Belt Tensioner Compatible With 2004-2012 Massey Ferguson 5465/5475/6465/6475 1104D-E44t 4.4L Diesel

MASSEY FERGUSON TRACTORS:
• Massey Ferguson 5465/5475/6465/6475/6480 1104D-E44T 4.4L Diesel (2004-2012)
• Massey Ferguson 7465/7475/7480 1106D-E66TA 6.6L Diesel (2004-2012)

PERKINS INDUSTRIAL ENGINES:
• Perkins 1104D-E44T/1104D-44T/1106D-E66TA/1206E-E66TA 1100D/1200 Series 4.4/6.6L Diesel (2004-2020)


IMPORTANT:
Belt tensioner for Perkins 1100D and 1200 series engines — specifically 1104D-E44T (4.4L) and 1106D-E66TA (6.6L). These engines are the Perkins-branded versions of Cat C4.4 and C6.6. The Cat equivalent tensioner is 377-9082 (also listed as 2610406). If your equipment has a Cat part number on the engine plate, use 377-9082 instead — it is the same tensioner under a different brand. Alternate Perkins number: 2637A001.

V-ribbed belt tensioner with grooved pulley — do not use with flat/smooth belts. Primary applications: Massey Ferguson 5465/5475/6465/6475/6480 with 1104D-E44T 4.4L, and MF 7465/7475/7480 with 1106D-E66TA 6.6L. Also fits OEM industrial applications using Perkins 1100D/1200 series including generators, compressors, and equipment from various manufacturers.

Failure symptoms: belt squeal or chirp at idle, alternator warning light, water pump slippage causing elevated coolant temps, or visible belt deflection at the tensioner pulley. The spring mechanism fatigues over time — if the tensioner arm moves freely without resistance, replacement is overdue. Replace V-ribbed belt at the same time.

⚠️ Perkins and Cat use different part numbers for the same tensioner — verify whether your engine plate shows Perkins or Cat.