13323AA051 Subaru SPKT AY-CMS,EXH LH, Price: 168.95$, Weight: 1.454kg
| Make | Number | Name | Availability | Weight, kg | Ship in, Days | Price |
|---|---|---|---|---|---|---|
Subaru |
13323AA051 |
SPKT AY-CMS,EXH LH |
0 |
1.454 |
|
168.95$ |
| Not Available | ||||||
Originals
| Make | Number | Name | Availability | Weight, kg | Processing, days | Price | |
|---|---|---|---|---|---|---|---|
| Subaru |
SPKT AY-CMS,EXH LH
|
0 |
1.672
|
-
|
140.79$
|
Not Available |
Substitutions
| Make | Number | Name | Availability | Weight, kg | Processing, days | Price | |
|---|---|---|---|---|---|---|---|
| Subaru |
13323AA050
|
SPKT AY-CMS,EXH LH
|
0 |
1.672
|
-
|
140.79$
|
Not Available |
Left Exhaust Camshaft Sprocket Assembly ⚙️
This component is a key timing-drive gear on the left cylinder head. It is needed to keep the exhaust camshaft perfectly synchronized with the crankshaft, so the valves open and close at the right moment. Correct timing helps maintain smooth idle, strong acceleration, clean emissions, and stable fuel economy ✅.
How It Works ?
The sprocket meshes with the timing chain/belt system and transfers rotation to the exhaust camshaft. Its precisely machined teeth and mounting face keep cam timing accurate under load. On some Subaru boxer engines, even a tiny timing shift can be felt immediately as rough running or hesitation.
When It’s Worn or Broken ⚠️
A damaged sprocket can cause timing to drift or jump, leading to misfires, poor power, hard starting, engine rattles, and a check-engine light. In severe cases, incorrect valve timing may result in internal engine damage. Replacing it restores proper valve control and protects the timing system.
Compatible Models ?
- Impreza
- Xv