

Hero image 0 of New 1Mm Over Piston Kit Fits Yamaha ATV Kodiak 400 1993-1998 1999 4Gb116380000, 0 of 2
New 1Mm Over Piston Kit Fits Yamaha ATV Kodiak 400 1993-1998 1999 4Gb116380000
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Key item features
- Rareelectrical Compatible With Yamaha
- Yamaha Big Bear 400 Yfm400 2Wd — 401Cc 4-Stroke Sohc: • Yamaha Big Bear 400 Yfm400 2Wd 401Cc Air-Cooled Single-Cyl 4-Stroke Sohc (2000-2004) Yamaha Big Bear 400 Yfm400f 4X4 — 401Cc 4-Stroke Sohc: • Yamaha Big Bear 400 Yfm400f 4X4 401Cc Air-Cooled Single-Cyl 4-Stroke Sohc (2000-2006) Yamaha Big Bear 400 Yfm400fb Irs 4X4 — 401Cc Sohc: • Yamaha Big Bear 400 Yfm400fb Irs 4X4 401Cc Air-Cooled Single-Cyl Sohc (2007-2012) Yamaha Big Bear 400 Hunter Edition — 401Cc Sohc: • Yamaha Big Bear 400 Hunter Edition 401Cc Air-Cooled Single-Cyl Sohc (2000-2012) Yamaha Big Bear 400 Exploring Edition Irs — 401Cc Sohc: • Yamaha Big Bear 400 Exploring Edition Irs 401Cc Air-Cooled Sohc (2007) Yamaha Kodiak 400 Yfm400fw 4X4 — 401Cc Sohc: • Yamaha Kodiak 400 Yfm400fw 4X4 401Cc Air-Cooled Single-Cyl Sohc (1993-1999) Engine Specifications: • Engine: Yamaha 401Cc Air-Cooled Single-Cylinder 4-Stroke Sohc • Standard Bore: 83Mm / Stroke: 74Mm • This Kit: 1.00Mm Oversize = 84Mm Bore • Compression Ratio: 8.6:1 Note — Single Cylinder Kit: • Single Cylinder Engine — One Kit Completes Rebuild • Cylinder Must Be Bored And Honed To 84Mm
- Oem Part Numbers: • Yamaha 1Mm Over Piston: 4Gb-11638-00-00 / 4Gb116380000 • Yamaha Standard Piston: 4Gb-11636-00-00 / 4Gb116360000 • Yamaha Standard Piston: 4Gb-11631-00-Y0 / 4Gb1163100y0 • Yamaha Cylinder: 4Gb-11310-00-00 / 5Fu-11310-01-00 Specifications: • Type: Piston Kit (1.00Mm Oversize) • Standard Bore: 83Mm • Oversize Bore: 84Mm (1.00Mm Over) • Stroke: 74Mm • Displacement: 401Cc • Compression: 8.6:1 • Piston Type: Cast • Engine: Single-Cylinder 4-Stroke Sohc Air-Cooled • Weight: 2 Lbs / Condition: New Kit Contents (Single Cylinder): • (1) Cast Piston — 1.00Mm Oversize 84Mm • (1) Ring Set / (1) Wrist Pin / (2) Circlips • Single Cylinder Engine — One Kit Completes Rebuild Applications: • Yamaha Big Bear 400 Yfm400 2Wd 401Cc Sohc (2000-2004) • Yamaha Big Bear 400 Yfm400f 4X4 401Cc Sohc (2000-2006) • Yamaha Big Bear 400 Yfm400fb Irs 4X4 401Cc Sohc (2007-2012) • Yamaha Big Bear 400 Hunter Edition 401Cc Sohc (2000-2012) • Yamaha Kodiak 400 Yfm400fw 4X4 401Cc Sohc (1993-1999)
- Source: Aftermarket
- One Year Manufacturer's Warranty.
