Excavator Starter Motors

449-7050 12V 1.1kW 9T Starter for Perkins 403C-11 Volvo D1 D2

Q: What numbers are documented for 449-7050?

Primary Equipment Part Number: 449-7050. Published Perkins OE Number: 185086321. Published Perkins OE Number: U5MK8259. Published Bosch Manufacturer Number: 0001108181. Published Volvo OE Number: 8000672. Published JCB OE Number: 714/36700. Independent Catalog Unit: STG91228. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 449-7050 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.

449-7050 12V 1.1kW 9T Starter for Perkins 403C-11 Volvo D1 D2, OEM/reference 449-7050, 12V 1.1kW 9-Tooth Clockwise Starter Motor, product view 1

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OEM / reference449-7050

Specification12V 1.1kW 9-Tooth Clockwise Starter Motor

Catalog ID53214584

Compact starter identified by Caterpillar reference 449-7050. Independent exact-family electrical catalogs specify a 12V, 1.1kW, clockwise, 9-tooth configuration and cross-list Perkins 185086321 and U5MK8259, Bosch 0001108181, Volvo 8000672 and JCB 714/36700. Published applications include Perkins 403C-11, 103-09 and 103-10 engines plus Volvo D1-30A and D2-40A marine engines. Four matched product views show one consistent housing, solenoid, flange and pinion. Confirm the complete old-unit number, 12V system, 1.1kW rating, 9T pinion, flange, rotation and engine serial before ordering.

Product Type: Gear-reduction starter motor
System Voltage: 12V
Rated Power: 1.1kW
Pinion Teeth: 9
Rotation: Clockwise
Condition: New replacement starter motor

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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 Equipment Part Number	Caterpillar reference	449-7050
Published Perkins OE Number	Exact starter application family	185086321
Published Perkins OE Number	Exact starter application family	U5MK8259
Published Bosch Manufacturer Number	Exact starter application family	0001108181
Published Volvo OE Number	Exact starter application family	8000672
Published JCB OE Number	Exact starter application family	714/36700
Independent Catalog Unit	Replacement unit reference	STG91228

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

449-7050

Manufacturer number

0001108181

Other documented relationship

185086321
U5MK8259
8000672
714/36700
STG91228

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

Product summary

12V 1.1kW 9-Tooth Clockwise Starter Motor

Category: Excavator Starter Motors
Catalog ID: 53214584
Photo views: 4

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

3 model references

Published Perkins engines: 403C-11 / 103-09 / 103-10
Published Volvo marine engines: D1-30A / D2-40A
Fitment limitation: Confirm number, 12V, 1.1kW, 9T, rotation, flange and serial

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 449-7050

Which machines use 449-7050?

Recorded compatible model references include Published Perkins engines: 403C-11 / 103-09 / 103-10, Published Volvo marine engines: D1-30A / D2-40A, Fitment limitation: Confirm number, 12V, 1.1kW, 9T, rotation, flange and serial. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 449-7050?

Manufacturer number: 0001108181.

How do I confirm 449-7050 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.