Overview
This 1/2-inch x 101.5-inch deck drive belt is an aftermarket replacement for OEM part numbers 197253 and 429636, commonly used on 42-inch riding lawn tractors from Poulan Pro, Craftsman, and Husqvarna. It transfers engine power to the mower deck spindles. Note that this is the longer 101.5-inch belt; earlier 42-inch Craftsman models use the shorter 95.4-inch belt (144959), so measure your old belt or check the parts diagram before ordering.
Key specifications
- Belt dimensions: 1/2 in. wide x 101.5 in. outer circumference
- Belt type: Deck drive V-Belt
- Deck size: 42 in.
- Replaces OEM part numbers: 197253, 429636, 336326B
Compatibility
Fits Poulan Pro 42-inch lawn tractors including PP155G42, PP175G42, PXT175G42, PP19A42, PP20VA42, PB195H42LT, PB20H42LT, and many other PB-series models. Also fits Craftsman 42-inch tractors LT3000, YTS3000, YT3000, YS4500, DYS4500, DLT3000, and YT4000, as well as Husqvarna YTH2042 and YTH18542 riders. Double-check your model number and production year, since belt specs can change between model years.
Installation notes
Set the parking brake, turn off the engine, and disconnect the spark plug wire. Lower the cutting deck to the lowest position and remove the belt guards. Release the idler pulley tension, then guide the old belt off the spindle pulleys and the engine output pulley. Route the new belt per the diagram in your owner’s manual or on the deck sticker, re-tension the idler, and reinstall all guards before testing blade engagement.
Common questions
Q: Will this 197253 deck belt fit my Poulan Pro PP175G42 with a 42” deck, and is it the same as Craftsman 429636?
Yes, this belt is intended for 42” deck applications on models like the Poulan Pro PP175G42 and it also replaces part numbers 197253 and 429636 used on certain compatible Craftsman tractors. It’s important to match both the deck size and the OEM belt number from your mower’s manual or old belt before installing.
Q: My old belt on a Craftsman YS4500 is stretched and keeps slipping—does this 1/2” x 101.5” belt sound like the correct deck drive belt?
If your YS4500 uses the 42” mower deck and the original belt cross-reference is 197253 or 429636, this size is the correct deck drive belt. A worn belt will often slip, squeal, or leave uneven cutting, so replacing it with the correct length and width helps the deck engage properly.
Q: Any tips for installing this belt on a Poulan Pro PP19A42 or YTH2042 without routing it wrong?
Before removing the old belt, take a clear photo of the routing around the mandrel pulleys, idlers, and engine pulley, because incorrect routing is one of the most common installation issues. After installation, check that the belt sits fully in the pulley grooves and verify the idler tensioner moves freely so the new belt tracks correctly.
