0 0 1978 John Deere 6531T Engine for a John Deere 770 $4,000 USD (USED) John Deere 6531T Warranty: As-Is No Warranty Serial#: 303189RG Horsepower: - SLIGHT SCORING AND NEEDS BEARINGS ConditionUsedFits To Make(s)John DeereFits To Model(s)770Stock Number25828238 MLS Number13726470CategoryEngines Last Updated8/23/2025 LocationSpencer, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info