This page lists 44 electrical parts for the 2012 International Workstar, across 7 part types, covering all 6 engine options (10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 12.4L L6 DIESEL Turbocharged, 7.6L L6 DIESEL and more). Every part shows its brand, manufacturer part number and fitment notes.
The electrical system on the 2012 International Workstar covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. The largest groups are Alternator / Generator (25 parts), Starter Motor (9 parts) and Battery (6 parts). The other 4 part types cover the remaining 4 parts.
The 2012 International Workstar was sold with 6 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
8 brands supply electrical parts for the 2012 International Workstar, led by TERREPOWER (30 parts), BOSCH (4 parts) and DORMAN (4 parts), plus 5 more brands. Quality grades include Remanufactured, New and AGM.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2012 International Workstar. 10 parts have it, including TERREPOWER 90014720 (Alternator / Generator) and ACDELCO 31XAGMT (Battery). Each part number opens a page with every vehicle that part fits.
Alternator / Generator
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH Fits: 10.5L L6 DIESEL Turbocharged | AL9961LH | 🇺🇸 US 🇨🇦 CA | Does Not Include Pulley | View on Amazon |
| BOSCH Fits: 10.5L L6 DIESEL Turbocharged, 7.6L L6 DIESEL | AL9962SB | 🇺🇸 US 🇨🇦 CA | Does Not Include Pulley | View on Amazon |
| BOSCH Fits: 8.7L L6 DIESEL Turbocharged | AL9960LH | 🇺🇸 US | Does Not Include Pulley | View on Amazon |
| TERREPOWER Fits: 10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 8.7L L6 DIESEL Turbocharged | 90014723N | 🇺🇸 US 🇨🇦 CA | Does Not Include Pulley | View on Amazon |
| TERREPOWER Fits: 10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 8.7L L6 DIESEL Turbocharged | 90014720N | 🇺🇸 US 🇨🇦 CA | Does Not Include Pulley | View on Amazon |
| TERREPOWER Fits: 10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 8.7L L6 DIESEL Turbocharged | 90014516N | 🇺🇸 US 🇨🇦 CA | Does Not Include Pulley | View on Amazon |
| TERREPOWER Fits: 7.6L L6 DIESEL, 8.7L L6 DIESEL Turbocharged | 90014576N | 🇺🇸 US 🇨🇦 CA | Does Not Include Pulley | View on Amazon |
| TERREPOWER Fits: 7.6L L6 DIESEL | 90014722N | 🇺🇸 US 🇨🇦 CA | Does Not Include Pulley | View on Amazon |
| TERREPOWER Fits: 7.6L L6 DIESEL | 90014725N | 🇺🇸 US 🇨🇦 CA | Does Not Include Pulley | View on Amazon |
| TERREPOWER Fits: 7.6L L6 DIESEL | 90014515N | 🇺🇸 US 🇨🇦 CA | Does Not Include Pulley | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TERREPOWER Popular Fits: 10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 8.7L L6 DIESEL Turbocharged | 90014720 | 🇺🇸 US 🇨🇦 CA | RemanufacturedDoes Not Include Pulley | View on Amazon |
| TERREPOWER Popular Fits: 10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 8.7L L6 DIESEL Turbocharged | 90014723 | 🇺🇸 US 🇨🇦 CA | RemanufacturedDoes Not Include Pulley | View on Amazon |
| TERREPOWER Popular Fits: 10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 8.7L L6 DIESEL Turbocharged | 90014516 | 🇺🇸 US 🇨🇦 CA | RemanufacturedDoes Not Include Pulley | View on Amazon |
| TERREPOWER Popular Fits: 7.6L L6 DIESEL | 90014471 | 🇺🇸 US 🇨🇦 CA | RemanufacturedDoes Not Include Pulley | View on Amazon |
| TERREPOWER Popular Fits: 7.6L L6 DIESEL | 90014509 | 🇺🇸 US 🇨🇦 CA | RemanufacturedDoes Not Include Pulley | View on Amazon |
| TERREPOWER Popular Fits: 7.6L L6 DIESEL | 90014515 | 🇺🇸 US 🇨🇦 CA | RemanufacturedDoes Not Include Pulley | View on Amazon |
| TERREPOWER Popular Fits: 8.7L L6 DIESEL Turbocharged | 90014505 | 🇺🇸 US | RemanufacturedDoes Not Include Pulley | View on Amazon |
| TERREPOWER Fits: 10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged | 90014699 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| TERREPOWER Fits: 10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged | 90014693 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| TERREPOWER Fits: 10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged | 90014748 | 🇺🇸 US 🇨🇦 CA | RemanufacturedDoes Not Include Pulley | View on Amazon |
| TERREPOWER Fits: 7.6L L6 DIESEL, 8.7L L6 DIESEL Turbocharged | 90014576 | 🇺🇸 US 🇨🇦 CA | RemanufacturedDoes Not Include Pulley | View on Amazon |
| TERREPOWER Fits: 7.6L L6 DIESEL | 90014722 | 🇺🇸 US 🇨🇦 CA | RemanufacturedDoes Not Include Pulley | View on Amazon |
| TERREPOWER Fits: 7.6L L6 DIESEL | 90014725 | 🇺🇸 US 🇨🇦 CA | RemanufacturedDoes Not Include Pulley | View on Amazon |
| TERREPOWER Fits: 8.7L L6 DIESEL Turbocharged | 90014508 | 🇺🇸 US | RemanufacturedDoes Not Include Pulley | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH Fits: 9.3L L6 DIESEL Turbocharged | AL9961LH | 🇺🇸 US 🇨🇦 CA | Does Not Include Pulley | View on Amazon |
This table covers the alternators that charge the battery and run the electrical load. Typical signs include dim lights at idle, a battery lamp, or a growl from the charging pulley. Load-test the battery and inspect the belt and grounds — a bad ground mimics a failed alternator.
