Cummins K19 K38 K50 valve guide (valve stem guide) is an important precision cylinder‑head component for heavy‑duty K‑series diesel engines. It keeps intake and exhaust valves in perfect vertical alignment, controls valve‑stem clearance, reduces friction under extreme high‑temperature conditions, prevents valve sticking, oil consumption and cylinder‑head premature wear.
| CUMMINS | 174213 | VALVE GUIDE | |
| CUMMINS | 3021693 | VALVE GUIDE | |
| CUMMINS | 3033314 | VALVE GUIDE | L10 |
| CUMMINS | 3201311 | VALVE GUIDE | |
| CUMMINS | 3202210 | VALVE GUIDE | |
| CUMMINS | 3050369 | VALVE GUIDE | |
| CUMMINS | 3064312 | VALVE GUIDE | |
| CUMMINS | 3072321 | VALVE GUIDE | |
| CUMMINS | 3074118 | VALVE GUIDE | |
| CUMMINS | 4429408 | VALVE GUIDE | |
| CUMMINS | 4429409 | VALVE GUIDE | |
| CUMMINS | 3073512 | VALVE GUIDE | |
| CUMMINS | 4429206 | VALVE GUIDE | |
| CUMMINS | 3278173 | VALVE GUIDE | |
| CUMMINS | 4026657 | VALVE GUIDE | |
| CUMMINS | 3090372 | VALVE GUIDE | |
| CUMMINS | 3170135 | VALVE GUIDE | |
| CUMMINS | 3680867 | VALVE GUIDE | QSK15 |
