★★★★★
January 4, 2026
Oil pressure sending unit
Works good and was an exact fit
Replaces
About TRQ:
TRQ is a trusted brand dedicated to making every repair a success story by combining premium parts with easy installation. Each TRQ part is engineered by a team of automotive experts to meet or exceed OEM standards, delivering enhanced performance and maximum longevity. With rigorous in-house testing, the brand ensures superior fit and function across every product line. TRQ also provides customers with best-in-class, step-by-step installation videos—so you can complete repairs with confidence, whether you're a first-time DIYer or an industry professional.
Returns: Parts with electrical components cannot be returned once installed.
Attention California Customers:
WARNING: This product can expose you to chemicals including Lead and Lead Compounds, which are known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
This part fits 25 vehicles spanning 1999-2002.
| Year | Make | Model | Description |
|---|---|---|---|
| 2002 | Cadillac | Escalade | Cadillac Escalade with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 2002 | Chevrolet | Avalanche 1500 | Chevrolet Avalanche 1500 with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 1999-2002 | Chevrolet | Camaro | Chevrolet Camaro V8 5.7L with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 1999-2002 | Chevrolet | Silverado 1500 | Chevrolet Silverado 1500 V8 5.3L with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 1999-2002 | Chevrolet | Silverado 1500 | Chevrolet Silverado 1500 V8 4.8L with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 2001-2002 | Chevrolet | Silverado 1500 HD | Chevrolet Silverado 1500 HD with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 1999-2002 | Chevrolet | Silverado 2500 | Chevrolet Silverado 2500 with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 2001-2002 | Chevrolet | Silverado 2500 HD | Chevrolet Silverado 2500 HD V8 6.0L with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 2001-2002 | Chevrolet | Silverado 3500 | Chevrolet Silverado 3500 V8 6.0L with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 2000-2002 | Chevrolet | Suburban 1500 | Chevrolet Suburban 1500 with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 2000-2002 | Chevrolet | Suburban 2500 | Chevrolet Suburban 2500 V8 6.0L with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 2000 | Chevrolet | Tahoe | Chevrolet Tahoe with Oil Gauge without Z71 Package Oil Pressure Switch TRQ SWA41749 |
| 2001-2002 | Chevrolet | Tahoe | Chevrolet Tahoe with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 1999-2002 | GMC | Sierra 1500 | GMC Sierra 1500 V8 5.3L with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 1999-2002 | GMC | Sierra 1500 | GMC Sierra 1500 V8 4.8L with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 2001-2002 | GMC | Sierra 1500 HD | GMC Sierra 1500 HD with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 1999-2002 | GMC | Sierra 2500 | GMC Sierra 2500 with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 2001-2002 | GMC | Sierra 2500 HD | GMC Sierra 2500 HD V8 6.0L with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 2001-2002 | GMC | Sierra 3500 | GMC Sierra 3500 V8 6.0L with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 2000 | GMC | Yukon | GMC Yukon SLE with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 2000 | GMC | Yukon | GMC Yukon SLT with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 2001-2002 | GMC | Yukon | GMC Yukon with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 2000-2002 | GMC | Yukon XL 1500 | GMC Yukon XL 1500 with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 2000-2002 | GMC | Yukon XL 2500 | GMC Yukon XL 2500 V8 6.0L with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| 1999-2002 | Pontiac | Firebird | Pontiac Firebird V8 5.7L with Oil Gauge Oil Pressure Switch TRQ SWA41749 |
| Brand Label | Part Number |
|---|---|
| Wells | PS391 |
| Wells | 1S6744 |
| Standard Motor Products | PS303 |
| Chevrolet | 12562267 |
| Standard Ignition | PS-303 |
| General Motors | D1818A |
This item may be interchangeable with parts from other brands with the above part numbers. This information is provided only for reference and does not guarantee that the item you are purchasing is identical to parts with part numbers from the brands listed above. To confirm that this item fits your vehicle, use the above "Check Vehicle Fit" option.
Lifetime Warranty
This item is backed by our limited lifetime warranty. In the event that this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. This warranty covers the cost of the part only.
Returns: Parts with electrical components cannot be returned once installed.
FREE Shipping is standard on Orders shipped to the lower 48 States (Contiguous United States). Standard shipping charges apply to Hawaii, Alaska and US Territories. Shipping is not available to Canada.
Expedited is available on checkout to the United States, excluding Alaska, Hawaii and US Territories as well as P.O. Boxes and APO/FPO/DPO addresses. Final shipping costs are available at checkout.
Works good and was an exact fit
I would recommend this part especially if you want to save money and get a quality part for less money than any other place . And it really only takes less than 10 minutes to remove the old one and install the new with the correct tools . 3/8 drive ratchet socket and 6 in extension and a 3/8 swivel adapter .. its really easy to do yourself if you have any coordination at all ... TRQ has the greatest video showing exactly what to do. my oil pressure was in the 40s at 60mph and now its over 60 what a huge difference Thanks TRQ for all your help
The pressure sensor I received was not calibrated right and was reading far too high. Bought a GM certified sensor which was much closer to the right pressure
Great price and fast shipping as always 1aauto comes through. Part fit perfectly and is working as it is expected too.
Great Product
Got the item quick and in tact, exactly what was needed for my car. There's even a video featured to help with installation. Love it thanks!
Great but a little hassle to get the job down. Over all works perfectly.
Eneed up seeing I had another 10 pounds of oil pressure after installing this new pressure switch. I checked my pressure with a gauge and this new switch was within a couple pounds. Very happy with it
received prompt help by phone to make sure I received an O.E.M part that fit and worked correctly at a great price
1A Auto is my goto source for parts and information. The delivery of parts is fast and accurate. No going to the parts store and finding out they don't have it in stock. The information video's are outstanding. They are clear and very helpful to review before ordering to find out if the task can be done or not without special tools. They are also helpful in describing the proper order for disassembly and reassembly. That saves me a lot of time. Great job on the videos.
SWA41749
This part is listed to fit your vehicle and will function and perform to the same standards as the OE.
oil pressure sending unit is for when you have a gauge it gives real time psi readings from idle thru acceleration. oil pressure switch is for when you only have a light, when oil psi drops below normal operating psi the switch is tripped activating the light to come on to warn of a problem.
