375

The Peterbilt 375 is a Class 8 vocational conventional truck that was produced primarily from the late 1980s into the 1990s. It was a slightly lighter-duty sibling to the 377 and 379, built with a focus on construction and heavy-duty vocational work. It shares its basic cab shell with other Peterbilt narrow-cab models of the era.

Common Uses

The Peterbilt 375 was typically spec’d for:

• Dump truck and aggregate hauling
• Construction site operations
• Oilfield and logging
• Mixer trucks
• Short-haul heavy freight

Its strong frame, reliable engine options, and conventional cab made it popular among contractors and fleet operators looking for a durable vocational truck.

Cab Type

• Cab Style: Conventional narrow-body cab
• Cab Width: Approximately 1.9 meters (75 inches)
• Often built as a day cab but also available with small sleeper options

It shares the narrow vocational cab shell used on trucks like the Peterbilt 357, 365, and 340 series.

Aftermarket Seat Compatibility

The Peterbilt 375 uses the standard vocational bolt pattern: 4.68" x 12"

This pattern is compatible with most aftermarket seat brands without an adaptor plate.

Installation Notes

• Most 375s do not require an adaptor for new seats.
• Verify height and clearance for older trucks—dash panels and HVAC may limit tall suspension seats.
• Older floor insulation or riser blocks may need to be removed when upgrading.