The Graco 257558 Kit, Throat, L060SM/L100SM is a genuine replacement throat seal kit designed for maintaining and rebuilding the throat section of compatible Graco MaxLife stainless steel displacement pumps. Replacing worn throat components helps prevent fluid leakage, maintain operating pressure, and extend pump service life.
Compatible Machines
- Graco Check-Mate Pump with L060SM displacement pump
- Graco Check-Mate Pump with L100SM displacement pump
- Bulk fluid transfer systems equipped with L060SM pumps
- Bulk fluid transfer systems equipped with L100SM pumps
- Industrial coating supply packages using L060SM displacement pumps
- Industrial coating supply packages using L100SM displacement pumps
- Sealant and adhesive pumping systems fitted with L060SM pumps
- Sealant and adhesive pumping systems fitted with L100SM pumps
Product Features
| Part Number | 257558 |
| Description | Throat Repair Kit |
| Compatible Pumps | L060SM and L100SM MaxLife Stainless Steel Pumps |
| OEM Manufacturer | Graco |
| Application | Throat section maintenance and seal replacement |
What's Included in the Kit
This kit contains the essential throat sealing and wear components required during maintenance of compatible displacement pumps.
- O-rings
- U-cup packing components
- Wetcup cover seal
- Wetcup cover wiper
- U-cup spacers
- Bearing spacer
- Retaining ring
Benefits of Replacing the Throat Kit
- Helps reduce fluid leakage around the pump throat area
- Maintains consistent pumping performance
- Restores proper sealing and pressure retention
- Supports longer pump service life
- Reduces unplanned maintenance downtime
Applications
The Graco 257558 throat kit is commonly used in fluid handling systems where L060SM and L100SM displacement pumps are installed. These pumps are frequently found in industrial coating, sealant, adhesive, and bulk material transfer applications that require reliable pump sealing performance.
Frequently Asked Questions
The kit is used to replace worn throat sealing components in compatible displacement pumps, helping maintain proper sealing and pump efficiency.
This throat kit is designed for Graco L060SM and L100SM MaxLife stainless steel displacement pumps.
Yes, Graco 257558 is an OEM replacement throat kit manufactured by Graco for approved pump maintenance and repair.
Replacement is recommended when signs of leakage, reduced sealing performance, excessive wear, or routine pump maintenance requirements are observed.
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