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WebbHome / Catalog / Cooling / Fan Clutches
Kit Masters
Part number 8901N
Kit Masters 8901N rear-air fan clutch uses the manufacturer's Auto Lock feature to engage as friction material nears end of life. Confirm the exact fan-pilot and bolt-circle configuration before installation.
Confirm the exact application and configuration before selecting this part. Reference numbers and similar configurations do not guarantee interchange.
| Part number / SKU | 8901N |
|---|---|
| Brand | Kit Masters |
| Department | Cooling |
| Part type | Fan Clutches |
| Fan pilot diameter | 2.56 in |
| Fan bolt circle | 3.5 in |
| Drive bolt circle | 3.5 in |
| Shaft seal configuration | Urethane o-ring plus Viton o-ring |
| Kit Masters 8901N: Manufacturer Auto Lock function | Manufacturer-stated Auto Lock: automatically engages the fan clutch when friction material nears the end of its lifeConditions / detailsSource: https://kit-masters.com/wp-lib/wp-content/uploads/2024/11/Kit-Masters-Catalog.pdf. Source: https://kit-masters.com/product-detail/8901N/. Exact complete Kit Masters article named in manufacturer own page/catalog, not inferred from OEM/counterpart dimensions. Manufacturer description/BOM only, not inspected DTBP package, installation, vehicle/VIN compatibility or warranty/performance guarantee. Keep bearing-configuration noninterchangeability, 90–120 psi inlet qualification, full suffixes and every old hold; no replacement of existing specifications or references. Catalog OEM conversion rows with additional bearing/stud kits and INTERNATIONAL ONLY conditions remain outside this finite claim. Functional safety description only. No true-fail-safe, every-trip/home guarantee, patent-status or broad performance assertion. The full page explicitly lists this complete SKU. Source-bound manufacturer article assertion only; no physical-stock/package inspection or public approval. Preserve all current description/reference qualifications, old holds, exact suffixes and bearing noninterchangeability. No source version, OEM conversion row or generalized marketing promise overrides the exact candidate scope. Auto Lock behavior describes the correctly assembled/rebuilt operating fan clutch, not loose-kit operation, a guaranteed prevention of all failures or a safe-to-continue-driving instruction. Actual service/inspection is still required. Own page says replace hub/pulley bearings with the clutch; failure voids manufacturer warranty. No actual DTBP package condition or warranty entitlement is certified. Exact manufacturer article context only; not physical-stock inspection, supplied condition, package contents or installed fit approval. Existing identity, source, stock and fitment holds remain. No reciprocal/transitive interchange or counterpart-property transfer. |
Need a measurement or technical specification? Ask our parts team before choosing the part.
| Brand / reference type | Part number | Notes |
|---|---|---|
| Not specified in manufacturer replacement list | 10900980001 | manufacturer-listed replacement. Reference conditionsDirect exact-product manufacturer list; individual reference brand not attributed. This is not a vehicle/year fitment approval; no transitive expansion. |
| Not specified in manufacturer replacement list | 1090-09800-01 | manufacturer-listed replacement. Reference conditionsDirect exact-product manufacturer list; individual reference brand not attributed. This is not a vehicle/year fitment approval; no transitive expansion. |
| Not specified in manufacturer replacement list | 10900950001 | manufacturer-listed replacement. Reference conditionsDirect exact-product manufacturer list; individual reference brand not attributed. This is not a vehicle/year fitment approval; no transitive expansion. |
| Not specified in manufacturer replacement list | 1090-09500-01 | manufacturer-listed replacement. Reference conditionsDirect exact-product manufacturer list; individual reference brand not attributed. This is not a vehicle/year fitment approval; no transitive expansion. |
| Not specified in manufacturer replacement list | 85111808 |
Fitment has not been verified for this listing.
Compare the number on your existing part. If you’re unsure, our parts team can help check the match before you order.
kit-masters.com — Source document cited for this item. Confirm the exact article and source restrictions; not a complete application or interchange approval.
Kit Masters 8901N rear-air fan clutch uses the manufacturer's Auto Lock feature to engage as friction material nears end of life. Confirm the exact fan-pilot and bolt-circle configuration before installation.
Vehicle/VIN and installation configuration remain qualified; current manufacturer replacement list not claimed exhaustive.
Candidate source-model/configuration evidence only; not physical stocked article, sell-unit/package, customer application, installation, safety or public approval.
8901N and8905N are different fan-side pilot/bolt-circle configurations. Shared rear-air operating instructions or a shared drive bolt circle do not establish same-application selection, interchange or a safe conversion.