Specs
- Manufacturer part number50-541-07K2
- Vehicle typeAll-Terrain Vehicle
- BrandRareelectrical
- Vehicle fitment typeSpecific
- Weight1.2 lb
- Multipack quantity1
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Starting from $98.50
About this item
Product details
YAMAHA KODIAK 400 YFM400FW 4x4 — 401cc SOHC:
• Yamaha Kodiak 400 YFM400FW 4x4 401cc Air-Cooled Single-Cyl SOHC (1993-1996)
• Yamaha Kodiak 400 YFM400FW 4x4 401cc Air-Cooled Single-Cyl SOHC (1997-1999)
YAMAHA BIG BEAR 400 YFM400 — 401cc SOHC:
• Yamaha Big Bear 400 YFM400 2WD 401cc Air-Cooled SOHC (2000-2004)
• Yamaha Big Bear 400 YFM400F 4x4 401cc Air-Cooled SOHC (2000-2006)
• Yamaha Big Bear 400 YFM400FB IRS 4x4 401cc Air-Cooled SOHC (2007-2012)
ENGINE SPECIFICATIONS:
• Engine: Yamaha 401cc Air-Cooled Single-Cylinder 4-Stroke SOHC
• Standard Bore: 83mm / Stroke: 74mm
• This Kit: 1.00mm Oversize = 84mm Bore
• Compression Ratio: 8.6:1
OEM PART NUMBERS:
• Yamaha 1mm Over: 4GB-11638-00-00 / 4GB116380000
• Yamaha Standard: 4GB-11636-00-00 / 4GB116360000
1.00mm Oversize Piston Kit — Yamaha Big Bear / Kodiak 400:
Cast piston kit for Yamaha 401cc SOHC ATVs. Cylinder must be bored and honed to 84mm. Includes piston, ring set, wrist pin, and circlips. Single cylinder engine — one kit completes rebuild. Weight: 2 lbs.
⚠️ IMPORTANT: Verify OEM part number and bore size before ordering to ensure proper fitment.
• Yamaha Kodiak 400 YFM400FW 4x4 401cc Air-Cooled Single-Cyl SOHC (1993-1996)
• Yamaha Kodiak 400 YFM400FW 4x4 401cc Air-Cooled Single-Cyl SOHC (1997-1999)
YAMAHA BIG BEAR 400 YFM400 — 401cc SOHC:
• Yamaha Big Bear 400 YFM400 2WD 401cc Air-Cooled SOHC (2000-2004)
• Yamaha Big Bear 400 YFM400F 4x4 401cc Air-Cooled SOHC (2000-2006)
• Yamaha Big Bear 400 YFM400FB IRS 4x4 401cc Air-Cooled SOHC (2007-2012)
ENGINE SPECIFICATIONS:
• Engine: Yamaha 401cc Air-Cooled Single-Cylinder 4-Stroke SOHC
• Standard Bore: 83mm / Stroke: 74mm
• This Kit: 1.00mm Oversize = 84mm Bore
• Compression Ratio: 8.6:1
OEM PART NUMBERS:
• Yamaha 1mm Over: 4GB-11638-00-00 / 4GB116380000
• Yamaha Standard: 4GB-11636-00-00 / 4GB116360000
1.00mm Oversize Piston Kit — Yamaha Big Bear / Kodiak 400:
Cast piston kit for Yamaha 401cc SOHC ATVs. Cylinder must be bored and honed to 84mm. Includes piston, ring set, wrist pin, and circlips. Single cylinder engine — one kit completes rebuild. Weight: 2 lbs.
⚠️ IMPORTANT: Verify OEM part number and bore size before ordering to ensure proper fitment.
