Product Description
U4.70 , U4.100 Seal & Gasket Kit for Becker U4.100, U4.70, U4.70D - OEM-Equivalent
OEM-Equivalent Seal/Gasket Kit for Becker U4.100, Becker U4.70, Becker U4.70D
Vacuum Pump Supply OEM-equivalent repair kit built for reliable Becker vacuum pump service and maintenance.
Vacuum Pump Supply's OEM-equivalent u4.70 , u4.100 seal & gasket kit is designed to help restore performance, reduce downtime, and provide a cost-effective alternative to OEM replacement parts.
Compatible Pump Models
- Becker U4.100
- Becker U4.70
- Becker U4.70D
What This Kit Includes
- Shaft seals and sealing components
- Gaskets and O-rings
When Should You Service or Rebuild This Pump?
- Oil leaks around covers or seals
- Flattened, hardened, or damaged gaskets
- Air leaks affecting vacuum performance
- Routine resealing service
Complete Bill of Materials
| Part Number | Description | Qty |
|---|---|---|
| 91311570100 | O-Ring,Viton,126.72 x 1.78mm | 2 |
| 63070010700 | Washer,Valve,Viton | 2 |
| 3070018700 | Valve Washer, Copper | 2 |
| 94802900000 | Sealing Ring, Fiber | 1 |
| 91311900000 | O-Ring,Buna,70 x 3.0mm | 1 |
| 700026200 | Oil Tank Cover Gasket | 1 |
| 300155 | Gasket, Buna | 1 |
| 90656000000 | Shaft Seal, Viton - 28 x 47 x 10 mm | 2 |
| 94803000100 | Sealing Ring, Aluminum | 5 |
| 91311670100 | O-Ring,Viton,26 x 2mm | 2 |
| 91311650100 | O-Ring,Viton,34.52 X 3.53mm (AS568-220) | 1 |
| 91311560100 | O-Ring,Viton,11 X 1.5mm | 2 |
| 300086 | Sealing Ring, Fiber, 39 x 33.5 x 1.9 mm | 1 |
| 300085 | Sealing Ring, Fiber, 31.8 x 27 x 1.9 mm | 2 |
| 420041 | Valve Washer, Viton | 1 |
| 94800200000 | Sealing Ring, Copper | 7 |
| 94803000000 | Sealing Ring, Copper | 5 |
| 94802300000 | Sealing Ring, Copper | 8 |
| 94802100000 | Sealing Ring, Viton | 2 |
| 94801300000 | Sealing Ring, Aluminum | 1 |
| 310026200 | Cover Gasket | 1 |
| 310126200 | Cover Gasket | 1 |
Complete Becker Service Solutions
Vacuum Pump Supply stocks Becker repair kits, replacement parts, filters, service items, and resources to help keep your vacuum pump running.
Why Buy from Vacuum Pump Supply?
- Vacuum pump specialists since 2006
- Over 15,000 vacuum pump parts and kits available
- OEM and OEM-equivalent options
- Fast shipping on stocked products
- Technical support from vacuum pump specialists
- Trusted by manufacturers, laboratories, universities, service companies, and maintenance teams
Helpful Resources
- Vacuum Pump Schematics, Manuals & Repair Resources
- Rotary Vane Vacuum Pump Repair Kits & Parts
- Vacuum Pump Oil Cross Reference Chart
- Vacuum Pump Oil
Frequently Asked Questions
Is this an OEM-equivalent product?
Yes. This is a Vacuum Pump Supply OEM-equivalent product designed as a cost-effective replacement for compatible Becker vacuum pump applications.
What pumps is this used on?
This product is assigned to the following compatible pump categories: Becker U4.100, Becker U4.70, Becker U4.70D.
What is the part number?
The part number is 54900026100.
Is this a repair kit?
Yes. This product is supplied as a Becker repair or maintenance kit for the compatible pump models listed above.