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Excavator Engine Parts

320/A4146 Oil Pressure Switch for JCB 444 DieselMax 3CX 4CX

Name: 320/A4146 Oil Pressure Switch for JCB 444 DieselMax 3CX 4CX
Brand: EexcavaStart
SKU: 320/A4146

OEM / reference320/A4146

SpecificationEngine Oil Pressure Switch

Catalog ID51092097

Engine oil-pressure warning switch identified by JCB part number 320/A4146. Exact-reference catalogs support JCB 444 DieselMax engines and applications including 3CX, 4CX, JS excavators, telehandlers and wheel loaders. Confirm the engine serial range, thread, terminal and switch pressure.

Fitment status: Verified · Checked 2026-07-30

Product Type: Engine Oil Pressure Switch
Product Brand: EexcavaStart
Connector: Single electrical terminal
Electrical Rating: Switch rating must be confirmed
Condition: New replacement part

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Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.

Part-number relationships

Relationship	Reference family	Number
Primary JCB Part Number	Engine oil-pressure switch	320/A4146
Formatted Alias	Same number without slash	320A4146
Formatted Alias	Same number with hyphen	320-A4146
Published Alternate Part Number	Cataloged JCB oil-pressure switch; verify serial range	320/04046
Published Alternate Part Number	Cataloged JCB oil-pressure switch; verify serial range	320/04038

Fitment data verified. Exact-reference evidence is retained in the protected product audit record · Checked 2026-07-30.

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

320/A4146

Formatting alias

320A4146
320-A4146

Other documented relationship

320/04046
320/04038

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

Product summary

Engine Oil Pressure Switch

Category: Excavator Engine Parts
Catalog ID: 51092097
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

5 model references

Engine family: JCB 444 DieselMax
Backhoe loaders: JCB 3CX / 4CX
Tracked excavators: JCB JS115 / JS130 / JS145 / JS160 / JS180 / JS200 / JS220
Telehandlers: JCB 506 / 507 / 508 / 509 / 510 / 512 / 524 / 526 / 527 / 528 / 531 / 533 / 535 / 536 / 540 / 541 / 550 / 560
Fitment limitation: Confirm engine serial, thread, terminal and switch pressure

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 320/A4146

Which machines use 320/A4146?

Recorded compatible model references include Engine family: JCB 444 DieselMax, Backhoe loaders: JCB 3CX / 4CX, Tracked excavators: JCB JS115 / JS130 / JS145 / JS160 / JS180 / JS200 / JS220, Telehandlers: JCB 506 / 507 / 508 / 509 / 510 / 512 / 524 / 526 / 527 / 528 / 531 / 533 / 535 / 536 / 540 / 541 / 550 / 560, Fitment limitation: Confirm engine serial, thread, terminal and switch pressure. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 320/A4146?

Formatting aliases for the same number: 320A4146, 320-A4146.

How do I confirm 320/A4146 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 recovered references from the same system.

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