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STG53289 Starter Motor 11.131.573 AZF4146 IS 1158 MS291 for Letrika Iskra MAHLE AZJ | 12V 4.2kW 10T CW PLGR Replacement

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PRODUCT DETAILS

STG53289 Starter Motor 11.131.573 AZF4146 IS 1158 MS291 for Letrika Iskra MAHLE AZJ | 12V 4.2kW 10T CW PLGR Replacement

Part Numbers

Arrowhead: IS1158 / MS291 / SIA0028

J&N Electrical Products: 410-29045

Letrika / Iskra: 11.131.573 / AZF4146 / IS 1158

MAHLE: 11.131.573 / AZF4146 / IS1158 / MS291

Product Description

The STG53289 Starter Motor is a new aftermarket replacement starter in the Letrika / MAHLE AZJ family. It is designed for compatible applications requiring a 12V planetary gear reduction (PLGR) starter.

The unit delivers 4.2kW of rated power and features a 10-tooth pinion, clockwise rotation, and a 39.3mm gear outside diameter. It includes a solenoid cover at the battery stud and uses unthreaded mounting holes.

Important compatibility restriction: This starter must not be used on three-cylinder engine applications. Confirm the engine cylinder count, original starter part number, mounting dimensions, and electrical connections before ordering.

Product Specifications

Property	Value
SKU / Model	STG53289
Product Type	Starter Motor
Starter Family	Letrika / MAHLE AZJ
Item Condition	New Aftermarket Part
System Voltage	12V
Rated Power	4.2kW
Rated Horsepower	5.632 HP
Rotation Direction	Clockwise (CW)
Number of Teeth	10T
Starter Type	Planetary Gear Reduction (PLGR)
Gear Outside Diameter	39.3mm / 1.547in
Mounting Hole 1 Diameter	11.1mm, unthreaded
Mounting Hole 2 Type	Unthreaded
Mounting Hole 3 Diameter	11.1mm, unthreaded
Included Feature	Solenoid cover at battery stud, M8-1.25
Engine Compatibility Restriction	Not suitable for three-cylinder engines
Estimated Net Weight	7.0kg

OEM / Cross Reference Numbers

Brand / Category	Part Numbers
Arrowhead	IS1158 / MS291 / SIA0028
J&N Electrical Products	410-29045
Letrika / Iskra	11.131.573 / AZF4146 / IS 1158
MAHLE	11.131.573 / AZF4146 / IS1158 / MS291

Compatible Applications

Letrika / MAHLE AZJ Starter Applications

Brand / Family	Model / Reference	Engine Requirement
Letrika / Iskra	AZF4146 / 11.131.573	Must not be a three-cylinder engine
MAHLE	MS291 / AZJ family	Verify original starter and engine configuration
Arrowhead	IS1158 / SIA0028	Confirm cross-reference and mounting compatibility
J&N Electrical Products	410-29045	Confirm cross-reference and mounting compatibility

PRODUCT HIGHLIGHTS

Product Highlights

High-Power Starting	Planetary Gear Reduction	Installation Details
12V system with 4.2kW rated output	10-tooth pinion with clockwise rotation	39.3mm gear OD, unthreaded mounting holes, and M8-1.25 battery-stud cover

SHIPPING

Item Details

Processing Time Orders are processed within 1-3 business days after payment confirmation

Shipping Methods DHL/UPS/ FedEx/ TNT/ Air Freight/ Sea Freight

Estimated Delivery Time Express shipping: 3-7 business days, depending on destination

Packaging Export-standard cartons with protective inner packing

Tracking Tracking number will be provided once the order is shipped

Shipping Cost Calculated based on weight, dimensions, and destination

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WARRANTY POLICY

All new aftermarket parts come with a 1-Year warranty. Quality is the first thing we consider. Check out our Warranty Assistance for more details.

SHIPPING POLICY

We offer express and standard shipping options to ensure your off-road machine gets back in action—fast and reliably. For more details, please visit our Shipping Policy .

EASY RETURN POLICY

We prioritize your satisfaction. If your order doesn't meet your expectations within 90 days, you may be eligible for a refund. See our Easy Return Policy for details.

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