Poulan PR450N20S-96112013002 lawn mower Parts

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.

How to get the correct gap for your exact engine

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.

Typical spark plug gap ranges (what most small engines use)

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.

When to replace the spark plug (and why it matters)

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.

Quick safety and service tips

• 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

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.

How to find the correct weight for your mower

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

Typical weight range (helpful benchmark)

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

Why it matters

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.

Related maintenance that affects handling

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

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.

How to identify the engine maker on your mower

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.

Quick reference: mower model vs. engine model

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)

Why it matters

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.

Common blade-area parts you may replace during service

If you are removing the blade for sharpening or deck cleaning, these model-matched parts are commonly involved:

• Blade.20.mulch.(50dk,6020md) 532145106
• Lawn mower blade adapter 581547901
• Lawn mower bolt 596203801

You can order replacement parts from the parts list for PR450N20S-96112013002, or search by model number on Sears PartsDirect.

Last updated: February 2026