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Dayton 4YFU8 seal repair kit in clear plastic bag

Dayton

Dayton 4YFU8 Repair Kit for 1DLT1 1DLT2 1DLR7

SKU CH-AKNZ-TGW73

Seal repair kit with mechanical seal and couplings fits 1DLT1, 1DLT2 and 1DLR7 pumps

  • Compatible with 1DLT1, 1DLT2 and 1DLR7 models
  • Includes mechanical seal, motor coupling and pump coupling
  • Wetted parts use PTFE and silicon carbide for durability
  • Not rated for diesel exhaust fluid or food-grade applications
  • Brand-new Dayton repair kit ready for installation

Dayton 4YFU8 Repair Kit

The Dayton 4YFU8 repair kit is a seal kit designed for use with pump models 1DLT1, 1DLT2 and 1DLR7. It provides the replacement components needed to restore sealing performance on these specific units. Maintenance technicians and equipment operators servicing compatible Dayton pumps are the intended users. This kit is not suitable for pumps outside the listed model numbers or for applications requiring food-grade or diesel exhaust fluid compatible materials.

Wetted Material Constraints

The kit uses PTFE and silicon carbide as wetted materials, which determine its chemical compatibility and temperature limits. These materials are not rated for diesel exhaust fluid service and the kit carries no food-grade designation. Buyers must verify that the process fluid and operating conditions fall within the capabilities of PTFE and silicon carbide before installation. This kit cannot meet the needs of systems handling DEF or requiring sanitary-grade certification.

Included Mechanical Seal

The single specification that decides fitment is the inclusion of a mechanical seal matched to the 1DLT1, 1DLT2 and 1DLR7 pump series. The kit also supplies a motor coupling and a pump coupling for a complete rebuild. If the target pump requires a different seal design or coupling configuration, this kit will not provide the correct parts.

Highlights

  • Compatible with 1DLT1, 1DLT2 and 1DLR7 models
  • Includes mechanical seal, motor coupling and pump coupling
  • Wetted parts use PTFE and silicon carbide for durability
  • Not rated for diesel exhaust fluid or food-grade applications
  • Brand-new Dayton repair kit ready for installation

Specifications

BrandDAYTON

Questions about this item

Which repair kit version should I choose for my Dayton 1DLT1, 1DLT2 or 1DLR7 pump?

The 4YFU8 kit is the single version listed and fits all three pump models directly.

What does the mechanical seal do once the kit is installed in the pump?

The included mechanical seal restores the primary shaft seal using PTFE and silicon carbide wetted faces for fluid containment.

What pump interface does this kit connect to and what does that limit?

The kit couples to the motor and pump shafts of the 1DLT1, 1DLT2 and 1DLR7 models, limiting use to those specific Dayton pumps.

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