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Ultimate Guide to Aftermarket Truck Parts: What You Need to Know
A complete guide to buying aftermarket parts for Freightliner, Kenworth, Peterbilt, International, Mack, Volvo, Hino, and Isuzu trucks — covering what’s available, how aftermarket compares to OEM, and what to look for when you buy.
Why Aftermarket Truck Parts?
If you run a commercial truck, you already know that maintenance and repairs are a constant. Parts wear out, stuff breaks, and every hour your truck sits idle is money lost. The question isn’t whether you’ll need parts — it’s how much you’ll spend on them.
OEM parts from the dealer are the default choice, but they come with dealer pricing. Aftermarket parts — parts manufactured by third-party companies to meet OEM specifications — offer the same fitment and function at significantly lower cost. For fleet operators and owner-operators watching their bottom line, aftermarket is how you keep trucks running without overspending on maintenance.
Here’s what you need to know about aftermarket parts for every major truck brand.
Freightliner Parts
Freightliner is the best-selling truck brand in North America, and the parts demand reflects it. The Cascadia alone accounts for a huge share of the Class 8 market, with the M2 dominating the medium-duty segment.
Most Common Freightliner Parts Needed
Headlights and lighting — Freightliner Cascadia headlight assemblies are one of the most frequently replaced items. The Cascadia’s headlight housing is prone to moisture intrusion and lens yellowing after 4-5 years of service. Aftermarket assemblies run 50-70% less than OEM while providing the same beam pattern and DOT compliance.
Bumpers — The Cascadia and M2 front bumpers take a beating from loading docks, tight parking, and road debris. Chrome and painted aftermarket bumpers are available at a fraction of dealer cost.
Grilles — Chrome grille replacements for the Cascadia are a popular aftermarket item, especially after cosmetic damage.
Mirrors — Door mirror assemblies, mirror glass, and mirror arms for the Cascadia and M2.
Freightliner Models We Cover
- Freightliner Cascadia (2008–2025)
- Freightliner M2 106 / M2 112
- Freightliner Columbia
- Freightliner Century
Kenworth Parts
Kenworth trucks are known for quality and driver comfort, and they hold their resale value well. Keeping them looking good and running right matters for both pride and dollars.
Most Common Kenworth Parts Needed
Headlights — The Kenworth T680 and T880 headlight assemblies are high-demand aftermarket items. LED upgrades from halogen are popular, and full assembly replacements are common once moisture or lens degradation sets in.
Grilles and chrome trim — Kenworth’s distinctive chrome grilles are expensive through the dealer. Aftermarket options provide the same look and fitment.
Bumpers — Chrome and painted bumpers for the T680, T880, and W990.
Mirrors — Complete mirror assemblies and replacement glass.
Kenworth Models We Cover
- Kenworth T680
- Kenworth T880
- Kenworth W990
- Kenworth T370
Peterbilt Parts
Peterbilt is the flagship brand for owner-operators who take pride in their trucks. From the classic 389 to the aerodynamic 579, Peterbilt parts are in constant demand.
Most Common Peterbilt Parts Needed
Headlights — Peterbilt 579 headlight assemblies and 389 headlight assemblies are among the most searched aftermarket truck parts online. The 579’s integrated DRL design on newer models makes full assembly replacement the only option when the DRL module fails.
Bumpers — Chrome bumpers are a Peterbilt staple, especially on the 389. Aftermarket chrome bumpers at a fraction of OEM pricing keep trucks looking showroom-fresh.
Grilles and hood accessories — The Peterbilt grille is an identity piece. Aftermarket replacements match OEM styling.
Peterbilt Models We Cover
- Peterbilt 579
- Peterbilt 389
- Peterbilt 567
International Truck Parts
International (Navistar) trucks are common in vocational and fleet applications. The ProStar and LT series are widely used in over-the-road operations, and medium-duty models like the DuraStar and MV Series serve everything from towing to delivery.
Most Common International Parts Needed
Headlights — International ProStar and LT headlight assemblies. The ProStar’s headlight design is particularly prone to moisture issues.
Bumpers — ProStar and LT front bumpers.
Body panels — Hood panels, fender extensions, and quarter panels.
International Models We Cover
- International ProStar
- International LT
- International DuraStar / MV Series
- International 4300 / 4400
Mack Truck Parts
Mack trucks have a reputation for toughness, and they’re everywhere in construction, refuse, and heavy hauling. The Anthem brought Mack into the modern highway tractor market, while the Pinnacle and Granite continue to dominate vocational work.
Most Common Mack Parts Needed
Headlights — Mack Anthem and Pinnacle headlight assemblies. The Anthem shares some design DNA with the Volvo VNL platform, so some cross-compatibility exists.
Bumpers — Chrome and steel bumpers for the Anthem, Pinnacle, and Granite.
Grilles and hood components — The Mack bulldog grille is iconic. Aftermarket options keep the look without the dealer price.
Mack Models We Cover
- Mack Anthem
- Mack Pinnacle
- Mack Granite
- Mack CXU / CXN
Volvo Truck Parts
Volvo’s VNL series is one of the most popular highway tractors in North America, known for fuel efficiency and driver comfort. The VNR serves regional and distribution routes.
