Toro OEM 133-5590 Discharge Chute

 

This genuine Toro OEM 133-5590 Discharge Chute restores optimal snow throwing performance when your original chute shows signs of damage, deterioration, or snow leakage. As the primary conduit for directing snow discharge, this replacement component works in concert with the rotation mechanism and deflector to ensure precise snow placement. A compromised chute compromises your machine's efficiency, making this direct OEM replacement essential for maintaining peak operational capability. 

 

• OEM Part Number: 133-5590, 133 5590, 1335590
• Part Name: Chute-Discharge
• Function: Directs the Snow Stream as well as control Left-Right Rotation
• Genuine Toro OEM: Correct fit and performance on compatible Power Max® two-stage Toro snow throwers.
  

 

Supersession / Cross-Reference

 

• Replaces / Supersedes: 119-7628, 119 7628, 1197628

 

Fits These Toro Models (By Family)

Verify your model number (and serial range when applicable) from the machine tag before ordering.

 

POWER MAX Series – Model Numbers – (* Model Numbers 37770, 37771, 37772, 37775, 37777, 37779, 37780, 37781, 37793, 37797, 38810, 38811, 38813, 38815, 38816, 38817)

 

Misc. Lawn Boy Models – Model Numbers – (* Model Numbers 17740)

Associated Parts & Hardware (Grouped by Sub-Assembly)

 

1) Discharge Chute Deflector (Upper Deflector Components)

These parts are specific to the deflector (the top flap that changes throw distance/trajectory) and its linkage on the chute.

 

• 119-7629 – Deflector-Chute (Upper deflector- controls the up & down trajectory) * Select Models Only Review the Model Fit Chart under each Individual Part Numbers
• 131-5915 – Deflector-Chute (Upper deflector- controls the up & down trajectory) * Select Models Only Review the Model Fit Chart under each Individual Part Numbers
• 136-8672 – Pivot Rod-Deflector (linkage rod - Retains the Discharge Chute Deflector to the Discharge Chute - Clip-In or Non-Bolt able) * Non-Cable Models - Manuel Trajectory Adj.
• 136-7145 – Pivot Rod-Deflector (linkage rod - Retains the Discharge Chute Deflector to the Discharge Chute) * Cable Models Only
• 137-3110 or 98-1375 - Rod-Deflector Bolt (Retains the Pivot Rod to the Discharge Chute)
• 136-7143 – Spring-Torsion (deflector return/hold spring) * Cable Models Only
• 120-9299 – Chute-Cover (covers/protects linkage area on chute) * Cable Models Only
• 94-4496 or 98-1375 - Chute Cover Phillips Screw * Cable Models Only
• 117-2314 – Trigger-Deflector * Non-Cable Models - Manuel Trajectory Adj.
• 136-7136 – Spring-Compression (deflector/trigger feel & return) * Non-Cable Models - Manuel Trajectory Adj.

2) Main Discharge Chute Lower Mounting & Rotation (Base / Ring / Latch / Gear)

These parts support and mount the main chute to the housing and control left/right rotation and locking.

 

• 119-7627 – Ring-Chute (A Flanged Chute Ring/Base Ring that mounts from Inside the Snowblower Shrouds/Frame/Snowblower Auger Housing and Attaches to the Discharge Chute Via Hex Washer Head Bolt - Chute Ring give the Ability to Remain Secure as well as Rotate Left to Right)
• 46-8091 – Screw-HWH (Retains the Chute Ring to the Bottom of the Discharge Chute [Retaining the Discharge Chute to the Snowblower Unit] - as well as Making the Chute Gear Stationary to the Chute Bracket - as well as Retaining the Chute Gear Mount Bracket to the Discharge Chute)
• 120-3853 – Gear-Chute (Attaches to the Chute Bracket and Enables the Chute to Rotate)
• 136-7199 – Bolt-Shoulder (Retain the Discharge Chute Mount/Gear Cover and Discharge Chute Gear)
• 120-3856 – Washer-Flat (Assembled Between the Shoulder Bolt and the Discharge Chute Gear Mount/Cover)
• 3296-29 – Lock Nut (Retain the Discharge Chute Mount/Gear Cover and Discharge Chute Gear)
• 121-1237-03 – Bracket-Mount, Chute (Retains the Chute Gear and Chute Cover - if equipped)
  
