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Airmax SilentAir Compressor Maintenance Kit - G25 (RP25 74R) 1/4 HP Complete Repair Kit

Airmax SilentAir Compressor Maintenance Kits

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Restore Peak Performance With Airmax SilentAir RP Compressor Maintenance Kits

Keep your Airmax Aeration System running at peak performance with Airmax SilentAir Compressor Maintenance Kits. These kits are designed to replace worn parts inside your SilentAir Dual Rocking Piston Compressors, restoring efficiency and airflow.

Regular maintenance every 12 to 18 months ensures reliable aeration and extends the life of your compressor.

Each kit includes everything you need for a full refresh, so you can maintain your pond or lake aeration system without downtime.

Not sure which kit you need? Refer to the Quick Guide for easy reference.

Airmax SilentAir Compressor Maintenance Kit - Person working on the Compressor
Airmax SilentAir Compressor Maintenance Kits - Panoramic view of a lake surrounded by trees on a sunny day

1/4 HP SilentAir Compressor Maintenance Kit Components & Required Tools

  • 1/4 HP G25 (RP25 74R) Maintenance Kit – For SilentAir compressors in AM30 or PS10 systems purchased prior to 2016.
  • 1/4 HP G25 (RP25 87R) Maintenance Kit – For SilentAir compressors in SW20HP and PS10 systems.

G25 RP25 74R Included Components

  • 1 Cylinder Sleeve
  • 1 Cylinder Gasket
  • 1 Piston Cup
  • 2 O-Ring Gaskets
  • 2 Leaf Valves
  • 4 Screws (The 2 with the Torx head will not be used)

G25 RP25 74R Required Tools (Not Included)

  • 5/32" and 1/8" Allen Wrenches
  • Flathead Screwdriver
  • Small Pick Tool

G25 RP25 87R Included Components

  • 1 Valve Plate with Pre-Installed Leaf Valves
  • 1 Cylinder Sleeve
  • 1 Piston Cup
  • 2 Head O-Rings
  • 1 Cylinder O-Ring
  • 2 Torx Head Screws

G25 RP25 87R Required Tools (Not Included)

  • T20 and T25 Torx Wrenches
  • 5/8" Wrench
  • Pipe Joint Compound or Teflon Tape
Airmax SilentAir Compressor Maintenance Kits - 1/4 HP Compressor Replacement Kits Shown

1/3 HP SilentAir Compressor Maintenance Kit Components & Required Tools

  • 1/3 HP G33 (RP33 71R) Maintenance Kit – For SilentAir compressors in pre-2011 AM60, AM70, AM80, and AM100 Aeration Systems.
  • 1/3 HP G33 (RP33 82R) Maintenance Kit – For SilentAir compressors in PondSeries PS20 & PS30 systems. Also compatible with LS10 LakeSeries and pre-2010 AM60–AM100 Aeration Systems.

G33 RP33 71R Included Components

  • 2 Cylinder Sleeves
  • 2 Cylinder Gaskets
  • 4 Leaf Valves
  • 2 O-Ring Gaskets
  • 2 Piston Cups
  • 8 Screws (the 4 with Torx heads will not be used)

G33 RP33 82R Included Components

  • 2 Cylinder Sleeves
  • 2 Cylinder Gaskets
  • 4 Leaf Valves
  • 2 O-Ring Gaskets
  • 2 Piston Cups
  • 8 Screws (the 4 with Torx heads will not be used)

G33 RP33 71R & RP33 82R Required Tools (Not Included)

  • T25 Torx Wrench
  • 1/8" and 5/32" Allen Wrenches
  • Flathead Screwdriver
  • Small Pick Tool
  • Heat Source
Airmax SilentAir Compressor Maintenance Kits - 1/3 HP Compressor Replacement Kits Shown

1/2 HP SilentAir Compressor Maintenance Kit Components & Required Tools

  • 1/2 HP G50 (RP50 72R) Maintenance Kit – For SilentAir compressors in PondSeries PS40 and LakeSeries LS20, LS30, LS40, and LS60 systems purchased before 2022.
  • 1/2 HP G50 (RP50 87R) Maintenance Kit – For SilentAir compressors in PondSeries PS20 (2022–present), Shallow Water HP Series SW40HP, PondSeries PS20 & PS30, and LakeSeries LS40 systems purchased 2016–2022.

