#1 Quality Semi-Truck Parts in The Heart of The Rio Grande Valley
Are you tired of downtime and costly repairs for your semi-truck? Look no further! Our extensive selection of semi-truck parts are engineered to deliver reliable performance mile after mile. From engines to transmissions and everything in between, USA 1 Diesel is here to help.
USA 1 DIESEL has well over 1000 items on inventory to cover all your needs
Check out some of our most popular items!
Oils and Filters

DELO 400
Learn more
An API CK-4 heavy duty engine oil specifically formulated for 2017 greenhouse gas (GHG 17) compliant diesel engines designed for lower emissions and improved fuel economy. Fully compatible with previous engines and oil categories.

Mystic JT-8
Learn more
This value-added synthetic blend engine oil has a carefully balanced additive system and premium base stock that gives outstanding deposit control. Recommended for commercial on-highway fleets, construction equipment, buses and automobiles.

Service Pro
Learn more
These premium gear oils are compounded with highly refined base stocks and additives to ensure extreme pressure characteristics, anti-wear, corrosion inhibition, rust prevention, low pour point, and anti-foaming performance. They are fully formulated for limited slip differentials.

Luberfiner
Learn more
Luber-finer® provides premium filtration solutions for fleets operating vehicles on-highway as well as for off-road applications such as heavy construction, mining, agriculture, the oil and gas industry, and marine.

Baldwin
Learn more
Baldwin Filters offers an extensive selection of lube, air, fuel, hydraulic, coolant and transmission filters for the trucking, construction, mining, agricultural, marine and mobile power generation industries.

FRAM HD
Learn more
FRAM offers a diverse range of heavy-duty oil filters, diesel fuel filters, cabin air filters, hydraulic filters, and coolant filters, are designed to optimize performance, extend vehicle lifespan, and reduce fleet maintenance costs.
Airsprings and Shocks

Automann

Tuffline

HD Value

Goodyear
A/C System and Compressors

UAC/Sanden SD7HD15
Learn more
- Model SD7H15
- Kenworth 77-10
- Peterbilt 80-10
- BM 00119C Universal Air
- Blower Motor – Conditioner HVAC
- International- Blower Motor

OMEGA 20-04816-AM
Learn more
- Omega Part No.: 20-04816-AM
- Aftermarket Part No.: 4544, 4816
- MEI Part No.: 5348QS
- Truck-Air Part No.: 03-0802
- Red Dot Part No.: 75R81292, 75R-81292, 75R-81292Q, RD-5-11250
- Alliance Part No.: ABP N83 304314
- Bergstrom Part No.: 526353
- Coolstar/Caterpillar Part No.: 330-2364, 330-2384
- International Part No.: 48166000, 3547917-C1, 3547917-C91, 3628700-C1
- Kysor Part No.: 1410046
- Sanden Part No.: 4816
- Sterling Part No.: 4C4Z-19703A
- Compressor Type: Sanden
- Compressor Model: SD7H15
- Clutch Diameter: 119mm
- Grooves: 8
- Voltage: 12V
- Oil Type: PAG 100
- Oil Oz.: 10.1
- Compressor Mount: Direct
- Compressor Fitting: Pad

OMEGA 33-31953 Blower Resistor
Learn more
- 4 Speed 4 Terminals
- 12 Volt

PTAC7160 PrimaTech A/C
Learn more
Receiver Drier

MT1253 Blower Switch
Learn more
- Rotary Fan
- 3 Speed 4 Positions
- 5 Spin

MT1253 Blower Switch
Learn more
- Washer Assortment
- Sealing Washer Box Kit
Engine

Automann 577.3010 Ignition Starter Switch

Automann 577.3002 Toggle Switch On-Off

Automann 572.2014 Radiator Cap 10lb

Automann 572.2026 Radiator Cap 15lb

Automann 178.2540 5-pin Relay

Automann 577.62504 Speed Tach Sensor

MT-1915 Low Pressure Cut-Off Switch
Learn more
- Normally- Open
- Closed- 44 PSI
- Open- 21 PSI

MT1639 Low Pressure Cut Off Switch
Learn more
- Normally- Open
- Closed- 44 PSI
- Open- 21 PSI
Brakes

Automann 577.A5336 ABS Sensor

Ideal Brake Shoes S/M/L
Exterior Lighting

United Pacific 37090 – 23 LED/Red
Learn more
Reflector Light Bar

United Pacific 37089 – 23 LED/Amber
Learn more
Reflector Light Bar

United Pacific 39703-19 LED Oval Reflector
Learn more
S/T/T Light
Interior Accessories

United Pacific 88217 4 Spoke Steering Wheel
Learn more
4-Spoke Steering Wheel Available in different colors and finishes

United Pacific 88222 3 Spoke Steering Wheel
Learn more
3-Spoke Steering Wheel Available in different colors and finishes
Detailing
and MORE!
We offer financing to well qualified buyers