• 136-7191 – Clamp-Cable (Secures control cables) * Cable Models Only
• 32144-10 – Screw-HWH (Secures control cable clamps) * Cable Models Only
• 120-3854 – Gear-Bevel (Connects to the Chute Control Rod and Enable the Motion from the Operators Control Stick to be Transferred to the Chute Via the Gear Meshing Between the Bevel Gear and the Chute Gear)
• 120-3855 – Bevel Gear Mount/Clamp (Retains the Bevel Gear to the Chute Gear Mount/Cover)
• 321-5 – Hex Head Bolt (Retains the Bevel Gear Mount/Clamp to the Chute Gear Mount/Cover)
• 3256-22 – Flat Washer (Assemble Between the Lock Nut and the Beveled Gear Mount Clamp)
• 3296-42 – Lock Nut (Retains the Bevel Gear Mount/Clamp to the Chute Gear Mount/Cover)
• 120-3855 – Mount-Gear, Bevel (bevel gear mount)
• 120-3869 – Latch-Chute (Chute lock/latch is Operated by the Operator's Control Joist Stick Via a Button/Latch and a Latch Control Cable - Enables and Disenables the Chute to Rotate upon the Operators Selection)
• 120-7150 – Chute Latch Spring (Returns Latch to Activate Position (Dis-Enabling the Chute Rotation) when the Button on the Operator Control Joystick is Not Engaged.
• 120-3852 – Discharge Chute Mount or Discharge Chute Gear Cover (Mounts over The Discharge Chute Gear, Beveled Gear and Latch Components and Retains the Bevel Gear) *Must Assemble with Some of the Gear Fasteners
• 321-11 – Hex Head Bolt (Retains the Discharge Chute Gear Mount/Cover to directly to the Chute Bracket Assembly - Two Outer Bolts)
• 3296-42 – Lock Nut (Retains the Discharge Chute Gear Mount/Cover to directly to the Chute Bracket Assembly - Two Outer Nuts)

 

*Note: The groupings above are pulled from Toro’s chute assembly breakdown for this chute family; hardware quantities can vary slightly by model/serial range, so match to your unit’s parts diagram when ordering or to the Listed Parts Model Fit Chart.

Installation Directions 

(Main Discharge Chute 133-5590 + Upper Deflector Procedure Style)

 

Hilly Ridge Sales & Service tech tip: Take 2–3 quick photos of the discharge chute rotation gear & bracket components, latch components, deflector linkage & control cable routing before you take anything apart. It makes reassembly faster and prevents confusion.

Safety / Prep

 

• Park on a flat surface. Shut engine off, remove key, and disconnect the spark plug wire.
• Let all moving parts stop completely. Wear gloves—sharp edges and packed ice can cut.
• Clean packed snow/ice from the chute base, ring, and gear area before disassembly.
• Take a visual Documentation of Parts (a quick phone photo helps).

 

A) Remove the Existing Chute Assembly

 

• Rotate the chute to a centered position so the gear mesh is easy to re-align later.
• Remove the chute cover (if equipped) to access the rotation gear/drive components.
• Disconnect the chute latch spring/lock mechanism and Deflector Control Cable (if applicable) so the chute can lift off cleanly.
• Remove the chute mounting fasteners evenly around the ring/base. Keep hardware grouped for re-use if it’s in good shape.
• Lift the chute off the ring/base. If it’s stuck, gently rock it—don’t pry hard on plastic components.

 

B) Transfer / Install the Upper Discharge Chute Deflector (131-5915-Style Steps Integrated)

* If your deflector (upper flap) and linkage are being reused, transfer them to the new chute now. If you are replacing the deflector components, install them onto the new chute before mounting the chute to the unit.

 

• Remove the deflector pivot hardware (Commonly a Torsion Spring & Pivot Pin - May Be a Clip-in Place or Retained with a Bolt Depending on Model) and lift the deflector off the chute.
  
• Inspect the pivot holes and the deflector edges. Replace any cracked, egg-shaped, or worn components to prevent slop and binding.
• Install the deflector onto the new chute and start the pivot fastener by hand.
• Reinstall the torsion/return spring in the same orientation as removed (spring legs seated correctly so the deflector returns and holds position).
• Reconnect the deflector pivot rod/linkage. Make sure it moves smoothly through full up/down travel without rubbing.
  
• Do not overtighten pivot hardware—tighten only until the deflector moves freely without side-to-side wobble.

 

NOTE: For Personalized Direction for Each Individual Discharge Chute Deflector Type Refer to Disassembly and Assembly Direction associated to each individual Discharge Chute Part Numbers 119-7629 & 131-5915.

 

C) Install the New Main Discharge Chute (133-5590) to the Lower Ring / Base

 

• Inspect the chute ring/base and clean debris from the mating surfaces.
• Set the new chute onto the ring/base, ensuring it seats fully and evenly all the way around.
• Install mounting fasteners finger-tight first, then snug them gradually in a crisscross pattern (even clamping helps prevent distortion and stiff rotation).
• Reinstall the chute rotation gear components and confirm proper gear mesh (no skipping teeth, no excessive tight spots).
• Reconnect the chute latch mechanism and spring (if equipped). Verify the latch locks and releases positively.

 

D) Final Checks & Adjustments

 

• Rotate the chute fully left and fully right. It should turn smoothly without binding.
• Run the deflector fully up and fully down. Confirm the rod/linkage does not bind and the deflector holds its position.
• If rotation is stiff: loosen chute mounting fasteners slightly, re-center the chute on the ring, and retighten evenly.
• Reconnect the spark plug wire and do a quick functional test at idle speed only.

 

Hilly Ridge Sales & Service tech tip: If the old chute failed from impact, also inspect the ring, gear teeth, latch, and mounting brackets for hidden cracks or bends—those issues can cause premature failure or hard chute rotation.