Hiblow Outback 80 / HP-80 High Heat Diaphragm Replacement Kit
PrintGENUINE FACTORY CERTIFIED PARTS!
The Hiblow Outback High Heat Diaphragm Replacement Kit is designed to restore performance on both the standard Hiblow HP-80 and the new Outback 80 linear septic air pumps. This genuine OEM kit features re-engineered high-heat diaphragms that are specifically built to withstand extreme temperatures common in the South and Southwest United States.
These upgraded diaphragms resist heat from high ambient temperatures, poorly ventilated enclosures, and elevated system pressure. The kit includes everything needed for a complete diaphragm and air filter replacement, making it the ideal choice for customers in hot climates or those wanting maximum durability.
Diaphragms should typically be replaced every 4–6 years depending on operating conditions. When diaphragms fail, the pump will shut off and the alarm should activate.


In Stock
Item #:PHPCS0011P
Manufacturer: Hiblow
Ships Friday
with FREE SHIPPING
Order in the next: -- hr --min --sec
Ship Date Fri, Jul 10
Delivery: 1-4 Business Days
KEY FEATURES & BENEFITS
- High-Heat Diaphragms — Re-engineered material for superior performance in extreme heat conditions
- Fits Both Models — Compatible with standard HP-80 and new Outback 80 pumps
- Genuine Factory Certified Parts
- Restores optimal airflow and pressure for aerobic septic systems and pond aeration
- Includes replacement air filter for complete service
- Easy 15–30 minute installation (see video below)
THIS REPAIR KIT INCLUDES
- 2 Outback 80 High Heat Diaphragms with Mounting Blocks
- 2 Diaphragm Heads with Factory Installed Air Check Valves
- 2 Replacement Locking Nuts and Washers
- Replacement Safety Screw
- Replacement Air Filter
THIS REPAIR KIT FITS
The Hiblow HP60/80 (#80PC000042) rebuild kit is compatible with all of the following models:
- All Hiblow HP-60-xxxx Models
- All Hiblow HP-80-xxxx Models
- Hiblow Dual Port Models HP-50W, HP-60W, HP-80W
- Clearstream CS103EL
- Aqua-Safe AS500
- Aqua-Aire AA500
- Hoot Troy Air H365, H450, H500, LA500, H600
- Delta Whitewater Model 60
- Delta Whitewater Model 80
HIBLOW HP-60 & HP-80 REPAIR INSTRUCTIONS
Below are instructions on how to install this repair kit in a Hiblow air pump. Please be sure to disconnect power from the unit before completing repairs.
TOOLS NEEDED TO COMPLETE INSTALLATION:
- 7mm or 1/4in Wrench, Socket, or Nut Driver
- Phillips Screwdriver
- Flathead Screwdriver
- Needlenose Pliers (Optional)
- Time to complete: 15-30 minutes
STEP 1: REMOVE THE AIR PUMP UPPER HOUSING

Remove all the bolts from the four corners. NOTE: DO NOT DISCARD BOLTS, THEY WILL BE REUSED. This is done easier using a 7mm or 1/4in socket instead of a phillips screwdriver. Using a phillips screwdriver could cause you to strip out the bolts. If upper pump housing is difficult to remove due to the heavily stuck internal seal, pry it open by inserting the tip of a flat-head screwdriver into the clearance between the exhaust nozzle and upper housing.
Pull off the white sound absorber from around the internal pumping unit and disconnect the L-TUBES on each end from the diaphragm head.
STEP 3: REMOVE THE DIAPHRAGM HEADS

Using a phillips screwdriver. Remove the four screws that hold the chamber block and the casing block on both side (4 screws on each side). NOTE: DO NOT DISCARD SCREWS, THEY WILL BE REUSED.
STEP 4: REMOVE THE DIAPHRAGMS

Using a 7mm (1/4in) wrench or nut driver remove the U-lock nuts that hold the diaphragm to the magnetic rod block. Remove one of the diaphragms from the actuating rod and pull out the other diaphragm with the magnetic rod. Finally separate the diaphragm mounting block and rod.
STEP 5: INSTALL THE NEW DIAPHRAGMS

Install the new diaphragm on the actuating rod before inserting the rod back into the pump. Use new U-lock and washer that come with the kit to prevent loosening and causing failure of the pump.
Insert the actuating rod in accordance with the gap of the frame. Secure the diaphragm on the other side and tighten the U-lock nut with the box driver. Make sure the gapes between the actuating rod and the electromagnet are even.
STEP 5: INSTALL THE NEW DIAPHRAGM HEADS
Install the heads on both sides with the 4 screws that were removed originally. Reconnect the L-Tubes to the diaphragm head on each side.
STEP 6: INSTALL THE NEW SAFETY SCREW

Draw a new safety screw through the hole in the SP switch and the holes in the L shaped lever and spring contact. Fasten the screw with the nut supplied and tighten with a flathead screwdriver. The screw is designed so that the nut will turn freely when it is properly fastened. Stop tightening when this happens.
A trick to getting the nut on the safety screw is to use a pair of needlenose pliers to hole the nut in place while you turn the screw into it.
STEP 7: INSTALL THE SOUND ABSORBER AND UPPER HOUSING

Replace the sound absorber removed in STEP 2 and place the upper housing back on the body. Secure the upper housing with the bolts that were removed in STEP 1.
STEP 8: ALL DONE!
Hook your air pump back up to your system!
WHY SHOP WITH SEPTIC SOLUTIONS?
- Authentic OEM Parts: As an authorized Hiblow distributor, we provide factory-certified components, ensuring superior quality over aftermarket or counterfeit products.
- Expert Support: Our team, with over 25 years of wastewater expertise, is available to assist with maintenance tips or part selection. Call 1-877-925-5132 or email sales@septicsolutions.com.
- Fast, Free Shipping: Orders placed by 2 PM CST ship the same day with free 2-3 day delivery.
- Extensive Inventory: Over 1,500 septic products in stock, including pumps, aerators, and replacement parts, ready to meet your needs.
- Trusted Since 1989: A family-owned business committed to quality and customer satisfaction, backed by over 20,000 4+ star reviews across the web.
Products Other Customers Were Interested In:
- Hiblow Outback 80 Septic Air Pump
4.2 cfm, 80 LPM, 2 Year Warranty, Built for Extreme Heat / High Pressure!
Item #:HP80-OB
Our Price: $319.00MSRP: $355.00 - Hiblow HP-60/80 Rebuild Kit
Genuine Factory Certified!
Item #:80PC000042
Product VideoOur Price: $85.00MSRP: $125.00Free ShippingView Product - Hiblow HP-60/80 Diaphragms Only
Genuine Factory Certified!
Item #:80PD000041
Product VideoOur Price: $60.00MSRP: $85.00Free ShippingView Product - Hiblow HP-80 Septic Air Pump
4.2 cfm, 80 LPM, 2 Year Warranty
Item #:HP80
Product VideoOur Price: $299.00MSRP: $335.00Free ShippingView Product - Hiblow HP-60/80 Magnetic Rod Block
Item #:80PR000040
Product VideoOur Price: $59.00MSRP: $75.00Free ShippingView Product























