Excavator Spare Parts

4448303 Key Start Switch for John Deere 75C 120C and Hitachi EX200-2 EX200-5

Q: What numbers are documented for 4448303?

Primary Manufacturer Part Number: 4448303. Aftermarket Direct-Replacement Reference: 4250350. Aftermarket Direct-Replacement Reference: 4469337. Aftermarket Direct-Replacement Reference: 4477373. Aftermarket Direct-Replacement Reference: AT154992. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 4448303 before ordering?

Match the complete part number, compare the connector or mounting arrangement with the product photos, and confirm the machine or engine model and serial range. Send clear photos of the original unit when requesting a quote.

4448303 Key Start Switch for John Deere 75C 120C and Hitachi EX200-2 EX200-5, OEM/reference 4448303, Key Start / Ignition Switch, product view 1

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OEM / reference4448303

SpecificationKey Start / Ignition Switch

Catalog ID79701082

4448303 is a key-start ignition switch used in John Deere and Hitachi construction-equipment applications. The official John Deere parts page identifies 4448303 as a Key Start Switch. Two independent exact-number application records agree on the replacement family 4250350, 4469337, 4477373 and AT154992, and list John Deere 75C, 120C and 200DLC plus Hitachi EX200-2, EX200-3 and EX200-5 among supported machines. The supplied unit has a six-terminal connector and two keys. Confirm the original number, connector, key positions and machine serial range before shipment; voltage is intentionally not fixed because public catalog descriptions are inconsistent.

Product Type: Key start / ignition switch
Connector: Six-terminal plug shown in exact owned photographs
Keys Included: 2
Voltage: Confirm from original machine; inconsistent public descriptions are not repeated
Condition: New replacement part

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Part-number relationships

Relationship	Reference family	Number
Primary Manufacturer Part Number	Official John Deere product identity	4448303
Aftermarket Direct-Replacement Reference	Independent exact-number catalogs; connector confirmation required	4250350
Aftermarket Direct-Replacement Reference	Independent exact-number catalogs; connector confirmation required	4469337
Aftermarket Direct-Replacement Reference	Independent exact-number catalogs; connector confirmation required	4477373
Aftermarket Direct-Replacement Reference	Independent exact-number catalogs; connector confirmation required	AT154992

Product fitment guide

Part numbers and compatible models

Quickly compare the reference number and recorded machine applications. Use the original photos and the checklist before ordering.

Part identification

Reference numbers

Primary number

4448303

Direct interchange

4250350
4469337
4477373
AT154992

Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.

Product summary

Key Start / Ignition Switch

Category: Excavator Spare Parts
Catalog ID: 79701082
Photo views: 5

Before ordering

Confirm these details

Match the complete part number on the original component.
Compare connectors, mounting points and visible dimensions with the product photos.
Confirm the exact machine or engine model and serial range before ordering.

Machine fitment

Compatible model references

6 model references

John Deere excavators: 75C / 75D / 80 / 80C / 85D / 110 / 120 / 120C / 120D / 135C / 135D
John Deere excavators: 160CLC / 160DLC / 190E / 200CLC / 200DLC / 225DLC / 230LC / 240DLC / 270DLC
John Deere excavators: 330LC / 350DLC / 450DLC / 490E / 550LC / 650DLC / 690ELC / 790ELC / 850DLC
Hitachi excavator families: EX-1 / EX-2 / EX-3 / EX-5 / EX-6 and ZX-1 / ZX-3 series
Representative Hitachi models: EX200-2 / EX200-3 / EX200-5 / ZX120-3 / ZX200LC-3
Fitment Limitation: Confirm 4448303 or listed replacement reference, six-terminal connector, switch positions and machine serial range

Compatibility lists identify searchable model families, not every production serial range. Confirm the original part number and machine serial number before purchase.

Quick fitment answers

Common questions about 4448303

Which machines use 4448303?

Recorded compatible model references include John Deere excavators: 75C / 75D / 80 / 80C / 85D / 110 / 120 / 120C / 120D / 135C / 135D, John Deere excavators: 160CLC / 160DLC / 190E / 200CLC / 200DLC / 225DLC / 230LC / 240DLC / 270DLC, John Deere excavators: 330LC / 350DLC / 450DLC / 490E / 550LC / 650DLC / 690ELC / 790ELC / 850DLC, Hitachi excavator families: EX-1 / EX-2 / EX-3 / EX-5 / EX-6 and ZX-1 / ZX-3 series, Representative Hitachi models: EX200-2 / EX200-3 / EX200-5 / ZX120-3 / ZX200LC-3, Fitment Limitation: Confirm 4448303 or listed replacement reference, six-terminal connector, switch positions and machine serial range. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 4448303?

Documented direct interchanges: 4250350, 4469337, 4477373, AT154992.

How do I confirm 4448303 before ordering?

Match the complete part number on the original component. Compare connectors, mounting points and visible dimensions with the product photos. Confirm the exact machine or engine model and serial range before ordering. Send clear photos of the original unit and connector layout when requesting a quote.

Continue comparing verified references from the same system.

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