The 1990 Geo Tracker has 121 electrical connector parts with verified fitment on this page — 33 part types and 10 brands, covering the 1.6L L4 engine. Each part includes a manufacturer part number and application notes.
On the 1990 Geo Tracker, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. 27 parts of the 121 listed are Temperature Sender / Sensor Connector (11 parts), A/C Refrigerant Pressure Switch Connector (8 parts) and Blower Motor Control Module / Resistor Connector (8 parts). The other 30 part types cover the remaining 94 parts.
The 1990 Geo Tracker came with a single engine, the 1.6L L4, and every part is verified against it.
10 brands supply electrical connector parts for the 1990 Geo Tracker, led by STANDARD MOTOR PRODUCTS (51 parts), WELLS (25 parts) and UNITED MOTOR PRODUCTS (19 parts), plus 7 more brands.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1990 Geo Tracker. 16 parts have it, including WELLS 1P1789 (A/C Condenser Fan Motor Relay Connector) and ACDELCO PT2293 (A/C Refrigerant Pressure Switch Connector). Each part number opens a page with every vehicle that part fits.
A/C Compressor Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS | 37257 | 🇺🇸 US 🇨🇦 CA | 4 Terminal Malewith Male Lock Tab | View on Amazon |
This table covers the harness connectors at the A/C Compressor Relay. 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 1990 Geo Tracker — FOUR SEASONS 37257.
A/C Condenser Fan Motor Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Popular | 1P1789 | 🇺🇸 US 🇨🇦 CA | Terminal Quantity: 4Wire Quantity: 8 | View on Amazon |
| FOUR SEASONS | 37257 | 🇺🇸 US 🇨🇦 CA | 4 Terminal. Malewith Male Lock Tab | View on Amazon |
| STANDARD MOTOR PRODUCTS | HP4145 | 🇺🇸 US 🇨🇦 CA | HandypackConnector Shape: Rectangle | View on Amazon |
| STANDARD MOTOR PRODUCTS | S1519 | 🇺🇸 US 🇨🇦 CA | Connector Shape: RectangleContact Terminal Material: Metal | View on Amazon |
| UNITED MOTOR PRODUCTS | CON24 | 🇺🇸 US 🇨🇦 CA | Terminal Gender: FemaleTerminal Quantity: 4 | View on Amazon |
This table covers the harness connectors at the A/C Condenser Fan Motor Relay. 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 Condenser Fan Motor Relay Connector parts are listed for the 1990 Geo Tracker, from STANDARD MOTOR PRODUCTS, WELLS, FOUR SEASONS and 1 other brand. WELLS 1P1789 carries the "Popular" badge.
Listed part numbers: WELLS 1P1789, FOUR SEASONS 37257 and STANDARD MOTOR PRODUCTS HP4145, plus the other parts above.
A/C Condenser Fan Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS | 37227 | 🇺🇸 US 🇨🇦 CA | 2 Terminal Male90 Degree Locator | View on Amazon |
| ROSTRA | 610397 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS | S536 | 🇺🇸 US 🇨🇦 CA | Connector Shape: RoundWeather Resistant: No | View on Amazon |
| WELLS | 1P1014 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the A/C Condenser Fan 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.
4 A/C Condenser Fan Switch Connector parts are listed for the 1990 Geo Tracker, from FOUR SEASONS, ROSTRA, STANDARD MOTOR PRODUCTS and 1 other brand.
Part numbers include FOUR SEASONS 37227, ROSTRA 610397 and STANDARD MOTOR PRODUCTS S536, among others listed above.
A/C Refrigerant Pressure Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular | PT2293 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| FOUR SEASONS Popular | 37227 | 🇺🇸 US 🇨🇦 CA | 2 Terminal Male90 Degree Locator | View on Amazon |
| FOUR SEASONS | 37222 | 🇺🇸 US 🇨🇦 CA | 120 Degree Locator2 Terminal Male | View on Amazon |
| ROSTRA | 610269 | 🇺🇸 US 🇨🇦 CA | Compressor MountedHigh Pressure Cut Off | View on Amazon |
| STANDARD MOTOR PRODUCTS | S538 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS | S536 | 🇺🇸 US 🇨🇦 CA | Connector Shape: RoundWeather Resistant: No | View on Amazon |
| WELLS | 1P1014 | 🇺🇸 US 🇨🇦 CA | Keyway At 9:00 O'clock PositionCut-Off | View on Amazon |
| WELLS | 1P1013 | 🇺🇸 US 🇨🇦 CA | Keyway At 7:00 O'clock PositionCut-Off | View on Amazon |
This table covers the harness connectors at the A/C Refrigerant Pressure 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.
