The 2002 Hummer H1 has 33 electrical connector parts with verified fitment on this page — 8 part types and 11 brands, covering the 6.5L V8 DIESEL Turbocharged engine. Each part includes a manufacturer part number and application notes.
On the 2002 Hummer H1, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. Most of the listed parts are Transmission-Automatic Wiring Harness / Connector (10 parts), A/C Compressor Connector (5 parts) and Brake Light Switch Connector (5 parts). The other 5 part types cover the remaining 13 parts.
Every part on this page is matched to the 6.5L V8 DIESEL Turbocharged — the only engine offered in the 2002 Hummer H1.
The most listed brands for 2002 Hummer H1 electrical connector parts are STANDARD MOTOR PRODUCTS (7 parts), ROSTRA (6 parts) and ACDELCO (4 parts), plus 8 more brands.
5 parts on this 2002 Hummer H1 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including WELLS 1P1239 (A/C Compressor Connector) and STANDARD MOTOR PRODUCTS S749 (Brake Light Switch Connector). Click any part number to see every vehicle that part fits.
A/C Compressor Clutch Coil Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS | 37233 | 🇺🇸 US 🇨🇦 CA | Harness Adapter | View on Amazon |
| FOUR SEASONS | 37218 | 🇺🇸 US 🇨🇦 CA | Harness Adapter | View on Amazon |
| FOUR SEASONS | 37215 | 🇺🇸 US 🇨🇦 CA | 2 Terminal Malewith Diode | View on Amazon |
This table covers the harness connectors at the A/C Compressor Clutch Coil. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
FOUR SEASONS supplies the 3 A/C Compressor Clutch Coil Connector parts for the 2002 Hummer H1.
This group includes FOUR SEASONS 37233, FOUR SEASONS 37218 and FOUR SEASONS 37215.
A/C Compressor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Popular | 1P1239 | 🇺🇸 US 🇨🇦 CA | Wiring Harness Length: 8.25 In | View on Amazon |
| ACDELCO | PT2311 | 🇺🇸 US 🇨🇦 CA | GoldColor: Gray | View on Amazon |
| STANDARD MOTOR PRODUCTS | HP4490 | 🇺🇸 US 🇨🇦 CA | HandypackTerminal Type: Blade | View on Amazon |
| STANDARD MOTOR PRODUCTS | S588 | 🇺🇸 US 🇨🇦 CA | Attachment Method: Push OnConnector Shape: Oval | View on Amazon |
| UNITED MOTOR PRODUCTS | CON97 | 🇺🇸 US 🇨🇦 CA | Terminal Type: Blade | View on Amazon |
This table covers the harness connectors at the A/C Compressor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
5 A/C Compressor Connector parts are listed for the 2002 Hummer H1, from STANDARD MOTOR PRODUCTS, WELLS, ACDELCO and 1 other brand. WELLS 1P1239 carries the "Popular" badge.
Part numbers include WELLS 1P1239, ACDELCO PT2311 and STANDARD MOTOR PRODUCTS HP4490, among others listed above.
Brake Light Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | S749 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| ACDELCO | PT2362 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| ROSTRA | 610100 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| UNITED MOTOR PRODUCTS | CON151 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS | 1P1305 | 🇺🇸 US 🇨🇦 CA | Wiring Harness Length: 8.41 In | View on Amazon |
This table covers the harness connectors at the Brake Light Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
5 Brake Light Switch Connector parts for the 2002 Hummer H1 come from 5 brands — STANDARD MOTOR PRODUCTS, ACDELCO, ROSTRA and 2 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS S749.
Listed part numbers: STANDARD MOTOR PRODUCTS S749, ACDELCO PT2362 and ROSTRA 610100, plus the other parts above.
Fuel Shutoff Solenoid Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | PT2309 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| STANDARD MOTOR PRODUCTS | HP4750 | 🇺🇸 US 🇨🇦 CA | HandypackConnector Shape: Oval | View on Amazon |
| STANDARD MOTOR PRODUCTS | S578 | 🇺🇸 US 🇨🇦 CA | Connector Shape: OvalGauge: 18 | View on Amazon |
This table covers the harness connectors at the Fuel Shutoff Solenoid. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 Fuel Shutoff Solenoid Connector parts are listed for the 2002 Hummer H1, from STANDARD MOTOR PRODUCTS and ACDELCO.
