The rule of thumb is the bigger the area to measure

For Howse Clockwise (right hand) rotation Rotary Cutter Blade

Fits Caterpillar Forestry Swing Machine: 325C - Replaces OEM Number 147-4834

25 (1 1/4) in 32 mm Bearing Cap to Cap Span 3

CIH MONOSEM 1200 SERIES METER CHAIN

Compressor to Condenser Hose for John Deere RE12040 BB6X07 The rule of thumb isCompressor to Condenser Hose for John Deere RE12040 Compressor to Condenser Hose for John Deere replaces OEM numbers RE12040, RE57347. 8450, 8650. Built for reliable replacement performance, this part is a strong option for restoring proper cab comfort and equipment function. Fits John Deere Tractor: 8450, 8650 Replaces OEM Numbers RE12040, RE57347 Please verify the OEM reference number and equipment fitment before ordering.