The 2001 Hummer H1 has 30 electrical parts with verified fitment on this page — 8 part types and 19 brands, covering the 6.5L V8 DIESEL Turbocharged engine. Each part includes a manufacturer part number and application notes.
The electrical system on the 2001 Hummer H1 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 (10 parts), Speed Sensor (6 parts) and Alternator / Generator End Bearing (4 parts). The other 5 part types cover the remaining 10 parts.
The 2001 Hummer H1 came with a single engine, the 6.5L V8 DIESEL Turbocharged, and every part is verified against it.
19 brands supply electrical parts for the 2001 Hummer H1, led by TERREPOWER (3 parts), FVP (3 parts) and WELLS (3 parts), plus 16 more brands. Quality grades include Remanufactured, Standard Replacement and New.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2001 Hummer H1. 3 parts have it, including WAI GLOBAL 8219N (Alternator / Generator) and NTK AU0137 (Speed Sensor). Each part number opens a page with every vehicle that part fits.
Alternator / Generator
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAI GLOBAL Popular | 8219N | 🇺🇸 US 🇨🇦 CA | with Standard EquipmentCS144 Series | View on Amazon |
| BOSCH | AL8577N | 🇺🇸 US 🇨🇦 CA | 124 Amps | View on Amazon |
| PURE ENERGY | 8219604N | 🇺🇸 US 🇨🇦 CA | 140 Amps | View on Amazon |
| TERREPOWER | N82195 | 🇺🇸 US 🇨🇦 CA | 140 Amps | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAI GLOBAL Popular | 8219R | 🇺🇸 US 🇨🇦 CA | Power Select Reman | View on Amazon |
| ACDELCO | 3342452A | 🇺🇸 US 🇨🇦 CA | GoldRemanufactured | View on Amazon |
| FVP | 8203604 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| PURE ENERGY | 8203604 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| REMY | 21095 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| TERREPOWER | 82035 | 🇺🇸 US 🇨🇦 CA | RemanufacturedSquare connector | 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.
10 Alternator / Generator parts for the 2001 Hummer H1 come from 7 brands — WAI GLOBAL, PURE ENERGY, TERREPOWER and 4 other brands. The "Popular" part is WAI GLOBAL 8219N.
The New section lists 4 options from WAI GLOBAL, BOSCH, PURE ENERGY and 1 other brand — brand-new units rather than rebuilt ones. WAI GLOBAL 8219N is listed in this group.
The Remanufactured section lists 6 options from WAI GLOBAL, ACDELCO, FVP and 3 other brands — factory-rebuilt units with new wear components. WAI GLOBAL 8219R is listed in this group.
Alternator / Generator End Bearing
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS | RB60002RS | 🇺🇸 US 🇨🇦 CA | with AC-Delco Alternatorwith 124 Amps Alternator | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NB100CC4 | 🇺🇸 US 🇨🇦 CA | 124 Ampswith Acdelco Alternator | View on Amazon |
| NATIONAL | 100CC4 | 🇺🇸 US 🇨🇦 CA | with AC-Delco Alternatorwith 124 Amps Alternator | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SCHAEFFLER | 60002RSR | 🇺🇸 US 🇨🇦 CA | Rearwith Delco Alternator | View on Amazon |
This table covers the bearings in the alternator housing. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.
4 Alternator / Generator End Bearing parts are listed for the 2001 Hummer H1, from WJB / INMOTION PARTS, BCA, NATIONAL and 1 other brand.
In the Economy grade, WJB / INMOTION PARTS supplies 1 part: the catalog's value-priced group. A representative part number is WJB / INMOTION PARTS RB60002RS.
The Standard Replacement section lists 2 options from BCA and NATIONAL — built to original-equipment specification. BCA NB100CC4 is listed in this group.
1 ungrouped part is not assigned to a grade, with the same engine-level match.
Listed part numbers: WJB / INMOTION PARTS RB60002RS, BCA NB100CC4 and NATIONAL 100CC4, plus the other parts above.