25 Alternator / Generator parts for the 2012 International Workstar come from 2 brands — TERREPOWER and BOSCH. The "Popular" part is TERREPOWER 90014720.
The New section lists 10 options from TERREPOWER and BOSCH — brand-new units rather than rebuilt ones. BOSCH AL9961LH is listed in this group.
The Remanufactured section lists 14 options from TERREPOWER — factory-rebuilt units with new wear components. TERREPOWER 90014720 is listed in this group.
1 further part sits outside the graded sections, with the same engine-level match.
Battery
AGM (Extended Life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 7.6L L6 DIESEL, 8.7L L6 DIESEL Turbocharged, 9.3L L6 DIESEL Turbocharged | 31XAGMT | 🇺🇸 US 🇨🇦 CA | AGMBCI Group: 31 | View on Amazon |
| FVP Popular Fits: 10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 7.6L L6 DIESEL, 8.7L L6 DIESEL Turbocharged, 9.3L L6 DIESEL Turbocharged | P31TAGM | 🇺🇸 US 🇨🇦 CA | Platinum AGMBCI Group: 31T | View on Amazon |
| EXIDE Fits: 10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 7.6L L6 DIESEL, 8.7L L6 DIESEL Turbocharged, 9.3L L6 DIESEL Turbocharged | RF31D | 🇺🇸 US 🇨🇦 CA | RoadforceBCI Group 31 | View on Amazon |
| EXIDE Fits: 10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 7.6L L6 DIESEL, 8.7L L6 DIESEL Turbocharged, 9.3L L6 DIESEL Turbocharged | XRF31D | 🇺🇸 US 🇨🇦 CA | RoadforceBCI Group 31 | View on Amazon |
| MOTORCRAFT Fits: 10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 7.6L L6 DIESEL, 8.7L L6 DIESEL Turbocharged, 9.3L L6 DIESEL Turbocharged | BHAGM31 | 🇺🇸 US 🇨🇦 CA | Fleettough/ExtraBCI Group: 31 | View on Amazon |
Performance AGM (Extended Life + Increased Power)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FULLRIVER Fits: 10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 7.6L L6 DIESEL, 8.7L L6 DIESEL Turbocharged, 9.3L L6 DIESEL Turbocharged | FT110031ST | 🇺🇸 US 🇨🇦 CA | BCI Group 31T(Length X Width X Height) 12.99 In x 6.81 In x 9.13 In | View on Amazon |
This table covers the batteries listed by group size and specification. Typical signs include slow cranking, a battery lamp, or a no-start after the vehicle sat overnight. Confirm group size and terminal layout in the notes. Clean the posts and the ground before condemning the battery.
6 Battery parts are listed for the 2012 International Workstar, from EXIDE, ACDELCO, FVP and 2 other brands. ACDELCO 31XAGMT carries the "Popular" badge.
The AGM (Extended Life) section lists 5 options from EXIDE, ACDELCO, FVP and 1 other brand — grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. ACDELCO 31XAGMT is listed in this group.
The Performance AGM (Extended Life + Increased Power) section lists 1 option from FULLRIVER — grouped under the catalog's "Performance AGM (Extended Life + Increased Power)" designation — the notes column spells out what sets them apart. FULLRIVER FT110031ST is listed in this group.
This group includes ACDELCO 31XAGMT, FVP P31TAGM and EXIDE RF31D and the remaining parts above.
Battery Cover
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 7.6L L6 DIESEL, 8.7L L6 DIESEL Turbocharged, 9.3L L6 DIESEL Turbocharged | 2425103 | 🇺🇸 US 🇨🇦 CA | 7400 | View on Amazon |
This table covers the Battery covers.
