google-site-verification: google3d624ada82089809.html



Building The RAZOR Receiver

Assembly Video:

  Shopping Cart Shopping Cart - 0 item(s)
View/Hide options
Subtotal $0
Discount(s) [DISCOUNTS]
Apply Coupon

Calculate Shipping

[shipping_city] [shipping_state] [shipping_zip]
 10/22 Compatible Parts and Accessories
 22 MAGNUM Receiver & Parts
 RAZOR Receiver Blanks
 Magazines Ruger, GSG, M&P, HK, BC
 Barrels and Accessories
 Tools & Tool Kits
 AR-15 / M16 & Stuff
 Discount/Reduced Price
Bellanca Viking Gear Up Check Valve
GUCV-BV Bellanca Viking Gear Up Check Valve
Piper Gear Powerpack
PGM PUMP Piper Gear Powerpack
Allen Fuel Valve Handle
ALLEN-FH-2 Allen Fuel Valve Handle
Long EZ Vertical Hold Auto-pilot Bell horn 1.25
Long-EZ BH 1.25 Long EZ Vertical Hold Auto-pilot Bell horn 1.25
Piper PA28 Series Aircraft Heater & Defrost Knobs
PA28 HT / DF Piper PA28 Series Aircraft Heater & Defrost Knobs

Only ships Firearm Parts to the USA
Our Federal Government makes the rules!
All orders are shipped next business day!
Thank you for choosing Select Fire for your rim-fire needs.


Rockwell Commander Gear Powerpack

Part Number RCGM PUMP
review 5 Review(s)
Rockwell Commander Gear Powerpack
Aircraft Hydraulic Powerpack (landing gear)
Write a Review Write a Review
Your Price:  
Call to Order this part: 586-646-5671 ($95.00 cash discount)
Choose Options
Pump Motor Assembly help
Link to Pictures:

Video Maintenance Powerpack: (14) Commander Gear Swing LVP - YouTube


This statement must be said up front to comply with the FAA "Our powerpack is not Certified". However, our pump will operate gear just like factory Prestolite units. It has an aluminum self-contained reservoir that uses 5606 hydraulic fluid. Pump mounts in the same physical location as a HYC5001, HYC5005 or HYC5006 powerpacks. Our unit connects to all three aircraft AN-4 hydraulic line fittings (Gear Up, Gear Down and Return/Dump), Pump wiring uses the same 3 wire aircraft power circuits (GREEN, BLUE and BLACK). Pump operates with your panel mounted Gear UP and DOWN switch just like factory gear pump. Our pump builds the same pressures in both hydraulic circuits as the factory gear pumps (HYC5001, HYC5005 and HYC5006). You will not be able to tell the difference between our powerpack and the HYC5000 series powerpack. With the exception, ours costs about 1/3rd the price, it's a better unit, bolts in easy, is quieter, comes with installation instructions and has thousands of test cycles. For the last 30 years it has been used for retractable gear operation on high performance experimental aircraft (Velocity, Berkut, E-racer, Long EZ and several others. It is even used on some 114B Commanders and Piper aircraft with a different hydraulic reservoir. This unit has been in service for over 30 years on other aircraft, flying the same skies and landing on the same runways as your aircraft. 

Call me for more information.


Our gear powerpack comes with the mounting bracket, aluminum reservoir, Rubber isolation pads, pre-formed hydraulic tubes and fittings to complete a basic install in just a couple hours. You will need common hand tools for the installation and a 7/16 crow foot. Note: it may look like the units on eBay but there are several modifications to the pump & reservoir to function properly in an aircraft.  

I would like to provide a little insight to the Prestolite Gear Powerpacks; They haven't made these units in over 40 years. The price for overhaul has gone from 1500 dollars to as high as $3,950.00 in less than 4 years. Core exchanges are between $3,000 and $3,500. The overhauled HYC5000 series powerpacks are only lasting a few years when returned to service. I'll explain why this is taking place. First, the repair shops are all price fixing, allowing them to gouge the consumer. They know there are no alternatives to these Prestolite powerpacks.  However, there is another issue at hand, I told you they haven't made these units in over 4 decades. Let me explain what is transpiring at the authorized repair shops.

