Mack MP8/Volvo D13 (2007-2022) Heavy-Duty Belt Tensioner/Idler Pulley Dayco - 89823

Part number 89823

Dayco 89823 has a cataloged steel serpentine pulley with 12 grooves. Its listed pulley overall diameter is 80 mm / 3.150 in.

Confirm the exact application and configuration before selecting this part. Reference numbers and similar configurations do not guarantee interchange.

Specifications

Part number / SKU	89823
Brand	Dayco
Department	Belts & Tensioners
Part type	Idler Pulleys
Pulley overall diameter	80 mm / 3.150 in Conditions / details Manufacturer catalog dimensions for this exact Dayco number only. Competitive pulleys may vary slightly, as the table footnote warns. Dimensions alone do not establish vehicle fitment, an interchangeable competitor article, current stock revision or complete kit contents. Both printed mm/in values are retained verbatim, not recalculated. Bearing ID1 is not silently renamed bolt bore. Generic overview marketing statements are not exact-part specifications.
Pulley overall width	45.6 mm / 1.795 in Conditions / details Manufacturer catalog dimensions for this exact Dayco number only. Competitive pulleys may vary slightly, as the table footnote warns. Dimensions alone do not establish vehicle fitment, an interchangeable competitor article, current stock revision or complete kit contents. Both printed mm/in values are retained verbatim, not recalculated. Bearing ID1 is not silently renamed bolt bore. Generic overview marketing statements are not exact-part specifications.
Bearing ID1	25 mm / 0.984 in Conditions / details Manufacturer catalog dimensions for this exact Dayco number only. Competitive pulleys may vary slightly, as the table footnote warns. Dimensions alone do not establish vehicle fitment, an interchangeable competitor article, current stock revision or complete kit contents. Both printed mm/in values are retained verbatim, not recalculated. Bearing ID1 is not silently renamed bolt bore. Generic overview marketing statements are not exact-part specifications.
Number of grooves	12 Conditions / details Manufacturer catalog dimensions for this exact Dayco number only. Competitive pulleys may vary slightly, as the table footnote warns. Dimensions alone do not establish vehicle fitment, an interchangeable competitor article, current stock revision or complete kit contents. Both printed mm/in values are retained verbatim, not recalculated. Bearing ID1 is not silently renamed bolt bore. Generic overview marketing statements are not exact-part specifications.
Pulley type	Serpentine Conditions / details Manufacturer catalog dimensions for this exact Dayco number only. Competitive pulleys may vary slightly, as the table footnote warns. Dimensions alone do not establish vehicle fitment, an interchangeable competitor article, current stock revision or complete kit contents. Both printed mm/in values are retained verbatim, not recalculated. Bearing ID1 is not silently renamed bolt bore. Generic overview marketing statements are not exact-part specifications.
Pulley material	Steel Conditions / details Manufacturer catalog dimensions for this exact Dayco number only. Competitive pulleys may vary slightly, as the table footnote warns. Dimensions alone do not establish vehicle fitment, an interchangeable competitor article, current stock revision or complete kit contents. Both printed mm/in values are retained verbatim, not recalculated. Bearing ID1 is not silently renamed bolt bore. Generic overview marketing statements are not exact-part specifications.
Flanged	No Conditions / details Manufacturer catalog dimensions for this exact Dayco number only. Competitive pulleys may vary slightly, as the table footnote warns. Dimensions alone do not establish vehicle fitment, an interchangeable competitor article, current stock revision or complete kit contents. Both printed mm/in values are retained verbatim, not recalculated. Bearing ID1 is not silently renamed bolt bore. Generic overview marketing statements are not exact-part specifications.

Need a measurement or technical specification? Ask our parts team before choosing the part.

Cross References

Conditions applying to every reference below
Dayco catalog competitor/OE lookup directly prints this branded number alongside exact DAYCO: 89823.
Lookup direction is printed competitor/OE number to Dayco article; no universal or bidirectional interchange asserted.
Numeric lookup may return multiple products or brands; preserve exact printed owning Dayco article and configuration. No fitment or counterpart specifications inferred.
Brand / reference type	Part number	Notes
AC DELCO	36468	manufacturer-listed-cross-reference. Shared conditions also apply
GATES	36468	manufacturer-listed-cross-reference. Shared conditions also apply
NAPA	36468	manufacturer-listed-cross-reference. Shared conditions also apply
VOLVO	20582558	manufacturer-listed-cross-reference. Shared conditions also apply
BANDO	580285	manufacturer-listed-cross-reference. Shared conditions also apply
Continental Elite

Fitment help

Source-listed applications — confirm configuration

Fitment notice

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.

North American semi-truck models first where identified; consecutive listed years grouped without filling gaps.
Make	Model	Years
Mack	/ Volvo; engine group Mack MP8 / Volvo D13; representative model group 9700, Anthem, CHU, CXP, CXU, GU7, GU8, MRU, TerraPro, VAH, VHD, VNL, VNM, VNR, VNX Manufacturer labels model and engine group representative only; no assertion of every date/make/engine permutation. Verify exact pulley bore/diameter/offset and installed drive. Original source conditions 2007–2022 Mack / Volvo; engine group Mack MP8 / Volvo D13; representative model group 9700, Anthem, CHU, CXP, CXU, GU7, GU8, MRU, TerraPro, VAH, VHD, VNL, VNM, VNR, VNX Manufacturer labels model and engine group representative only; no assertion of every date/make/engine permutation. Verify exact pulley bore/diameter/offset and installed drive.	2007-2022

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.

Detailed product and selection notes

Dayco 89823 has a cataloged steel serpentine pulley with 12 grooves. Its listed pulley overall diameter is 80 mm / 3.150 in.

Manufacturer catalog dimensions for this exact Dayco number only. Competitive pulleys may vary slightly, as the table footnote warns. Dimensions alone do not establish vehicle fitment, an interchangeable competitor article, current stock revision or complete kit contents. Both printed mm/in values are retained verbatim, not recalculated. Bearing ID1 is not silently renamed bolt bore. Generic overview marketing statements are not exact-part specifications.

Private source-bound prose candidate only; all original owner fields, unresolved notes and held claims remain bound unchanged. No new fitment, interchange, installation, package-content or current-stock claim is made.

Part type: Idler Pulleys
Department: Belts & Tensioners

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89823