This group includes ACDELCO PT2309, STANDARD MOTOR PRODUCTS HP4750 and STANDARD MOTOR PRODUCTS S578.
On-Board Diagnostic (OBD) Port Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 1P1474 | 🇺🇸 US 🇨🇦 CA | Universal Type | View on Amazon |
This table covers the harness connectors at the On-Board Diagnostic (OBD) Port. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2002 Hummer H1 — WELLS 1P1474.
Repair Harness
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP | JE34 | 🇺🇸 US 🇨🇦 CA | External Repair/Test Harness (20 Pins, White Wires) | View on Amazon |
This table covers the Repair harnesses.
One part is listed for the 2002 Hummer H1 — ATP JE34.
Temperature Sender / Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | TX3A | 🇺🇸 US 🇨🇦 CA | Wiring Harness Length (mm): 158.75Black | View on Amazon |
| ACDELCO | PT2386 | 🇺🇸 US 🇨🇦 CA | GoldShape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS | HP3840 | 🇺🇸 US 🇨🇦 CA | HandypackWiring Harness Length (mm): 158.75 | View on Amazon |
| ULTRA-POWER | 2111500 | 🇺🇸 US 🇨🇦 CA | Coolant Temperature Sensor Connector | View on Amazon |
| WALKER PRODUCTS | 2111500 | 🇺🇸 US 🇨🇦 CA | Terminal Quantity: 2Includes O-Ring | View on Amazon |
This table covers the harness connectors at the Temperature Sender / Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
5 Temperature Sender / Sensor Connector parts are listed for the 2002 Hummer H1, from STANDARD MOTOR PRODUCTS, ACDELCO, ULTRA-POWER and 1 other brand. STANDARD MOTOR PRODUCTS TX3A carries the "Popular" badge.
This group includes STANDARD MOTOR PRODUCTS TX3A, ACDELCO PT2386 and STANDARD MOTOR PRODUCTS HP3840 and the remaining parts above.
Transmission-Automatic Wiring Harness / Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA Popular | 3500032 | 🇺🇸 US 🇨🇦 CA | Internal Wire Harness | View on Amazon |
| ROSTRA Popular | 3509000 | 🇺🇸 US 🇨🇦 CA | Internal & External Harness Kit | View on Amazon |
| ATP | JE15 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ATP | JE22 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| PIONEER | 772038 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ROSTRA | 3500033 | 🇺🇸 US 🇨🇦 CA | External Wire Harness | View on Amazon |
| ROSTRA | 3500096 | 🇺🇸 US 🇨🇦 CA | GM Wire Harness Repair Kit For MLPS Switch (OEM # 24221125)11 Pin Type | View on Amazon |
| ROSTRA | 3500083 | 🇺🇸 US 🇨🇦 CA | GM Universal External Repair & Test Harness 20 Pins & White Wires | View on Amazon |
| SKP | SK645050 | 🇺🇸 US 🇨🇦 CA | External Wire Harness | View on Amazon |
| SKP | SK645049 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the wiring-harness connectors at the Transmission-Automatic. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.
10 Transmission-Automatic Wiring Harness / Connector parts for the 2002 Hummer H1 come from 4 brands — ROSTRA, ATP, SKP and 1 other brand. The "Popular" part is ROSTRA 3500032.
Buying Electrical Connector Parts for a 2002 Hummer H1
On this vehicle, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules.
- 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, use heat-shrink crimp connectors rather than twist-and-tape for any pigtail splice, especially outside the cabin.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Transmission-Automatic Wiring Harness / Connector and A/C Compressor Connector .
Frequently Asked Questions
How many electrical connector parts fit the 2002 Hummer H1?
Our catalog currently lists 33 electrical connector parts for the 2002 Hummer H1 across 8 subcategories and 11 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 connector problems on a 2002 Hummer H1?
Common symptoms include intermittent faults that move when the harness is wiggled, green corrosion inside a plug, or melted connector housings near heat sources. 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, use heat-shrink crimp connectors rather than twist-and-tape for any pigtail splice, especially outside the cabin.
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 2002 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 2002 Hummer H1?
Every part on this page is matched to the 6.5L V8 DIESEL Turbocharged engine. Then match the connector by terminal count and keyway, not just appearance — many families look identical but will not lock. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2002 Hummer H1
Electrical Connector Parts for Other Hummer H1 Years
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