The Toro OEM 117 5376 03 Recycler Mower Deck Blade boasts high-quality cutting performance and exceptional durability. It features specialized "accelerator" wings that effectively push grass clippings back into the ground, resulting in a healthier lawn. This Mower Deck Blade was made to OEM Specifications to fit Toro Timcutter series with a 42" Deck. Please refer to the Model Fit Chart below to ensure the correct fit. Below are some continued references and notes for this Mower Blade. NOTE: The Toro 117-5376-03 does require Round Shaft/Blade Arbor. Refer to the image above for an accurate Comparision. Toro Recycler or Mulching blades do require the use of a recycler kit in order to function at their full capability. For other Additional references click on the Part Number Below. COMPATIBLE BLADE REFERENCES 131-3939-03 - Hi Flo Blade COMPATIBLE RECYCLER KIT 139-3265 - 42" Fabricated or Welded Reinforced Decks 137-7042 - 42" Stamped or Pressed Decks COMPATIBLE SPINDLE PART REFERENCES 139-3214 - Spindle Assembly - Timecutter series (Excluding Timecutter HD series) COMPATABLE BLADE BOLT REFERENCE - Pre 76--- and 77---Digit Model Number Timecutters (Excluding the HD series) 26-0671 - Blade Bolt - Timecutter with Model Digits 76--- and 77--- 145-0412 - Blade Bolt Specification Product Number: 115537603 Brand: Toro Length: 21.500 IN (54.610 CM) Width: 2.250 IN (5.715 CM) Height: 1.000 IN (2.540 CM) Weight: 2.181 LB (0.989 KG) Model Fit: 74721, 74760, 74720, 74723, 74784, 74787, 74785, 74765, 74722, 74766, 74725