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19523-PTA1-900 Hose Thermoatat B — diagram cutout

19523-PTA1-900 Hose Thermoatat B

Fits 20 KYMCO model-years, including MAXXER 450i (2026) and MAXXER 450I (2025).

Genuine KYMCO OEM Part no. 19523-PTA1-900 Also written 19523PTA1900 Fits 20 model-years

Part number
19523-PTA1-900
Also written
19523PTA1900
Factory name
HOSE THERMOATAT B

$40.38

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What this part is

Hose Thermoatat B is the component KYMCO's factory catalogue lists under number 19523-PTA1-900, in the cooling group. It is drawn on the E05 Cover Left Crank Case exploded view, and the table below lists every model-year that takes it.

Fits these KYMCO models (20 model-years)

ModelYearsFactory codeDiagramCalloutQty
MAXXER 450i 2026 LC90BN(US) E05 Cover Left Crank Case 26 1
MAXXER 450I 2025 LC90BL(US) E05 Cover Left Crank Case 26 1
MAXXER 450i (2021) 2021 LC90BH(US) E05 Cover Left Crank Case 26 1
MAXXER 450i (2023) 2023 LC90BK(US) E05 Cover Left Crank Case 26 1
MXU 450 (2017~) 2017+ LC90EJ(US) E05 Cover Left Crank Case 23 1
MXU 450 I 2026 EPA 2026 LC90LT(US) E05 Cover Left Crank Case 23 1
MXU 450i (2017~) 2017+ LC90EE(US) E05 Cover Left Crank Case 23 1
MXU 450i (2021) 2021 LC90LG(US) E05 Cover Left Crank Case 23 1
MXU 450i (2023) 2023 LC90LK(US) E05 Cover Left Crank Case 23 1
MXU 450i (2024) 2024 LC90LN(US) E05 Cover Left Crank Case 23 1
MXU 450i LE (2017~) 2017+ LC90EF(US) E05 Cover Left Crank Case 23 1
MXU 450i LE (2023) 2023 LC90LL(US) E05 Cover Left Crank Case 23 1
MXU 450I LE 2026 EPA 2026 LC90LU(US) E05 Cover Left Crank Case 23 1
MXU 450i LE(2018) 2018 LC90EN(US) E05 Cover Left Crank Case 23 1
MXU 450i LE(2019) 2019 LC90ES(US), LC90ET(US) E05 Cover Left Crank Case 23 1
MXU 450i LE(2020) 2020 (Flat Deep Green) LC90LC(US), LC90LB(US) E05 Cover Left Crank Case 23 1
MXU 450i LE(2021) 2021 (Black) LC90LF(US), LC90LE(US) E05 Cover Left Crank Case 23 1
MXU 450i(2019) 2019 LC90ER(US) E05 Cover Left Crank Case 23 1
MXU 450i(2020) 2020 LC90LA(US) E05 Cover Left Crank Case 23 1
MXU 450i(2021) 2021 LC90LD(US) E05 Cover Left Crank Case 23 1

See it on the diagram

The factory exploded view this part is drawn on.

19523-PTA1-900 on the E05 Cover Left Crank Case diagram

E05 — Cover Left Crank Case

View diagram →

Often needed for the same job

From the same assembly diagrams as this part.

11394-PWB1-900 Gasket Left Cover Gasket Left Cover 11394-PWB1-900 $75.36 11496-PWB1-900 Gasket Sensor Housing Gasket Sensor Housing 11496-PWB1-900 $6.06 16958-PWB1-910 O-Ring 10.77X2.62 O-Ring 10.77X2.62 16958-PWB1-910 $4.26 90407-KAM1-001 Sealing Washer B Oil Pipe Join Sealing Washer B Oil Pipe Join 90407-KAM1-001 $1.86 90461-PWB1-900 Washer Sealing Washer Sealing 90461-PWB1-900 $6.06 90474-3C33-001 Washer 8Mm Washer 8Mm 90474-3C33-001 $2.85

Not sure it’s yours?

  • Check the callout number: on the diagram above, 19523-PTA1-900 is the part at the callout numbers listed in the table.
  • 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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