Exmark 120-4290  Piston

  • TLB 120-4290 - TLB 1204290 (Slide 1 of 1)

Exmark 120-4290

Piston
(Superseded to )

5.55 in.

5.20 in.

2.80 in.

0.66 lbs.

Description... Hide
The Piston is the moving component contained within the engine cylinder, the purpose of which is to transfer force from the expanding gas in the combustion chamber to the crankshaft via a piston and/or connecting rod. A damaged piston can be indicative of a damaged cylinder, and may require replacement of the whole engine. However pistons are often made of softer metal, so it's possible there's no damage to the cylinder. Ensure the piston is the only damaged component of the engine cylinder when diagnosing.

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Models that Use this Part

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QTE452CEM42100 - Exmark 42" Quest E-Series Zero-Turn Mower, Exmark 452 (SN: 316000000 - 399999999) (2016)

Piston and Cylinder Head Assembly Engine Assembly No. 127-9358

QTE452CEM42100 - Exmark 42" Quest E-Series Zero-Turn Mower, Exmark 452 (SN: 400000000 - 402082299) (2017)

Piston and Cylinder Head Assembly

QTE452CEM42200 - Exmark 42" Quest E-Series Zero-Turn Mower, Exmark 452 (SN: 316000000 - 399999999) (2016)

Piston and Cylinder Head Assembly Engine Assembly No. 127-9358

QTE452CEM42200 - Exmark 42" Quest E-Series Zero-Turn Mower, Exmark 452 (SN: 400000000 - 402082299) (2017)

Piston and Cylinder Head Assembly

QTS452CEM34200 - Exmark 34" Quest S-Series Zero-Turn Mower, Exmark 452 (SN: 315000000 - 315999999) (2015)

Piston and Cylinder Head Assembly Engine Assembly No. 121-0412

QTS452CEM34200 - Exmark 34" Quest S-Series Zero-Turn Mower, Exmark 452 (SN: 316000000 - 399999999) (2016)

Piston and Cylinder Head Assembly

QTS452CEM34200 - Exmark 34" Quest S-Series Zero-Turn Mower, Exmark 452 (SN: 400000000 - 402082299) (2017)

Piston and Cylinder Head Assembly

QZE452CEM42100 - Exmark 42" Quest E-Series Zero-Turn Mower, Exmark 452 (SN: 402082300 - 404314158) (2018)

Piston and Cylinder Head Assembly