Fits John Deere z300 and z400 series zero-turn lawn mowers: z300 series: z335m, z345m, z345r, z355r, z375r Heavy duty pvc cover Poly-foam cushion Water resistant Replaces part number: 1550-00bk, 15500-bk, 155000-bk, 155000bk, 15500bk, am140435 One New Aftermarket Replacement High-Back Steel Pan SeatFits John Deere Z300 and Z400 Series Zero-Turn Lawn Mowers:Z300 Series: Z335M, Z345M, Z345R, Z355R, Z375R Z400 Series: Z445 (Before Serial Number (BSN) 100,000)Tech Info:Heavy Duty PVC CoverPoly-Foam CushionWater ResistantBlack High-Back Seat (with inner Steel Pan sealed in Cushion & Covering)Bolt Pattern:6” x 5”7.5” x 7”8.2” x 2.125”8.2” x 2.925”8.2” x 2.95”8.2” x 3.75”8.2” x 4.2”8.2” x 5”8.2” x 5.875”8.2” x 7.125”Replaces Part Number: 1550-00BK, 15500-BK, 155000-BK, 155000BK, 15500BK, AM140435