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WebbHome / Catalog / Brakes / Slack Adjusters
Automann
Part number 139.1030
Automann catalogs 139.1030 as an automatic, unhanded Meritor-type slack adjuster. Its description lists a 1-1/2-inch, 10-spline configuration, a 6-inch arm and a 5/8in-18 clevis.
Confirm the exact application and configuration before selecting this part. Reference numbers and similar configurations do not guarantee interchange.
| Part number / SKU | 139.1030 |
|---|---|
| Brand | Automann |
| Department | Brakes |
| Part type | Slack Adjusters |
| Applications | Dana/Spicer, Hendrickson Trailer, MeritorConditions / detailsHeader application category; retain full source description constraints |
| Unit Size | 1Conditions / detailsPrinted physical unit/package field |
| Weight | 6.43 lbsConditions / detailsOwn exact-product printed field |
| Package dimensions | 10.6 X 6.25 X 2.7 inConditions / detailsShipping package dimensions, not physical part dimensions |
| UPC Code | 889626015120 |
| Applications | Dana/Spicer Hendrickson Trailer MeritorConditions / detailsOwn exact-product attribute; unit retained within literal value/label only as printed |
| Slack Type | Automatic-Meritor TypeConditions / detailsOwn exact-product attribute; unit retained within literal value/label only as printed |
| Spline Count | 10Conditions / detailsOwn exact-product attribute; unit retained within literal value/label only as printed |
| Spline Dia. | 1-1/2"Conditions / detailsOwn exact-product attribute; unit retained within literal value/label only as printed |
| Arm Length (L1-L2) | 6"Conditions / detailsOwn exact-product attribute; unit retained within literal value/label only as printed |
| Manufacturer description | Automatic, Unhanded, Meritor Type
1-1/2in-10 x 6.0in Arm, 5/8in-18 Clevis
Includes 179.YK5005 Clevis KitConditions / detailsPreserve all printed application, configuration and installation qualifiers |
Need a measurement or technical specification? Ask our parts team before choosing the part.
| Brand / reference type | Part number | Notes |
|---|---|---|
| Euclid | E11399 | manufacturer-listed cross reference. Reference conditionsAutomatic Slack Adjuster OEM names/numbers identify applications, not genuine OEM manufacture Exact owning source description: Automatic, Unhanded, Meritor Type 1-1/2in-10 x 6.0in Arm, 5/8in-18 Clevis Includes 179.YK5005 Clevis Kit Source application categories/series do not establish all vehicle configurations. No unstated engine/year expansion. |
| Euclid | E11399A | manufacturer-listed cross reference. Reference conditionsAutomatic Slack Adjuster OEM names/numbers identify applications, not genuine OEM manufacture Exact owning source description: Automatic, Unhanded, Meritor Type 1-1/2in-10 x 6.0in Arm, 5/8in-18 Clevis Includes 179.YK5005 Clevis Kit Source application categories/series do not establish all vehicle configurations. No unstated engine/year expansion. |
| Meritor | A43275J1154S | manufacturer-listed cross reference. Reference conditionsAutomatic Slack Adjuster OEM names/numbers identify applications, not genuine OEM manufacture Exact owning source description: Automatic, Unhanded, Meritor Type 1-1/2in-10 x 6.0in Arm, 5/8in-18 Clevis Includes 179.YK5005 Clevis Kit Source application categories/series do not establish all vehicle configurations. No unstated engine/year expansion. |
| Meritor | R801042 | manufacturer-listed cross reference. Reference conditionsAutomatic Slack Adjuster OEM names/numbers identify applications, not genuine OEM manufacture Exact owning source description: Automatic, Unhanded, Meritor Type 1-1/2in-10 x 6.0in Arm, 5/8in-18 Clevis Includes 179.YK5005 Clevis Kit Source application categories/series do not establish all vehicle configurations. No unstated engine/year expansion. |
These source-qualified listings are not a fitment guarantee. Confirm the engine, OE number, installed equipment, mounting/configuration and VIN before selecting a part. Missing years or models have not been verified.
Shared wording applies within its original source scope. Each row retains its exact source conditions.
Source application categories/series do not establish all vehicle configurations.
No unstated engine/year expansion.
