Product Introduction 3410040-T37H1 Power Steering Reservoir Filter is an internal filtration component installed inside the hydraulic steering oil tank of DFL KL truck. It traps tiny metal particles, sludge and debris suspended in steering fluid before oil circulates into steering pump and steering gear. This aftermarket replacement filter resolves sluggish steering response, abnormal pump humming noise and premature internal wear triggered by blocked filter media and contaminated steering fluid, protecting expensive steering power components and extending fluid service cycle for long-distance intercity freight vehicles.
Product Advantages Fine mesh filter media achieves reliable impurity interception while maintaining proper oil flow rate. Reinforced support frame prevents deformation under cyclic hydraulic fluctuation. Oil-resistant filter material stays stable under high working temperature. Each filter undergoes flow resistance inspection before shipment, compact size for direct tank installation and simplifies routine steering system maintenance.
| Item | Parameter |
|---|---|
| Part Number | 3410040-T37H1 |
| Product Name | Power Steering Reservoir Filter |
| Compatible Model | DFL KL Truck |
| Material | Oil-resistant Filter Mesh + Plastic Frame |
| Feature | Steering Fluid Filtration, Protect Pump & Steering Gear |
| MOQ | Negotiable |
| Application | Hydraulic Power Steering Oil Reservoir |
Applicable Models Fit for DFL KL series heavy-duty trucks, widely deployed on highway logistics vehicles with hydraulic power steering system.



FAQ
Q1: How can dirty steering oil damage the steering gear assembly?
A1: Hard abrasive particles scrape valve spool surfaces and lead to internal leakage and assist failure.
Q2: Should I replace steering fluid together with this filter?
A2: It is highly recommended to drain old fluid completely when fitting the new filter element.
Q3: What symptom suggests this reservoir filter is clogged?
A3: Noticeable heavy steering at low speed and strange buzzing sound from steering pump.