I spoke with an authorized powerpack overhaul shop, not going to mention the shop as I told tech I would not share the facility name. I will say this is a large repair facility that you have most likely heard the name many times. The reason there is a 3500 dollar core charge for these pumps is, they can't get replacement parts, they are not made anymore. I'm talking about the aluminum pump casting and the aluminum base to the reservoir. They can get the DC motors. for under 60 dollars and or the small motor parts (brushes, bushings, seals, etc...) for a just a few dollars.  All those are common parts for many other DC motor applications. However, the parts that take a beating like the actual shaft driven hydraulic pump that mounts to the unit's base and the aluminum valve body that is cast into the base plate are not available. The balls and springs are also common replacement parts, but they don't go bad. So, when they sell you an overhauled powerpack, you're getting a DC motor with brushes, bearing and the armature commutator turned flat, about 12 dollars in parts. Fields out of another good case, only if it needs new fields. You are not getting anything new in the pump assembly except maybe some .30 cent springs and some .50 cent steel balls and about 45 cents in O-rings. I forgot to mention, there is still one manufacture making the Gear UP lock valve, but they will not install that unless the pump needs it. 

So, these pumps are failing more frequently, yet the price keeps going up. This is because they are running out of functional/used cores to steal parts from. You're getting the best of the warn out parts they take in as cores. What a wonderful system, 3500 dollars, plus a 3000 dollar core charge and you get back someone else's defective worn out pump parts that are just functional enough to pass the bench test. Once you bolt in the plane, GOOD LUCK! We are all dealing with the same used, worn-out Prestolite HYC5000 series pumps.

Our powerpack was selected and modified by an engineer, that designed components for the automotive industry for several decades. He is also an IA and has worked on aircraft for over 40 years to include US military aircraft. In addition, he holds a commercial instrument rating in Multi Engine fixed wing and Turbine Helicopters. He was a US Army Maintenance Officer and attended the US Army Test pilot school in Ft. Eustis VA. He also has dealt with Prestolite pump failures and understood there needed to be an affordable alternative solution.  

These Units are in stock and will ship the same day.
Call me for more information.


Customer Reviews
Rating Good as new
Being AOG due to gear issues and unable to find a replacement Prestolite, this did the trick. Back in the air within a week.
  Did you find this helpful?    2 of 2 Found Helpful
Reviewed by:  from KOAK. - 10/18/2022
Rating PowerPack
Have a 79í 114A GT with plagued powerPack problems with UP check valve. Replaced with this pump several months ago and has been the best thing I have done yet to plane. Instructions are simple and straightforward for installation. Pump runs so quiet and smooth you almost donít think itís working. Access to oil fill and pump itself is now so much easier. Finally a new and BETTER PUMP.
  Did you find this helpful?   
Reviewed by:  from KOMN. Ormond Beach. - 2/6/2023
Rating Best product for the job
This power pack unit is as advertised. Once getting the new one in with the adapted manifold and tube extensions it fits perfectly. Unit also works as promised, actually cycles gear up/down just a little faster. Works Great!!!
  Did you find this helpful?   
Reviewed by:  from Tualatin. - 2/1/2023
Rating N5903N
This power pack unit is as advertised. As anyone who has ever had to work on getting the original out and back in, this job is quite challenging, requiring much patience, dexterity, a few choice words and perseverance. But once getting the new one in with the adapted manifold and tube extensions it fits perfectly and any future reasons for removing unit will be much easier, not that I expect to have to. Unit also works as promised, actually cycles gear up/down just a bit quicker. I also like that there is a dipstick to check oil level.
  Did you find this helpful?   
Reviewed by:  from La Porte. - 1/27/2023
Rating Great alternative
Replaced my old pump which used to cycle frequently in flight for short periods. The new pump is bulletproof - holds pressure never cycles in flight. I did a video comparing both extension and retraction with the new pump to the same on the old pump and they are identical TimeWise. Still did a great job of matching pressure and flow rate to the airplanes requirements.
  Did you find this helpful?   
Reviewed by:  from Kgeu Glendale Arizona . - 1/26/2023
Related Items
Weatherhead & Homebuilders Fuel Valve Handle
Weatherhead & Homebuilders Fuel Valve Handle
Average Rating 0 Review(s)
Your Price: $29.00
Vacuum Adapter Plate 0235 / 0290
Vacuum Adapter Plate 0235 / 0290
Average Rating 0 Review(s)
Your Price: $55.00
On sale: $40.00 On Sale
Allen Fuel Valve Handle
Allen Fuel Valve Handle
Average Rating 0 Review(s)
Your Price: $29.00
Rockwell Commander Fuel Cap Set
Rockwell Commander Fuel Cap Set
Average Rating 0 Review(s)
Your Price: $175.00