Browse Peterbilt 387 Suspension Crossmembers / K-Frames for sale on MyLittleSalesman.com. Compare prices, photos, and seller details across 31 listings. Peterbilt 387 Suspension Crossmember / K-Frame pricing ranges from $210 to $375 based on recent marketplace data. Filter by condition, price, or year to find the right Peterbilt 387 Suspension Crossmember / K-Frame.