Excavator Engine Parts

8N1187 Loaded Cylinder Head Assembly for Caterpillar 3306PC

Name: 8N1187 Loaded Cylinder Head Assembly for Caterpillar 3306PC
Brand: EexcavaStart
SKU: 8N1187

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OEM / reference8N1187

SpecificationLoaded Cylinder Head Assembly

Catalog ID77741492

Cylinder-head assembly identified by Caterpillar number 8N1187 for 3306PC/3306 engine families. The approved owned inventory photographs show loaded heads with valve-train components, while many public catalogs sell 8N1187 as a bare casting. Confirm whether a bare or loaded configuration is required, together with engine serial prefix and precombustion-chamber arrangement.

Product Type: Cylinder Head Assembly
Product Brand: EexcavaStart
Owned Photo Configuration: Loaded with valve-train components
Material: Cast iron
Combustion System: Precombustion chamber; verify engine
Condition: New replacement part

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Part-number relationships

Relationship	Reference family	Number
Primary Equipment Part Number	Caterpillar cylinder-head group number	8N1187
Same-number Formatting Variant	Hyphenated search format	8N-1187
Cataloged Replacement Family	Cylinder-head family; verify bare/loaded configuration	242-3435
Cataloged Replacement Family	Cylinder-head family; verify serial prefix	4N7446
Cataloged Replacement Family	Cylinder-head family; verify serial prefix	6N8120
Cataloged Replacement Family	Cylinder-head family; verify serial prefix	6N8889

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

8N1187

Formatting alias

8N-1187

Other documented relationship

242-3435
4N7446
6N8120
6N8889

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

Product summary

Loaded Cylinder Head Assembly

Category: Excavator Engine Parts
Catalog ID: 77741492
Photo views: 3

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

Engine family: Caterpillar 3306PC / 3306
Cataloged equipment: D6D / D7G tractors, 235 excavator, 966C loader and related 3306 machines
Fitment limitation: Confirm engine serial prefix and bare-versus-loaded assembly content

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 8N1187

Which machines use 8N1187?

Recorded compatible model references include Engine family: Caterpillar 3306PC / 3306, Cataloged equipment: D6D / D7G tractors, 235 excavator, 966C loader and related 3306 machines, Fitment limitation: Confirm engine serial prefix and bare-versus-loaded assembly content. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 8N1187?

Formatting aliases for the same number: 8N-1187.

How do I confirm 8N1187 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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