Product Description
Kit, Major Overhaul, U4.20 for Becker U4.20 - OEM-Equivalent
OEM-Equivalent Major Repair Kit for Becker U4.20
Vacuum Pump Supply OEM-equivalent repair kit built for reliable Becker vacuum pump service and maintenance.
Vacuum Pump Supply's OEM-equivalent kit, major overhaul, u4.20 is designed to help restore performance, reduce downtime, and provide a cost-effective alternative to OEM replacement parts.
Compatible Pump Models
- Becker U4.20
What This Kit Includes
- Replacement vanes
- Filters and separator elements
- Shaft seals and sealing components
- Gaskets and O-rings
When Should You Service or Rebuild This Pump?
- Reduced vacuum performance
- Slow pump-down times
- Oil leaks or worn seals
- Worn vanes or internal wear
- Bearing noise or vibration
- Scheduled overhaul interval reached
Complete Bill of Materials
| Part Number | Description | Qty |
|---|---|---|
| 74000101000 | Filter, Becker, U Series, Part# 74000101000 | 1 |
| 84040105000 | Filter Cartridge, Becker, U Series, U4.20, Part# 84040105000 | 1 |
| 94806200000 | Sealing ring, Fiber, Becker, U Series, Part# 94806200000 | 1 |
| 300093 | Sealing ring, Silicone, 23.0 x 8.0 x 3 mm, Becker, U Series, U4.20 Part# 300093 | 1 |
| 63070010700 | Washer, Valve, Becker, U Series, Part# 63070010700 | 1 |
| 300092 | Sealing ring, Viton, 22.8 x 8 x 2.8 mm, Becker, U Series, U4.20 Part# 300092 | 1 |
| 94802100000 | Sealing ring, Becker, U Series, Part# 94802100000 | 1 |
| 300091 | Sealing ring, Copper, 21.75 x 16.4 x 1.3 mm, Becker, U Series, U4.20 Part# 300091 | 1 |
| 300090 | Sealing ring, Copper, 13.16 x 10.4 x 0.8 mm, Becker, U Series, U4.20 Part# 300090 | 2 |
| 94803000000 | Sealing ring, Copper-Becker U Series, Part# 94803000000 | 2 |
| 94803000100 | Sealing ring, Aluminium-Becker U Series, Part# 94803000100 | 3 |
| 320025 | O-ring, 5 x 2.5mm - Buna, Part# 320025 | 2 |
| 320024 | O-ring, 75.92 x 1.78 mm - Viton, Part# 320024 | 2 |
| 300040300 | Gasket, Becker, U Series, Part# 300040300 | 1 |
| 310040300 | Gasket, Becker, U Series, U4.20 Part# 310040300 | 1 |
| 91311650100 | O-ring, 34.52 x 3.53mm (AS568-220) - Viton, Part# 91311650100 | 2 |
| 310097 | Dowty Seal, 18. 5 x 11. 8 x 1. 5 mm, Becker, U Series, Part# 310097 | 8 |
| 96541300000 | Exhaust Filter, Becker, U Series, U4.20, Part# 96541300000 | 1 |
| 90058300000 | Vane - GX - Becker, U Series, Part# 90058300000 | 3 |
| 86780099559 | Float Assembly, Becker, U Series, Part# 86780099559 | 1 |
| 320304 | O-ring, 28 x 2.5mm - Viton, Part# 320304 | 1 |
| PL23970416 | O-ring, 40 x 2 mm - Viton, Part# PL23970416 | 1 |
| 300086 | Sealing ring, Fiber, 39 x 33.5 x 1.9 mm, Becker, U Series, Part# 300086 | 2 |
| 94801310000 | Busch Sealing Ring, Aluminum Part# 94801310000 | 1 |
| 300094 | Sealing ring, Fiber, 46.7 x 40.0 x 1.9 mm, Becker, U Series, U4.20, Part# 300094 | 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 U4.20.
What is the part number?
The part number is 33805600000.
Is this a repair kit?
Yes. This product is supplied as a Becker repair or maintenance kit for the compatible pump models listed above.
