Labwork Engine Crankshaft Ventilation Valve for Ford 6.9L Diesel e3tz-6a665-a
Labwork Engine Crankshaft Ventilation Valve for Ford 6.9L Diesel e3tz-6a665-a is a direct-fit CDR valve priced at $31.35. Designed for 1983–1994 Ford diesel trucks, it ensures proper crankcase pressure control and prevents oil leaks, ideal for F-250, F-350, E-Series, and Super Duty maintenance.
● In stock
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Key features
- Direct fit for 6.9L and 7.3L Ford diesel engines
- Replaces OEM part E3TZ-6A665-A exactly
- Maintains proper crankcase vacuum pressure
- Built for high-heat diesel engine environments
- Fits 1983–1994 F-250, F-350, E-Series, Super Duty
- No modifications or adapters required
- Durable construction for long service life
Pros
- +Exact OEM replacement fit and function
- +Prevents oil leaks and engine contamination
- +Affordable at $31.35 with solid durability
- +Easy to install for most DIYers
- +Trusted brand for classic Ford diesel parts
Cons
- −Only fits older Ford diesel models
- −Not serviceable—must replace if failed
- −Limited availability outside specialty suppliers
About Labwork Engine Crankshaft Ventilation Valve for Ford 6.9L Diesel e3tz-6a665-a
What is Labwork Engine Crankshaft Ventilation Valve for Ford 6.9L Diesel e3tz-6a665-a?
The Labwork Engine Crankshaft Ventilation Valve for Ford 6.9L Diesel e3tz-6a665-a is an OEM-spec replacement part designed to regulate crankcase pressure in Ford’s 6.9L and 7.3L IDI diesel engines. Commonly referred to as a CDR (crankcase depression regulator) valve, this component plays a critical role in the engine's ventilation system by preventing excessive pressure buildup that can lead to oil leaks, reduced engine efficiency, and sludge formation. Built to match the original Ford E3TZ-6A665-A specification, it’s a trusted solution for maintaining engine health in older Ford diesel trucks.
Key features
- Direct Fit Replacement — Matches OEM specifications for seamless installation on 6.9L and 7.3L Ford diesel engines.
- Durable Construction — Engineered to withstand high heat and pressure in diesel crankcase environments.
- Proper Crankcase Pressure Control — Maintains optimal vacuum levels to prevent oil leaks and blow-by.
- Compatible Applications — Fits 1983–1994 F-250, F-350, Super Duty, and E-Series vans with diesel engines.
- OEM Part Number Match — Exact replacement for E3TZ-6A665-A, ensuring compatibility.
- Easy Installation — No modifications required; replaces the factory unit directly.
- Trusted Aftermarket Brand — Labwork delivers reliable performance for classic diesel repairs.
Who is Labwork Engine Crankshaft Ventilation Valve for Ford 6.9L Diesel e3tz-6a665-a for?
This valve is ideal for owners of older Ford diesel trucks from the 1980s and 1990s, especially those maintaining or restoring F-Series and E-Series vehicles. DIY mechanics and professional technicians alike will appreciate its plug-and-play design and reliable function. It’s particularly valuable for users experiencing oil leaks, rough idle, or excessive crankcase pressure—common symptoms of a failing CDR valve.
How does Labwork Engine Crankshaft Ventilation Valve for Ford 6.9L Diesel e3tz-6a665-a compare?
Compared to generic or off-brand crankcase valves, the Labwork unit offers exact OEM fitment and performance, avoiding the trial-and-error of universal parts. While some aftermarket options may be cheaper, they often lack the precise calibration needed for Ford’s diesel ventilation system. It performs on par with original equipment, making it a smarter long-term choice than low-cost imitations that may fail prematurely.
Best use cases
- →Replacing failed CDR valve in 6.9L diesel
- →Fixing oil leaks from valve cover or dipstick
- →Restoring proper crankcase vacuum
- →Routine maintenance for 1980s–90s Ford trucks
- →Preventing sludge buildup in diesel engine
Is Labwork Engine Crankshaft Ventilation Valve for Ford 6.9L Diesel e3tz-6a665-a right for you?
This valve is best for owners of 1983–1994 Ford diesel trucks experiencing crankcase pressure issues. Ideal for DIY mechanics with basic hand tools; no advanced skills required. Consider this part over universal valves or used OEM units for reliable, long-term performance. Always verify engine size and model year before purchase.
How it compares: Compared to universal crankcase valves, this Labwork unit offers precise fit and calibrated performance. It outperforms cheap alternatives that lack OEM consistency, while costing less than dealer-sourced originals.
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What does the crankshaft ventilation valve do?
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The crankshaft ventilation valve, or CDR valve, regulates pressure in the engine crankcase. It maintains vacuum in diesel engines to prevent oil leaks, blow-by, and sludge buildup, ensuring clean and efficient operation.
Does this fit 7.3L IDI diesel engines?
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Yes, this Labwork valve fits both 6.9L and 7.3L Ford IDI diesel engines from 1983 to 1994. It's a direct replacement for the OEM E3TZ-6A665-A part used across these engine platforms.
How do I know if my CDR valve is failing?
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Symptoms include oil leaks from the valve cover, dipstick, or turbo, rough idle, excessive crankcase pressure, or visible blow-by. Replacing the CDR valve can resolve these issues if it's stuck or worn out.
Is the Labwork valve made to OEM specs?
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Yes, the Labwork valve is engineered to match the original Ford E3TZ-6A665-A specifications, ensuring correct fit, function, and durability for 6.9L and 7.3L diesel engine applications.
Can I install this valve myself?
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Yes, most DIY mechanics can install this valve with basic hand tools. It mounts directly in place of the old unit with no modifications, making it a straightforward repair for experienced or novice users.
How much does Labwork Engine Crankshaft Ventilation Valve for Ford 6.9L Diesel e3tz-6a665-a cost?
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Labwork Engine Crankshaft Ventilation Valve for Ford 6.9L Diesel e3tz-6a665-a is $31.35 at Lab Work Auto. Prices may change — click through to Lab Work Auto for the latest.
Is Labwork Engine Crankshaft Ventilation Valve for Ford 6.9L Diesel e3tz-6a665-a in stock at Lab Work Auto?
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Yes, Labwork Engine Crankshaft Ventilation Valve for Ford 6.9L Diesel e3tz-6a665-a is currently in stock at Lab Work Auto.
Specifications
- SKU
- F8-017193