Parts for PPR20H42STC — Poulan
We found 102 parts confirmed to fit the Poulan PPR20H42STC.
Same parts list as 917279900 (Craftsman). PPR20H42STC shares an identical confirmed parts list with 917279900 (Craftsman). That page is the canonical version of this parts list — use it if you want the primary reference, or stay here since the list below is exactly the same for PPR20H42STC.
Compatibility table
Prices shown are an informational reference range only, not an offer or an Amazon price — RepairKitHub does not sell parts directly. Each part links to an Amazon search so you can compare current listings yourself.
Common failure areas on this model
The confirmed parts above group into a handful of failure areas. Here is what each points to and how to check it before you order anything.
General hardware and mounting parts
Symptom: A small mechanical or mounting part has failed, cracked, or gone missing.
Check: Compare the physical shape and mounting points to the original piece, and confirm the exact part number against your model plate before ordering.
Parts in this group on PPR20H42STC: 172740 (Fender Decal), 179716X428 (Lawn Tractor Foot Rest, Left), 169210 (Drawbar Decal), 179717X428 (Foot Rest, Right), 176554 (Husqvarna Lawn Tractor Drawbar), 169613 (Husqvarna Tower Lawn Tractor Bushing), 532174503 (INSERT, LENS), 583722301 (Kit.fender.l), 145996 (Lawn Tractor Choke Control), 74490544 (Lawn Tractor Hex Flange Bolt, 5/16-in), 155272 (Lawn Tractor Hood Bumper), 434017 (Lawn Tractor Muffler Guard), 170455 (Lawn Tractor Tire, Front), 165619 (Shift Rod), 17060624 (Tower Lawn Tractor Bolt), 73540500 (Tower Lawn Tractor Lock Nut), 169182 (Tower Lawn Tractor Torque Strap), 154407 (Yard Pro Lawn Tractor Clutch Bell Crank), 157032 (Fender Decal), 169675 (Husqvarna Lawn and Garden Equipment Pin), 165596 (Lawn Tractor Cross Shaft), 170456 (Lawn Tractor Tire, Rear), 583038701 (Sealant), 157140 (Switch), 17000616 (Tower Lawn & Garden Equipment Head Bolt), 175578 (Tower Lawn Tractor Brake Rod), 873540500 (Tower Lawn Tractor Lock Nut), 140401 (Husqvarna Lawn Tractor Ignition Key), 175456 (Husqvarna Tower Lawn Tractor Bell Crank Keeper), 532169675 (Lawn & Garden Equipment Pin), 579841401 (Lawn Tractor Chassis), 73540400 (Lawn Tractor Crownlock Nut), 155098 (Lawn Tractor Height Indicator), 173966 (Rally Lawn Tractor Flat Washer), 532175578 (Tower Lawn Tractor Brake Rod), 531167801 (Tower Lawn Tractor Steering Sector Gear and Plate Assembly), 532176554 (Tower Lawn Tractor Drawbar), 532175566 (IGNITION SWITCH).
Storage, trim and cosmetic hardware
Symptom: A cracked shelf, broken door bin, worn hinge, or missing trim piece -- cosmetic and storage wear rather than a functional breakdown.
Check: Match the physical dimensions and mounting tabs of the old part before ordering; these pieces are often model-specific even between visually similar models.
Parts in this group on PPR20H42STC: 177563 (Lawn Tractor Deflector Shield Bracket), 539110472 (Deflector Bracket), 140845 (Frigidaire Lawn Tractor Shift Rod Knob), 583021501 (Husqvarna Lawn Tractor Transaxle), 532165890 (Lawn Tractor Blade Brake Arm Spring), 169592 (Lawn Tractor Transaxle Bracket), 532171598 (Knob.rd. 3/8), 175710 (Lawn Tractor Deck Pivot Bracket), 581881001 (Lawn Tractor Engine Exhaust Tube, Right), 166369 (Frigidaire Lawn Tractor Seat Adjuster Knob), 17670608 (Lawn Tractor Panel Screw).
Drive system (belts, pulleys, motors)
Symptom: A drum or tub that won't turn, a burning-rubber smell, or a loud thump or squeal during a cycle.
Check: With power off, turn the drum or tub by hand -- resistance or grinding points to the motor or a bearing, and a cracked, glazed, or snapped belt is visible once the cabinet is open.
Parts in this group on PPR20H42STC: 173437 (Husqvarna Lawn Tractor Blade Idler Pulley), 179126 (Lawn Tractor Deck Roller Rod), 169691 (Tower Lawn Tractor Belt Keeper, Center), 583043801 (Lawn Mower Belt Keeper), 175556 (Tower Lawn Tractor Belt Keeper), 157109 (Weed Eater Lawn Tractor Blade Idler Pulley Bracket), 180533 (Lawn Tractor Deck Roller Bracket, Right Front), 532173437 (Lawn Tractor Blade Idler Pulley), 532175410 (Companion Lawn Tractor Engine Pulley), 532174284 (ROLLER ASM CAM FOLLOWER).
Door and drum seals
Symptom: A door or drum seal that has lost its grip, letting water or conditioned air escape past it.
Check: Inspect the seal for tears, flattening, or gaps, and check it against your model's part number before ordering.
Parts in this group on PPR20H42STC: 273485 (Husqvarna Lawn Tractor Engine Exhaust Manifold Gasket).
Before you buy
Match PPR20H42STC exactly against the model and serial plate on the appliance itself before ordering anything — a single mismatched character can point to a different production run with different parts. Then check the part number printed or stamped on the part you are replacing against the part numbers in the table above; the printed number is the most reliable way to confirm fitment when a model has gone through multiple production runs. RepairKitHub does not sell parts directly — every part link above routes to an Amazon search for that part number so you can compare current listings and sellers yourself.
How to confirm this is your model
Check inside a door opening, on a back or side panel, or behind a removable panel or drawer for a label printed with the model and serial number. Match every character exactly, including letters and dashes at the end — appliance model numbers often have similar prefixes but different suffixes for different production runs.
Other models with this exact parts list
Each model below is confirmed to share the identical compatible-parts list with this one.
Still not sure?
Use the model lookup tool to search by model or part number, or start from the symptom your appliance is showing.