Tecumseh NOS OEM Carburetor Kit 631639

This is a genuine Tecumseh New Old Stock (NOS) OEM carburetor repair kit, part number 631639. This original factory kit is designed to restore proper carburetor operation by replacing worn gaskets, seals, and internal components.

Craftsman used Tecumseh engines across a wide range of mowers, snowblowers, and outdoor power equipment. When carburetors begin to leak, run lean, or have hard-starting issues, installing a true OEM Tecumseh kit ensures correct fuel metering, reliable starting, and smooth engine performance—something aftermarket kits often fail to provide.

Ideal for repairs, maintenance, and restorations, this NOS kit is no longer produced and is increasingly hard to find.

Features:

• Genuine Tecumseh OEM carburetor kit

• New Old Stock (NOS)

• Factory-correct gaskets, seals, and components

• Restores proper fuel delivery and performance

• Ideal for Craftsman equipment using Tecumseh engines

✅ Fits Applications

• Craftsman equipment equipped with Tecumseh engines

• Used on select Tecumseh carburetors (model-specific)

⚠️ Craftsman used multiple Tecumseh carburetors — verify carburetor model or OEM part number before ordering.

✅ Replaces / Part Number

• 631639

✅ Specifications

• Brand: Tecumseh

• Condition: New Old Stock (NOS)

• Part Type: Carburetor Repair Kit

• OEM Part Number: 631639

• Equipment Type: Lawn & Garden / Outdoor Power Equipment

• System: Fuel / Carburetor