Brakes & Wheel Ends · 7 of the top 100
Scheduled wear: drums, shoes, seals and bearings get measured at every reline and replaced in axle sets. Nobody gambles on brakes — these orders are steady as a metronome.
3600AX Brake Drum Fits 16.5" x 7" Brakes – 10 Bolt Holes Balanced
PS-BR.01.UN.009 · ordered 73× · In Stock
T3030DD Bendix/Haldex Air Brake Chamber — Fits Semi Trucks & Trailers
PS-TRBW.01.UN.003 · ordered 11× · In Stock
T3030 Spring Air Brake Chamber Long Stroke — Fits Semi Trucks & Trailers (T-3030)
PS-TRBW.01.UN.001 · ordered 11× · In Stock
R801073 Automatic Slack Adjuster Fits Freightliner Cascadia Air Brake
PS-BR.01.UN.001 · ordered 10× · In Stock
R801075 Automatic Slack Adjuster 1-1/2" 28 Spline, 5-1/2" Arm Universal AS1172
PS-BR.01.UN.003 · ordered 9× · In Stock
T3030 Air Brake Chamber 30/30 Short Stroke T-3030 — Semi Trucks & Trailers
PS-TRBW.01.UN.002 · ordered 5× · In Stock
4497130180 ABS Sensor Cable Extension Universal : S4497130180 , WN4497130180
PS-BR.01.UN.010 · ordered 3× · In Stock
Electrical & Lighting · 10 of the top 100
Lighting is the #1 roadside inspection line item in the country. Burned lamps, hazed headlights and dead marker lights are cheap to fix and expensive to ignore, so they sell year-round.
2" Truck Trailer Clearance Side Marker Light, Red, 3 Diode, 12V Universal
PS-EL.01.UN.014 · ordered 32× · In Stock
Trailer Marker Lamp Light 12V Waterproof 3 Diode Submersible Universal
PS-EL.01.UN.015 · ordered 20× · In Stock
LED Trailer Tail Light, Stop Tail Turn Backup, 4 Inch Round Red/Clear, 12V
PS-EL.01.UN.009 · ordered 16× · In Stock
4" Trailer Stop Turn Tail Round Flange Mount, 12 LED, 12V, Universal
PS-EL.01.UN.008 · ordered 11× · In Stock
7-Way Trailer Socket Breaker SAE J560 12V 20A | Extended Barrel, Split Pin, Zinc Die-Cast, Full-Opening Lid | Serviceable Circuit Breakers | Replaces 15-762, 11-737, 055040
PS-EL.01.UN.001 · ordered 8× · In Stock
3/4" Small Round LED Side Marker Lights Red Truck Trailer Clerance Light 12V
PS-EL.01.UN.004 · ordered 7× · In Stock
LED Trailer Light with Grommet, Brake Turn Tail, 6-3/8 Inch Oval Red, 12V
PS-EL.01.UN.012 · ordered 5× · In Stock
High-Performance LED Projector Fog Light for International LT / LT625 (2018–2025) - 6000K Bright White, IP67 Waterproof, Plug & Play Replacement A06-51909-000
PS-EL.01.IN.001 · ordered 4× · In Stock
LED Oval Stop Turn Tail Light Kit 6-3/8" Red for Trucks Trailers F01821S125
PS-EL.01.UN.013 · ordered 4× · In Stock
A6601512002 Driver Side Headlight Fits Freightliner Cascadia 2018-2024
PS-EL.01.FR.L.001 · ordered 3× · In Stock
Suspension & Steering · 5 of the top 100
Shocks, torque rods and bushings — the parts the Pacific Northwest's freeze-thaw potholes eat first. Worn suspension also chews tires, which is why fleets replace early.
B23566 Shock Absorber Semi Truck , 89440 , S23566, S24023, S24088, 341625
PS-SU.01.UN.003 · ordered 32× · In Stock
10-14339-000 Front Shock Absorber 66458 83396 10-14317-000 For Freightliner
PS-SU.01.FR.001 · ordered 7× · In Stock
Equalizer Bolt Kit For Hutchens Suspension 1635301 3341612 TRK5544A R309475
PS-SU.01.UN.008 · ordered 7× · In Stock
S-23651 Shock Absorber Fits Semi Trucks , A85045 , 66627 , S23651, 665733 665760
PS-SU.01.UN.002 · ordered 7× · In Stock
10287-01 Equalizer Bolt Assembly Fits Hutchison Heavy Duty , 334639 , R303414
PS-SU.01.UN.007 · ordered 3× · In Stock
Fuel System · 5 of the top 100
Fuel-water separators and filters live or die by water in winter diesel. One gelled or contaminated fuel event teaches a driver to change these on schedule forever.
