Description
Fleetguard WF2126 is a non-chemical, particulate-only coolant filter sized for Cummins ISX12, ISX15, and X15 engines running OAT (NOAT/HOAT) extended-life coolant. Unlike the chemically-charged WF2125 it supersedes, the WF2126 contains no SCA tablet — correct for cooling systems that do not require DCA reinhibition. The M36 x 2 thread, 5.76 in length, and 3.77 in OD match the OE coolant-filter head on these engines exactly.
Specifications
| Manufacturer | Fleetguard (Cummins Filtration) |
|---|---|
| Part Number | WF2126 |
| Part Type | Spin-On Coolant Filter (non-chemical / particulate only) |
| SCA Charge | None — for use with OAT (NOAT/HOAT) extended-life coolants |
| Length | 5.76 in (146.3 mm) |
| Largest OD | 3.77 in (95.8 mm) |
| Gasket OD | 3.77 in |
| Gasket ID | 3.18 in |
| Thread Size | M36 x 2-6G INT |
| Engine Compatibility | Cummins ISX12, ISX15, X15 |
| Supersedes | Fleetguard WF2125 (when converting to OAT/ELC) |
Cross References
This filter replaces or is equivalent to the following part numbers:
- Cummins: 4907485, 3680315, 3680433, 3100310
- Baldwin: BW5086
- Donaldson: P550866
- Wix: 24111
- Fram: PR8693
- Carquest: 89111, 89112
- Case: 324618A1
- Ingersoll-Rand: 54662051
- SF-Filter: SW1638
- Fleetguard family: WF2125 (chemical / DCA4+ version)
Applications
This coolant filter fits the following engines:
- Cummins ISX12 / ISX12N (2010–2016)
- Cummins ISX15 (2010–2016)
- Cummins X15 (2017–current)
Representative trucks using these engines:
- Kenworth T680, T880, W900, T800, C500
- Peterbilt 579, 567, 389, 384
- Freightliner Cascadia, Coronado, 122SD, 114SD
- Western Star 4900, 5700, 49X
- International LoneStar, ProStar, LT, HX
- Mack Pinnacle CXU613 with X15 (limited)
Use the WF2126 only with OAT/extended-life coolant. If your engine is on conventional or hybrid coolant requiring SCA reinhibition, install the chemical WF2125 instead.
