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91351-6B42-000 O-Ring Pinion Cap — diagram cutout

91351-6B42-000 O-Ring Pinion Cap

Fits 17 KYMCO model-years, including DOWNTOWN GT 125 (2026) and MONGOOSE 110i (2025).

Genuine KYMCO OEM Part no. 91351-6B42-000 Also written 913516B42000 Fits 17 model-years

Part number
91351-6B42-000
Also written
913516B42000
Factory name
O-RING PINION CAP

$14.70

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What this part is

O-Ring Pinion Cap is the component KYMCO's factory catalogue lists under number 91351-6B42-000, in the seals & bearings group. It is drawn on 3 factory exploded views; the table below gives the diagram, the callout number and the quantity for every model-year that takes it.

Fits these KYMCO models (17 model-years)

ModelYearsFactory codeDiagramCalloutQty
DOWNTOWN GT 125 2026 SK25HB(US) E05 Pulley 29 2
MONGOOSE 110i 2025 LE22AA(US) E05 Driven Pulley 33 1
Mongoose 90S (2016~) 2016+ LE20BB(US) E05 Driven Pulley 33 1
MONGOOSE 90S (2021) 2021 LE20BL(US) E05 Driven Pulley 33 1
Mongoose 90S(2018) 2018 LE20BE(US) E05 Driven Pulley 33 1
Mongoose 90S(2019) 2019 LE20BG(US) E05 Driven Pulley 33 1
MONGOOSE 90S(2020) 2020 LE20BJ(US) E05 Driven Pulley 33 1
MONGOOSE 90S(2020) 2022 LE20BM(US) E05 Driven Pulley 33 1
MONGOOSE 90S(2022) 2022 LE20BN(US) E05 Driven Pulley 33 1
MXU 150 (2016~) 2016+ LB30EA(US) E06 Driven Pulley 33 2
MXU 150 2026 EPA 2026 LB30ES(US) E06 Driven Pulley 33 2
MXU 150 X (2016-2017) 2016 LB30EA(US) E06 Driven Pulley 33 2
MXU 150(2019) 2019 LB30EE(US) E06 Driven Pulley 33 2
MXU 150X 2021MY EPA(2021) 2021 LB30EJ(US) E06 Driven Pulley 33 2
MXU 150X 2023MY 2023 LB30EL(US) E06 Driven Pulley 33 2
MXU 150X 2025MY EPA 2025 LB30ER(US) E06 Driven Pulley 33 2
MXU 150X(2020) 2020 LB30EH(US) E06 Driven Pulley 33 2

See it on the diagram

The 3 factory exploded views this part is drawn on.

91351-6B42-000 on the E05 Pulley diagram

E05 — Pulley

View diagram → 91351-6B42-000 on the E05 Driven Pulley diagram

E05 — Driven Pulley

View diagram → 91351-6B42-000 on the E06 Driven Pulley diagram

E06 — Driven Pulley

View diagram →

Often needed for the same job

From the same assembly diagrams as this part.

90605-1F66-721 Cir Clip 7Mm Cir Clip 7Mm 90605-1F66-721 $4.92 91211-KEBE-900 Seal Driven Face 34X41X4 Seal Driven Face 34X41X4 91211-KEBE-900 $37.41 94520-28000 Cir Clip In 28 Cir Clip In 28 94520-28000 $4.92 94601-33000 Clip Piston Pin 33Mm Clip Piston Pin 33Mm 94601-33000 $4.92 23237-KHG8-901 Collar Seal Collar Seal 23237-KHG8-901 $29.22 90403-KGN7-671 Washer Thrust 28X44X1.5 Washer Thrust 28X44X1.5 90403-KGN7-671 $14.73

Not sure it’s yours?

  • Check the callout number: on the diagram above, 91351-6B42-000 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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