8 A/C Refrigerant Pressure Switch Connector parts are listed for the 1990 Geo Tracker, from FOUR SEASONS, STANDARD MOTOR PRODUCTS, WELLS and 2 other brands. ACDELCO PT2293 carries the "Popular" badge.
Listed part numbers: ACDELCO PT2293, FOUR SEASONS 37227 and FOUR SEASONS 37222, plus the other parts above.
Blower Motor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | HP4360 | 🇺🇸 US 🇨🇦 CA | Handypack | View on Amazon |
| STANDARD MOTOR PRODUCTS | S617 | 🇺🇸 US 🇨🇦 CA | Connector Shape: Rectangle | View on Amazon |
| UNITED MOTOR PRODUCTS | CON109 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the Blower Motor. 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 Blower Motor Connector parts for the 1990 Geo Tracker come from 2 brands — STANDARD MOTOR PRODUCTS and UNITED MOTOR PRODUCTS.
Listed part numbers: STANDARD MOTOR PRODUCTS HP4360, STANDARD MOTOR PRODUCTS S617 and UNITED MOTOR PRODUCTS CON109.
Blower Motor Control Module / Resistor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | S1519 | 🇺🇸 US 🇨🇦 CA | Connector Shape: RectangleContact Terminal Material: Metal | View on Amazon |
| WELLS Popular | 1P1789 | 🇺🇸 US 🇨🇦 CA | Terminal Quantity: 4Wire Quantity: 8 | View on Amazon |
| FOUR SEASONS | 37257 | 🇺🇸 US 🇨🇦 CA | 4 Terminal Malewith Male Lock Tab | View on Amazon |
| HOLSTEIN | 2HAR0001 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ROSTRA | 610069 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS | HP4145 | 🇺🇸 US 🇨🇦 CA | HandypackConnector Shape: Rectangle | View on Amazon |
| STANDARD MOTOR PRODUCTS | S1519HT | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| UNITED MOTOR PRODUCTS | CON24 | 🇺🇸 US 🇨🇦 CA | Terminal Gender: FemaleTerminal Quantity: 4 | View on Amazon |
This table covers the connectors at the blower resistor or control module. 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.
8 Blower Motor Control Module / Resistor Connector parts are listed for the 1990 Geo Tracker, from STANDARD MOTOR PRODUCTS, WELLS, FOUR SEASONS and 3 other brands. STANDARD MOTOR PRODUCTS S1519 carries the "Popular" badge.
This group includes STANDARD MOTOR PRODUCTS S1519, WELLS 1P1789 and FOUR SEASONS 37257 and the remaining parts above.
Cigarette Lighter Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | PT2322 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| STANDARD MOTOR PRODUCTS | HP3830 | 🇺🇸 US 🇨🇦 CA | Handypack | View on Amazon |
| STANDARD MOTOR PRODUCTS | S635 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| UNITED MOTOR PRODUCTS | CON118 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the Cigarette Lighter. 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.
4 Cigarette Lighter Connector parts are listed for the 1990 Geo Tracker, from STANDARD MOTOR PRODUCTS, ACDELCO and UNITED MOTOR PRODUCTS.
This group includes ACDELCO PT2322, STANDARD MOTOR PRODUCTS HP3830 and STANDARD MOTOR PRODUCTS S635 and the remaining parts above.
Computer Control Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | HP4145 | 🇺🇸 US 🇨🇦 CA | HandypackConnector Shape: Rectangle | View on Amazon |
| STANDARD MOTOR PRODUCTS | S1519 | 🇺🇸 US 🇨🇦 CA | Connector Shape: RectangleContact Terminal Material: Metal | View on Amazon |
| UNITED MOTOR PRODUCTS | CON24 | 🇺🇸 US 🇨🇦 CA | Terminal Gender: FemaleTerminal Quantity: 4 | View on Amazon |
| WELLS | 1P1789 | 🇺🇸 US 🇨🇦 CA | Terminal Quantity: 4Wire Quantity: 8 | View on Amazon |
This table covers the harness connectors at the Computer Control Relay. 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.