A0000905251 Fuel Water Separator Fits Detroit Diesel DD13 DD15
PS-FU.01.FRWS.007 · ordered 28× · In Stock
A4720921705 Fuel Filter Fits Detroit Diesel DD13 DD15 DD16
PS-FU.01.FRWS.005 · ordered 24× · In Stock
A4700903151 Diesel Fuel Filter Fits Detroit FK13850NN, A4720900651, A4720900551
PS-FU.01.FRWS.006 · ordered 11× · In Stock
600185-6 Fuel Cap 3", Vented, Locking, Aluminum, Fits Freightliner Kenworth
PS-FU.01.MKIN.001 · ordered 5× · In Stock
P550854 A0000903651 Fuel Filter Fits Detroit Diesel , FS19915, PF9804 , P551011
PS-FU.01.FRWS.002 · ordered 5× · In Stock
Air & Brake Lines · 4 of the top 100
Gladhands, coils and fittings: pennies each, truck-stopping when they fail. Every trailer swap works them, so they're consumables in all but name.
Emergency Gladhand Coupler Air Brake Red Color , 701099, 1791002, GH11451
PS-AB.01.UN.003 · ordered 22× · In Stock
Standard 1/2” Service Gladhand Coupler Blue Color , 1791001 , 1200614, R11452
PS-AB.01.UN.002 · ordered 17× · In Stock
3‑in‑1 Rubber Air Hose & Electrical Cable Wrap – 12 ft Bundle (ABS Power Cord) PE13050
PS-AB.01.UN.004 · ordered 10× · In Stock
AD27750 Spin-On Air Dryer Cartridge Filter Fits Volvo/Kenworth
PS-EN.01.UN.024 · ordered 3× · In Stock
Engine & Performance · 22 of the top 100
Filters, water pumps and the service items every PM interval consumes. These are the quiet volume kings — bought four and ten at a time by shops that maintain fleets on a calendar, not on a breakdown.
Primary Engine Air Filter for Freightliner Cascadia 2018+ and Coronado 2010-2016 | Detroit DD13 DD15 DD16, Cummins X15 ISX12N | Replaces 03-42776-010
PS-EN.01.FR.008 · ordered 18× · In Stock
12PK2140 V-Ribbed Belt 20481362, 21189554, K120842, 5120843 Fits Volvo
PS-EN.01.VL.003 · ordered 17× · In Stock
A4729933496 Serpentine Belt Fits Freightliner Cascadia DD15 , 8PK2691
PS-EN.01.FR.006 · ordered 15× · On Order
12PK1625 Belt Fits Volvo Fits Mack MP8 20582557, 23961868, S-21819, S21819
PS-EN.01.VL.002 · ordered 10× · In Stock
Forward Rear Input Axle Pinion Seal & Sleeve Kit A11205X2728 100494 CR32500
PS-EN.01.UN.021 · ordered 9× · In Stock
06-23464-000 Transmission Oil Temperature Sensor Fits Freightliner
PS-EN.01.FR.012 · ordered 8× · In Stock
Primary Engine Air Filter for Kenworth T680 T880 and Peterbilt 567 579 2022+ | Replaces D37-1061
PS-EN.01.KWPT.001 · ordered 8× · In Stock
Engine Air Filter Primary Fits Volvo Fits Mack 23883251
PS-EN.01.VL.010 · ordered 7× · In Stock
8PK1427 V-Ribbed Belt 0124587004 3081619 4080560 5080560, Fits Freightliner
PS-EN.01.VL.006 · ordered 5× · In Stock
AF26103 Engine Air Filter Fits International/Kenworth CUMMINS Replacement
PS-EN.01.UN.026 · ordered 5× · In Stock
4965690 Accessory Drive Support Gasket Fits Cummins ISX15/QSX15 Engines
PS-EN.01.FRKW.001 · ordered 5× · In Stock
Dayco 89440 Belt Tensioner Fits DD15 DD13 ISX Fits Freightliner
PS-CO.01.UN.007 · ordered 5× · In Stock
Thermostat Housing Gasket Fits Cummins ISX ISXe5 3682673
PS-EN.01.UN.010 · ordered 5× · In Stock
511016115, 10PK1543 Serpentine Belt Fits Cummins ISX , 3288689, 5080537, 408053
PS-CO.01.UN.009 · ordered 4× · In Stock
4 Pack A1-1205Y2729 Output Seal FitsHeavy-Duty Trucks VOLVO Direct Replacement
PS-EN.01.UN.022 · ordered 4× · In Stock
10PK1485 V-Ribbed Belt 20491756 23961779 4100585 5100585 K100582 Fits Volvo
PS-EN.01.VLIN.001 · ordered 3× · In Stock
3104230 EGR Valve Gasket Fits Cummins ISX ISX15 Diesel
PS-EN.01.UN.012 · ordered 3× · In Stock
01-27846-000 Belt Tensioner Fits Freightliner M2 FLD112 Aftermarket 0127846000
PS-CO.01.FR.011 · ordered 3× · In Stock
10PK1275 Serpentine V Belt 01-24894-004, 19163604 K100502 Fits Freightliner
PS-EN.01.FR.003 · ordered 3× · In Stock
Drive Axle Oil Seal Assembly A11205Z2730 CR30009 Fits Meritor Freightliner
PS-FU.01.UN.001 · ordered 3× · In Stock
4940003 Belt 8-Rib 81" Heavy Duty, GT4080811DF, 3933357, 202952, 5080810, 8K81 8PK2058
PS-CO.01.UN.010 · ordered 3× · In Stock
4026507 Valve Cover Gasket Seal Fits Cummins ISX ISX15 , High Quality
PS-EN.01.UN.001 · ordered 2× · In Stock
Body & Exterior · 27 of the top 100
No surprise this is the biggest group: body parts don't wear out on a schedule — they get hit. Deer strikes, dock bumps, yard clips. When it happens the truck is visibly damaged, DOT notices, and the fix can't wait, so bumpers, mirrors, fairings and grilles move constantly.
