Part-number relationships
| Relationship | Reference family | Number |
|---|---|---|
| Primary Part Number | Source catalog | 176-7688 |
| Same-number Formatting Variant | Source catalog | 1767688 |
5 product photos · Select a thumbnail to change the main view.
Excavator Engine Parts
176-7688 Insert Valve Seat for CAT C-9
OEM / reference176-7688
SpecificationInsert Valve Seat
Catalog ID51040651
Insert Valve Seat identified by primary reference 176-7688. The cited technical sources record 30 application references. Confirm the complete number, connector or mounting arrangement, and machine serial range before ordering.
Fitment status: Verified · Checked 2026-07-22- Product Type
- Insert Valve Seat
- Product Brand
- EexcavaStart
- Model Number
- 176-7688 1767688
- Engine Model
- CAT C-9
- Condition
- New replacement part
Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
Evidence record
- Source
- Exact-reference evidence retained for internal audit
- Evidence grade
- manufacturer-supported
- Checked
- 2026-07-22
Source URLs, catalog files and local evidence paths are stored in the protected product audit record and are not public outbound links.
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
Formatting alias
Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.
Product summary
Insert Valve Seat
- Category
- Excavator Engine Parts
- Catalog ID
- 51040651
- 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
30 model references
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 176-7688
Which machines use 176-7688?
Recorded compatible model references include Recorded application: D6R II, Recorded application: C-9, Recorded application: 65C, Recorded application: 65D, Recorded application: MTC755, Recorded application: MTC735, Recorded application: MT765, Recorded application: MT745 and 22 additional models shown on this page. Confirm the complete part number and machine serial range before ordering.
What numbers are documented for 176-7688?
Formatting aliases for the same number: 1767688.
How do I confirm 176-7688 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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