Excavator Engine Parts

4955372 Rear Crankshaft Seal Kit for Cummins QSB4.5 and QSB6.7 Engines

Q: What numbers are documented for 4955372?

Primary Part Number: 4955372. Published OE Cross-reference: 3909411. Published OE Cross-reference: 4936646. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 4955372 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.

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OEM / reference4955372

SpecificationRear Crankshaft Oil Seal

Catalog ID54095982

Product Type: Rear Crankshaft Seal Kit
Position: Rear crankshaft
Condition: New replacement kit

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

Quotation details: MOQ, availability, lead time, item condition (new or remanufactured) and warranty coverage must be confirmed in your quotation before ordering.

Part-number relationships

Relationship	Reference family	Number
Primary Part Number	Cummins rear crankshaft seal-kit reference	4955372
Cross-reference (fitment check required)	Published Cummins OE reference	3909411
Cross-reference (fitment check required)	Published Cummins OE reference	4936646

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

4955372

Cross-reference (fitment check required)

3909411
4936646

Formatting aliases are the same number written differently. Cross-references require a specification and fitment check; they do not by themselves confirm direct interchangeability. Related assemblies and remanufactured numbers are separate relationship types.

Product summary

Rear Crankshaft Oil Seal

Category: Excavator Engine Parts
Catalog ID: 54095982
Photo views: 6

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

2 model references

Supported engine families: Cummins QSB4.5 / QSB6.7
Additional published engine families: Cummins ISB4.5 / ISB6.7 / ISC / QSC / ISL / QSL

Fitment / evidence notes

Fitment limitation: Confirm wet-clutch housing configuration, seal dimensions and engine serial

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 4955372

Which machines use 4955372?

Recorded compatible model references include Supported engine families: Cummins QSB4.5 / QSB6.7, Additional published engine families: Cummins ISB4.5 / ISB6.7 / ISC / QSC / ISL / QSL. Recorded fitment/evidence notes: Fitment limitation: Confirm wet-clutch housing configuration, seal dimensions and engine serial. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 4955372?

Cross-references are listed in the relationship table above. Compare specifications and the original unit before treating a reference as interchangeable.

How do I confirm 4955372 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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