4 Computer Control Relay Connector parts are listed for the 1990 Geo Tracker, from STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS and WELLS.
Listed part numbers: STANDARD MOTOR PRODUCTS HP4145, STANDARD MOTOR PRODUCTS S1519 and UNITED MOTOR PRODUCTS CON24, plus the other parts above.
Early Fuel Evaporation (EFE) Control Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | HP4145 | 🇺🇸 US 🇨🇦 CA | HandypackConnector Shape: Rectangle | View on Amazon |
| STANDARD MOTOR PRODUCTS | S1519 | 🇺🇸 US 🇨🇦 CA | Connector Shape: RectangleContact Terminal Material: Metal | View on Amazon |
| UNITED MOTOR PRODUCTS | CON24 | 🇺🇸 US 🇨🇦 CA | Terminal Gender: FemaleTerminal Quantity: 4 | View on Amazon |
| WELLS | 1P1789 | 🇺🇸 US 🇨🇦 CA | Terminal Quantity: 4Wire Quantity: 8 | View on Amazon |
This table covers the harness connectors at the Early Fuel Evaporation (EFE) Control Relay. 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.
4 Early Fuel Evaporation (EFE) Control Relay Connector parts for the 1990 Geo Tracker come from 3 brands — STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS and WELLS.
This group includes STANDARD MOTOR PRODUCTS HP4145, STANDARD MOTOR PRODUCTS S1519 and UNITED MOTOR PRODUCTS CON24 and the remaining parts above.
Flasher Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S957 | 🇺🇸 US 🇨🇦 CA | Terminal Quantity: 2 | View on Amazon |
This table covers the harness connectors at the Flasher. 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 1990 Geo Tracker — STANDARD MOTOR PRODUCTS S957.
Fuel Injection Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | HP4145 | 🇺🇸 US 🇨🇦 CA | HandypackConnector Shape: Rectangle | View on Amazon |
| STANDARD MOTOR PRODUCTS | S1519 | 🇺🇸 US 🇨🇦 CA | Connector Shape: RectangleContact Terminal Material: Metal | View on Amazon |
| UNITED MOTOR PRODUCTS | CON24 | 🇺🇸 US 🇨🇦 CA | Terminal Gender: FemaleTerminal Quantity: 4 | View on Amazon |
| WELLS | 1P1789 | 🇺🇸 US 🇨🇦 CA | Terminal Quantity: 4Wire Quantity: 8 | View on Amazon |
This table covers the harness connectors at the Fuel Injection Relay. 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.
4 Fuel Injection Relay Connector parts for the 1990 Geo Tracker come from 3 brands — STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS and WELLS.
Listed part numbers: STANDARD MOTOR PRODUCTS HP4145, STANDARD MOTOR PRODUCTS S1519 and UNITED MOTOR PRODUCTS CON24, plus the other parts above.
Fuel Pump / Circuit Opening Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | HP4145 | 🇺🇸 US 🇨🇦 CA | HandypackConnector Shape: Rectangle | View on Amazon |
| STANDARD MOTOR PRODUCTS | S1519 | 🇺🇸 US 🇨🇦 CA | Connector Shape: RectangleContact Terminal Material: Metal | View on Amazon |
| UNITED MOTOR PRODUCTS | CON24 | 🇺🇸 US 🇨🇦 CA | Terminal Gender: FemaleTerminal Quantity: 4 | View on Amazon |
| WELLS | 1P1789 | 🇺🇸 US 🇨🇦 CA | Terminal Quantity: 4Wire Quantity: 8 | View on Amazon |
This table covers the harness connectors at the Fuel Pump / Circuit Opening Relay. 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.
4 Fuel Pump / Circuit Opening Relay Connector parts are listed for the 1990 Geo Tracker, from STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS and WELLS.
Part numbers include STANDARD MOTOR PRODUCTS HP4145, STANDARD MOTOR PRODUCTS S1519 and UNITED MOTOR PRODUCTS CON24, among others listed above.