G50 RP50 72R Included Components

  • 2 Valve Plates with Pre-Installed Leaf Valves
  • 2 Head O-Rings
  • 2 Cylinder Sleeves
  • 2 Piston Cups
  • 2 Cylinder O-Rings
  • 8 Screws (4 with Torx heads)
  • 4 Tube O-Rings
  • 1 Pinch Clamp (included in case of clamp failure)

G50 RP50 72R Required Tools (Not Included)

  • T20 and T25 Torx Wrenches
  • 1/8", 5/32", 1/4", 1/2", 5/8" Allen Wrenches
  • Pick Tool
  • Pipe Joint Compound or Teflon Tape

G50 RP50 87R Included Components

  • 1 Valve Plate with Pre-Installed Leaf Valves
  • 4 Head O-Rings
  • 2 Cylinder Sleeves
  • 2 Piston Cups
  • 2 Cylinder O-Rings
  • 4 Torx Head Screws

G50 RP50 87R Required Tools (Not Included)

  • T20 and T25 Torx Wrenches
  • 5/32" Allen Wrench
  • 1/4" Nut Driver
Airmax SilentAir Compressor Maintenance Kits - 1/2 HP Compressor Replacement Kits Shown

3/4 HP SilentAir Compressor Maintenance Kit Components & Required Tools

  • 3/4 HP G75 (RP75 72R) Maintenance Kit – For SilentAir compressors in PondSeries PS40, PS80, and LakeSeries LS60 systems. Compatible with G75 compressors sold 2022–present or RP75 72R compressors sold 2016–2022.
  • 3/4 HP T75 (RP75) Maintenance Kit – For SilentAir compressors in PondSeries PS40 systems with 3–4 plates and LakeSeries LS80 systems with 4–8 plates.

G75 RP75 72R Included Components

  • 2 Valve Plates with Pre-Installed Leaf Valves
  • 2 Head O-Rings
  • 2 Cylinder Sleeves
  • 2 Piston Cups
  • 2 Cylinder O-Rings
  • 8 Head Screws (4 with Torx heads)
  • 4 Tube O-Rings
  • 1 Pinch Clamp (included in case of clamp failure)

G75 RP75 72R Required Tools (Not Included)

  • T20 and T25 Torx Wrenches
  • 1/8", 5/32", 1/4", 1/2", and 5/8" Allen Wrenches
  • Pick Tool
  • Pipe Joint Compound or Teflon Tape

T75 RP75 Included Components

  • 2 Head O-Rings
  • 2 Cylinder Sleeves
  • 2 Piston Retainer Plate Screws (T27 Torx head)
  • 2 Piston Cup Retainer Plates
  • 2 Piston Cups
  • 2 Cylinder O-Rings
  • 4 Leaf Valves
  • 4 Leaf Valve Backers
  • 4 Leaf Valve Retainer Washers
  • 4 Leaf Valve Screws
  • 8 Head Screws (T25 Torx head)
  • 1 Leaf Valve Alignment Tool

T75 RP75 Required Tools (Not Included)

  • Crescent/Adjustable End Wrench
  • 1/4" Drive Ratchet
  • 5/32" Socket
  • T25 Torx Socket
  • T27 Torx Socket
  • 7/16" Socket
  • 1/4" Drive Torque Wrench (1–120 in lb)
  • 1/4" Nut Driver
  • #2 Flat Head Screwdriver
  • Pick Tool
  • Anti-Seize
  • Optional Heat Source
Airmax SilentAir Compressor Maintenance Kits - 3/4 HP Compressor Replacement Kits Shown

1 HP SilentAir Compressor Maintenance Kit Components & Required Tools

1 HP T100 (RP100) Maintenance Kit – For SilentAir compressors in PondSeries PS60 systems (5–6 plates) and LakeSeries LS120 systems (6–12 plates).

