Excavator Starter Motors

Starter Motor 428000-6780 12V 19-Tooth for Acura MDX

Q: What numbers are documented for 428000-6780?

Primary Part Number: 428000-6780. Manufacturer / OEM Reference: 31200-R8A-A01. Manufacturer / OEM Reference: 31200-R8A-A01RM. Manufacturer / OEM Reference: 31200-RKG-A01. Manufacturer / OEM Reference: 31200-RYE-A71. Manufacturer / OEM Reference: 31200-RYE-A71RM. Manufacturer / OEM Reference: 31200RKGA01RM. Manufacturer / OEM Reference: 428000-8750. Manufacturer / OEM Reference: 428000-9360. Manufacturer / OEM Reference: 06312-R8A-505RM. Manufacturer / OEM Reference: 06312-RYE-506RM. Manufacturer / OEM Reference: DUDVB. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 428000-6780 before ordering?

Match the complete part number, compare the connector or mounting arrangement with the product photos, and confirm the machine or engine model and serial range. Send clear photos of the original unit when requesting a quote.

Brand illustration · Exact product photo available on request.

OEM / reference428000-6780

Specification12V Starter Motor

Catalog ID91003355

Starter motor identified by primary reference 428000-6780. The exact-reference catalog records design PMOSGR, voltage 12V, pinion teeth 19. Recorded application: Acura MDX 2010-2013; Engine V6 3.7L 3664cc. Confirm the complete number, mounting, terminals, rotation and pinion teeth against the original starter before ordering. The displayed EexcavaStart package is a catalog illustration, not a photograph of the supplied product.

Product Type: Starter Motor
Design: PMOSGR
Voltage: 12V
Pinion Teeth: 19
Condition: New replacement part
Gallery Representation: EexcavaStart neutral packaging illustration; exact product photo available on request

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Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.

Part-number relationships

Relationship	Reference family	Number
Primary Part Number	Primary identity used for this catalog page	428000-6780
Manufacturer / OEM Reference	Listed under Acura	31200-R8A-A01
Manufacturer / OEM Reference	Listed under the exact-reference catalog	31200-R8A-A01RM
Manufacturer / OEM Reference	Listed under the exact-reference catalog	31200-RKG-A01
Manufacturer / OEM Reference	Listed under the exact-reference catalog	31200-RYE-A71
Manufacturer / OEM Reference	Listed under the exact-reference catalog	31200-RYE-A71RM
Manufacturer / OEM Reference	Listed under the exact-reference catalog	31200RKGA01RM
Manufacturer / OEM Reference	Listed under the exact-reference catalog	428000-8750
Manufacturer / OEM Reference	Listed under the exact-reference catalog	428000-9360
Manufacturer / OEM Reference	Listed under Honda	06312-R8A-505RM
Manufacturer / OEM Reference	Listed under the exact-reference catalog	06312-RYE-506RM
Manufacturer / OEM Reference	Listed under the exact-reference catalog	DUDVB
Catalog Cross-Reference	Exact-reference catalog number	19182N
Additional Source Reference - Verify Configuration	Retained from the supplied catalog; compare the original unit	031200-RYE-A71
Additional Source Reference - Verify Configuration	Retained from the supplied catalog; compare the original unit	2010-2013
Additional Source Reference - Verify Configuration	Retained from the supplied catalog; compare the original unit	2011
Additional Source Reference - Verify Configuration	Retained from the supplied catalog; compare the original unit	2013
Additional Source Reference - Verify Configuration	Retained from the supplied catalog; compare the original unit	2013-2016
Additional Source Reference - Verify Configuration	Retained from the supplied catalog; compare the original unit	31200-R8A

Product fitment guide

Part numbers and compatible models

Quickly compare the reference number and recorded machine applications. Use the original photos and the checklist before ordering.

Part identification

Reference numbers

Primary number

428000-6780

Manufacturer number

31200-R8A-A01
31200-R8A-A01RM
31200-RKG-A01
31200-RYE-A71
31200-RYE-A71RM
31200RKGA01RM
428000-8750
428000-9360
06312-R8A-505RM
06312-RYE-506RM
DUDVB

Other documented relationship

19182N
031200-RYE-A71
2010-2013
2011
2013
2013-2016
31200-R8A

Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.

Product summary

12V Starter Motor

Category: Excavator Starter Motors
Catalog ID: 91003355
Photo views: 1

Before ordering

Confirm these details

Confirm voltage and power rating against the original starter nameplate.
Compare mounting-hole pattern, flange position and overall body orientation.
Confirm pinion tooth count and rotation where those values are specified.
Verify the engine model and machine serial range before ordering.

Machine fitment

Compatible model references

8 model references

Acura MDX: 2010-2013; Engine V6 3.7L 3664cc
Acura RDX: 2013-2015; Engine V6 3.5L 3471cc
Acura RDX: 2016-2018; Engine V6 3.5L 3471cc J35Z2
Acura RL: 2011-2012; Engine V6 3.7L 3664cc
Acura ZDX: 2010-2013; Engine V6 3.7L 3664cc
Honda Odyssey: 2011-2013; Engine V6 3.5L 3471cc
Catalog coverage: Acura (2010-2018) ** Honda (2011-2013)
Fitment limitation: Confirm the exact number, nameplate, mounting, terminal layout, rotation and pinion teeth against the original starter before shipment

Compatibility lists identify searchable model families, not every production serial range. Confirm the original part number and machine serial number before purchase.

Quick fitment answers

Common questions about 428000-6780

Which machines use 428000-6780?

Recorded compatible model references include Acura MDX: 2010-2013; Engine V6 3.7L 3664cc, Acura RDX: 2013-2015; Engine V6 3.5L 3471cc, Acura RDX: 2016-2018; Engine V6 3.5L 3471cc J35Z2, Acura RL: 2011-2012; Engine V6 3.7L 3664cc, Acura ZDX: 2010-2013; Engine V6 3.7L 3664cc, Honda Odyssey: 2011-2013; Engine V6 3.5L 3471cc, Catalog coverage: Acura (2010-2018) ** Honda (2011-2013), Fitment limitation: Confirm the exact number, nameplate, mounting, terminal layout, rotation and pinion teeth against the original starter before shipment. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 428000-6780?

Manufacturer number: 31200-R8A-A01, 31200-R8A-A01RM, 31200-RKG-A01, 31200-RYE-A71, 31200-RYE-A71RM, 31200RKGA01RM.

How do I confirm 428000-6780 before ordering?

Confirm voltage and power rating against the original starter nameplate. Compare mounting-hole pattern, flange position and overall body orientation. Confirm pinion tooth count and rotation where those values are specified. Send clear photos of the original unit and connector layout when requesting a quote.