Solid Steel & Seamless: Machined from a single billet of steel for maximum strength and seamless design, reducing belt wear BIGBearing & Rebuildable: Features an oversized BIGBearing for greater durability and performance in demanding conditions—no need for full replacements. Snap-Ring design allows for easy bearing replacement Fits Hustler Z Super Z ATZ Diesel Z FasTrak SD ATZ XR-7 Sport Z4 Mini Z Super Mini Z Super S CAT Diesel LC Trimstar X-1052 X-ONE X-ONEi BDMT BDR Fits Lazer Z Metro Phazer ProLine Quest Turf Ranger Turf Tracer Vantage Viking Walk-Behind 40" 48" 52" Fits Z Master 2000 3000 5000 & 6000 Series, G3 Z147 Z148 Z149 Z150 Z153 Z300 ZZ334 Z340, ZTrak Z-Trak Series Z710A Z720A Z910A Z920A Z925A Z930A Z950A Z960A Z970A HD BIGBearing Billet Idler Pulleys are machined from a single piece of solid steel and use a Larger Replaceable Pulley Bearing. Seamless Billet Pulleys provide superior durability, precision, and increased belt life. We use a larger bearing to increase life; and our billet pulley design makes it possible to replace the bearing if it fails. Designed specifically for heavy-duty applications, these pulleys offer the absolute best replacement option. - Fits Lazer Z Models: LHP4418KC LHP4818KC SN160000-319999, LHP4417KA SN160000-509999, LHP4819KA SN190000-599999, LHP4821KA SN220000-509999, LHP4419KA LHP4820KC LHP5220KC LHP5223KA LHP5223KC SN220000-599999, LHP4420KC SN320000-509999, LCT4418KC LCT4818KC SN370000-509999, LCT4819KA LCT5219KA SN440000-509999, LCT4418BV LCT4818BV LCT5218BV LHP4823KA SN510000-599999, LHP20KC505 SN600000-669999, LHP19KA505 SN600000-719999, LCT21BV523 LCT23BV603 LHP19KA465 LHP23KA505 LHP23KA565 LHP27KC505 LHP27KC565 SN600000-789999, LHP23KA465 SN670000-789999, LCT23BV523 LHP19KA465CA LHP23KC523 LHP27KC523 SN720000-789999, LZA27KC604 LZAS27KC604CA SN820000-919999, LZZ34KC606 LZZ34KC726 LZZ38KC606 LZZ38KC726 SN850000-919999, LZA20KAS484 LZA20KAX484 LZA20KAX524 LZAS22KA484 LZAS22KA484CA LZAS23KC524 LZAS25KC604 LZAS26LKA604 LZAS27KC524 LZAS27KC524CA LZAS27KC604 LZAS29KA724 LZZ23KC486 LZZ23KC526 LZZ24KA526 LZZ24KA526CA LZZ27KC526 LZZ27KC526CA LZZ27KC606 LZZ27KC606CA LZZ29KA606 LZZ29KCE606 LZZ34KA606 LZZ34KA726 SN850000-919999, LZE20KA484 LZE22KA484 LZE24KA524 LZS22KA484 LZS22KA484CA LZS23KC524 LZS24KA524CA LZS27KC524 LZX23KC486 LZX24KA526 LZX24KA526CA LZX27KC526 LZX27KC526CA SN920000-999999 - Fits Exmark Metro Models: MHP3615KC MHP4816BV MHP5216BV 150000-189999, MHP3614KA MHP4814KA 150000-219999, MHP4815KC MHP5217KA 150000-259999, MHP4817KA 150000-319999, MHP3615KA MHP4815KA 190000-319999, M3211B M4815KA M4817KA 220000-259999, M3613KC 220000-319999, M3615KA 220000-509999, M3213KA M3613KA M4815KAC M4815KCC MHP3615KAC 220000-599999, M4815KC 260000-439999, M3615KC 320000-439999, M3613KAC M3615KCC MHP4815KAC 320000-599999, M15KA322P M15KA362 M15KA362P M15KA483 M15KA483P 600000-719999 - Fits Exmark Phazer Models: PHZ19KA443 600000-669999, PHZ19KA343 600000-919999, PHZ19KA343CA 790000-919999, - Fits Exmark Quest Models: QZX735GKC48300 413950474-416150474, Turf Ranger TR-18KC TR-20BV TR-22KC 115000-129999 TR22KC 130000-219999, TR23KC 220000-599999, - Fits Exmark Turf Tracer Models: TTH-18KC TTH-22KC 115000-129999, TT18KC TT3615KC TT4816BV TT5216BV 130000-169999 TT22KC TT3614KA TT4814KA 130000-219999 TT4815KC 130000-319999, TT4817KA TT5217KA 160000-369999, TT19KA 190000-219999, TT23KC TT4815KA TT4817KAE 220000-319999, TT3615KA 220000-369999 Turf Tracer TT23KA 260000-319999, TT4817KAEC TT5217KAC TT5217KAEC 260000-509999, TT3615KAC TT4817KAC 260000-599999, TTS481KA363 TTS481KA363CA TTS481KA483 TTS541KA483CA TTS541KA523 TTS600KAE483 TTS600KAE523 TTS600PKAE483 Turf Tracer 312000000-314999999, TTX691KAE604CA 313000000-313999999, TTS680PKCE483 TTX650EKCE524 TTX650EKCE604 TTX650EKCE604N TTX680PKCE524 TTX680PKCE604 TTX691KAE524 TTX691KAE604 313000000-314999999, TT20KCC TT23KCC 320000-539999, TT23KAC 320000-599999, TT20KC 440000-509999, TT4819KAC TT4819KAEC TT5219KAC TT5219KAEC 510000-599999, THP15KA363 THP17KA483 THP17KA523 THP19KAE483 THP19KAE523 600000-849999, THP17KA363CA THP17KA483CA THP17KA523CA THP19KAE483CA 790000-849999, THP16KA363 THP16KA363CA THP16KA483 THP16KA483CA THP18KA523 THP20KAE483 THP20KAE483CA THP20KAE523 850000-919999, TTS16KA363 TTS16KA363CA TTS16KA483 TTS16KA483CA TTS18KA523 TTS20KAE483 TTS20KAE483CA TTS20KAE523 TTS20PKAE483 TTS20PKAE523 920000-999999 - Fits Exmark Vantage Models: VT20KAS484 VT20KAS524 VT24KAS484 VT24KAS484CA VT24KAS524 VT24KAS524CA 850000-919999, VT20KA484 VT24KA484 VT24KA484CA 920000-999999, Viking VH3615KA VH4815KA 220000-319999, VH3215KCC 320000-439999, VH3615KAC VH4815KAC 320000-599999, VH3215KAC 440000-509999, VH5217KAC 440000-599999, VH15KA362 VH15KA483 600000-719999 - Also fits, Z Master: 2000 Series 74141 74141TE 3000 Series 74952 5000 Series 74901 6000 Series 74922 78922 74902TE 74941CP SN312000001-312999999, G3 74921 290000001-290999999, 74901 74941CP 290000001-311999999, 74922 78922 310000001-311999999, 74951 74952 74901CP 74902TE