major engine update year — DOES NOT FIT 2004 and earlier YZ125 (different bottom-end)
• This is the LONGEST single-generation bottom-end run in YZ125 history (16 years, 2005-2020)
• Quality alternative to expensive Yamaha OEM main bearings and crankshaft seals
• Recommended for any bottom-end rebuild, crankshaft replacement, or seal-out repair
• Bearings prelubed and packaged with waterproof grease; crank seals feature sealing lip designed to reduce crank pin wear
• 6-speed transmission, reed valve induction with YPVS (Yamaha Power Valve System)
• Engine codes: 1C3 / 5XF (early production), CW01 (later production)

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  • Item Requires Shipping
  • 2.0 lbs.
  • W9.0000” x H0.8000” x L12.0000”
  • Free Shipping!

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