RK MAC Replacement Kit, Top SS Piston & GEN III Piston Seal Assy, Viton for CPS TR21/TRS21
Reference: RKMAC-3
Manufacturer: RK MAC
Once you have your TRS21 updated with either upgrade kits RKMAC-1 or RKMAC-2, purchase this kit to service the piston seals.
Overview
Once you have your TRS21 updated with either upgrade kits RKMAC-1 or RKMAC-2, purchase this kit to service the piston seals. This kit consists of the Top SS piston with GEN III Piston Seals and Wear Bands. GEN III seals last 700% longer than the OEM seals. This kit utilizes a Viton energizing O-ring for Butane or Propane recovery used in the Oil Extraction Process.
Includes Piston Tool RKMAC-TL1
Installation Manual
Fits
CPS TRS21 recovery pumps.
Delivery and pickup
- Ships across Canada and to the USA by Purolator, UPS or FedEx - live rates at checkout.
- Free pickup in Langley, BC.
- We deliver orders of $1000 or more in the Lower Mainland and Fraser Valley ourselves.
| Maker | RK MAC Service |
| Part number | RKMAC-3 |
| Fits | CPS TRS21 |
| Seals / O-rings | Viton (extraction) |
| Included | Top SS piston, GEN III piston seals, wear bands, Viton energizing O-ring, Piston Tool RKMAC-TL1 |





















