Overview
The ZF 1297.240.005 OIL FILTER is a critical component engineered to maintain hydraulic fluid cleanliness within heavy-duty automatic transmissions. Positioned directly on the transmission valve body or remote filter head, this OEM genuine part captures particulate contaminants before they can circulate through precision-machined clutch packs and torque converters. As a primary defense against abrasive wear, the SKU 1297.240.005 ensures consistent oil pressure and thermal stability under extreme loads. Using a non-genuine substitute risks bypass valve failure or media collapse, which directly compromises transmission longevity in construction machinery applications.
Symptoms of Failure
When the 1297.240.005 becomes clogged or structurally compromised, operators will notice distinct operational degradation. Watch for these specific failure indicators:
- Delayed gear engagement under load: A restricted filter reduces hydraulic flow, causing a 2–4 second lag when shifting from neutral to drive on inclines.
- Intermittent transmission overheating: Contaminated oil loses its ability to dissipate heat, triggering dashboard warning lights after 20–30 minutes of operation.
- Whining or surging pump noise: Cavitation occurs as the filter starves the oil pump, producing a high-pitched sound that fluctuates with RPM changes.
- Visible metallic debris in fluid: If the filter media ruptures, fine metal particles appear on the dipstick or drain plug, indicating internal component damage.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | 1297.240.005 |
| Filtration Micron Rating | 25 µm nominal (beta ratio ≥ 75) |
| Outer Diameter | 93 mm |
| Overall Height | 145 mm |
| Thread Size | M22 x 1.5 |
| Bypass Valve Setting | 2.5 bar (36 psi) |
| Filter Media Material | Resin-impregnated cellulose with wire mesh support |
| Dry Weight | 0.42 kg |
| OEM Reference | ZF 1297.240.005 (genuine) |
Compatibility
This oil filter is designed for ZF power shift transmissions commonly used in wheel loaders, dozers, and excavators. Verified compatible models include:
- ZF WG180 series (all variants)
- ZF WG200 series (including WG200-3 and WG200-5)
- ZF 4WG-200 and 4WG-210 torque converter transmissions
- ZF 6WG-250 heavy-duty planetary transmissions
Always cross-reference your transmission serial number with the 1297.240.005 part number before installation. For models outside this list, consult your OEM service manual or a ZF authorized distributor.
