CNC Fab Stage 2 HPOP for 1994.5-1995 7.3L Powerstroke

CNC Fab Stage 2 HPOP for 1994.5-1995 7.3L Powerstroke

The CNC Fab Stage 2 High Pressure Oil Pump is a performance upgrade designed for early OBS 7.3 Powerstroke trucks that require significantly more oil volume than a stock pump can provide.

This pump typically flows approximately 30% more oil than a brand-new Bosch 1999.5-2003 HPOP, giving it the capacity required to support larger hybrid injector setups such as 230cc and 250cc hybrid injectors. This additional oil volume allows the HEUI injection system to maintain proper pressure even when fueling demands increase.

The Stage 2 pump is commonly recommended for trucks running 230cc to 250cc hybrid injectors. While some setups have successfully used it with 250/200 injectors, extremely aggressive race calibrations may require an even larger oil system depending on injector build and tuning strategy.

Key Features

• Fits 1994.5-1995 Ford 7.3L Powerstroke engines
• Stage 2 upgraded oil flow capacity
• Approximately 30% more oil flow than a new Bosch 99.5-03 pump
• 10-12% more flow than many popular performance HPOPs
• Upgraded internal components for higher oil volume
• Steel thread inserts help prevent stripped mounting threads
• New Viton O-rings for reliable sealing
• Includes new installation gasket
• Flow bench tested to prevent DOA pumps
• Includes individual flow test result sheet
• 1 Year Unlimited Mileage Warranty

Injector Compatibility

The CNC Fab Stage 2 HPOP is designed for higher fuel demand applications while still working well with stock injector setups.

• Excellent pump for 230cc hybrid injectors
• Recommended for many 250cc hybrid injector builds
• Works well with stock injectors
• 250/200 injectors may work depending on tuning and injector builder
• Larger competition injectors typically require a larger oil system

Why the HPOP Matters on the 7.3 Powerstroke

The 7.3 Powerstroke uses a HEUI injection system that relies on high pressure engine oil to fire the injectors. The High Pressure Oil Pump is responsible for supplying that oil pressure, which directly affects fueling, injector response, and engine performance.

When larger injectors are installed, oil demand increases significantly. Upgrading the HPOP ensures the system can maintain adequate oil pressure to properly control injector operation.

Common Symptoms of an Undersized or Failing HPOP

• Hard starting when warm
• Long crank times
• Low ICP pressure readings
• Power loss at higher RPM
• Injectors falling off at higher fueling levels

Installation Instructions

View 7.3 Powerstroke HPOP Installation Instructions (PDF)

About CNC Fabrication

This pump is manufactured by CNC Fabrication, a respected builder of high-performance 7.3 Powerstroke oil system and fuel system components known for precise machining and real-world diesel performance testing.

Fitment

Core Return Information

• Correct 94.5-95 HPOP housing required for full core credit
• 96-03 cores without the check valve accepted with 25% reduced credit
• Full core refund available if returned within 45 days
• 10% reduction after 45 days
• 50% reduction after 90 days unless prior arrangements are made
• Allow 3-5 days for accounting to process refunds after core arrival

Frequently Asked Questions

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Part Number: CNC Fab 424016