O-Ring, 4L60E Cooler Line Fitting
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Part # 74378A
Type:
Seal
Transmissions:
4L60, 4L60E, 4L65E, 4L70E
Data as of:
2026-10-17
Offers
No offers for this part yet.
Cross-reference numbers
| Number | System | Status |
|---|---|---|
| 74378A | WIT | ✓ catalog |
| 1993012 | OEM | ✓ catalog |
| 77554A | DACCO | ? unverified |
Where it fits
| Diagram | Position | Transmission page |
|---|---|---|
| 4L60E | 378 | 4L60E |
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