Excavator Engine Parts

T426694 / 521-8085 Cylinder Head Cover for Perkins 1104 and CAT 3054C

Q: What numbers are documented for T426694?

Primary Manufacturer Part Number: T426694. Equipment Manufacturer Cross-Reference: 521-8085. Superseded Manufacturer Number: T417516. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm T426694 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.

T426694 / 521-8085 Cylinder Head Cover for Perkins 1104 and CAT 3054C, OEM/reference T426694, Cylinder Head Cover, product view 1

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OEM / referenceT426694

SpecificationCylinder Head Cover

Catalog ID74070505

Product Type: Cylinder Head Cover / Valve Cover
Product Brand: EexcavaStart
Included Components: Cover, gasket and fasteners as shown

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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 Manufacturer Part Number	Perkins cylinder head cover	T426694
Equipment Manufacturer Cross-Reference	Caterpillar cylinder head cover; mapped by owned source	521-8085
Superseded Manufacturer Number	Dealer record states T426694 replaces T417516	T417516

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

T426694

Manufacturer number

521-8085
T417516

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

Cylinder Head Cover

Category: Excavator Engine Parts
Catalog ID: 74070505
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

3 model references

Perkins engine family: 1104C-44 / 1104C-44T / 1104D-44 / 1104D-44T
CAT engine family: C4.4 / 3054C
Equipment examples from manufacturer record: 313D2 / 313D2 GC / 316 GC and selected compactors and generator sets

Fitment / evidence notes

Fitment limitation: Confirm T426694 or 521-8085, engine build list and cover connector/breather arrangement

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 T426694

Which machines use T426694?

Recorded compatible model references include Perkins engine family: 1104C-44 / 1104C-44T / 1104D-44 / 1104D-44T, CAT engine family: C4.4 / 3054C, Equipment examples from manufacturer record: 313D2 / 313D2 GC / 316 GC and selected compactors and generator sets. Recorded fitment/evidence notes: Fitment limitation: Confirm T426694 or 521-8085, engine build list and cover connector/breather arrangement. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for T426694?

Manufacturer number: 521-8085, T417516.

How do I confirm T426694 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.

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