!! Please verify that this part fits your vehicle by VIN before purchase !!
Unused Old Stock (NOS) Motorcraft axle shaft / wheel seal — part number BRS-42 (also labeled F75Z-1S177-BA). Original Motorcraft packaging included; seal is clean, unworn, and shows no installation marks.
Fitment (verified): Used on multiple Ford rear-axle platforms that specify BRS-42 / F75Z-1S177-BA, including a wide range of Ford F-150 (late 1990s–early 2000s), Ford Expedition, Lincoln Navigator, and other Ford trucks/SUVs equipped with the matching rear axle assembly. Always confirm with your VIN and axle code to ensure proper fitment.
About this part: Genuine OEM Motorcraft axle shaft seal designed for factory Ford rear axles. Provides proper sealing, oil retention, and bearing protection for long-term drivetrain reliability. Ideal for maintenance or restoration where OEM parts are preferred.
Condition notes: True NOS from long-term storage. Seal lip, outer ring, and inner cage show zero wear. Rubber and metal surfaces are clean and pliable. Box shows shelf wear, creasing, and aging consistent with vintage Motorcraft packaging.
Market value (verified): Typical sales for BRS-42 / F75Z-1S177-BA seals fall within the **$12–$22 USD** range depending on condition and brand. OEM Motorcraft NOS examples generally capture the higher side due to build quality and authenticity.
Keywords: Motorcraft BRS-42, F75Z-1S177-BA, Ford axle shaft seal, Ford F-150 rear axle seal, Expedition Navigator wheel seal NOS, OEM Motorcraft driveline seal.