BPW Type 30K Air Spring With Plastic Piston
BPW Type 30K Air Spring With Plastic Piston
$200.00
BPW Type 30K air spring with plastic piston and mounting kit for compatible trailer air suspension repairs. Match against the existing air spring, piston style, thread sizes and replacement references before ordering.
Part number SP55940-KP10.
Description
Overview
BPW Type 30K air spring supports trailer air suspension ride height and load control where a plastic piston assembly suits the setup. This air spring assembly suits BPW Type 30K applications and includes a mounting kit for fitting. Use it when replacing a worn, leaking or damaged suspension air spring on compatible trailer axle equipment.
Features
- Suits BPW Type 30K air suspension applications
- Plastic piston assembly for compatible trailer suspension setups
- Includes mounting kit for installation
- Matches common BPW, ContiTech, Firestone, Goodyear, Phoenix and Meritor replacement references
Specifications and Materials
BPW Type 30K air spring has a plastic piston configuration with mounting kit included. Match the air spring body diameter, maximum diameter, overall length and thread sizes before ordering. Part number: SP55940-KP10.
The equivalent technical profile lists 260mm body diameter, 315mm maximum diameter, 340mm length, M12 x 1.75 and M22 x 1.5 thread sizing.
manufacturer technical product page
Compatibility and Fitment
Confirm the trailer suspension, air spring type, piston style, thread sizes and existing part number before ordering. These cross-references show where this part replaces the part numbers and applications listed. Some installations may need minor changes. RML7051CP, 0542943210, 0542941290, 0542942191, 0542942400, 0542941231, 0542941141, 0542941531, 0542943370, 0542943350, 0542943650, 940MBP30, W01M588585, 1R11752, 1R11-752, 1DK21K2, MLF7177
Related Parts
Check the related service parts below against the trailer setup before ordering.
| Use | Part number | Part type |
|---|---|---|
| Used with | 102.598 | Air suspension screw |
Compliance and Safety
Inspect the mating hardware, top plate, air line connection and suspension mounting points when replacing an air spring. If the old bag has failed from rubbing, misalignment or over-extension, fix the cause before fitting the replacement.
Trailer Applications
Workshops fit this BPW Type 30K air spring on compatible trailer air suspension systems where the existing air spring uses the same piston configuration and replacement references. Fleets should compare the old part number and physical layout before ordering multiples.
Cross-reference and Suitability
This part cross-references to or suits the following equivalent part numbers and compatible alternatives:
| RML7051CP | 0542943210 | 0542941290 |
| 0542942191 | 0542942400 | 0542941231 |
| 0542941141 | 0542941531 | 0542943370 |
| 0542943350 | 0542943650 | 940MBP30 |
| W01M588585 | 1R11752 | 1R11-752 |
| 1DK21K2 | MLF7177 |
Why Choose ICS Trailers
ICS Trailers supplies heavy trailer suspension parts for workshops, fleets and repairers that need clear matching information before a job is pulled apart. Find more trailer suspension components in our Suspension category
Online prices apply to website orders only. In-store pricing may differ.