This group shows a single part: DORMAN 2425103.
Battery Tray
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 7.6L L6 DIESEL, 8.7L L6 DIESEL Turbocharged, 9.3L L6 DIESEL Turbocharged | 2425109 | 🇺🇸 US 🇨🇦 CA | with 25 In. Battery Box | View on Amazon |
This table covers the trays the battery sits in.
One part is listed for the 2012 International Workstar — DORMAN 2425109.
Horn Actuator Pad
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 7.6L L6 DIESEL, 8.7L L6 DIESEL Turbocharged, 9.3L L6 DIESEL Turbocharged | 9245123 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the Horn Actuator pads. Typical signs include squeal, grind, or a wear-indicator scrape. Replace pads as an axle set and inspect the rotor or drum they ride on.
One part is listed for the 2012 International Workstar — DORMAN 9245123.
Speed Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged | 9047544 | 🇺🇸 US 🇨🇦 CA | with Fuller Manual TransmissionTransmission Speed | View on Amazon |
This table covers the speed sensors on the transmission, transfer case or ABS ring. Typical signs include a dead speedometer, harsh transmission shifts, or a code for vehicle speed. Inspect the tone wheel and the connector before replacing the sensor.
One part is listed for the 2012 International Workstar — DORMAN 9047544.
Starter Motor
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TERREPOWER Fits: 10.5L L6 DIESEL Turbocharged, 7.6L L6 DIESEL, 9.3L L6 DIESEL Turbocharged | 91014760N | 🇺🇸 US 🇨🇦 CA | Delco Unit39MT | View on Amazon |
| TERREPOWER Fits: 10.8L L6 DIESEL Turbocharged | 91014759N | 🇺🇸 US | Delco Unit39MT | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TERREPOWER Popular Fits: 7.6L L6 DIESEL, 9.3L L6 DIESEL Turbocharged, 10.5L L6 DIESEL Turbocharged | 91014760 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| TERREPOWER Fits: 10.5L L6 DIESEL Turbocharged, 7.6L L6 DIESEL, 9.3L L6 DIESEL Turbocharged | 91047850 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| TERREPOWER Fits: 10.5L L6 DIESEL Turbocharged | 91273554 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| TERREPOWER Fits: 10.8L L6 DIESEL Turbocharged | 91014759 | 🇺🇸 US | Remanufactured | View on Amazon |
| TERREPOWER Fits: 10.8L L6 DIESEL Turbocharged | 91273423 | 🇺🇸 US | Remanufactured | View on Amazon |
| TERREPOWER Fits: 7.6L L6 DIESEL, 9.3L L6 DIESEL Turbocharged | 91014628 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| TERREPOWER Fits: 7.6L L6 DIESEL, 9.3L L6 DIESEL Turbocharged | 91273566 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
This table covers the starter motors that crank the engine. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor.
9 Starter Motor parts for the 2012 International Workstar come from TERREPOWER. The "Popular" part is TERREPOWER 91014760.
The New section: 2 options from TERREPOWER. TERREPOWER 91014760N is listed in this group.
The Remanufactured section: 7 options from TERREPOWER. TERREPOWER 91014760 is listed in this group.
This group includes TERREPOWER 91014760, TERREPOWER 91014760N and TERREPOWER 91014759N and the remaining parts above.
Buying Electrical Parts for a 2012 International Workstar
On this vehicle, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors.
- Match the engine first. Every electrical part here is engine-specific; each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, clean or renew the battery terminals and grounds with any charging-system repair.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Alternator / Generator and Starter Motor .
Frequently Asked Questions
How many electrical parts fit the 2012 International Workstar?
Our catalog currently lists 44 electrical parts for the 2012 International Workstar across 7 subcategories and 8 brands, covering all 6 engine options (10.5L L6 DIESEL Turbocharged, 10.8L L6 DIESEL Turbocharged, 12.4L L6 DIESEL Turbocharged, 7.6L L6 DIESEL and more). Each part is matched to the engine(s) it fits.
Do electrical parts differ between 2012 International Workstar engines?
Yes. Every electrical part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of electrical problems on a 2012 International Workstar?
Common symptoms include slow cranking on cold mornings, a battery light that flickers, dim lights at idle, or a check-engine code pointing at a sensor circuit. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, clean or renew the battery terminals and grounds with any charging-system repair.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2012 International Workstar was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2012 International Workstar?
First match the engine — each row shows which engine(s) the part fits. Then test before replacing — a failed alternator and a bad ground can look identical, and sensors are frequently condemned for wiring faults. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2012 International Workstar
Electrical Parts for Other International Workstar Years
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