Snow Blower
Toro Power Clear 721 E
4-Stroke
This record is scoped to the Toro Power Clear 721 E single-stage snow blower, model 38742 with serial numbers 404310000 and up, which uses a Toro 212cc four-cycle engine with electric and recoil start and a 21-inch clearing width. Toro's parts catalog 3423-725 lists the rotor drive belt, scraper blade, rotor paddles, spark plug, carburetor kit, and primer bulb shown here. Toro lists Champion RN9YC or NGK BPR6ES at a .030-inch gap. Read the model and serial decal before ordering, because Toro changes parts between serial ranges.
Toro Power Clear 721 E quick specs
- Equipment
- Snow Blower · 4-Stroke
- Covered Parts
- Spark Plug, Rotor Belt, Scraper Bar, Rotor Paddle, Carburetor, Primer Bulb
- OEM References
- 119-1901, 121-6622, 133-5585, 99-9313, 127-9008, 66-7460
- Model Family
- No family group listed
- Last Reviewed
- 2026-10-16
- Data Confidence
- OEM-confirmed
Quick Fitment
- Spark PlugOEM / Spec: 119-1901Champion RN9YCHigh confidence · Manufacturer · reviewed 2026-10-16Search Amazon →Affiliate link
- CarburetorOEM / Spec: 127-9008Toro 127-9008High confidence · Manufacturer · reviewed 2026-10-16Search Amazon →Affiliate link
- Primer BulbOEM / Spec: 66-7460Toro 66-7460High confidence · Manufacturer · reviewed 2026-10-16Search Amazon →Affiliate link
- Rotor BeltOEM / Spec: 121-6622Toro 121-6622High confidence · Manufacturer · reviewed 2026-10-16Search Amazon →Affiliate link
- Scraper BarOEM / Spec: 133-5585Toro 133-5585High confidence · Manufacturer · reviewed 2026-10-16Search Amazon →Affiliate link
- Rotor PaddleOEM / Spec: 99-9313Toro 99-9313High confidence · Manufacturer · reviewed 2026-10-16Search Amazon →Affiliate link
As an Amazon Associate, WhichPartFits earns from qualifying purchases.
Tune-Up Kit
Common service bundle: spark plug, carburetor, primer bulb.
Maintenance Interval
Inspect filters and fuel lines each season, replace spark plugs during annual service, and service carb/fuel-system parts when starting or idle symptoms appear.
Before You Buy
- Confirm the full model is Toro Power Clear 721 E, not just the family name.
- Check serial number, production date, and regional variant before ordering.
- Match the old OEM number stamped on the removed part when available.
- Compare dimensions, plug gap, thread, fuel line diameter, or chain pitch/gauge where applicable.
Common Mistakes
- Ordering from a family listing without checking the exact sub-model.
- Buying a kit that includes the headline part but wrong gaskets, lines, or bulb size.
- Choosing the wrong carburetor revision when multiple versions were used.
- Installing the correct plug number with the wrong gap.
Symptoms Map
Won't start
Spark plug, fuel filter, primer bulb, carburetor
Primer will not fill
Primer bulb, fuel line routing, in-tank filter
Throws snow weakly
Rotor paddles, rotor belt
Leaves a layer of snow
Scraper bar, skid shoe height
Replacement Options
Best OEM equivalent
Start with OEM references 119-1901, 121-6622, 133-5585, 99-9313 and match the removed part before choosing a listing.
Named part options
Cross-check named parts such as Champion RN9YC (spark plug), Toro 121-6622 (rotor belt), Toro 133-5585 (scraper bar) against the OEM number, identity label, and dimensions.
Best if replacing fuel system
Compare the carburetor, primer bulb together so line routing, bulb size, filter style, and carburetor connections match.
Best budget kit
Use kit listings only when every included part matches this model page; cheap kits often mix correct headline parts with wrong bulbs, lines, or gaskets.
FAQ
Does this fit other Toro models? Use this page for the exact Toro Power Clear 721 E unless a manual, dealer listing, or removed part confirms another model.
Should I buy OEM or aftermarket parts for the Toro Power Clear 721 E? Use OEM when the part controls fuel metering, ignition, or safety. Aftermarket kits can be useful for routine filters, bulbs, plugs, and tune-up bundles when the OEM number and dimensions match.
How do I avoid ordering the wrong carburetor for the Power Clear 721 E? Match the carburetor number stamped on the removed unit, then compare linkage, choke setup, primer routing, gasket stack, and fuel-inlet direction.
What should I check before replacing fuel-system parts? Photograph the old fuel-line routing, match line diameter and filter style, and compare primer bulb size before buying a kit.
As an Amazon Associate, WhichPartFits earns from qualifying purchases. Match the OEM number, dimensions, and model variant before buying.
Spark Plug
- Reviewed
- 2026-10-16
- Dimensions
- .030" (0.76mm) electrode gap
- Variant notes
- Toro part 119-1901 in parts catalog 3423-725 (Engine Assembly) for model 38742, serial 404310000 and up.
- Exclusions
- Do not apply this gap to another Toro model without its own specification.
Rotor Belt
- Reviewed
- 2026-10-16
- Variant notes
- Listed as Belt-Drive in the Rotor Drive Assembly of Toro parts catalog 3423-725 for model 38742, serial 404310000 and up.
- Exclusions
- Single-stage Toro belts look similar across models; confirm the number printed on the old belt or the catalog for your serial range.
Scraper Bar
- Reviewed
- 2026-10-16
- Variant notes
- Listed as Blade-Scraper in the Main Frame Assembly of Toro parts catalog 3423-725.
- Exclusions
- Toro sells other 21-inch scraper kits for different Power Clear frames; match the catalog for your model and serial.
Rotor Paddle
- Reviewed
- 2026-10-16
- Dimensions
- Quantity 2 per rotor
- Variant notes
- Blade-Rotor 99-9313 (quantity 2) in the Rotor Assembly of Toro parts catalog 3423-725; the complete rotor is kit 131-6490.
- Exclusions
- Replace both paddles together and confirm whether your rotor uses the standard or extended-wear blade.
Carburetor
- Reviewed
- 2026-10-16
- Variant notes
- Engine Assembly, Toro parts catalog 3423-725, for the 212cc engine used on model 38742, serial 404310000 and up.
- Exclusions
- Try the 127-9089 repair kit if the carburetor body is undamaged; confirm linkage and primer port before buying a complete kit.
Primer Bulb
- Reviewed
- 2026-10-16
- Variant notes
- Listed as Bulb-Primer in the fuel system section of Toro parts catalog 3423-725.
- Exclusions
- If the bulb is intact but will not fill fuel, inspect the primer line and carburetor before replacing the bulb.