T100 RP100 Included Components

  • 2 Head O-Rings
  • 2 Cylinder Sleeves
  • 2 Piston Retainer Plate Screws (T27 Torx head)
  • 2 Piston Cups
  • 2 Cylinder O-Rings
  • 4 Leaf Valves
  • 4 Leaf Valve Screws (#2 Phillips head)
  • 8 Head Screws (T25 Torx head)

T100 RP100 Required Tools (Not Included)

  • Crescent/Adjustable End Wrench
  • 1/4" Drive Ratchet
  • 5/32" Socket
  • T20 Torx Screwdriver
  • T25 Torx Socket
  • T27 Torx Socket
  • 7/16" Socket
  • 1/4" Drive Torque Wrench (1–120 in lb)
  • 1/4" Nut Driver
  • #2 Flat Head Screwdriver
  • #2 Phillips Screwdriver
  • Pick Tool
  • Anti-Seize
  • Optional Heat Source
Airmax SilentAir Compressor Maintenance Kits - 1 HP Compressor Replacement Kits Shown

Selecting the Right SilentAir Compressor Maintenance Kit

Airmax G25 (RP25 74R) Compressor Airmax G25 (RP25 87R) Compressor Airmax G33 (RP33 71R) Compressor Airmax G33 (RP33 82R) Compressor Airmax G50 (RP50 72R) Compressor Airmax G50 (RP50 87R) Compressor Airmax G75 (RP75 72R) Compressor Airmax T75 (RP75) Compressor Airmax T100 (RP 100) Compressor
Compressor Model G25 (RP25 74R)  2016 or Older G25 (RP25 87R)  Post 2016 G33 (RP33 71R)  2010 or Older G33 (RP33 82R)  Post 2010 G50 (RP50 72R)  2016 or Older G50 (RP50 87R)  Post 2016 G75 (RP75 72R)  Post 2016 T75 (RP75)
Post 2022		 T100 (RP 100)  Post 2022
Horsepower 1/4 HP Single Piston 1/4 HP Single Piston 1/3 HP Dual Piston 1/3 HP Dual Piston 1/2 HP Dual Piston 1/2 HP Dual Piston 3/4 HP Dual Piston 3/4 HP Dual Piston 1 HP Dual Piston
Compatible Airmax System Models AM30, PS10 SW20HP, PS10 AM60, AM70, AM80*, AM100* AM60, AM70, AM80*, AM100*, PS20, PS30, LS10 PS40, LS20, LS30, LS40*, LS60* SW40HP, PS20, PS30, LS40* PS40, PS80*, LS60* PS40, LS80* PS60, LS120*
Maintenance Kit Required 1/4 HP G25 (RP25 74R) Maintenance Kit Airmax 1/4 HP G25 (RP25 74R) Maintenance Kit Airmax 1/3 HP G33 (RP33 71R) Maintenance Kit Airmax 1/3 HP G33 (RP33 82R) Maintenance Kit Airmax 1/2 HP G50 (RP50 72R) Maintenance Kit Airmax 1/2 HP G50 (RP50 87R) Maintenance Kit Airmax 3/4 HP G75 (RP75 72R) Maintenance Kit Airmax 3/4 HP T75 (RP75) Maintenance Kit Airmax 1 HP T100 (RP100) Maintenance Kit
Part Number SKU: 510108 SKU: 510510 SKU: 510109 SKU: 510111 SKU: 510115 SKU: 510511 SKU: 510512 SKU: 510541 SKU: 510542

(*)Two maintenance kits are required, one for each compressor.


Airmax SilentAir Compressor Maintenance Kit Product Manuals

Check Out Corie’s Experience

Corie, the owner of Mahala Springs and Farm in Tennessee, had tried multiple solutions to aerate her pond without success. We helped her find the perfect pond fountain that truly met her needs, and she couldn't be happier!

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