Series label is literal; No Year or Unspecified does not mean all years.
| Make | Model | Years |
|---|---|---|
| Freightliner | Cascadia Exact owning source description: Automatic, Unhanded, Meritor Type 1-1/2in-10 x 6.0in Arm, 5/8in-18 Clevis Includes 179.YK5005 Clevis Kit Additional Information: 803106, 5020263, BW 803106 Original source conditionsFreightliner Cascadia Exact owning source description: Automatic, Unhanded, Meritor Type 1-1/2in-10 x 6.0in Arm, 5/8in-18 Clevis Includes 179.YK5005 Clevis Kit Source application categories/series do not establish all vehicle configurations. No unstated engine/year expansion. Series label is literal; No Year or Unspecified does not mean all years. Additional Information: 803106, 5020263, BW 803106 | Not stated |
| Freightliner | Cascadia Exact owning source description: Automatic, Unhanded, Meritor Type 1-1/2in-10 x 6.0in Arm, 5/8in-18 Clevis Includes 179.YK5005 Clevis Kit Original source conditionsFreightliner Cascadia (No Year) Exact owning source description: Automatic, Unhanded, Meritor Type 1-1/2in-10 x 6.0in Arm, 5/8in-18 Clevis Includes 179.YK5005 Clevis Kit Source application categories/series do not establish all vehicle configurations. No unstated engine/year expansion. Series label is literal; No Year or Unspecified does not mean all years. |
No verified documents are listed for this part yet. Saved research PDFs remain drafts and are not attached here.
Ask for product documentationAutomann catalogs 139.1030 as an automatic, unhanded Meritor-type slack adjuster. Its description lists a 1-1/2-inch, 10-spline configuration, a 6-inch arm and a 5/8in-18 clevis.
Own exact-product attribute; unit retained within literal value/label only as printed
Preserve all printed application, configuration and installation qualifiers
Related options, components and same-family products do not establish interchangeable/selectable variants without exact configuration and current target identity review.
Research evidence only; no public or human approval.
Local reference evidence only; not human/public approval. Completeness of owning Automann cross references, specifications, qualified fitment and genuine same-application variants remains unverified.
Versioned narrative/configuration captured-source context only; original fullauthor/sourceCapture/priorreviews unchanged.
No new owning cross/specification/fitment/configuration claims, source repair, implicit hold supersession, public/physical stock approval.
Exact narrative and labelledroles are not genericfamily-to-part fitment, counterpart property transfer or transitive interchange; empty fields are boundedcapture observations, not sourceabsenceproof.
AutomaticUnhandedMeritorType/1-1/2in10spline/6arm/5/8-18clevis exact. Includes179.YK5005qty1 whilealsoRelated; socketRelatednotBOM. SourceCascadiaAdditionalInfo803106/5020263/BW803106 notnewattributedcrosses. Fourdrumbrakeschematiccontexts notallaxles/vehicles/currentyearfit or genuineMeritorproof.
No source-backed variants recorded yet; not proof that none exist.
Independent content review and explicit human approval remain required before public attachment.
Private source-bound description candidate only; independent prose review and explicit root registration required. Saved catalog assertions do not confirm current supplied stock, physical contents, installed fitment or public/human approval.
Online ordering is coming soon. Contact our team about this part; listings do not confirm stock.
Contact us to confirm current availability and shipping options for this part.
More Slack Adjusters


| Meritor | R803106 | manufacturer-listed cross reference. Reference conditionsAutomatic Slack Adjuster OEM names/numbers identify applications, not genuine OEM manufacture Exact owning source description: Automatic, Unhanded, Meritor Type 1-1/2in-10 x 6.0in Arm, 5/8in-18 Clevis Includes 179.YK5005 Clevis Kit Source application categories/series do not establish all vehicle configurations. No unstated engine/year expansion. |
|---|
| Torque | TR1133 | manufacturer-listed-directed-cross-reference. Reference conditionsDirected manufacturer reference only; reverse blanket interchange, package equivalence and make/model/year fitment are not established. Counterpart specifications, material, installation and other co-listed cross references are not transferred to the Automann owning article. |
|---|
Reference numbers alone do not guarantee fit. Confirm the exact application.
