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Auto Pro USA

1971-1974 GM Fan Clutch, SB Schwitzer 454 3991430

1971-1974 GM Fan Clutch, SB Schwitzer 454 3991430


  • Auto Pro USA Reproduction Fan Clutch designed for 1971-1974 GM vehicles equipped with Small Block Schwitzer engines featuring the 454 cubic inch displacement.

  • Direct replacement for GM OEM part number 3991430, ensuring precise fitment and compatibility for hassle-free installation.

  • Engineered to meet or exceed original equipment manufacturer standards for reliable performance.

  • Flat Rectangular Bi-Metallic Thermostatic Element

  • New Design Seals for Greater Leak Resistance

  • Modern Ball Bearing to Limit Wobble and Smooth Operation

  • Auto Pro USA's commitment to quality ensures a dependable and long-lasting replacement part.

Regular price $179.99 USD
Regular price $199.99 USD Sale price $179.99 USD
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