GM Genuine Parts 12742701 Multiport Fuel Injector
- Multi port valve, single injector
- 18mm thread, threaded inlet, SAE outlet
- 2 ports
- Stainless steel, machined finish
- 3.68 oz, 4.3 x 1.9 x 1.1 inches
- 24 months, unlimited miles parts-only warranty
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A genuine GM multiport fuel injector sold as a single unit with a long parts warranty. The listing names no vehicles, so match the part number to your engine before ordering.
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ASIN: B0FR577X79Model: 12742701Category: Fuel Injectors
Overview
Not an aftermarket copy, this is a GM Genuine Parts injector described as an original equipment part installed during production or validated by General Motors. It is a single stainless steel unit with a threaded inlet and an SAE outlet.
Original equipment origin and a two year, unlimited mile parts warranty are the reasons to buy it. The limitation is the lack of vehicle fit information, as well as flow rate and connector style.
Who it's for
Owners replacing one failed injector with a factory-spec part, who have the number from the old unit, will be well served. Buyers who need a matched set, or tuned flow data, should check other listings.
Pros and cons
- Genuine GM original equipment part
- Parts warranty with unlimited miles
- Stainless steel construction
- Multiport valve design
- Vehicle fit list not given
- Flow rate unstated
- Warranty covers parts only
Performance notes
A multiport injector meters fuel through its valve into the intake port, and the match to the original calibration governs idle quality and fuel trim. The listing gives connection and thread details but no flow data, so an exact part number match is the check that matters.
Specifications
| Brand | GENUINE PARTS |
|---|---|
| Model | 12742701 |
| Dimensions & fit | |
| Thread size | 18mm |
| Item dimensions | 4.3 x 1.9 x 1.1 inches |
| Item weight | 3.68 ounces |
| Construction & materials | |
| Material | Stainless Steel |
| Finish | Machined |
| Warranty & support | |
| Warranty | 24 Months/Unlimited Miles Limited Warranty (Parts Only) |
| Other details | |
| Valve type | Multi Port Valve |
| Inlet connection | Threaded |
| Outlet connection | SAE |
| Ports | 2 |
| Thread type | Automotive Standard |
Frequently asked questions
What is included with the GM Genuine Parts 12742701 injector?
The listing shows one fuel injector kit, counted as a single piece. No seals, connectors or clips are listed.
Is the GM 12742701 injector the same as ACDelco?
The description says some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment parts.
Which vehicles does it fit?
The listing names none. Match part number 12742701 to the injector in your engine.