82750058 RH Corner Bumper Trim with Fog Light Hole Fits Volvo VNL 2018-2024
PS-BD.01.VL.R.003 · ordered 16× · In Stock
82750054 LH Corner Bumper Trim with Fog Light Hole Fits Volvo VNL 2018-2024
PS-BD.01.VL.L.005 · ordered 16× · In Stock
Deer Guard Bracket for Freightliner Cascadia 2018-2024 , 64-99005-B, 8-F10-B
PS-BD.01.FR.013 · ordered 12× · In Stock
82750277 Left Driver Side Corner Bumper Air Deflector Fits Volvo Direct Replacement
PS-BD.01.VL.026 · ordered 10× · In Stock
82750293 Left Corner Bumper Air Deflector Fits Volvo VNL 82750295
PS-BD.01.VL.029 · ordered 10× · In Stock
82750279 Fits VNL RH Air Bumper Air Deflector VOLVO 2018-2025 Aftermarket
PS-BD.01.VL.R.017 · ordered 8× · In Stock
84200944 RH Right Rear Air Fairing Fits 2018-2023 Fits Volvo VNL , 84200943
PS-BD.01.VL.R.012 · ordered 8× · In Stock
24" × 24" Plastic Quarter Fender Kit for Universal Semi Trucks and Trailers
PS-BD.01.UN.005 · ordered 8× · In Stock
82750070 RH Corner Bumper with Fog Light Hole, Fits Volvo VNL 2018–2024
PS-BD.01.VL.R.009 · ordered 7× · In Stock
82750590 RH Passenger Side Corner Bumper Cover, Fits Volvo VNL 2018-2024
PS-BD.01.VL.R.014 · ordered 7× · In Stock
LH Mirror Arm Cover Driver Side Fits Freightliner 22-78606-517
PS-BD.01.FR.L.002 · ordered 7× · In Stock
82758382 Right Passenger Side Center Bumper Trim Fits Volvo VNL 2018-2024 Aftermarket 82758380
PS-BD.01.VL.R.004 · ordered 6× · In Stock
82768267 LH Front Fairing Extension Replacement Fits Volvo VNL 2018-2023
PS-BD.01.VL.L.016 · ordered 6× · In Stock
Right Side 20565618 ; 20565619 Hood Lock Assembly Fits Volvo VN VNL VHD RH
PS-BD.01.VL.R.007 · ordered 5× · In Stock
20565618 Left Hood Latch Assembly 20565619 Fits Volvo VN VNL VHD LH
PS-BD.01.VL.L.007 · ordered 5× · In Stock
82758380 LH Center Bumper Trim Molding Fits Volvo VNL 2018-2024 , 82758382
PS-BD.01.VL.L.008 · ordered 5× · In Stock
82768268 Right Front Fairing Extension Fits Volvo Direct Replacement Aftermarket
PS-BD.01.VL.R.015 · ordered 5× · In Stock
82361058 Left Hood Mirror Fits Volvo VNL 2019-2024 Heated Aftermarket 84723681
PS-BD.01.VL.L.001 · ordered 5× · In Stock
82745720 Bug Screen Mesh Fits Volvo VNL 2018-2024
PS-BD.01.VL.035 · ordered 4× · In Stock
Right Passenger Side Heated Chrome Hood Mirror Assembly Fits Freightliner Cascadia A22-75354-003
PS-BD.01.FR.R.001 · ordered 4× · In Stock
84722024 RH Center Fairing Extension Direct Fits Volvo Replacement Aftermarket
PS-BD.01.VL.R.016 · ordered 4× · In Stock
Upper Hood Latch Spindle Kit VNL Aftermarket High Quality 20498998
PS-BD.01.VL.033 · ordered 4× · In Stock
A22-73907-005 Heated Power Mirror Assembly Fits Freightliner Cascadia 2018-2024
PS-BD.01.FR.R.003 · ordered 3× · In Stock
82750068 LH Corner Bumper with Fog Light Hole, Fits Volvo VNL 2018–2024
PS-BD.01.VL.L.010 · ordered 3× · In Stock
82750588 LH Driver Side Corner Bumper Cover, Fits Volvo VNL 2018-2024
PS-BD.01.VL.L.015 · ordered 3× · In Stock
84200943 Left Rear Fairing Extension Fits Volvo VNL 2018-2024
PS-BD.01.VL.L.014 · ordered 3× · In Stock
30" 430 Stainless Steel Mud Flap Hanger Pair 1-1/8" Bolt Spacing Semi
PS-BD.01.UN.006 · ordered 3× · In Stock
Cooling System · 6 of the top 100
Silicone hoses, coolant tanks and radiator hardware — the roadside failure everyone has had once. Cooling parts are bought proactively by anyone who's paid for one tow.
