The Husqvarna HU 725 AWD is a 24-inch, all-wheel drive, self-propelled walk-behind lawn mower featuring a powerful Briggs & Stratton engine, 3-in-1 cutting system (mulch, bag, side discharge), 7-position cutting height adjustment, electric start, and a durable steel deck. This parts manual provides detailed diagrams, part numbers, and ordering information for maintenance and repair. Below are key sections for identification, engine parts, deck assembly, drive system, controls, and troubleshooting.
Locate the model and serial number plate on the rear of the mower deck or engine housing for accurate parts identification.
| Feature | Description |
|---|---|
| Model | HU 725 AWD |
| Engine | Briggs & Stratton 190cc, OHV |
| Cutting Width | 24 inches |
| Drive System | All-Wheel Drive (AWD), Self-Propelled |
| Cutting Height | 1.5 to 4 inches (7 positions) |
| Cutting System | 3-in-1 (Mulch, Bag, Side Discharge) |
| Starting System | Electric Start (Key) & Recoil Backup |
| Deck Material | Reinforced Steel |
| Fuel Tank Capacity | Approx. 1.9 quarts |
| Oil Capacity | 20 oz. (SAE 30 or 10W-30) |
Always disconnect the spark plug wire before performing any maintenance or parts replacement.
WARNING! Failure to follow safety instructions can result in serious injury or death. Always refer to the original operator's manual for complete safety information.
Briggs & Stratton 190cc Engine (Model Series 120000). Common replacement parts include air filter, spark plug, oil filter (if equipped), carburetor kit, and recoil starter assembly.
| Part Description | Part Number | Qty |
|---|---|---|
| Air Filter Element | Husqvarna 532 19 08-02 | 1 |
| Spark Plug (RC12YC) | Husqvarna 532 19 04-01 | 1 |
| Oil Filter (Cartridge) | Briggs & Stratton 492932S | 1 |
| Carburetor Repair Kit | Husqvarna 532 19 75-01 | 1 |
| Recoil Starter Assembly | Husqvarna 532 14 21-05 | 1 |
| Fuel Cap | Husqvarna 532 16 19-01 | 1 |
Note: Engine part numbers may vary by specific engine sub-model. Always verify with your engine's model number.
The 24-inch steel deck houses the blade, blade adapter, and baffles. The mulching kit and bagging attachment are optional accessories.
CAUTION! Always use a torque wrench to tighten the blade bolt to the manufacturer's specification (typically 450-600 in-lbs). An unbalanced blade can cause severe vibration.
The AWD system includes front and rear axle assemblies, drive belts, and transmission pulleys.
Tip: If the mower loses drive power, first check the drive belt for wear, damage, or improper routing before replacing transmission components.
The handle features control levers for drive engagement, blade engagement (PTO), and height adjustment.
| Component | Part Number |
|---|---|
| Upper Handle Assembly | 532 19 95-04 |
| Drive Control Lever | 532 19 96-05 |
| Blade Engagement Cable (PTO) | 532 19 97-06 |
| Key Switch (Electric Start) | 532 19 98-07 |
| Handle Knob/Grip (Set of 2) | 532 19 99-08 |
All four wheels are connected to the height adjustment lever via a linkage system.
For models with electric start. Includes battery, wiring harness, solenoid, and starter motor.
Note: Keep battery terminals clean and tight. Charge battery periodically during off-season storage.
Regular maintenance ensures optimal performance and longevity.
| Interval | Task | Related Parts |
|---|---|---|
| Every 25 hours/Season | Change engine oil | Oil (SAE 30), Drain Plug Washer |
| Every 25 hours/Season | Replace air filter | Air Filter Element |
| Every 50 hours | Replace spark plug | Spark Plug (RC12YC) |
| Every 100 hours | Replace fuel filter | In-line Fuel Filter |
| As Needed | Sharpen/replace blade | Mower Blade, Blade Bolt |
| Seasonally | Check drive belts | Deck Belt, Traction Belt |
To ensure correct fit, always order parts using your specific model and serial number.
Tip: Take a picture of the part or bring the old part to your dealer for easier identification.
| Symptom | Possible Cause | Corrective Action / Part to Check |
|---|---|---|
| Engine won't start | Empty fuel tank, bad spark plug, stale fuel | Add fresh fuel. Replace spark plug (532 19 04-01). |
| Loss of power/drive | Worn drive belt, loose cable | Inspect/replace Drive Belt (532 13 87-31). Adjust Drive Control Cable. |
| Uneven cutting | Dull/bent blade, uneven tire pressure | Sharpen/balance or replace Blade (532 40 11-25). Inflate tires evenly. |
| Excessive vibration | Unbalanced blade, loose blade bolt, debris | Stop engine immediately. Check Blade Adapter/Bolt (532 40 10-13). Clean deck. |
| Electric start not working | Dead battery, faulty solenoid | Charge/replace Battery (532 18 01-21). Test/replace Solenoid (532 18 03-23). |
| Grass not discharging | Clogged deck, wet grass, dull blade | Clean deck. Use side discharge for wet grass. Sharpen blade. |
For Technical Support: 1-800-487-5962 | www.husqvarna.com/us/support