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Peterbilt 378 aftermarket door accessories can help you customize the look of the interior and exterior of your doors. Find window cranks, switch trim, door lock knobs, and door pockets all at 4 State Truck. Shop for custom, chrome, and aftermarket accessories at prices that won't break your bank.

Peterbilt 357/378 Door Acc.

Upgrade the look and feel of your Peterbilt 352 with a premium selection of custom door accessories designed to enhance both style and function. Whether you're aiming to add a touch of chrome, boost comfort, or improve accessibility, this lineup delivers high-quality, Peterbilt-specific parts built for personalization and long-term durability. Choose from a wide variety of chrome and billet aluminum door handles, stainless grab handles, and decorative lock knobs in chrome, metal, or crystal finishes. Add a custom touch with window cranks featuring jewel accents and colorful adapters, or go bold with LED door light lenses in vibrant shades like amber, blue, green, and red. For added convenience and comfort, explore accessories like interior door pockets, armrests, and trim pieces, all made to fit your Peterbilt 's cab with precision. Whether you 're replacing worn components or building a fully customized interior, these door accessories offer the perfect blend of performance, personality, and show-worthy style for your 352.

Frequently Asked Questions About Peterbilt 357/378 Door Accessories

Will these door accessories fit my specific year Peterbilt 357 or 378?

Most door accessories for Peterbilt 357/378 models are designed to fit trucks manufactured from 1987 through 2007. However, there were minor changes throughout production years. For door handles and window switches, verify if your truck has manual or power windows. Door panels typically fit all years within this range, but 2005-2007 models may have slightly different mounting points. Always check the product description for specific year compatibility or contact us with your VIN for verification.

What's the difference between OEM and aftermarket door handles, and which should I choose?

OEM door handles are manufactured to original Peterbilt specifications using the same materials and processes, typically featuring zinc die-cast construction with chrome plating. Aftermarket options range from economy versions with plastic components to premium stainless steel upgrades. OEM handles generally last 10-15 years with proper maintenance, while quality aftermarket stainless options can exceed this. Economy aftermarket handles may only last 3-5 years. For daily drivers, we recommend OEM or premium aftermarket. For show trucks, polished stainless provides the best appearance and durability.

Can I install door panels and armrests myself, or do I need professional help?

Door panel installation is a moderate DIY project that takes about 2-3 hours per door. You'll need basic tools including panel removal tools, Phillips and flathead screwdrivers, and possibly a drill for new mounting holes. The main challenges are removing old panels without breaking clips, properly routing window and lock mechanisms, and ensuring proper alignment. Most customers successfully complete installation themselves following included instructions. Professional installation typically costs $150-300 per door if you prefer that route.

What material and finish options work best for different climates and uses?

For humid climates or trucks exposed to road salt, stainless steel or chrome-plated zinc handles resist corrosion best. Painted or powder-coated options may show wear within 2-3 years in harsh conditions. Interior accessories like door panels come in vinyl, leather, or cloth options. Vinyl withstands temperature extremes and moisture best, while leather requires climate control to prevent cracking. For work trucks, diamond plate or textured plastic kick panels protect against boot damage better than carpet or smooth finishes.

Are door seals and weatherstripping universal, or do I need specific parts for my cab configuration?

Door seals are NOT universal between Peterbilt 357 and 378 models, despite their similar appearance. The 357 typically uses a different seal profile than the 378, and extended cab models require longer seals than day cabs. Additionally, trucks with air-ride cabs need seals designed for the additional movement. Measure your existing seal's thickness and mounting style before ordering. Most seals come in standard lengths that you trim to fit. Expect to replace door seals every 5-7 years depending on climate and usage.


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