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13421-PTA1-900 Shaft Balancer — diagram cutout

13421-PTA1-900 Shaft Balancer

Fits 14 KYMCO model-years, including MAXXER 450i (2026) and MAXXER 450I (2025). Callout 9 on the E04 Cylinder ● Piston ● Crankshaft diagram, 1 per machine.

Genuine KYMCO OEM Part no. 13421-PTA1-900 Also written 13421PTA1900 Fits 14 model-years

Part number
13421-PTA1-900
Also written
13421PTA1900
Factory name
SHAFT BALANCER

$173.28

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What this part is

Shaft Balancer is the component KYMCO's factory catalogue lists under number 13421-PTA1-900, in the engine group. It is drawn on the E04 Cylinder ● Piston ● Crankshaft exploded view as callout 9, and the table below lists every model-year that takes it.

Fits these KYMCO models (14 model-years)

ModelYearsFactory codeDiagramCalloutQty
MAXXER 450i 2026 LC90BN(US) E04 Cylinder ● Piston ● Crankshaft 9 1
MAXXER 450I 2025 LC90BL(US) E04 Cylinder ● Piston ● Crankshaft 9 1
MAXXER 450i (2021) 2021 LC90BH(US) E04 Cylinder ● Piston ● Crankshaft 9 1
MAXXER 450i (2023) 2023 LC90BK(US) E04 Cylinder ● Piston ● Crankshaft 9 1
MXU 450 I 2026 EPA 2026 LC90LT(US) E04 Cylinder ● Piston ● Crankshaft 9 1
MXU 450i (2021) 2021 LC90LG(US) E04 Cylinder ● Piston ● Crankshaft 9 1
MXU 450i (2023) 2023 LC90LK(US) E04 Cylinder ● Piston ● Crankshaft 9 1
MXU 450i (2024) 2024 LC90LN(US) E04 Cylinder ● Piston ● Crankshaft 9 1
MXU 450i LE (2023) 2023 LC90LL(US) E04 Cylinder ● Piston ● Crankshaft 9 1
MXU 450I LE 2026 EPA 2026 LC90LU(US) E04 Cylinder ● Piston ● Crankshaft 9 1
MXU 450i LE(2020) 2020 (Flat Deep Green) LC90LC(US), LC90LB(US) E04 Cylinder ● Piston ● Crankshaft 9 1
MXU 450i LE(2021) 2021 (Black) LC90LF(US), LC90LE(US) E04 Cylinder ● Piston ● Crankshaft 9 1
MXU 450i(2020) 2020 LC90LA(US) E04 Cylinder ● Piston ● Crankshaft 9 1
MXU 450i(2021) 2021 LC90LD(US) E04 Cylinder ● Piston ● Crankshaft 9 1

See it on the diagram

The factory exploded view this part is drawn on.

13421-PTA1-900 on the E04 Cylinder ● Piston ● Crankshaft diagram

E04 — Cylinder ● Piston ● Crankshaft

View diagram →

Often needed for the same job

From the same assembly diagrams as this part.

12191-PTA1-900 Gasket Cylinder @A Gasket Cylinder @A 12191-PTA1-900 $82.44 12251-PTA1-900 Gasket Cylinder Head Gasket Cylinder Head 12251-PTA1-900 $127.20 14523-KED9-920 Gasket Tensioner Lifter @A Gasket Tensioner Lifter @A 14523-KED9-920 $3.81 15711-PWB1-900 Washer 10.2X30X2.5 Washer 10.2X30X2.5 15711-PWB1-900 $12.09 90481-0E35-001 Washer 8Mm Washer 8Mm 90481-0E35-001 $1.65 91306-1E05-691 O-Ring 1.5*9.5 O-Ring 1.5*9.5 91306-1E05-691 $4.92

Not sure it’s yours?

  • Check the callout number: on the diagram above, 13421-PTA1-900 is the part at callout 9.
  • Decode your VIN to land on the exact model, year and colour KYMCO built for you.
  • Still unsure? Email us the number and your VIN and we will confirm the fit.

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