Most Common Volvo Parts Needed
Headlights — Volvo VNL headlight assemblies, especially the 2004-2017 models where lens degradation is a known issue. The 2018+ VNL has a completely redesigned front end with new headlight housings.
Grilles — Chrome and painted grille replacements.
Mirrors — Complete heated mirror assemblies and replacement glass.
Volvo Models We Cover
- Volvo VNL 300 / 400 / 670 / 760 / 860
- Volvo VNR
Hino Truck Parts
Hino trucks are the backbone of many medium-duty fleets across North America. Known for reliability and low operating costs, Hino models range from the Class 4 Model 155 up to the Class 7 Model 338.
Most Common Hino Parts Needed
Headlights — Hino 155, 195, 258LP, and 338 headlight assemblies. These are straightforward replacements with good aftermarket availability.
Bumpers — Front bumpers for the 155-338 range.
Body panels and steps — Side panels, corner panels, and step assemblies. The Hino cab design means body panels are specific to each model, but aftermarket options cover the full lineup.
Hino Models We Cover
- Hino 155 / 155DC
- Hino 195 / 195DC
- Hino 258LP / 268
- Hino 338
Isuzu NPR Parts
The Isuzu NPR (and its variants NRR, NQR, and FVR) is the best-selling low cab forward truck in North America. Used extensively for delivery, landscaping, box truck, and service body applications, the NPR has a massive installed base that needs parts.
Most Common Isuzu Parts Needed
Headlights — Isuzu NPR and NRR headlight assemblies. These are bolt-on replacements with plug-and-play connectors.
Bumpers — Front bumpers for the NPR, NRR, and NQR.
Body panels — Corner panels, door panels, side steps, and fender extensions. The cab-over design means body panels are relatively easy to replace compared to conventional trucks.
Grilles — Grille replacements for the NPR and NRR.
Isuzu Models We Cover
- Isuzu NPR / NPR-HD
- Isuzu NRR
- Isuzu NQR
- Isuzu FVR / FTR
Mitsubishi Fuso Parts
The Mitsubishi Fuso FE and Canter series serve similar applications to the Isuzu NPR — urban delivery, landscaping, and light commercial use. Parts availability has historically been more limited than other brands, which makes aftermarket options especially valuable.
Most Common Fuso Parts Needed
Headlights — FE and Canter headlight assemblies.
Bumpers and body panels — Front bumpers, corner panels, and step assemblies.
Fuso Models We Cover
- Mitsubishi Fuso FE125 / FE160 / FE180
- Mitsubishi Fuso Canter
How to Choose Quality Aftermarket Truck Parts
Not all aftermarket parts are equal. Here’s what separates good aftermarket from junk:
Look for OEM-Spec Manufacturing
The best aftermarket manufacturers reverse-engineer OEM parts and build to the same specifications — same materials, same tolerances, same mounting points. The result is a part that bolts in exactly like the original.
Check for DOT/SAE Compliance
For lighting products (headlights, taillights, marker lights), DOT and SAE compliance means the part meets federal standards for beam pattern, brightness, and visibility. Non-compliant lights can fail inspection and, more importantly, compromise safety.
Verify Fitment Before You Buy
“Universal fit” is a red flag for truck parts. Good aftermarket parts are application-specific — they’re built for a specific make, model, and year range. The listing should clearly state which trucks the part fits.
Consider the Warranty
Reputable aftermarket suppliers stand behind their products. Look for parts that come with at least a 1-year warranty against defects.
Ask About Return Policies
If a part doesn’t fit right, you need to be able to return it without hassle. Check the seller’s return policy before ordering, especially for large items like bumpers that are expensive to ship back.
Shop Aftermarket Truck Parts at EverTrust Parts
We stock headlights, bumpers, grilles, mirrors, body panels, and more for Freightliner, Kenworth, Peterbilt, International, Mack, Volvo, Hino, Isuzu, and Mitsubishi Fuso trucks.
Why truck owners and fleets choose EverTrust:
- OEM-quality fitment at aftermarket prices
- Fast shipping across North America (USA & Canada)
- Real truck parts expertise — we know these trucks
- Easy returns if something doesn’t work out
Have a question about a specific part? Contact us at sales@evertrustparts.com with your truck’s year, make, and model — we’ll help you find exactly what you need.
Brand-Specific Guides
- International Truck Parts Guide
- Freightliner Cascadia Parts Guide
- Isuzu NPR/NQR/NRR Parts Guide
- Volvo VNL/VNR/VHD Parts Guide
- Kenworth T680 & T880 Parts Guide
Shop All Parts
Browse All Products → | Headlights | Bumpers | Grilles | Mirrors
Shop Related Parts
Related Guides
- Cross-Reference Part Number Guide
- Complete Buying Guide
- Cascadia Fitment Guide
- T680/T880 Compatibility Guide
Related: Peterbilt 389 grille assembly | Peterbilt 389 headlight housing