Product Support
Parts
- Nexus™
- Classic Parts
- Used Parts Inventory
- Remanufactured Parts
- Tools & Supplies
- Hydraulic Hose
- Parts Drops
Service
Product Support Representative
Used Parts Inventory
Engine Prevention
S.O.S. Fluid Analysis
Cat Certified Rebuild Program
Emissions
What would you like to do?
- Order Parts Online
- New Construction Equipment Info
- Rent Construction Equipment
- Search for Used Equipment on MachineryTrader.com
- Generator Rental
- Subscribe to H.O. Penn's E-Newsletter
- Safety Information
- Material Safety Data Sheets
- Find an H.O. Penn Location
- Learn about 'Managing By Values'
- Employment Opportunities
News Headlines
Engine Prevention
See H.O. Penn's full line of Caterpillar Engines and Power Systems
Lower End Overhaul
Install New:
- Thrust and main crankshaft bearings
- Connecting rod bearings
- Oil, oil filters, and fuel filters
- Air filters
- Required gaskets and seals
Inspect:
- Crankshaft and vibration damper
- Main oil pump
- Operational test of engine
Clean & Test:
- Primary fuel filter
- Clean engine
Top End Overhaul
Install New:
- Temperature regulators
- Oil, oil filters and fuel filters
- Air filters
- Required gaskets and seals
- Exhaust studs
Inspect:
- Spacer plate and liner projection
- Camshaft, camshaft rollers and followers
- Intake and exhaust manifolds
- Operational test of engine
Clean & Test:
- Primary fuel filter
- Clean engine
Recondition Or Install Cat Remanufactured:
- Cylinder heads: Install new valve guides, exhaust valves, valve rotators, and any needed seats and intake valves. Grind valves and seats. Resurface cylinder head as needed. Reseal prechambers (part of Caterpillar remanufactured cylinder heads)
- Turbocharger(s): Install Caterpillar remanufactured cartridges (rebearing and reseal cartridges when remanufactured cartridges are not available). Clean both housings. Install new gaskets, seals and bolts.
- Fuel injectors (Cat remanufactured)
- Air fuel ratio control
- Set high and low idle and static timing
Level I Overhaul
Install New:
- Piston rings and cylinder liners (part of Cat remanufactured cylinder liner pack)
- Thrust bearings and crankshaft main bearings
- Connecting rod bearings
- Temperature regulators
- Oil, oil filters and fuel filters
- Air filters
- Camshaft lifter clips
- Required gaskets and seals
- Exhaust studs
- Front and rear crankshaft seals
Recondition Or Install Cat Remanufactured:
- Connecting rods and pistons (part of Cat remanufactured cylinder liner packs)
- Cylinder heads: Install new valve guides, exhaust valves, valve rotators, and any needed seats and intake valves. Grind valves and seats. Resurface cylinder head as needed. Reseal prechambers (part of Caterpillar remanufactured cylinder heads.)
- Turbocharger(s): Install Caterpillar remanufactured cartridges (rebearing and reseal cartridges when remanufactured cartridges are not available). Clean both housings. Install new gaskets, seals, and bolts.
- Fuel injectors (Cat remanufactured)
- Air fuel ratio control
- Reset fuel settings
- Set high and low idle and static timing
- Water pump
- Fan drive: install seals, bearing, and belts
Inspect:
- Spacer plate and liner projection
- Camshaft, camshaft rollers and followers
- Crankshaft end clearance
- Vibration damper
- Rocker arm assembly
- Main oil pump
- Operational test of engine
Clean & Test:
- Primary fuel filter
- Aftercooler core: clean and pressure check. Install new gaskets and seals for aftercooler, air lines, and coolant lines.
- Clean engine
Level II Overhaul
Install New:
- Piston rings and cylinder liners (part of Cat remanufactured cylinder liner pack)
- Thrust bearings and crankshaft main bearings
- Connecting rod bearings
- Temperature regulators
- Oil, oil filters, and fuel filters
- Air filters
- Camshaft bearings and lifter clips
- Required gaskets and seals
- Exhaust studs
- Fan belt set
- Fuel hand priming pump
- Front and rear crankshaft seals
Recondition Or Install Cat Remanufactured:
- Connecting rods and pistons (part of Cat remanufactured cylinder liner packs)
- Cylinder heads: Install new valve guides, exhaust valves, valve rotators, and any needed seats and intake valves. Grind valves and seats. Resurface cylinder head as needed. Reseal prechambers (part of Caterpillar remanufactured cylinder heads.)
- Turbocharger(s): Install Caterpillar remanufactured cartridges (rebearing and reseal cartridges when remanufactured cartridges are not available) clean both housings. Install new gaskets, seals and bolts.
- Fuel injectors (Cat remanufactured)
- Air fuel ratio control
- Reset fuel settings
- Set high and low idle and static timing
- Water pump
- Main oil pump
- Fuel injection pump: Disassemble pump and clean all parts. Install new: Rack bearings, governor bearings, camshaft bearings, governor oil pump gears and cover, servo, governor weights, piston assembly, rack bars and crossover link, gaskets and seals. Calibrate fuel injection pump housing and governor.
- Fan drive: install seals, bearings, and belts
- Oil filter base: Install new relief springs, gaskets, seals, and filters
- Timing advance: Install new springs and calibrate
Inspect:
- Spacer plate and liner projection
- Camshaft, camshaft rollers, and followers
- Crankshaft end clearance
- Vibration damper
- Rocker arm assembly
- Gear train
- Piston cooling jets
Clean & Test:
- Oil cooler: Clean and pressure check. Install new gaskets and seals for oil cooler, oil lines, and coolant lines.
- Primary fuel filter
- Aftercooler core: clean and pressure check. Install new gaskets and seals for aftercooler, air lines, and coolant lines.
- Dynamometer test the rebuilt engine at 100% horsepower rating (loadbank test if unit is a generator set)
- Steam clean and paint engine.