Fuel Pump Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S641 | 🇺🇸 US 🇨🇦 CA | Color Code Pinkwith 2 Female Terminals | View on Amazon |
| STANDARD MOTOR PRODUCTS | S639 | 🇺🇸 US 🇨🇦 CA | Whitewith 1 Female Terminals | View on Amazon |
| UNITED MOTOR PRODUCTS | CON120 | 🇺🇸 US 🇨🇦 CA | Fits WHIT | View on Amazon |
| WELLS | 1P1054 | 🇺🇸 US 🇨🇦 CA | with 1 Terminal(s) | View on Amazon |
This table covers the harness connectors at the Fuel Pump. 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.
4 Fuel Pump Connector parts for the 1990 Geo Tracker come from 3 brands — STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS and WELLS.
Listed part numbers: STANDARD MOTOR PRODUCTS S641, STANDARD MOTOR PRODUCTS S639 and UNITED MOTOR PRODUCTS CON120, plus the other parts above.
Fuel Sending Unit Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 1P1054 | 🇺🇸 US 🇨🇦 CA | with 1 Terminal(s) | View on Amazon |
This table covers the harness connectors at the Fuel Sending Unit. 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.
This group shows a single part: WELLS 1P1054.
Headlamp Dimmer Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | PT1930 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| STANDARD MOTOR PRODUCTS | HP4520 | 🇺🇸 US 🇨🇦 CA | Handy PackBlack | View on Amazon |
| STANDARD MOTOR PRODUCTS | S606 | 🇺🇸 US 🇨🇦 CA | Wiring Harness Length (mm): 184.15black | View on Amazon |
| UNITED MOTOR PRODUCTS | CON104 | 🇺🇸 US 🇨🇦 CA | Headlamp Dimmer | View on Amazon |
This table covers the harness connectors at the Headlamp Dimmer 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.
4 Headlamp Dimmer Switch Connector parts for the 1990 Geo Tracker come from 3 brands — STANDARD MOTOR PRODUCTS, ACDELCO and UNITED MOTOR PRODUCTS.
This group includes ACDELCO PT1930, STANDARD MOTOR PRODUCTS HP4520 and STANDARD MOTOR PRODUCTS S606 and the remaining parts above.
Headlamp Wiring Harness / Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | LWH108 | 🇺🇸 US 🇨🇦 CA | Blue Streak | View on Amazon |
This table covers the wiring-harness connectors at the Headlamp. 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.
One part is listed for the 1990 Geo Tracker — STANDARD MOTOR PRODUCTS LWH108.
Horn Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | HP4750 | 🇺🇸 US 🇨🇦 CA | HandypackConnector Shape: Oval | View on Amazon |
| ACDELCO | PT2309 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| STANDARD MOTOR PRODUCTS | S578 | 🇺🇸 US 🇨🇦 CA | Connector Shape: OvalGauge: 18 | View on Amazon |
| UNITED MOTOR PRODUCTS | CON92 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS | 1P1044 | 🇺🇸 US 🇨🇦 CA | Connector Shape: OblongTerminal Quantity: 2 | View on Amazon |
This table covers the harness connectors at the Horn. 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 Horn Connector parts are listed for the 1990 Geo Tracker, from STANDARD MOTOR PRODUCTS, ACDELCO, UNITED MOTOR PRODUCTS and 1 other brand. STANDARD MOTOR PRODUCTS HP4750 carries the "Popular" badge.
This group includes STANDARD MOTOR PRODUCTS HP4750, ACDELCO PT2309 and STANDARD MOTOR PRODUCTS S578 and the remaining parts above.
Horn Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Popular | 1P1010 | 🇺🇸 US 🇨🇦 CA | 3 terminals | View on Amazon |
| ROSTRA | 610560 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS | HP4145 | 🇺🇸 US 🇨🇦 CA | HandypackConnector Shape: Rectangle | View on Amazon |
| STANDARD MOTOR PRODUCTS | S1519 | 🇺🇸 US 🇨🇦 CA | Connector Shape: RectangleContact Terminal Material: Metal | View on Amazon |
| UNITED MOTOR PRODUCTS | CON24 | 🇺🇸 US 🇨🇦 CA | Terminal Gender: FemaleTerminal Quantity: 4 | View on Amazon |
This table covers the harness connectors at the Horn Relay. 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 Horn Relay Connector parts for the 1990 Geo Tracker come from 4 brands — STANDARD MOTOR PRODUCTS, WELLS, ROSTRA and 1 other brand. The "Popular" part is WELLS 1P1010.
