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3971610 Cummins QSB4.5 QSB6.7 Starter Motor Bulk Supply

The 3971610 starter motor is a 12V, 2.5kW, 10-tooth clockwise unit for Cummins QSB4.5 and QSB6.7 engine applications. Elecdura supports engine-parts importers with full OE grouping, 127 mm mounting-circle checks and repeat-order consistency.
  • 3971610

  • 3971610 / 3971613 / 3971614 / 3971615 / 428000-2870 / 428000-2910 / 428000-2911 / 428000-2920 / 19104N

  • Elecdura

  • Available for qualified orders

  • 20 pcs

  • 7 - 15 Days

  • Neutral packaging / private-label review

  • 18 Months

  • 3971610 / 3971613 / 3971614 / 3971615 / 428000-2870 / 428000-2910 / 428000-2911 / 428000-2920 / 19104N

  • Industrial and construction equipment using Cummins QSB4.5 or QSB6.7 engines

  • Confirm 12V, 2.5kW, 10T, CW, 2 × Ø11 mounting holes, Ø89 drive-end locating reference, 49 mm and 19 mm axial references, mounting orientation and terminal layout against the removed starter before volume supply.

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3971610 Cummins Starter Motor Matching for Engine Parts Importers

3971610 is positioned for Cummins QSB4.5 and QSB6.7 applications used across industrial and construction equipment. The engine name alone is not enough for purchasing because equipment builders can specify different electrical systems, drive-end housings or cable orientations around the same engine family.

Send the engine serial number, equipment model, old-unit label and clear face and terminal photographs. Elecdura compares the specified 12V 2.5kW rating, 10-tooth pinion, Ø127 two-hole face and drive depth so the importer receives a checkable configuration.


3971610 Starter Motor Specifications and B2B Fitment Drawing

Primary OE reference

3971610

Target application

Industrial and construction equipment using Cummins QSB4.5 or QSB6.7 engines

Voltage and output

12V / 2.5kW

Pinion, module and rotation

10 teeth / module 3.175 / CW

Mounting-hole reference

2 × Ø11 mounting holes; 30° and 62° mounting relationships

Drive-end reference

Ø89 drive-end locating reference; 49 mm and 19 mm axial references; Ø127 mounting-face reference

OE and cross-reference group

3971610 / 3971613 / 3971614 / 3971615 / 428000-2870 / 428000-2910 / 428000-2911 / 428000-2920 / 19104N

Wholesale terms

MOQ 20 pcs / normally 7–15 days after order confirmation

Warranty

18 months under agreed sales terms

3971610 Cummins QSB4.5 QSB6.7 10T starter dimensions

3971610 10T starter motor mounting and drive-end dimensions for buyer-side comparison.

Cummins QSB4.5 and QSB6.7 equipment builders can use different cable positions and drive-end housings. Compare 2 × Ø11 mounting holes, Ø127 mounting-face reference, Ø89 drive-end locating reference, 49 mm and 19 mm axial references and 30° and 62° mounting relationships with the removed starter.

Add the engine serial number, a straight drive-end photograph and the 10-tooth count to the request. These checks let an importer confirm 3971610 before dispatch and use the same physical checkpoints when later cartons arrive.


3971610 Starter Motor OE Review for Cummins Distributor Stock

Useful references include 3971613, 3971614, 3971615, Denso 428000-2870 through 428000-2920 variants, and 19104N. Keep the exact engine and removed-unit number next to the quantity because suffixes and service channels can correspond to different physical starter versions.

  • Engine check: record QSB4.5 or QSB6.7 and the engine serial.

  • Drive check: confirm 10 teeth and clockwise rotation.

  • Mounting check: compare the two Ø11 holes, Ø89 locating feature and terminals.


3971610 Starter Motor Supply Planning for Cummins Equipment Buyers

Equipment distributors can verify the unit on one identified QSB engine by checking bolt alignment, cable clearance and cranking behavior before replenishing service stock. Elecdura supports neutral cartons and can review private-label packaging for qualified quantities with agreed artwork and technical labeling.

  • Drive end: confirm the 10-tooth pinion and two-hole casting.

  • Electrical side: compare solenoid clocking, terminals and the full label.

  • Shipment consistency: apply the same checks across cartons so a related QSB housing or output is not mixed into the 3971610 order.

The video shows Elecdura starter-motor production and electrical testing. Send the QSB engine serial, equipment application, complete old-unit reference, photographs, quantity and packaging requirement so the response can define the 3971610 configuration and commercial supply terms.


3971610 Starter Motor Wholesale FAQ

Which Cummins data should accompany a 3971610 inquiry?

Provide the QSB4.5 or QSB6.7 engine serial number, equipment model and complete number on the removed starter. Add label, mounting, pinion and terminal photographs. The engine serial helps distinguish build and electrical-system differences, while the physical images let Elecdura confirm that the requested two-hole drive end belongs to the actual machine.


How should 3971613, 3971615 and 428000-2920 be used?

They are related references that can connect manufacturer and service records to the 3971610 purchasing group. Preserve the exact number supplied by the buyer and confirm 12V, 2.5kW, 10 teeth, clockwise rotation and mounting geometry. Do not discard the engine serial or physical comparison merely because a cross-reference appears in a product database.


What identifies the two-hole Cummins mounting face?

Measure the two Ø11 holes, Ø127 face and Ø89 locating feature, then compare the 30° and 62° relationships shown in the technical drawing. Use actual tools and a straight-on photograph. These points identify how the starter seats and help separate another QSB housing that may share the same general motor and solenoid.


Why should the 49 mm and 19 mm references be recorded?

They describe the axial relationship between the face and drive components. Compare them with the removed starter together with the 10-tooth pinion. A starter can align at the bolt holes but still place the gear incorrectly, leading to shallow engagement, grinding or slow release after the engine starts.


What should be checked during a QSB engine trial?

Confirm full face seating, normal bolt entry, cable reach, terminal clearance and clean pinion engagement. Record battery voltage, circuit voltage drop and cranking behavior so a weak electrical system is not mistaken for a product concern. Save the engine serial and installation photographs as the reference for future orders to the same fleet.


What if the removed starter label shows another output?

Keep the requested 12V 2.5kW configuration visible on the RFQ, purchase order and technical label. If the removed starter shows another output, submit it as a separate inquiry with photographs instead of changing the existing line. This keeps the customer’s machine details connected to the quoted unit and prevents ratings from being mixed in stock.


What belongs in incoming inspection for 3971610?

Select cartons across the shipment and verify full references, ten teeth, the two-hole face, terminals, electrical label and protective packing. Compare a selected unit with the measurements confirmed on the identified QSB machine and note the shipment lot. Quarantine any item with another rating, nose or connector before it reaches equipment-service inventory.


What information enables accurate bulk pricing?

Send the exact Cummins or Denso reference, QSB engine serial, equipment model, old-unit label and photographs, quantity, delivery country, target date and packaging request. Elecdura can then quote the specified 12V 2.5kW 10T product and state MOQ, normal lead time, warranty and labeling options clearly.


Request a 3971610 Starter Motor Wholesale Quote

Send 3971610 or the complete related reference, Cummins QSB4.5 or QSB6.7 engine serial, equipment model, old-unit photographs, quantity and destination. Elecdura will quote the 12V 2.5kW 10T starter with fitment points, packaging and delivery terms.

For fleets using both QSB engine sizes, list each equipment model, engine serial and quantity separately. Elecdura can keep each order line traceable while supplying the specified physical configuration.


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