| No Year |
| Freightliner | Cascadia Exact owning source description: Automatic, Unhanded, Meritor Type 1-1/2in-10 x 6.0in Arm, 5/8in-18 Clevis Includes 179.YK5005 Clevis Kit Original source conditionsFreightliner Cascadia (Unspecified.) Exact owning source description: Automatic, Unhanded, Meritor Type 1-1/2in-10 x 6.0in Arm, 5/8in-18 Clevis Includes 179.YK5005 Clevis Kit Source application categories/series do not establish all vehicle configurations. No unstated engine/year expansion. Series label is literal; No Year or Unspecified does not mean all years. | Unspecified. |
|---|
| Not stated | Hendrickson Trailer Axle Intraax 16-1/2” x 7” / FMSI 4515E, 4707 (w/ Camshaft Tube) Exact owning source description: Automatic, Unhanded, Meritor Type 1-1/2in-10 x 6.0in Arm, 5/8in-18 Clevis Includes 179.YK5005 Clevis Kit Schematics context only; type: Drum Brake Original source conditionsHendrickson Trailer Axle Intraax 16-1/2” x 7” / FMSI 4515E, 4707 (w/ Camshaft Tube) Exact owning source description: Automatic, Unhanded, Meritor Type 1-1/2in-10 x 6.0in Arm, 5/8in-18 Clevis Includes 179.YK5005 Clevis Kit Source application categories/series do not establish all vehicle configurations. No unstated engine/year expansion. Schematics context only; type: Drum Brake | Not stated |
|---|
| Not stated | Hendrickson Trailer Axle Intraax 16-1/2” x 7” / FMSI 4515E, 4707 (With Exposed Camshaft) Exact owning source description: Automatic, Unhanded, Meritor Type 1-1/2in-10 x 6.0in Arm, 5/8in-18 Clevis Includes 179.YK5005 Clevis Kit Schematics context only; type: Drum Brake Original source conditionsHendrickson Trailer Axle Intraax 16-1/2” x 7” / FMSI 4515E, 4707 (With Exposed Camshaft) Exact owning source description: Automatic, Unhanded, Meritor Type 1-1/2in-10 x 6.0in Arm, 5/8in-18 Clevis Includes 179.YK5005 Clevis Kit Source application categories/series do not establish all vehicle configurations. No unstated engine/year expansion. Schematics context only; type: Drum Brake | Not stated |
|---|
| Not stated | Meritor Trailer Axle 16-1/2” X 7” / FMSI 4515E (“Q” Series Double Anchor Pin) Exact owning source description: Automatic, Unhanded, Meritor Type 1-1/2in-10 x 6.0in Arm, 5/8in-18 Clevis Includes 179.YK5005 Clevis Kit Schematics context only; type: Drum Brake Original source conditionsMeritor Trailer Axle 16-1/2” X 7” / FMSI 4515E (“Q” Series Double Anchor Pin) Exact owning source description: Automatic, Unhanded, Meritor Type 1-1/2in-10 x 6.0in Arm, 5/8in-18 Clevis Includes 179.YK5005 Clevis Kit Source application categories/series do not establish all vehicle configurations. No unstated engine/year expansion. Schematics context only; type: Drum Brake | Not stated |
|---|
| Not stated | Dana Spicer Trailer Axle 16-1/2” X 7” / FMSI 4515E (“Fast Change” Double Anchor Pin) Exact owning source description: Automatic, Unhanded, Meritor Type 1-1/2in-10 x 6.0in Arm, 5/8in-18 Clevis Includes 179.YK5005 Clevis Kit Schematics context only; type: Drum Brake Original source conditionsDana Spicer Trailer Axle 16-1/2” X 7” / FMSI 4515E (“Fast Change” Double Anchor Pin) Exact owning source description: Automatic, Unhanded, Meritor Type 1-1/2in-10 x 6.0in Arm, 5/8in-18 Clevis Includes 179.YK5005 Clevis Kit Source application categories/series do not establish all vehicle configurations. No unstated engine/year expansion. Schematics context only; type: Drum Brake | Not stated |
|---|
Applications not listed here have not been verified.
Compare the number on your existing part. If you’re unsure, our parts team can help check the match before you order.