OEM parts are critical for maintaining factory reliability—especially for the 7.3’s HEUI (Hydraulically Actuated Electronic Unit Injection) system.

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1. Camshaft Position Sensor (CPS)

Part Numbers: F4TZ-12K073-C / F7TZ-12K073-B

Why It’s Critical:

The CPS is one of the most common failure points on the 7.3 Powerstroke.  Years ago there was a safety recall on the problematic sensor.  

Symptoms of Failure:

• Sudden engine stall
• Crank/no-start condition
• Intermittent shutdown while driving

Pro Tip:

✔ If you own a 7.3L Powerstroke Diesel, its a good idea to keep a spare CMP Sensor in your truck—this is a known roadside failure item.

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2. Injection Control Pressure (ICP) Sensor

Part Numbers: PU7Z-9F838-A / YC3Z-9F838-A

Function:

Monitors high-pressure oil system that controls injector operation.

Failure Symptoms:

• Rough idle
• Hard starting
• Loss of power
• Oil contamination inside connector

Why OEM Matters:

Accurate pressure readings are critical for proper injector timing and performance.

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3. Injection Pressure Regulator (IPR) Valve

Part Numbers: F81Z-9C968-AB / PU7Z-9C968-B

Function:

Controls oil pressure delivered to injectors.

Common Issues:

• Surging or unstable idle
• No-start conditions
• Inconsistent throttle response

Key Insight:

A failing IPR can mimic other fuel system problems—OEM reliability is essential.

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4. Fuel Filter Drain Valve Kit

Part Numbers: F5TZ-9A153-A / F81Z-9A153-AA

Purpose:

Allows draining water and contaminants from the fuel bowl.

Why It Fails:

• O-ring wear
• Cracking from heat cycles
• Fuel leaks

Upgrade Benefit:

✔ Prevents fuel leaks and contamination issues

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5. OEM Motorcraft Fuel Filter Housing

Part Numbers: F6TZ-9155-AB / F81Z-9155-AC

Role:

Houses the fuel filter and maintains fuel system integrity.

Common Problems:

• Cracking
• Leaking seals
• Poor filtration performance

Why Replace:

✔ Protects injectors
✔ Ensures proper fuel delivery

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Top 5 Aftermarket 7.3 Powerstroke Upgrades (Best-Selling Performance Parts)

These upgrades are proven to improve reliability, airflow, and overall performance—especially for towing and daily-driven trucks.

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1. Non-EBPV Turbo Pedestal & Exhaust Housing

Replaces:

Factory pedestal with Exhaust Back Pressure Valve (EBPV)

Why Upgrade:

• Eliminates common oil leaks from EBPV actuator
• Removes exhaust restriction

Benefits:

✔ Improved turbo reliability
✔ Cleaner engine bay
✔ Reduced failure points

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2. Bellowed Up-Pipe Kit

Replaces:

Factory crush-style seal up-pipes

Why It’s a Must-Have:

Stock up-pipes are notorious for leaking due to thermal expansion.

Benefits:

✔ Leak-free design
✔ Faster turbo spool
✔ Improved exhaust flow

One of the highest-value upgrades for any 7.3 owner.

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3. Intercooler Pipe Kit (Super Duty Only)

Replaces:

Factory intercooler boots and piping

Why Upgrade:

• Stock boots can blow out under boost
• Plastic piping restricts airflow

Benefits:

✔ Increased boost reliability
✔ Better airflow efficiency
✔ Reduced boost leaks

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4. Hydraulic HPOP Hose Kit w/ Crossover Line

Function:

Upgrades factory high-pressure oil lines

Why It’s Important:

Stock hoses degrade over time, leading to leaks and pressure loss.

Benefits:

✔ Increased oil system reliability
✔ Improved injector performance
✔ Eliminates weak factory connections

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5. Billet CCV (Crankcase Vent) Upgrade

Part Number: SWF-6A665A

Purpose:

Replaces factory CCV system

Why Upgrade:

• Commonly overlooked maintenance item
• Keeps crankcase system operating at optimal performance
• Cleanable filter element

Benefits:

✔ Cleaner intake system
✔ Reduced oil buildup
✔ Improved long-term engine efficiency

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Best Strategy for 7.3 Powerstroke Owners

For the best results:

Use OEM Parts For:

• Sensors (CPS, ICP)
• Fuel system components
• Critical engine controls

Use Aftermarket Upgrades For:

• Turbo & exhaust systems
• Oil delivery systems
• Airflow & boost components

✔ This combination maximizes reliability + performance + longevity

When it comes to keeping your 7.3 Powerstroke running at its best—or upgrading it beyond factory limits—where you buy your parts matters just as much as what you buy. At SWAG Performance Parts, we specialize in the exact OEM replacements and high-demand aftermarket upgrades 7.3 owners trust every day. From hard-to-find Motorcraft components to proven performance upgrades like non-EBPV turbo pedestals, bellowed up-pipes, and HPOP hose kits, everything we offer is hand-selected for reliability, fitment, and real-world performance. No guesswork, no junk parts—just the right solutions backed by real diesel experience. If you’re serious about maintaining or building your 7.3 the right way, SWAG Performance Parts is your go-to source.

And while the Powerstroke Diesel is a cornerstone of what we do, SWAG Performance Parts goes far beyond just Powerstroke Diesel trucks. We carry a full lineup of OEM replacement parts and proven performance upgrades for Cummins and Duramax diesel platforms as well. Whether you're maintaining a daily driver, building a tow rig, or pushing for more power, we’ve got the parts and expertise to support your build—no matter the badge on your truck.