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You are here: Home » Products » Rotating Electrical » Heavy Duty Starter Motors » Starter Motors by OE Brand » Hitachi Replacement Starter Motors » 20513063 Yanmar Marine 24V 3.5kW Starter Motor Distributor

20513063 Yanmar Marine 24V 3.5kW Starter Motor Distributor

20513063 is a 24V 3.5kW 15T CW starter motor for defined Yanmar marine diesel applications. Its 75-degree two-ear drive end gives coastal distributors a physical identity that should remain attached to every vessel or engine enquiry.
  • 20513063

  • 20513063 / S25-166 / S25-166A / STH3487ML / 129612-77010 / 129612-77011

  • Elecdura

  • Available for qualified orders

  • 20 pcs

  • 7 - 15 Days

  • Neutral packaging / private-label review

  • 18 Months

  • 20513063 / S25-166 / S25-166A / STH3487ML / 129612-77010 / 129612-77011

  • Yanmar marine diesel-engine applications requiring the specified 24V 3.5kW 15T CW starter and 75-degree two-ear mounting layout

  • Confirm 24V, 3.5kW, 15T, CW, 2 × Ø13 mounting holes, Ø65 drive-end locating reference, 22 mm and 34 mm axial references, mounting orientation and terminal layout against the removed starter before volume supply.

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20513063 Yanmar Marine Starter Motor Supply for Coastal Distributors

Marine service demand is often time-sensitive and tied to a vessel schedule. A 20513063 enquiry becomes more useful when it includes the Yanmar engine plate, vessel use and port deadline, giving the distributor a clear basis for stock allocation or direct shipment.

The wider S25-166 and 129612 reference family appears in more than one housing and power description. For this unit, the 3.5kW rating, 15T pinion and 75-degree mounting layout must stay together so an industrial version is not substituted into marine stock.


 

20513063 Starter Motor Ratings and 75-Degree Mounting Drawing

The stated configuration is 24V, 3.5kW, 15T, module 2.54 and clockwise rotation. These values describe both the vessel electrical system and the drive interface, and should appear consistently on quotations, cartons and coastal warehouse records.

Primary OE / Reference

20513063

Application

Yanmar marine diesel-engine applications requiring the specified 24V 3.5kW 15T CW starter and 75-degree two-ear mounting layout

Voltage

24V

Rated Power

3.5kW

Pinion Teeth

15T

Pinion Module

2.54

Rotation

CW

OE / Cross Reference

20513063 / S25-166 / S25-166A / STH3487ML / 129612-77010 / 129612-77011

Mounting Face

2 × Ø13 mounting holes; Ø120 mounting-face reference

Drive-End References

Ø65 drive-end locating reference; 22 mm and 34 mm axial references; 75° ear orientation on the Ø120 face

20513063 Yanmar marine 24V 3.5kW 15T starter mounting dimensions

20513063 Yanmar Marine Starter Dimensions for Coastal Distributors — compare the drawing with the removed starter before placing a volume order.

Compare the two Ø13 holes, Ø120 face, Ø65 locating reference, 75-degree ear position and the 22 mm and 34 mm axial dimensions. Dry, square photographs are especially valuable because corrosion, paint and perspective can obscure the original mounting edges.


 

20513063 Marine Engine Matching for Service Parts Buyers

20513063 links to S25-166, S25-166A, STH3487ML and Yanmar 129612-77010/77011 in cross-reference searches. The full engine identity and distinct 75-degree housing remain the deciding information for this marine-focused product.

Coastal distributors can retain separate notes for vessel operators, generator packages or service yards while keeping one confirmed product definition. Add the accepted housing view and battery voltage to the customer history so emergency reorders do not rely on a partial number.


 

20513063 Coastal Stock Support and Manufacturing Video

Marine packing should keep moisture, salt exposure and impact away from the pinion, mounting ears and terminals. On arrival, inspect a sample for dry packaging, 15T drives, terminal protection and the accepted face before releasing units to port branches.

Elecdura's production video shows starter assembly and electrical testing for international orders. It helps marine buyers assess manufacturing support while their quotation continues to specify corrosion-conscious packing, port destination, required date and the exact 20513063 housing.


 

20513063 Marine Starter Motor FAQs for Yanmar Distributors

Which Yanmar marine engine details should be sent for a 20513063 request?

Provide the Yanmar engine model and serial plate, vessel or equipment type, 24V battery-bank details, all readable starter references and straight drive-end and terminal photographs. Include quantity and destination port. This allows the 20513063 request to be checked against the 15T module-2.54 drive and 75-degree two-ear mounting face.


 

Why is the 75-degree mounting face important for this product?

The 75-degree face fixes the orientation of the mounting ears, body and cable connections around the engine. A starter with the same voltage and output can still place the solenoid or pinion differently. Comparing this angle with the removed unit helps a marine distributor avoid clearance and installation problems aboard the vessel.


 

Can S25-166 and 129612-77010 be used as search references?

Yes. S25-166 and 129612-77010 can support the parts search, but they should not replace the full Yanmar application check. Keep those references with 20513063, the 24V 3.5kW rating, 15T module-2.54 pinion and 75-degree mounting face. The old unit should confirm the final physical arrangement. Carry the complete 20513063 identity onto the purchase order and carton.


 

How should a coastal warehouse protect 20513063 starter stock?

Store 20513063 units in a dry area with sealed cartons, moisture barriers and caps on the main terminals. Keep the pinion and mounting ears away from direct contact with packing hardware. For coastal warehouses, inspect cartons periodically for dampness or corrosion and retain the 75-degree marine identity on every bin label.


 

What battery-bank checks should a marine workshop complete first?

Measure each battery in the 24V bank under load, inspect parallel and series connections, check cable voltage drop and confirm the engine ground and isolator condition. Corroded marine connections can reduce cranking speed even when the starter is serviceable. Record those readings before ordering a replacement for the Yanmar installation.


 

Which incoming signs can reveal moisture or shipping damage?

Look for wet or softened cartons, damaged moisture barriers, salt residue, rust around fasteners, discolored terminals, cracked protective caps and bent mounting ears. Rotate the pinion by the permitted inspection method and compare the body with accepted photographs. Any corrosion or impact mark should be separated before stock reaches a vessel.


 

How should a vessel operator plan emergency and service spares?

Separate onboard emergency spares from shore-based service stock. Base the onboard quantity on vessel operating area, service interval and access to a replacement port; size shore stock from the number of supported Yanmar engines and replenishment lead time. Keep each 20513063 spare dry, labeled and traceable to its 75-degree configuration.


 

What information supports distributor pricing for a port delivery?

State the quantity, destination port, required arrival date, packing method and any labeling needs, together with the Yanmar engine plate and old-starter photographs. If the shipment must serve several vessels, list quantities by vessel or engine model. Elecdura can then price 20513063 and discuss delivery terms without mixing different marine configurations.


 

Request 20513063 Yanmar Marine Starter Motor Distributor Terms

Send the Yanmar marine engine plate, vessel or equipment use, battery-bank voltage, complete old-unit markings, dry front and terminal photographs, quantity, port destination and required date to info@elecdurauto.com. Elecdura will review the 20513063 match and prepare distributor terms.


 

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