Description
Fleetguard WF2127 spin-on coolant filter for Cummins ISX and X15 engines running OAT (organic acid technology) extended-life coolant. Non-chemical design — no supplemental coolant additives (DCAs) released — so it traps debris and corrosion particles without disturbing the OAT chemistry. Replaces Cummins OEM 3680434.
Specifications
| Manufacturer | Fleetguard (OEM Cummins Filtration) |
|---|---|
| Part Number | WF2127 |
| Part Type | Non-Chemical Spin-On Coolant Filter |
| Engine Compatibility | Cummins ISX, X15 (OAT coolant systems) |
| Height | 146.3 mm (5.76″) |
| Outer Diameter | 93.73 mm (3.69″) |
| Thread Size | M36 × 2-6G |
| Coolant Type | Use with OAT only — no DCA |
Cross References
This filter replaces or is equivalent to the following part numbers:
- Cummins: 3680434
- Baldwin: B5087
- Donaldson: P550867
- Fram: PR8694
- Wix: 24113
Applications
This coolant filter fits the following engines:
- Cummins ISX 15L (1993-2010 with OAT coolant)
- Cummins ISX15 / X15 (2010-2021)
Representative vehicles using these engines:
- Kenworth T660, T680, T800, T880, W900
- Peterbilt 386, 389, 567, 579
- Freightliner Cascadia, Coronado, Columbia (with Cummins ISX)
- International ProStar (with Cummins ISX)
Verify your coolant type before ordering. WF2127 is for OAT (extended-life) coolant systems only — chemically charged DCA filters such as WF2071/WF2072 are required for conventional fully-formulated coolant.
