Maintaining proper fluid management on heavy-duty Cummins diesel engines and power generation sets requires zero-leak drain valves. The K38 draincock 3629497 is a precision-machined drain valve designed for high-vibration applications across Cummins K38, K50, and C Series platforms.
Below are the exact technical dimensions, thread specifications, and engine application cross-references for OEM part number 3629497.
Technical Specifications: Cummins K38 Draincock 3629497
| Specification Parameter | Metric / Imperial Value |
|---|---|
| Part Number | 3629497 |
| Component Name | Draincock / Drain Valve |
| Engine Interface Thread | 1/4 in. NPTF |
| Centerline of Engine to OEM Interface | -76 mm |
| Applicable Platforms | Cummins K38, K50, C Series |
Engine Fitment & Application Cross Reference
Part number 3629497 is commonly specified on high-horsepower generator sets and heavy industrial diesel units:
- Cummins K38 Series: KTA38-G7, K38 industrial and marine builds.
- Cummins K50 Series: KTA50-G7 generator sets.
- Cummins C Series: C8.3, ISC, and C-series industrial power units.
Mechanic’s Note (Installation Tip): The 1/4 in. NPTF (National Pipe Taper Fuel) thread relies on a mechanical seal created by mating threads. Avoid over-tightening into cast iron blocks or oil pan ports to prevent thread shearing. Always clean the port sealing face of old thread sealant before threading in a new 3629497 draincock.
Frequently Asked Questions
Q: What is the thread size for Cummins draincock 3629497?
A: The engine interface features a 1/4 in. NPTF tapered pipe thread designed for leak-free fluid drainage in fuel, coolant, or oil channels.
Q: Which Cummins generator models use draincock 3629497?
A: It is widely used on Cummins KTA38-G7 and KTA50-G7 diesel generator engines, as well as select C Series industrial platforms.
Verify Parts & Order Support at YIZHI POWER
Due to variations in oil pan sumps, radiator plumbing, and auxiliary fluid drain setups on large-displacement Cummins engines, verifying your part number with your Engine Serial Number (ESN) prevents ordering mismatched thread sizes.
Need help verifying your Cummins draincock or engine spares?
- Locate your Cummins Engine Serial Number (ESN) on the engine dataplate.
- Contact YIZHI POWER.
- Our technical team will verify exact fitment against official Cummins EPC catalogs 100% free of charge.
Contact YIZHI POWER for pricing, genuine filtration, Cummins engine spare parts, and fast global shipping.
