Owner’s manual
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What is the spark plug gap on a Poulan Pro?
For the Poulan PR450N20S-96112013002 walk-behind mower, set the spark plug gap to the specification listed for your exact engine; this mower’s manual directs you to follow the engine manual’s spark plug gap setting for best starting and smooth running. See the PR450N20S-96112013002 owner's manual.
Because Poulan walk-behind mowers can be built with different engine families, we match the gap to the engine model on your mower (not just the mower model).
- Find the engine model/type code on the engine shroud or valve cover label.
- Check the engine section in the PR450N20S-96112013002 owner's manual for maintenance guidance and the reference to engine specs.
- Use a wire-style feeler gauge to measure the gap (more accurate than a flat blade gauge).
- Adjust by bending only the ground electrode; do not pry against the center electrode.
- Recheck the gap after tightening the plug.
Most 4-cycle walk-behind mower engines run one of these common gaps; your engine label and engine specs decide which one is correct.
| Engine family (common on walk-behind mowers) | Typical gap range | Notes |
|---|---|---|
| Many Briggs and Stratton 4-cycle mower engines | 0.020 to 0.030 in. | Often 0.030 in. on many models |
| Many Kohler small 4-cycle mower engines | 0.025 to 0.030 in. | Some specify 0.025 in. |
We recommend replacing the spark plug at the beginning of each mowing season or every 100 hours of operation (whichever comes first). A correct gap matters because it directly affects spark strength, starting, misfires under load, and fuel efficiency.
- Let the engine cool completely.
- Disconnect the spark plug wire before service.
- Keep the plug boot seated firmly when reinstalling.
- If the blade area must be accessed, use a proper blade-holding method; see lawn mower blade removal tool.
If you’re ordering tune-up or hardware items for this mower, you can shop the parts list for PR450N20S-96112013002 or search by model on Sears PartsDirect.
Last updated: February 2026
How much does a Poulan Pro weigh?
The weight depends on the exact Poulan Pro model. For the Poulan PR450N20S-96112013002 walk-behind mower, the most reliable place to confirm the shipped and operating weight is the specifications section in the PR450N20S-96112013002 owner's manual.
We recommend using the model-specific specs because “Poulan Pro” covers many different products (mowers, trimmers, chainsaws) with very different weights.
- Check the Specifications or Product data section in the manual
- Look for two values: assembled/operating weight and shipping weight
- If you added accessories (mulch plug, bagger, different blade), expect a small change
- If you are weighing it for transport, include fuel only if you will transport it with fuel in the tank
Most 20-inch gas walk-behind mowers like the Poulan PR450N20S-96112013002 typically weigh in this range:
| Weight type | Typical range | What it includes |
|---|---|---|
| Operating weight | 55 to 75 lb | Mower assembled, usually without a full fuel load |
| Shipping weight | 60 to 85 lb | Mower plus packaging and inserts |
Knowing the correct weight helps you choose safe ramps and tie-downs, avoid overloading a vehicle hitch carrier, and plan safe handling on slopes. The manual also notes a maximum recommended operating angle of 15°, which is easier to respect when you are not struggling to maneuver the mower.
A mower that vibrates or feels hard to control can indicate a blade or blade-mounting issue. If you are servicing the blade area, these model-compatible parts are commonly involved:
- Lawn mower blade adapter 581547901 (connects the blade to the crankshaft)
- Lawn mower bolt 596203801 (commonly used in blade mounting)
- Lawn mower nut 532409149 (locking nut used in various assemblies)
You can order replacement parts for your Poulan PR450N20S-96112013002 from the parts list for this model, or search by model number on Sears PartsDirect.
Last updated: February 2026
Who makes Poulan Pro engines?
Poulan Pro engines are made for Poulan (a Husqvarna brand family) and are typically branded as Poulan engines on the equipment. On your Poulan PR450N20S-96112013002 walk-behind mower, confirm the exact engine brand and model from the engine ID label and the PR450N20S-96112013002 owner's manual.
Use the engine identification label so you match the correct tune-up specs and engine parts.
- Look on the engine shroud, recoil starter housing, or valve cover for the engine brand name.
- Find the engine ID label (model and type code); it is often near the spark plug, muffler shield, or blower housing.
- Write down the full engine model and type code before ordering items like a spark plug or air filter.
- Clean the label with a dry rag; avoid spraying water directly on the engine.
- Use the engine model and type code when selecting carburetor, ignition, and fuel-system parts.
| Item | Where you find it | What it controls |
|---|---|---|
| Mower model number: PR450N20S-96112013002 | Mower deck tag or product label | Deck, wheels, handle, blade, and chassis parts |
| Engine model/type code | Engine ID label on the engine | Engine tune-up parts and settings (plug type, gap, air filter, carb parts) |
Poulan Pro mowers can use different engine versions across production runs. The engine model and type code is what ensures you get the right ignition and fuel parts and the correct maintenance settings.
If you are removing the blade for sharpening or deck cleaning, these model-matched parts are commonly involved:
You can order replacement parts from the parts list for PR450N20S-96112013002, or search by model number on Sears PartsDirect.
Last updated: February 2026