This group includes WELLS 1P1010, ROSTRA 610560 and STANDARD MOTOR PRODUCTS HP4145 and the remaining parts above.
HVAC Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | HP4145 | 🇺🇸 US 🇨🇦 CA | HandypackConnector Shape: Rectangle | View on Amazon |
| STANDARD MOTOR PRODUCTS | S1519 | 🇺🇸 US 🇨🇦 CA | Connector Shape: RectangleContact Terminal Material: Metal | View on Amazon |
| UNITED MOTOR PRODUCTS | CON24 | 🇺🇸 US 🇨🇦 CA | Terminal Gender: FemaleTerminal Quantity: 4 | View on Amazon |
| WELLS | 1P1789 | 🇺🇸 US 🇨🇦 CA | Terminal Quantity: 4Wire Quantity: 8 | View on Amazon |
This table covers the harness connectors at the HVAC Relay. 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.
4 HVAC Relay Connector parts are listed for the 1990 Geo Tracker, from STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS and WELLS.
Part numbers include STANDARD MOTOR PRODUCTS HP4145, STANDARD MOTOR PRODUCTS S1519 and UNITED MOTOR PRODUCTS CON24, among others listed above.
Multi-Function Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 1P1789 | 🇺🇸 US 🇨🇦 CA | Terminal Quantity: 4Wire Quantity: 8 | View on Amazon |
This table covers the harness connectors at the Multi-Function Relay. 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 1990 Geo Tracker — WELLS 1P1789.
Oil Pressure Sender / Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | S1634 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| UNITED MOTOR PRODUCTS Popular | CON120 | 🇺🇸 US 🇨🇦 CA | Fits WHIT | View on Amazon |
| SKP | SKS638 | 🇺🇸 US 🇨🇦 CA | Fits Blackor 4 Terminal Female | View on Amazon |
| STANDARD MOTOR PRODUCTS | S641 | 🇺🇸 US 🇨🇦 CA | Color Code Gray and Bluewith 2 Female Terminals | View on Amazon |
| STANDARD MOTOR PRODUCTS | S639 | 🇺🇸 US 🇨🇦 CA | Whitewith 1 Female Terminals | View on Amazon |
| WELLS | 1P1054 | 🇺🇸 US 🇨🇦 CA | with 1 Terminal(s) | View on Amazon |
This table covers the harness connectors at the Oil Pressure Sender / 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.
6 Oil Pressure Sender / Switch Connector parts are listed for the 1990 Geo Tracker, from STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS, SKP and 1 other brand. STANDARD MOTOR PRODUCTS S1634 carries the "Popular" badge.
Listed part numbers: STANDARD MOTOR PRODUCTS S1634, UNITED MOTOR PRODUCTS CON120 and SKP SKS638, plus the other parts above.
Radio Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| METRA | 701782 | 🇺🇸 US 🇨🇦 CA | TURBOWireWire Harness | View on Amazon |
This table covers the harness connectors at the Radio. 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 1990 Geo Tracker — METRA 701782.
Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | HP4145 | 🇺🇸 US 🇨🇦 CA | HandypackConnector Shape: Rectangle | View on Amazon |
| STANDARD MOTOR PRODUCTS | S1519 | 🇺🇸 US 🇨🇦 CA | Connector Shape: RectangleContact Terminal Material: Metal | View on Amazon |
This table covers the harness connectors at the Relay. 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.
STANDARD MOTOR PRODUCTS supplies both parts for the 1990 Geo Tracker.
This group includes STANDARD MOTOR PRODUCTS HP4145 and STANDARD MOTOR PRODUCTS S1519.
Self-Leveling Unit Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | PT2340 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| WELLS | 1P1373 | 🇺🇸 US 🇨🇦 CA | with 3 Terminals | View on Amazon |
This table covers the harness connectors at the Self-Leveling Unit. 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.
