1977-1978 L48 EGR Valve Assembly & 1977 Auto 1978 Manual Non-California
The EGR valve controls a passageway between the intake and exhaust manifolds. When the valve opens, the intake vacuum draws exhaust through the valve. This dilutes the incoming air/fuel mixture and has a quenching effect on combustion temperatures. Remember to always replace your faulty EGR valve with the model that corresponds to your year/models engine.
Direct replacement for GM part numbers:
17052742
17053034
For L48 1977 With Automatic Transmission
For L48 1978 With Manual Transmission
Also known under these part numbers: (For reference only)
- 689604121986
- EG10136
- EG10136-11B1
- EG10136L