20550690 Charge Air Cooler Hose, 3.5" ID x 6.38" L, Fits Volvo D13 Mack MP8
PS-CO.01.VL.002 · ordered 12× · In Stock
A/C Condenser Fits Kenworth T680 Peterbilt 579 567 2013-2023 Z9206001
PS-CA.01.KWPT.001 · ordered 7× · In Stock
Upper Radiator Hose 2.5" , Fit Kenworth and Peterbilt HE9324, 561.75250 , F046006
PS-CO.01.KWPT.002 · ordered 6× · In Stock
22386057 A/C Condenser Fits Volvo VNL 2018-2023 Aftermarket
PS-CA.01.VL.003 · ordered 3× · In Stock
56115450 Silicone CAC Hose – 4.5" x 8" | 4-Ply , CAC40450X6 , 561.15450 Fits Volvo
PS-CO.01.UN.013 · ordered 3× · In Stock
56120251 Upper Radiator Hose – Molded Silicone | fit Kenworth High Quality
PS-CO.01.KW.001 · ordered 3× · In Stock
Interior & Cabin Components · 4 of the top 100
Drivers live in these trucks. Cabin filters, switches and interior hardware sell because comfort and visibility are daily-use items, not luxuries.
Cabin Air Filter Fits Volvo VNL 2024-2026 AF26405 , AF26472M
PS-EN.01.VL.008 · ordered 12× · In Stock
AF26427 Cabin Air Filter Fits Freightliner , 36000006 , PA5359 Aftermarket
PS-CA.01.FR.004 · ordered 7× · In Stock
20942844 Headlight Head Lamp Switch, 13-Pin, Fits Volvo VNL VNM 2004-2014
PS-CA.01.VL.004 · ordered 5× · In Stock
91559 Cabin Air Filter Fits Freightliner , Aftermarket , AF26235 , P609422
PS-CA.01.FR.001 · ordered 4× · In Stock
Tires, Wheels & Hubcaps · 1 of the top 100
Wheel-end hardware and accessories that ride along with tire service.
Exhaust & Emissions · 3 of the top 100
NOx sensors and aftertreatment parts — the derate-clearing purchases. When the dash lights up and the truck limits to a crawl, this order ships the same day.
35007 DPF Fits Freightliner Cascadia DD13 DD15 Diesel Filter , A0004903792
PS-EX.01.FRWS.003 · ordered 10× · In Stock
23789373 23" Exhaust Bellows Flex Pipe Heavy-Duty Universal Fits Volvo
PS-EX.01.UN.005 · ordered 7× · In Stock
A04-30008-000 5" Exhaust Bellows Flex Pipe 30008 Fits universal A0430008000
PS-EX.01.UN.007 · ordered 5× · In Stock
Trailers: Suspension & Undercarriage · 1 of the top 100
Trailer running gear — the parts that carry the load and get serviced in the same bay as the tractor.
Trailers: Body & Frame · 1 of the top 100
Trailer body hardware — panels, doors and frame parts that take the same dock abuse the tractor's body does.
Why trust this list?
Every rank above comes from our own order ledger — units actually bought and shipped, not affiliate clicks. We sell Premium Quality aftermarket Direct Replacements with the OEM cross-reference numbers published right on the listing, so you can verify fitment against the part you’re holding. Still unsure? Run your VIN or call the counter — a person who knows trucks verifies fitment before you pay.
Need the part, not just the reading?
Every part below is a Premium Quality aftermarket Direct Replacement with published OEM cross-reference numbers, a 6+ month warranty and same-business-day shipping from Tacoma, WA. Not sure it fits? Run your VIN — or call and a person who knows trucks will verify fitment before you pay.