Part-number relationships
| Relationship | Reference family | Number |
|---|---|---|
| Primary Manufacturer Part Number | Yanmar oil-seal reference | 119934-01800 |
| Equipment Prefix Cross-Reference | Komatsu/Yanmar-formatted reference | YM119934-01800 |
Excavator Engine Parts
119934-01800 Front Crankshaft Oil Seal for Yanmar 3TNV84T 3TNV88 4TNV84 4TNV88
4 product photos · Swipe on mobile, or hover and select a thumbnail.
OEM / reference119934-01800
SpecificationFront Crankshaft Oil Seal
Catalog ID72079372
119934-01800 is identified in Yanmar parts manuals as the oil seal in the front gear-housing/gear-case assembly. Manufacturer catalogs include 3TNV84T and 4TNV84T variants, while exact-number application records also cover selected 3TNV88 and 4TNV88 engines. Confirm the complete number, 73 mm-class outside diameter lead, width, sealing lip orientation, crank/gear-case dimensions, engine suffix and serial before ordering.
- Product Type
- Front Crankshaft / Gear-Housing Oil Seal
- Approximate Outside Diameter
- 73 mm lead; confirm physical item
- Approximate Width
- 10 mm lead; confirm physical item
- Lip Orientation and Shaft Diameter
- Compare with original
Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
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
Other documented relationship
Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.
Product summary
Front Crankshaft Oil Seal
- Category
- Excavator Engine Parts
- Catalog ID
- 72079372
- Photo views
- 4
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
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 119934-01800
Which machines use 119934-01800?
Recorded compatible model references include Manufacturer manual engines: Yanmar 3TNV84T / 4TNV84T variants, Additional exact-number engine leads: Yanmar 3TNV88 / 4TNV88 families, Fitment limitation: Confirm number, dimensions, lip, housing, suffix and serial. Confirm the complete part number and machine serial range before ordering.
What numbers are documented for 119934-01800?
No alternate number is listed for 119934-01800. Send the original nameplate for an alternate-number check.
How do I confirm 119934-01800 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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