Frequently Asked Questions About Peterbilt 359 Mirrors & Accessories
Will these mirrors fit my specific year Peterbilt 359, and what about 379 models?
Most aftermarket mirrors for the Peterbilt 359 are designed to fit all model years from 1967-1987. However, there can be slight variations in door mounting patterns between early (1967-1979) and late (1980-1987) models. Many mirrors are also compatible with Peterbilt 379 models (1987-2007), but the mounting brackets may differ. Always check the product description for specific year compatibility, and when in doubt, provide your truck's OEM or year when ordering to ensure proper fitment.
What's the difference between stainless steel and chrome mirrors, and which holds up better?
Stainless steel mirrors are made from solid stainless material and maintain their finish permanently without any coating that can peel or rust. Chrome mirrors feature a chrome plating over steel or plastic, which looks brilliant when new but can eventually pit, peel, or rust, especially in harsh weather conditions. While chrome mirrors typically cost less upfront, stainless steel mirrors are more durable and require less maintenance over time. For trucks exposed to road salt or coastal conditions, stainless steel is the better long-term investment.
Do I need special tools or professional installation for replacing mirrors?
Most mirror replacements can be completed with basic hand tools including socket wrenches, screwdrivers, and possibly a drill for new installations. Typical installation takes 30-60 minutes per side. The main challenges include accessing mounting bolts inside the door (may require door panel removal), ensuring proper alignment for visibility, and routing any heated mirror wiring. While not overly complex, having a second person helps with holding the mirror in position during mounting. Professional installation typically runs $50-100 per mirror if you prefer not to do it yourself.
What mirror styles are available, and do they affect visibility?
Common styles include West Coast (larger rectangular mirrors mounted on the door), hood-mounted mirrors, and combination setups. West Coast style mirrors offer the widest field of view and are most popular for long-haul applications. Smaller "peep" mirrors can be added for blind spot coverage. Convex mirrors provide wider viewing angles but distort distance perception. The key is matching your mirror setup to your typical driving conditions - city drivers often prefer smaller mirrors for maneuverability, while highway drivers benefit from larger West Coast styles for maximum visibility.
Are heated mirrors worth the extra cost, and can they be added to my existing setup?
Heated mirrors are particularly valuable in cold climates where ice and fog are common, eliminating the need for manual scraping and improving safety during pre-trip inspections. They typically add $75-150 per mirror to the cost. Adding heating elements to existing mirrors is possible but often impractical - it's usually more cost-effective to replace with factory-heated units. Installation requires running power from your fuse box (usually a 10-15 amp circuit) and adding a dash switch. Most heated mirrors draw 2-3 amps per side and warm up within 5-10 minutes.
