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The 4R75W is the upgraded 4R70W with stronger sun shell and updated valve body. Most 4R70W parts cross over. The differences are in the OD planet and pressure regulator.
Years
2003-2010
Fits
Ford F-150, Expedition, Lincoln Navigator
Parts In Stock
Full catalog at Gearbox Insider
Ship Time
Same-day before 2pm ET
Common 4R75W Failures & Fixes
Use this as a starting point for diagnosis. Click through to the specific part once you've narrowed it down.
| Symptom | Most Likely Fix |
|---|---|
| Burnt OD planet | OD planet kit |
| Pressure regulator wear | boost valve and regulator |
| Slipping reverse | master rebuild kit |
What's In the 4R75W Catalog
The full Sonnax-grade aftermarket and OE-equivalent catalog for the 4R75W family is on Gearbox Insider. That's where the inventory lives, ships from, and updates in real-time.
- Master rebuild kits (gaskets, seals, friction modules)
- Valve body kits (Sonnax)
- Solenoid sets (shift, EPC, TCC)
- Speed sensors (ISS & OSS)
- Clutch packs & bands
- Pumps, drums, planets, sprags
- Pressure regulator & boost valve kits
- Bushings, bearings, thrust washers
Why Buy From Us
Spec parts
not "compatible"
not "compatible"
Ship before
2pm Eastern
2pm Eastern
Shipping
no minimum
no minimum
Built by & for
transmission pros
transmission pros
Related Guides
Diagnostic and rebuild guides for the 4R75W on Gearbox Insider:
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