Belts are the "transmission collaborative 纽带" of the engine accessory system, whose core function is to connect the crankshaft with accessories such as generators and air conditioning compressors through friction drive, realizing synchronous operation of multiple components and ensuring normal operation of basic functions like engine power supply and heat dissipation. During engine operation, belts need to maintain tension during high-speed rotation; if worn, cracked or loose, they will cause unstable accessory speed or even stoppage, leading to chain problems such as battery depletion and insufficient coolant circulation, affecting overall engine operation stability.
Volvo Penta Belts 20430376, 3838617, 978515, 978750 are designed for the accessory layout and transmission needs of D3/D4/D5 engines, using high-strength rubber composite material with a wear-resistant layer on the surface, featuring both flexibility and anti-stretching performance to adapt to temperature changes and vibration environment in the engine compartment. Their toothed or flat belt structure precisely fits corresponding pulleys, reducing the risk of slipping. Whether in continuous operation of marine power or intermittent operation of construction machinery, they can ensure collaborative work of the accessory system through stable transmission performance, reducing the probability of shutdown due to belt failure.
Ningbo Qiuning Trading Co., Ltd., as the supplier of this series of belts, provides two product options: original and auxiliary to meet different maintenance needs of users. Original products strictly follow Volvo Penta standards in material formula and dimensional accuracy, with better adaptability and durability; auxiliary products have more flexibility in cost. Users can choose suitable products according to equipment usage intensity and maintenance budget.
If you want to know the specific applicable models, replacement cycle or wear judgment method of this series of belts, please feel free to consult. Contact information: WeChat/WhatsApp: +8615888032469; E-mail: allen@perkins-rx.com.
Four sets: 877347
Generator 873771
Cylinder gasket 270789
Helical spring 467334
Helical spring 467335
Valve 3825958
Valve 467855
Seawater pump 3829313
Turbocharger 3802128
Cylinder head 3803500
Lubricating oil pump 479317
Belt 966958
Belt: 966870
Fuel pump 3803795
Control Unit 874463
Crankshaft rear oil seal 20412286
Fan belt 20592177
Hand oil pump 20450901
Water tank radiator 20412320
Expansion water tank 20845189
Flameout solenoid valve 20463928
V-belt 20701268
28V 35A generator 20584337
Regulator 20797555
Regulator 20412736
Motor suction switch 20460456
Crankshaft front oil seal 20412568
Generator assembly 37N-01010
Hand oil pump assembly 1106N1-010
Flywheel gear ring Z3900053
Crankshaft front oil seal assembly A3900709
Fan belt A3911568
Belt tensioner A3914086
Crankshaft rear oil seal A3925529
Starter motor assembly 3708Q01
Pump assembly A3960342
Controller ESD5500E
Water tank radiator Z3900428
Adjustable potential plate Z3900569
Crankshaft front oil seal 20412568
Sealing ring 20412286
Crankshaft rear oil seal 20777676
Fuel filter assembly 20860690
Fuel filter seat 11110709
Expansion water tank 20585482
Water level sensor 20585484
Water tank 21072151
Belt 21030260
Pump 3801164
Belt tensioner 20939282
Generator assembly 3801167
Common rail pressure sensor 20973777
Fuel pressure sensor 20886108
Crankshaft front oil seal 3832863
Crankshaft rear oil seal 85108352
Water tank 3843761
Air intercooler 3827870
Expansion water tank 1674916
Fan belt 3828041
Belt tensioner 20491753
Generator belt 978207
Generator regulator 1089451
Carbon brush fixator 840632
Starter motor 3827444
Starting motor suction switch 874347
Fuel pressure monitoring sensor 20424056
Water level sensor 8140024
Crankshaft front oil seal 85108352
Crankshaft rear oil seal 85108423
Fan belt 3594804
Belt tensioner 21479276
Belt tensioner 21422765
Generator belt 20464710
Generator 3803639
Starter motor 3801289
Crankshaft front oil seal 85108423
Crankshaft rear oil seal 85108352
Valve cover gasket 20736230
Fuel pressure sensor 20898038
Turbocharger 3802141
Upper water tank 21133904
Lower water tank 21134096
Water pipe 21134129
Fan belt 3827075
Belt tensioner 20762060
Belt tensioner 20762060
Belt tensioner 20487079
Tensioning wheel 20487079