2 Self-Leveling Unit Connector parts are listed for the 1990 Geo Tracker, from ACDELCO and WELLS.
Part numbers include ACDELCO PT2340 and WELLS 1P1373.
Shift Indicator Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | HP4145 | 🇺🇸 US 🇨🇦 CA | HandypackConnector Shape: Rectangle | View on Amazon |
| STANDARD MOTOR PRODUCTS | S1519 | 🇺🇸 US 🇨🇦 CA | Connector Shape: RectangleContact Terminal Material: Metal | View on Amazon |
| UNITED MOTOR PRODUCTS | CON24 | 🇺🇸 US 🇨🇦 CA | Terminal Gender: FemaleTerminal Quantity: 4 | View on Amazon |
| WELLS | 1P1789 | 🇺🇸 US 🇨🇦 CA | Terminal Quantity: 4Wire Quantity: 8 | View on Amazon |
This table covers the harness connectors at the Shift Indicator Relay. 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.
4 Shift Indicator Relay Connector parts for the 1990 Geo Tracker come from 3 brands — STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS and WELLS.
Part numbers include STANDARD MOTOR PRODUCTS HP4145, STANDARD MOTOR PRODUCTS S1519 and UNITED MOTOR PRODUCTS CON24, among others listed above.
Shift Interlock Control Module Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | HP4145 | 🇺🇸 US 🇨🇦 CA | HandypackConnector Shape: Rectangle | View on Amazon |
| STANDARD MOTOR PRODUCTS | S1519 | 🇺🇸 US 🇨🇦 CA | Connector Shape: RectangleContact Terminal Material: Metal | View on Amazon |
| UNITED MOTOR PRODUCTS | CON24 | 🇺🇸 US 🇨🇦 CA | Terminal Gender: FemaleTerminal Quantity: 4 | View on Amazon |
This table covers the harness connectors at the Shift Interlock Control Module. 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 Shift Interlock Control Module Connector parts for the 1990 Geo Tracker come from 2 brands — STANDARD MOTOR PRODUCTS and UNITED MOTOR PRODUCTS.
Listed part numbers: STANDARD MOTOR PRODUCTS HP4145, STANDARD MOTOR PRODUCTS S1519 and UNITED MOTOR PRODUCTS CON24.
Temperature Sender / Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| UNITED MOTOR PRODUCTS Popular | CON79 | 🇺🇸 US 🇨🇦 CA | Sending Unit Switch Connector | View on Amazon |
| WELLS Popular | 1P1347 | 🇺🇸 US 🇨🇦 CA | Wire Gauge Measurement: 18 | View on Amazon |
| WELLS Popular | 1P1002 | 🇺🇸 US 🇨🇦 CA | Centered Index with Release | View on Amazon |
| FOUR SEASONS | 70005 | 🇺🇸 US 🇨🇦 CA | 2 Terminal FemaleFull Skirt | View on Amazon |
| FOUR SEASONS | 70017 | 🇺🇸 US 🇨🇦 CA | 2 Terminal FemaleHalf Skirt | View on Amazon |
| ROSTRA | 610085 | 🇺🇸 US 🇨🇦 CA | Centered Index Slot without Release | View on Amazon |
| ROSTRA | 610049 | 🇺🇸 US 🇨🇦 CA | Centered Index Slot with Release | View on Amazon |
| STANDARD MOTOR PRODUCTS | HP4585 | 🇺🇸 US 🇨🇦 CA | Handypack | View on Amazon |
| STANDARD MOTOR PRODUCTS | S554 | 🇺🇸 US 🇨🇦 CA | Color Code Black and Greenwith 1 Female Terminals | View on Amazon |
| STANDARD MOTOR PRODUCTS | S696 | 🇺🇸 US 🇨🇦 CA | Length (In): 1 | View on Amazon |
| WALKER PRODUCTS | 2701034 | 🇺🇸 US 🇨🇦 CA | 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.
11 Temperature Sender / Sensor Connector parts for the 1990 Geo Tracker come from 6 brands — STANDARD MOTOR PRODUCTS, WELLS, FOUR SEASONS and 3 other brands. The "Popular" part is UNITED MOTOR PRODUCTS CON79.
