STG51020 Starter Motor 3E7863 207-1532 for Freightliner Peterbilt Mack 12V 11T CW-Products-TIANGUAN-Page 1

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STG51020 Starter Motor 3E7863 207-1532 for Freightliner Peterbilt Mack 12V 11T CW

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ITEMNO： STG51020

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PRODUCT DETAILS

STG51020 Starter Motor for Freightliner, Peterbilt, Mack and More – 3E7863, 207-1532 Replacement

Part Numbers

Brand	OEM / Cross Reference
AC Delco	323-871
Arrowhead (OEM)	D10461053, IS1178, MS61
Arrowhead	SDR0159, 410-12506
Cargo	112089
Caterpillar	3E7863, 207-1532
Cummins	3610942
Delco	10461042, 10461053, 10461126, 10461411, 10478932, 10479017, 10479104, 1990490
Dixie New	201-42119
Dixie	TS-1603, TS-1693
EMS	6511N
Family	42MT
J & N	410-12167, 410-12167R, 410-12506
Lester	6511, 6555
LetriKa (Iskra)	IS1178
Mahle	MS61
Minnpar	57-1667
NSA	STR-4207
PIC	142-368, 142-368D
RCP	23373A
Remy Light Duty	61424
WAI	2-2703-DR
Wilson HD	91-01-4508
Wilson	91-01-4508
Wood Auto	STR4200

Product Description

The STG51020 starter motor is an aftermarket replacement unit designed for compatible heavy-duty truck and engine applications, including Freightliner, Peterbilt, Mack, and other commercial vehicles using compatible starter configurations. It operates at 12 volts and features an 11-tooth pinion, clockwise rotation, and direct-drive (DD) design for reliable engine cranking.

This starter is associated with the 42MT starter family and replaces multiple OEM and aftermarket reference numbers, including Caterpillar 3E7863 and 207-1532, Delco, Arrowhead, Lester, Wilson, WAI, and other cross-reference numbers. It is suitable for demanding commercial vehicle applications where dependable starting performance is required.

Before installation, verify the original starter's voltage, pinion tooth count, rotation, mounting configuration, and OEM reference number to ensure proper fitment.

Product Specifications

Specification	Details
Product Name	Starter Motor
Model	42MT
Part Number	STG51020
Unit Type	Starter
Condition	Aftermarket Part
Voltage	12V
Rotation	CW
Pinion Teeth	11
Starter Type	DD (Direct Drive)
Compatible Engine	Caterpillar 3406 / Compatible Heavy-Duty Engines
Application	Freightliner, Peterbilt, Mack and Other Heavy-Duty Trucks
Reference Number	3E7863, 207-1532
Cross Reference	D10461053, IS1178, MS61, 10461042, 10461053, 10461126, 10461411
Weight	Estimated

Packaging Information	Estimated Details
Net Weight (NW)	Approx. 25kg (18.7 lb)
Gross Weight (GW)	Approx.25.8kg (20.9 lb)
Package Dimensions	Approx. 35 × 25 × 25 cm
Packaging	1 × Starter Motor, securely packed in protective packaging

PRODUCT HIGHLIGHTS

Highlights

Feature	Description	Benefit
12V Direct Drive	42MT-style direct-drive starter with 11-tooth pinion	Provides dependable engine cranking
Heavy-Duty Application	Designed for compatible commercial truck and engine applications	Supports demanding starting conditions
Multiple Cross References	Replaces numerous Caterpillar, Delco, Arrowhead, Lester, Wilson, and WAI numbers	Simplifies replacement identification

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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