- Rareelectrical Compatible With Yamaha
- Yamaha Big Bear 400 Yfm400 2Wd — 401Cc 4-Stroke Sohc: • Yamaha Big Bear 400 Yfm400 2Wd 401Cc Air-Cooled Single-Cyl 4-Stroke Sohc (2000-2004) Yamaha Big Bear 400 Yfm400f 4X4 — 401Cc 4-Stroke Sohc: • Yamaha Big Bear 400 Yfm400f 4X4 401Cc Air-Cooled Single-Cyl 4-Stroke Sohc (2000-2006) Yamaha Big Bear 400 Yfm400fb Irs 4X4 — 401Cc Sohc: • Yamaha Big Bear 400 Yfm400fb Irs 4X4 401Cc Air-Cooled Single-Cyl Sohc (2007-2012) Yamaha Big Bear 400 Hunter Edition — 401Cc Sohc: • Yamaha Big Bear 400 Hunter Edition 401Cc Air-Cooled Single-Cyl Sohc (2000-2012) Yamaha Big Bear 400 Exploring Edition Irs — 401Cc Sohc: • Yamaha Big Bear 400 Exploring Edition Irs 401Cc Air-Cooled Sohc (2007) Yamaha Kodiak 400 Yfm400fw 4X4 — 401Cc Sohc: • Yamaha Kodiak 400 Yfm400fw 4X4 401Cc Air-Cooled Single-Cyl Sohc (1993-1999) Engine Specifications: • Engine: Yamaha 401Cc Air-Cooled Single-Cylinder 4-Stroke Sohc • Standard Bore: 83Mm / Stroke: 74Mm • This Kit: 1.00Mm Oversize = 84Mm Bore • Compression Ratio: 8.6:1 Note — Single Cylinder Kit: • Single Cylinder Engine — One Kit Completes Rebuild • Cylinder Must Be Bored And Honed To 84Mm
- Oem Part Numbers: • Yamaha 1Mm Over Piston: 4Gb-11638-00-00 / 4Gb116380000 • Yamaha Standard Piston: 4Gb-11636-00-00 / 4Gb116360000 • Yamaha Standard Piston: 4Gb-11631-00-Y0 / 4Gb1163100y0 • Yamaha Cylinder: 4Gb-11310-00-00 / 5Fu-11310-01-00 Specifications: • Type: Piston Kit (1.00Mm Oversize) • Standard Bore: 83Mm • Oversize Bore: 84Mm (1.00Mm Over) • Stroke: 74Mm • Displacement: 401Cc • Compression: 8.6:1 • Piston Type: Cast • Engine: Single-Cylinder 4-Stroke Sohc Air-Cooled • Weight: 2 Lbs / Condition: New Kit Contents (Single Cylinder): • (1) Cast Piston — 1.00Mm Oversize 84Mm • (1) Ring Set / (1) Wrist Pin / (2) Circlips • Single Cylinder Engine — One Kit Completes Rebuild Applications: • Yamaha Big Bear 400 Yfm400 2Wd 401Cc Sohc (2000-2004) • Yamaha Big Bear 400 Yfm400f 4X4 401Cc Sohc (2000-2006) • Yamaha Big Bear 400 Yfm400fb Irs 4X4 401Cc Sohc (2007-2012) • Yamaha Big Bear 400 Hunter Edition 401Cc Sohc (2000-2012) • Yamaha Kodiak 400 Yfm400fw 4X4 401Cc Sohc (1993-1999)
- Source: Aftermarket
- One Year Manufacturer's Warranty.
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Specifications
Manufacturer part number
50-541-07K2
Vehicle type
All-Terrain Vehicle
Brand
Rareelectrical
Vehicle fitment type
Specific
Warranty
Warranty information
RAREELECTRICAL products, when properly installed, are warranted against defects to the original purchaser for 1 year from date of purchase. Warranty does not cover failure due to accident, neglect or the result of normal wear & tear. Improper installation, careless handling or disassembly will void warranty. Failures due to rust, abuse, broken gears, housings or components shall not be considered for warranty, nor products used in applications which they were not intended. The sole responsibility of RAREELECTRICAL - if any - shall be the replacement of defective product. It is the responsibility of the customer to verify the correct information prior to purchasing any product from RAREELECTRICAL. All purchases made in error, bought by mistake, or returned to sender due to an incorrect address are subject to a 20% restocking fee & require a return authorization. In these cases, domestic return shipping costs will also be deducted from the refund using our discounted shipping rates.
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
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