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Rol-Air K28 Pump & Parts
[Individual Repair Parts]

Product Details

Whole pump or parts.


Torque specs:
Connecting Rods:121.5 in lbs. (oil holes facing in)
Roller Bearing carriers:130 in lbs.
Cylinder Bolts:330 in lbs.
Head bolts:347 in lbs. (in X pattern)
For regulators, pressure switches, pressure gauges, drain cocks and accessories, see "Air Compressor Accessories".

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Displaying 1 to 21 (of 21 products) Result Pages:  1 
 Item+   Description   Part Number   Price   Qty 
 (001) K28 Pump (for gas engines, less flywheel)   For gas engine powered units. Less flywheel. Use your old flywheel and aftercooler .Includes air filter assembly. Add oil, bolt on and go! For regulators, pressure switches, pressure gauges, drain cocks and accessories, see "Air Compressor Accessories".   PMP22K28CHLF-G   $644.00 
 (002) K28 Pump (for gas engines)   For gas engine powered units. Includes air filter assembly, flywheel and intercooler. Add oil, bolt on and go! For regulators, pressure switches, pressure gauges, drain cocks and accessories, see "Air Compressor Accessories".   PMP22K28CH-G   $660.00 
 (003) K28 Pump (for electric motors, less flywheel)   For electric motor powered units. Less flywheel. Use your old flywheel and aftercooler .Includes air filter assembly. Add oil, bolt on and go!   PMP22K28CHLF-E   $644.00 
 (004) K28 Pump (for electric motors)   For electirc motor powered units. Includes air filter assembly, flywheel and intercooler. Add oil, bolt on and go!   PMP22K28CH-E   $660.00 
 Aftercooler   Finned aftercooler. Order gasket to go with aftercooler.   32902730CH   $73.51 
 Aftercooler Gasket   Order when replacing or removing aftercooler.   30502330CH   $4.20 
 Air Filter Assembly w/ element   Includes replaceable inner filter.   FS14075   $27.45 
 Air Filter Element   Element only for air filter assembly. Replaceable Filter for Assembly Order extra to protect your investment.   30-082   $9.98 
 Bearing Inserts (Order 2 for both rods)   If you start to hear knocking from your pump, then you need to replace your bearing inserts. Check crank to make sure it is not damaged.   31100210CH   $21.59 
 Connecting Rod   Replace these if bent or worn. Check crank for damage first. Same rod for hi and lo pressure piston. (includes upper bushing)   31101990CH   $74.35 
 Crankshaft   If your crank is grooved, replace it to ensure that your rebuild will not be in vain. If there are only surface deposits of aluminum from the bearings, then remove them with a soft wire brush and then polish your crank.   30204610CH   $189.59 
 Cylinder   Replace if rusted, pitted or grooved.   31602020CH   $265.61 
 Flywheel   Replace if a spoke if cracked or it is slipping on the crankshaft.   31004620CH   $146.62 
 Gasket Kit   Includes all necessary gaskets for rebuilding pump.   K28Gaskets   $59.45 
 Head   Unit fall and break the head. Make sure to order gasket kit as well.   31302700CH   $128.37 
 Hi pressure piston   Smaller hi pressure piston. Piston only. No rings.   31203050CH   $93.52 
 Low pressure piston   Larger low pressure piston. Piston only. No rings.   31202190CH   $93.41 
 Rebuild Kit (Rings, valves, gaskets, oil & filter)    Includes most needed parts for full rebuild. Includes gasket set, site glass, breather/dipstick, rings and valves and 30W oil. (Order 2 pair of bearing inserts if you hear rod knocking)    K28REPKIT/30   $167.66 
 Ring Set for both pistons   Order rings if your unit is using oil and your valves are good. Hone the cylinder walls prior to installing. Order cylinder gasket if only removing cylinder and installing rings.   K28Rings   $74.59 
 Wrist Pin, High-Pressure   High-Pressure Wrist Pin (Piston). Replace when installing new piston.   31204670CH   $12.15 
 Wrist Pin, Low-Pressure   Low-Pressure Wrist Pin (Piston). Replace when installing new piston.   31208790CH   $16.42 
Displaying 1 to 21 (of 21 products) Result Pages:  1 
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