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Small cylindrical fuel filter with attached hoses and clamps

Baldwin Filters

Baldwin Filters BF840-K1 Fuel Filter Accessory

SKU CH-9CTQ-K4ZTD

In-line fuel filter kit with hoses and clamps, 5/16 inch inlet and outlet

  • In-line design simplifies fuel-system routing
  • 5/16-inch inlet and outlet match common fuel lines
  • Kit includes two hoses and four clamps for ready installation
  • Baldwin Filters brand backs consistent filtration quality
  • Compact 4-5/32 by 1-29/32-inch footprint fits tight engine bays

Baldwin BF840-K1 Fuel Filter Kit

This Baldwin Filters BF840-K1 is an in-line fuel filter kit designed for automotive and small-engine fuel systems. It arrives new and includes the filter element plus two hoses and four clamps for a complete installation. The unit suits mechanics and DIY owners who need a direct replacement for 5/16-inch fuel lines.

Installation and Common Issues

The kit ships with hoses and clamps so the filter can be fitted without sourcing extra parts. Installation is straightforward: cut the existing line, slide the supplied hoses over the 5/16-inch inlet and outlet, and secure them with the provided clamps. The main risk is an air leak if clamps are not tightened evenly or if hose ends are not cut square.

Capacity and Flow Limits

The filter body measures 4-5/32 inches in height and length with a 1-29/32-inch diameter, giving a compact footprint for tight engine bays. It handles standard petrol or diesel flow rates for carburetted and low-pressure injection systems. The element is not rated for high-volume racing pumps or large-displacement engines that exceed typical street-vehicle fuel demand.

Highlights

  • In-line design simplifies fuel-system routing
  • 5/16-inch inlet and outlet match common fuel lines
  • Kit includes two hoses and four clamps for ready installation
  • Baldwin Filters brand backs consistent filtration quality
  • Compact 4-5/32 by 1-29/32-inch footprint fits tight engine bays

Specifications

BrandBALDWIN FILTERS

Questions about this item

How can I confirm the BF840-K1 filter is flowing correctly after installing the included hoses and clamps?

Check for leaks at the 5/16 in inlet and outlet connections and verify steady fuel flow through the 4-5/32 in body during engine operation.

The box lists hoses and clamps — what else must I supply to complete the installation?

The kit includes two hoses and four clamps for the 5/16 in fittings; you only need basic hand tools to secure the connections.

Which BF840-K1 version suits a fuel line needing a 1-29/32 in diameter inline filter?

This single model provides a 1-29/32 in outside diameter and 5/16 in ports, matching that exact line size.

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