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PACCAR K37-1021 Extended Fuel Filter Elements – 6 Pack, 10 Micron Diesel Fuel Filtration
  • PACCAR K37-1021 Extended Fuel Filter Elements – 6 Pack, 10 Micron Diesel Fuel Filtration
  • PACCAR K37-1021 Extended Fuel Filter Elements – 6 Pack, 10 Micron Diesel Fuel Filtration
PACCAR K37-1021 Extended Fuel Filter Elements – 6 Pack, 10 Micron Diesel Fuel Filtration

PACCAR K37-1021 Extended Fuel Filter Elements – 6 Pack, 10 Micron Diesel Fuel Filtration

$179.99 USD $137.99 USD

Get dependable fuel filtration for compatible heavy-duty truck applications with the PACCAR K37-1021 Fuel Filter 6-Pack. These extended fuel filter elements are designed for compatible PACCAR fuel filter housings and feature a 10-micron filtration rating to help capture fine diesel fuel contaminants and separate water.

Ideal for routine fleet servicing and diesel engine maintenance, this six-piece set provides replacement filter elements for compatible Kenworth and Peterbilt truck configurations.

Product Highlights

  • OEM Reference Number: K37-1021

  • Quantity: 6 Filter Elements

  • Product Type: Extended Diesel Fuel Filter Element

  • Filtration Rating: 10 Micron

  • Application: PACCAR extended fuel filter housing

  • Helps separate water and filter fine fuel contaminants

  • Supports fuel system cleanliness and component protection

  • Suitable for heavy-duty diesel maintenance

Part Number Cross References

The following numbers are commonly associated with PACCAR K37-1021:

  • PACCAR K37-1021 / K371021

  • Fleetguard FS20207

  • Luber-Finer L5113F

  • Baldwin PF46236

  • WIX WF10566

  • Donaldson P583177

Please compare the reference numbers and filter specifications with your original equipment before ordering. Cross-reference listings do not guarantee compatibility with every vehicle.

Compatible Applications

For select heavy-duty truck configurations, including:

  • Kenworth T680 with Cummins ISX15 engine

  • Other compatible Kenworth and Peterbilt applications using the K37-1021 extended fuel filter element

Fitment varies by model year, engine, and fuel filter housing. Verify your original filter number or VIN to ensure the correct replacement.

What's Included

  • 6 × K37-1021 Compatible Extended Fuel Filter Elements

Fitment Advisory: PACCAR K37-1021 is intended for compatible extended fuel filter housing applications. Do not order based on truck make alone. Confirm the existing filter part number and housing type before purchase.

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