FAG SS2603 Manual Transmission Seal - Rear

Manual Transmission Seal for Chrysler and Dodge

FAG SS2603 is a manual transmission seal built for specific Chrysler and Dodge rear applications, including classic Imperial, New Yorker, Newport, Challenger, Charger, Dart, Monaco, 300, and Town & Country models. With nitrile sealing material and a metal spring design with an auxiliary lip, it is specified to help keep transmission fluid where it belongs while resisting contamination at the seal interface.

Key Features

• Part number: SS2603
• Manual transmission seal for rear applications listed in the fitment data
• Nitrile sealing material for dependable sealing performance
• Metal spring and auxiliary lip design
• Bore diameter: 2.25 in. / 57.15 mm
• Seal outside diameter: 2.254 in. / 57.252 mm
• Seal width: 1.563 in. / 38.608 mm
• Cross-references Dayco 15535 and National 8935S for the same application

Product Details

FAG SS2603 is engineered to the dimensional and material requirements needed for manual transmission sealing in older Chrysler and Dodge drivetrains. The nitrile sealing element, metal spring, and auxiliary lip work together to maintain contact at the sealing surface and help protect internal transmission components from dirt, dust, and moisture intrusion. This seal is listed for rear positions on 1963-1972 Chrysler Imperial, New Yorker, Newport, 300, and Town & Country, as well as 1963-1972 Dodge Dart and Monaco, 1968-1972 Dodge Charger, and 1970-1972 Dodge Challenger. It also appears in additional Chrysler and Dodge applications including 1962 Chrysler Imperial, 1966 Dodge Charger, 1967 Dodge Charger, and 1981-1983 Chrysler Imperial.

What It Helps Address

• Transmission fluid leakage at the seal area
• Contamination from dirt, dust, and moisture
• Seal wear from age-related hardening or loss of flexibility
• Loss of grease or lubricant retention at the bearing or seal interface
• Noise or drivability concerns related to a compromised transmission seal

Installation Notes and Tips

Verify bore diameter, outside diameter, and seal width before installation to confirm the seal matches the transmission housing and shaft dimensions. Clean the sealing surface thoroughly and inspect for scoring, corrosion, or wear that could affect sealing performance. For best results, compare the vehicle’s original seal style and position with the listed fitment for your Chrysler or Dodge application, including rear manual transmission seal use on models such as the Dodge Charger, Dodge Challenger, and Chrysler Imperial.

Quality Assurance

FAG designs seals using high-quality materials and application-specific specifications to meet vehicle manufacturer requirements. SS2603 follows that approach with a nitrile sealing element and reinforced seal construction for consistent fit and function in the listed manual transmission applications.