52.4mm Cylinder Gasket and Piston Ring Set for CRF125F/CRF125FB, 2014–2023
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In stock · Free Shipping
Rareelectrical Piston Kit 01.2419.BA1 for Yamaha YZ400F and WR400F
$285.69
In stock
✓ Free Shipping
Size B, 91.96 mm standard-bore piston kit for select Yamaha 399 cc 4-stroke engines. Includes piston, rings, wrist pin, and circlips.
Price shown is the online purchase price. Free shipping · 30-day return policy
BrandRareelectrical
MPN / Part Number01.2419.BA1
OEM / OE Number5BE-11631-01-B0
Part TypePiston Kit
PositionTop End / Cylinder Assembly
Product Description
Rareelectrical aftermarket piston kit for the top-end cylinder assembly. This Size B kit features a 91.96 mm piston made from forged aluminum alloy and includes the piston, rings, wrist pin, and circlips. Applications listed include the Yamaha YZ400F Motocross from 1998–1999 and Yamaha WR400F Enduro from 1998–2000.
Product Specifications
BrandRareelectrical
Manufacturer Part Number01.2419.BA1
Item Weight2 pounds
ModelAftermarket Piston Kit
Product Dimensions6 x 6 x 6 inches
Item model number01.2419.BA1
ExteriorMachined
OEM Part Number5BE-11631-01-B0
Explicit Manufacturer Part Number01.2419.BA1
Explicit OE/OEM Part Numbers5BE-11631-01-B0, from
Piston size91.96 mm (Size B)
Bore x stroke92.0 mm x 60.1 mm
Displacement399 cc
Compression ratio12.5:1
MaterialForged aluminum alloy
Kit contentsPiston, rings, wrist pin, circlips
Engine typeLiquid-cooled 4-stroke DOHC 5-valve single-cylinder
Bore sizeStandard bore
Motorcycle Compatibility
| Year | Make | Model | Power / Engine | Variant |
|---|---|---|---|---|
| 1998 | Yamaha | WR400F | 399 cc liquid-cooled 4-stroke DOHC 5-valve single-cylinder | Enduro |
| 1998 | Yamaha | YZ400F | 399 cc liquid-cooled 4-stroke DOHC 5-valve single-cylinder | Motocross |
| 1999 | Yamaha | WR400F | 399 cc liquid-cooled 4-stroke DOHC 5-valve single-cylinder | Enduro |
| 1999 | Yamaha | YZ400F | 399 cc liquid-cooled 4-stroke DOHC 5-valve single-cylinder | Motocross |
| 2000 | Yamaha | WR400F | 399 cc liquid-cooled 4-stroke DOHC 5-valve single-cylinder | Enduro |
Always compare the part number, dimensions, specifications, and compatibility details with your original part before ordering.
