The 1981 Triumph TR7 has 16 electrical connector parts with verified fitment on this page — 5 part types and 9 brands, covering the 2.0L L4 engine. Each part includes a manufacturer part number and application notes.
On the 1981 Triumph TR7, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. 14 parts of the 16 listed are Fuel Injector Connector (5 parts), Throttle Position Sensor (TPS) Connector (5 parts) and Temperature Sender / Sensor Connector (4 parts). The other 2 part types cover the remaining 2 parts.
Every part on this page is matched to the 2.0L L4 — the only engine offered in the 1981 Triumph TR7.
The most listed brands for 1981 Triumph TR7 electrical connector parts are STANDARD MOTOR PRODUCTS (7 parts), FOUR SEASONS (2 parts) and ACDELCO (1 part), plus 6 more brands.
2 parts on this 1981 Triumph TR7 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including STANDARD MOTOR PRODUCTS HP3980 (Fuel Injector Connector) and WELLS 1P1421 (Throttle Position Sensor (TPS) Connector). Click any part number to see every vehicle that part fits.
Fuel Injector Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | HP3980 | 🇺🇸 US 🇨🇦 CA | HandypackConnector Shape: Rectangular | View on Amazon |
| ACDELCO | PT2384 | 🇺🇸 US 🇨🇦 CA | GoldShape: Rectangle | View on Amazon |
| GB REMANUFACTURING | 5194 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HOLSTEIN | 2HAR0055 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS | SK25 | 🇺🇸 US 🇨🇦 CA | Connector Shape: RectangularGauge: 20 Gauge | View on Amazon |
This table covers the harness connectors at the Fuel Injector. 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 Fuel Injector Connector parts are listed for the 1981 Triumph TR7, from STANDARD MOTOR PRODUCTS, ACDELCO, GB REMANUFACTURING and 1 other brand. STANDARD MOTOR PRODUCTS HP3980 carries the "Popular" badge.
This group includes STANDARD MOTOR PRODUCTS HP3980, ACDELCO PT2384 and GB REMANUFACTURING 5194 and the remaining parts above.
Oil Pressure Sender / Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S1634 | 🇺🇸 US 🇨🇦 CA | Black | 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.
This group shows a single part: STANDARD MOTOR PRODUCTS S1634.
Temperature Sender / Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS | 70005 | 🇺🇸 US 🇨🇦 CA | 2 Terminal FemaleFull Skirt | View on Amazon |
| FOUR SEASONS | 70017 | 🇺🇸 US 🇨🇦 CA | 2 Terminal FemaleHalf Skirt | View on Amazon |
| STANDARD MOTOR PRODUCTS | HP4585 | 🇺🇸 US 🇨🇦 CA | Handypack | View on Amazon |
| STANDARD MOTOR PRODUCTS | S696 | 🇺🇸 US 🇨🇦 CA | Length (In): 1 | 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.
4 Temperature Sender / Sensor Connector parts are listed for the 1981 Triumph TR7, from FOUR SEASONS and STANDARD MOTOR PRODUCTS.
Listed part numbers: FOUR SEASONS 70005, FOUR SEASONS 70017 and STANDARD MOTOR PRODUCTS HP4585, plus the other parts above.
Throttle Position Sensor (TPS) Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Popular | 1P1421 | 🇺🇸 US 🇨🇦 CA | Wiring Harness Length: 9.43 In | View on Amazon |
| ROSTRA | 610105 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS | HP3975 | 🇺🇸 US 🇨🇦 CA | Handy PackBlack | View on Amazon |
| STANDARD MOTOR PRODUCTS | S745 | 🇺🇸 US 🇨🇦 CA | Connector Shape: Rectangleblack | View on Amazon |
| UNITED MOTOR PRODUCTS | CON149 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the Throttle Position Sensor (TPS). 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 Throttle Position Sensor (TPS) Connector parts for the 1981 Triumph TR7 come from 4 brands — STANDARD MOTOR PRODUCTS, WELLS, ROSTRA and 1 other brand. The "Popular" part is WELLS 1P1421.
Part numbers include WELLS 1P1421, ROSTRA 610105 and STANDARD MOTOR PRODUCTS HP3975, among others listed above.
Washer Pump Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAI GLOBAL | 399002 | 🇺🇸 US 🇨🇦 CA | AccessoryUniversal Switch for Washer Pump System | 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.
One part is listed for the 1981 Triumph TR7 — WAI GLOBAL 399002.
Buying Electrical Connector Parts for a 1981 Triumph TR7
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 2.0L 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: Fuel Injector Connector and Throttle Position Sensor (TPS) Connector .
Frequently Asked Questions
How many electrical connector parts fit the 1981 Triumph TR7?
Our catalog currently lists 16 electrical connector parts for the 1981 Triumph TR7 across 5 subcategories and 9 brands, covering the 2.0L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical connector problems on a 1981 Triumph TR7?
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 1981 Triumph TR7 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 1981 Triumph TR7?
Every part on this page is matched to the 2.0L 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 1981 Triumph TR7
Electrical Connector Parts for Other Triumph TR7 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.