1122 - Large Classic Car/Boat Trailer Adapter

  1122 Classic Car & Boat Trailer Adapter (1 5/8″) Simplify brake bleeding on vintage American cars (1930s–1960s) and boat trailers with the Motive 1122 Adapter. Machined from corrosion-resistant aluminum, this 1 5/8″ press-fit cap slides into recessed reservoirs to form a secure, leak-proof seal for one-person, pressure-bleeder operation. Its robust construction stands up to shop and marine environments, while the clean, clamp-free design lets you purge air and old fluid quickly—no extra hoses or helpers required. Whether you’re restoring a classic or maintaining a trailer, the 1122 delivers fast, reliable results every time. Key Features Exact Vintage Fit: 1 5/8″ OD press-fit design for pre-1965 American car and boat trailer reservoirs Corrosion-Resistant Aluminum: Durable construction resists brake fluid, saltwater, and contaminants Leak-Proof Seal: Precision machining prevents fluid bypass during bleeding One-Person Operation: Enables solo brake and clutch bleeding—no a