Product Description
Busch RA0255 / RA0305 Major Overhaul Kit 993525286 | OEM Equivalent
Compare to BMKF018
This complete major overhaul kit is designed for Busch RA0255 and RA0305 rotary vane vacuum pumps, including compatible Busch R5 D-Series models. It includes critical wear components required for a full pump rebuild, helping restore vacuum performance, improve sealing, reduce oil contamination, and extend pump service life.
Part Number: 993525286
Comparable To: BMKF018
Type: Major Overhaul Kit
Condition: New
OEM Equivalent: Yes
CLICK HERE FOR PUMP SCHEMATICS
Compatible Pumps
- Busch RA0255
- Busch RA0305
- Busch RA0255D
- Busch RA0305D
- Busch R5 D-Series Rotary Vane Vacuum Pumps
Major Overhaul Kit Contents
| Category | Part Number | Description | Qty |
|---|---|---|---|
| Filter | 0531000001 | Oil Filter | 1 |
| Filter | 0532140159 | Exhaust Filter | 4 |
| Gasket | 0481523005 | Cylinder Gasket | 1 |
| Seal | 0482509012 | O-Ring, Oil Filling | 1 |
| Seal | 0486000505 | O-Ring, Drain Oil | 1 |
| Plug | 0710000010 | Drain Plug | 1 |
| Bearing | 0473507139 | Needle Bearing RNA4906 | 2 |
| Shaft Component | 0472000008 | Shaft Sleeve 35×30×45.5 | 2 |
| Plug | 0710000002 | Oil Filling Plug G1" | 1 |
| Plug | 0710000010 | Oil Drain Plug 1/2" | 1 |
| Sight Glass | 0583000006 | Oil Sight Glass G1-1/4" | 1 |
| Vanes | 0722516729 | Carbon Vane 220×52×6mm | 3 |
| Valve | 0916516777 | Exhaust Valve | 3 |
| Coupling | 0512000005 | Coupling Sleeve M-48 | 1 |
| Hardware | 0437502718 | Taper Pin M8×40 | 4 |
| Valve | 0710523021 | Valve Plate | 1 |
| Valve | 0710523020 | Guide for Valve Plate | 1 |
| Valve | 0435523022 | Compression Spring | 1 |
| Screen | 0534000041 | Screen | 1 |
| Valve | 0947516622 | Float Valve | 1 |
| Seal | 0486000543 | O-Ring 186 × 3.5mm | 2 |
| Seal | 0486000587 | O-Ring 16.2 × 3mm | 4 |
| Seal | 0487000012 | Shaft Seal 35×47×7 | 4 |
| Gasket | 0481523008 | Gasket | 1 |
| Gasket | 0481523017 | Gasket | 1 |
| Gasket | 0481523005 | Gasket | 1 |
| Gasket | 0481516781 | Gasket | 1 |
| Seal | 0486521581 | O-Ring 42 × 2mm | 4 |
| Gasket | Included | Additional Gasket | 1 |
| Seal | 0486000531 | O-Ring 87 × 3mm | 2 |
| Seal | 0486000526 | O-Ring 65 × 3mm | 1 |
| Seal | 0482000021 | O-Ring, Oil Filling | 1 |
| Seal | 0486000505 | O-Ring, Drain Oil | 1 |
Features
- Complete major overhaul kit for Busch RA0255 and RA0305 vacuum pumps
- OEM-equivalent replacement for BMKF018
- Includes vanes, filters, bearings, shaft sleeves, seals, gaskets, plugs, sight glass, and valve components
- Designed for full pump rebuilds and major service intervals
- Helps restore vacuum performance, sealing, and pump reliability
- Supports reduced oil contamination and improved exhaust filtration
- Ideal for maintenance departments, rebuild shops, and production facilities
Recommended Vacuum Pump Oil
Fresh vacuum pump oil is critical after rebuilding your Busch R5 vacuum pump. We recommend replacing the oil and exhaust filters during installation of this overhaul kit to help protect the rebuilt pump and maintain proper vacuum performance.
Related Busch Vacuum Pump Parts & Resources
- Shop Busch Vacuum Pump Parts
- Shop Busch Repair Kits
- Shop Vacuum Pump Oil
- Vacuum Pump Repair Resources
Why Rebuild Your Busch RA0255 / RA0305 Pump?
Over time, vanes, seals, bearings, gaskets, valves, plugs, and filters wear from normal operation. A worn pump may show reduced vacuum levels, excessive oil mist, oil leaks, higher operating temperatures, increased noise, or longer pump-down times. Rebuilding the pump with a complete overhaul kit can help restore performance and reduce downtime compared to replacing the entire vacuum pump.
This Busch RA0255 / RA0305 major overhaul kit is a practical solution for facilities that rely on Busch R5 rotary vane vacuum pumps in manufacturing, packaging, printing, woodworking, plastics, laboratory, and industrial vacuum applications.
Common Search Terms
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