Keep OEM replacement, complete hub/clutch assembly, hub-only, bearing-kit and seal/lining repair-kit roles distinct. No inverse/transitive expansion or kit-to-clutch equivalence.
Source date/edition limits and both conflicting Use Kit cells remain held; do not resolve by guessing or transferring adjacent model facts.
Complete axial geometry/standout, fan/stud fastener configuration and as-built hub/bearing selection for the intended installation.
Explicit manufacturer same-application selection/allowed conversion evidence; different pilots and fan bolt circles remain material.
Exact physical stocked article/package and applicable latest instructions; no photo/stock-label verification in this lane.
Manufacturer resolution of both Use Kit disagreements and1090-09600-01 Mack exception before broad replacement use.
Prior exact cross-reference list brand/direction qualifiers and all source/identity/package/application holds remain unchanged. No new variant or public link is authorized.
New qualified exact-row association only; requires independent content review and separate public approval.
Both previous unqualified references remain held; no automatic hold supersession or normalization.
Mack replacement selection, exact vehicle/engine fitment and full variant interchange remain unverified.
No source-backed fitment recorded yet; not proof that none exist.
No source-backed variants recorded yet; not proof that none exist.
Independent content review and explicit human approval remain required before public attachment.
Shared exact Support-linked full installation sheet requires concurrent pulley-bearing replacement and appropriate separately sold bearing kit; do not select kit from clutch number alone.
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.
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| Not individually attributed in manufacturer OEM-reference table | 1090-09600-01 | manufacturer-listed replacement with application exception. Reference conditionsKit Masters catalog: use 8901N unless on Mack. Do not use this reference to select 8901N for a Mack application. Exact OEM-reference row only; the catalog does not establish the OEM brand, a specific truck/model/year/engine, or the part to use on Mack. Preserve the exact number 1090-09600-01. No punctuation-free, prefixed, suffixed, reciprocal or transitive reference is approved by this row. Manufacturer catalog at the /2024/11/ URL, PDF page 10; no visible edition date establishes it as the latest revision. Confirm the installed clutch and mounting configuration before selection. Kit Masters requires replacement of the pulley bearings when replacing the fan clutch, even when replacing only the clutch portion. The appropriate bearing kit must be selected for the installation; this reference does not establish that bearings are included or that a repair kit equals the complete clutch. |
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Reference numbers alone do not guarantee fit. Confirm the exact application.
Different pilots/fan bolt circles remain material; shared drive circle/instructions are not same-application interchange.
Exact 1090-09600-01 association retains Mack exclusion and both old unqualified holds.
Both Use Kit conflicts, axial geometry, stocked package, latest revision and installation/application holds remain.
OEM-row Aluminum Body/Remanufactured are not automatically owner material/condition; no inverse/transitive expansion.
Private source-bound description candidate only; independent prose review and explicit root registration required. No stocked package, customer application, latest instruction or public/human approval is established.
Source: https://kit-masters.com/wp-lib/wp-content/uploads/2024/11/Kit-Masters-Catalog.pdf. Source: https://kit-masters.com/product-detail/8901N/. Exact complete Kit Masters article named in manufacturer own page/catalog, not inferred from OEM/counterpart dimensions. Manufacturer description/BOM only, not inspected DTBP package, installation, vehicle/VIN compatibility or warranty/performance guarantee. Keep bearing-configuration noninterchangeability, 90–120 psi inlet qualification, full suffixes and every old hold; no replacement of existing specifications or references. Catalog OEM conversion rows with additional bearing/stud kits and INTERNATIONAL ONLY conditions remain outside this finite claim. Source-bound manufacturer article assertion only; no physical-stock/package inspection or public approval. Preserve all current description/reference qualifications, old holds, exact suffixes and bearing noninterchangeability. No source version, OEM conversion row or generalized marketing promise overrides the exact candidate scope. This concise lead summarizes the same finite own facts, not additional engineering discoveries. Do not discard existing 90–120 psi inlet/end-of-line qualification, bearing-config noninterchangeability or old technical/source cautions when replacing the lead. Own page says replace hub/pulley bearings with the clutch; failure voids manufacturer warranty. No actual DTBP package condition or warranty entitlement is certified. Exact manufacturer article context only; not physical-stock inspection, supplied condition, package contents or installed fit approval. Existing identity, source, stock and fitment holds remain. No reciprocal/transitive interchange or counterpart-property transfer.
