K38 Compression Spring 3026926 Specs & Engine Fitment
The K38 compression spring 3026926 is an essential internal valve component engineered for high-horsepower Cummins diesel engines. This heavy-duty spring keeps oil pressure steady and prevents pressure drops while the engine is running.
Technical Specifications: Cummins Spring 3026926
| Specification Parameter | Details |
| Part Number | 3026926 |
| Part Name | Compression Spring |
| Compatible Platforms | Cummins K38, K50 Series |
| Oil Pan Compatibility | Rear Center Sump & High-Capacity (Subbase Type) |
| Filter Configuration | Left-Bank Mounted Lube Oil Filter |
| Cart | Ref No | Part Number | Part Description | Required | Remarks |
| 3031385 | Pressure Relief Valve | 1 | |||
| 1 | 3026925 | Oil transfer connection | 1 | ||
| 2 | 3026927 | Pressure Regulator Plunger | 1 | ||
| 3 | 3026926 | Compression Spring | 1 | ||
| 4 | 127316 | Plain Washer | 1 | 5/8 in. | |
| 5 | 107695 | Roll Pin | 2 | ||
| 6 | 3001719 | Straight Pin | 1 |
Application & System Compatibility
Part number 3026926 is specifically engineered for high-capacity oil pans and specialized lube system setups:
- Cummins Engine Series: K38 and K50 heavy-duty industrial and generator engines.
- Oil Pan Setup: Works with rear center sump oil pans and high-capacity (subbase type) oil pans.
- Filter Layout: Required on engine configurations with the lube oil filter mounted on the left bank.
Mechanic’s Note: When servicing the lubrication module, always inspect the compression spring for tension loss, pitting, or deformation. Using a worn spring can lead to inconsistent oil pressure regulation in high-capacity sumps.
Frequently Asked Questions
Q: Where is the K38 compression spring 3026926 used?
A: It is used in the lubrication system of Cummins K38 and K50 engines equipped with a rear center sump or high-capacity (subbase type) oil pan, where the lube oil filter is mounted on the left bank.
Fast Verification & Global Support at YIZHI POWER
Oil pan configurations and filter valve setups vary across different generator and marine specs.
Need help verifying your Cummins draincock or engine spares?
- Locate your Cummins Engine Serial Number (ESN) on the engine dataplate.
- Contact YIZHI POWER.
- We will verify exact part compatibility in the official Cummins EPC catalog 100% free of charge.
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