Battery
AGM (Extended Life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA | 9A78 | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| FVP | 78AGMG | 🇺🇸 US 🇨🇦 CA | Platinum AGMBCI Group: 78 | View on Amazon |
| P1MAX | PMAGM78 | 🇺🇸 US 🇨🇦 CA | BCI Group 78 AGM775 CCA | View on Amazon |
Performance AGM (Extended Life + Increased Power)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FULLRIVER | FT82578 | 🇺🇸 US 🇨🇦 CA | AGMBCI Group 78 | 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.
4 Battery parts are listed for the 2001 Hummer H1, from DEKA, FVP, P1MAX and 1 other brand.
The AGM (Extended Life) section lists 3 options from DEKA, FVP and P1MAX — grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. DEKA 9A78 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 FT82578 is listed in this group.
This group includes DEKA 9A78, FVP 78AGMG and P1MAX PMAGM78 and the remaining parts above.
Battery Terminal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA | 00351 | 🇺🇸 US 🇨🇦 CA | Universal Terminal for side terminal batteries | View on Amazon |
This table covers the terminals and clamps that connect cables to the battery posts.
One part is listed for the 2001 Hummer H1 — DEKA 00351.
Speed Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP | JE18 | 🇺🇸 US 🇨🇦 CA | Transmission SpeedAutomatic Trans. | View on Amazon |
| ULTRA-POWER | 5S5404 | 🇺🇸 US 🇨🇦 CA | Outputwith Automatic Trans | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NTK Popular | AU0137 | 🇺🇸 US 🇨🇦 CA | Transmission SpeedOutput | View on Amazon |
| PIONEER | 771091 | 🇺🇸 US 🇨🇦 CA | Fits Transmission SpeedInput | View on Amazon |
| PIONEER | 771092 | 🇺🇸 US 🇨🇦 CA | Transmission SpeedAutomatic Trans. | View on Amazon |
| WELLS | 5S5404 | 🇺🇸 US 🇨🇦 CA | Transmission SpeedOutput | 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.
6 Speed Sensor parts are listed for the 2001 Hummer H1, from PIONEER, ATP, ULTRA-POWER and 2 other brands. NTK AU0137 carries the "Popular" badge.
Economy: 2 parts, from ATP and ULTRA-POWER. A representative part number is ATP JE18.
The Standard Replacement section: 4 options from PIONEER, NTK and WELLS. NTK AU0137 is listed in this group.
Listed part numbers: NTK AU0137, ATP JE18 and ULTRA-POWER 5S5404, plus the other parts above.
Starter Motor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP | 6608S | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| REMY | 26041 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| TERREPOWER | 6608 | 🇺🇸 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.
3 Starter Motor parts for the 2001 Hummer H1 come from 3 brands — FVP, REMY and TERREPOWER.
This group includes FVP 6608S, REMY 26041 and TERREPOWER 6608.
Starter Solenoid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 1M1394 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Starter solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid.
This group shows a single part: WELLS 1M1394.
Voltage Regulator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 1V1055 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the regulators that control alternator output voltage.
One part is listed for the 2001 Hummer H1 — WELLS 1V1055.
Buying Electrical Parts for a 2001 Hummer H1
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.
- Confirm you have the 6.5L V8 DIESEL Turbocharged engine — every part on this page is matched to it.
- 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 Speed Sensor .
Frequently Asked Questions
How many electrical parts fit the 2001 Hummer H1?
Our catalog currently lists 30 electrical parts for the 2001 Hummer H1 across 8 subcategories and 19 brands, covering the 6.5L V8 DIESEL Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical problems on a 2001 Hummer H1?
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 2001 Hummer H1 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 2001 Hummer H1?
Every part on this page is matched to the 6.5L V8 DIESEL Turbocharged engine. 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 2001 Hummer H1
Electrical Parts for Other Hummer H1 Years
Switch vehicle or jump to a subcategory
Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.