Trailer Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular | TC177 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular | TC424 | 🇺🇸 US 🇨🇦 CA | Trailer/Vehicle Side: Vehicle and Trailer Side | View on Amazon |
| STANDARD MOTOR PRODUCTS | TC423 | 🇺🇸 US 🇨🇦 CA | 6 Way | View on Amazon |
| WELLS | 4T1097 | 🇺🇸 US 🇨🇦 CA | 4 Pole Flat Connector Extension, Provides an additional 18` length of wire. | View on Amazon |
| WELLS | 4T1185 | 🇺🇸 US 🇨🇦 CA | Taillight Converter, Used on vehicles which have a separate bulb for turn signals. | View on Amazon |
| WELLS | 4T1165 | 🇺🇸 US 🇨🇦 CA | 7 Pin RV Type to 4 Pin Flat Adapter48" Lead Wire | View on Amazon |
This table covers the trailer-lighting connectors at the hitch. 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.
6 Trailer Connector parts are listed for the 1990 Geo Tracker, from WELLS, STANDARD MOTOR PRODUCTS and ACDELCO. ACDELCO TC177 carries the "Popular" badge.
This group includes ACDELCO TC177, STANDARD MOTOR PRODUCTS TC424 and STANDARD MOTOR PRODUCTS TC423 and the remaining parts above.
Trailer Tow Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S721 | 🇺🇸 US 🇨🇦 CA | Wire Gauge (GA): 10, 12, 16 | View on Amazon |
| WELLS | 1P1260 | 🇺🇸 US 🇨🇦 CA | with 4 Terminals | View on Amazon |
This table covers the harness connectors at the Trailer Tow Relay. 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.
2 Trailer Tow Relay Connector parts for the 1990 Geo Tracker come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.
This group includes STANDARD MOTOR PRODUCTS S721 and WELLS 1P1260.
Trailer Wire Converter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | TC466 | 🇺🇸 US 🇨🇦 CA | with Converterwith 4 Way | View on Amazon |
This table covers the Trailer Wire converters. Typical signs include a sulfur smell, rattling substrate, or an efficiency code. Confirm CARB vs Federal certification in the notes before ordering.
One part is listed for the 1990 Geo Tracker — STANDARD MOTOR PRODUCTS TC466.
Voltage Regulator Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular | PT1929 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular | S604 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ROSTRA | 610482 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS | HP4390 | 🇺🇸 US 🇨🇦 CA | Handypack | View on Amazon |
| UNITED MOTOR PRODUCTS | CON102 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS | 1P1369 | 🇺🇸 US 🇨🇦 CA | Terminal Gender: Female | View on Amazon |
This table covers the harness connectors at the Voltage Regulator. 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.
6 Voltage Regulator Connector parts are listed for the 1990 Geo Tracker, from STANDARD MOTOR PRODUCTS, ACDELCO, ROSTRA and 2 other brands. ACDELCO PT1929 carries the "Popular" badge.
This group includes ACDELCO PT1929, STANDARD MOTOR PRODUCTS S604 and ROSTRA 610482 and the remaining parts above.
Washer Pump Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S740 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the harness connectors at the Washer Pump. 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.
This group shows a single part: STANDARD MOTOR PRODUCTS S740.
Window Motor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| UNITED MOTOR PRODUCTS | CON107 | 🇺🇸 US 🇨🇦 CA | with Locking Tab | View on Amazon |
This table covers the harness connectors at the Window Motor. 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 1990 Geo Tracker — UNITED MOTOR PRODUCTS CON107.
Buying Electrical Connector Parts for a 1990 Geo Tracker
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 1.6L L4 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: Temperature Sender / Sensor Connector and A/C Refrigerant Pressure Switch Connector .
Frequently Asked Questions
How many electrical connector parts fit the 1990 Geo Tracker?
Our catalog currently lists 121 electrical connector parts for the 1990 Geo Tracker across 33 subcategories and 10 brands, covering the 1.6L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical connector problems on a 1990 Geo Tracker?
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 1990 Geo Tracker 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 1990 Geo Tracker?
Every part on this page is matched to the 1.6L L4 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 1990 Geo Tracker
Electrical Connector Parts for Other Geo Tracker Years
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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.