The Volvo crankshaft oil seal 21486081 is a critical component in the engine’s lubrication system, designed to create a tight seal between the crankshaft and engine block. By preventing oil leakage and blocking the entry of dust, dirt, and moisture, it maintains proper oil levels, ensures consistent lubrication of rotating parts, and protects internal components from corrosion—essential for Volvo engines in trucks, construction machinery, and industrial equipment.
Manufactured to meet strict standards, this oil seal is available in options tailored to diverse needs. Some units are crafted to align with original equipment specifications, using high-grade nitrile rubber or polytetrafluoroethylene (PTFE) with reinforced metal cores. These undergo rigorous testing, including pressure resistance checks, temperature endurance trials, and wear resistance evaluations, ensuring they match exact dimensional and performance criteria. Ideal for users prioritizing components that adhere to the engine’s original design, they deliver reliable sealing performance under extreme operating conditions.
Other versions are engineered to comply with industry standards, offering reliable performance at a balanced cost. Produced by reputable manufacturers, they feature durable materials and precision molding, ensuring proper fit and effective sealing with the crankshaft and engine block. These seals provide practical solutions for routine maintenance, balancing quality with affordability to suit various operational budgets.
Both variants are designed for precise fitment, with outer diameter, lip design, and installation dimensions matching original specifications. This ensures seamless integration during replacement, minimizing installation time and reducing the risk of improper sealing that could lead to oil loss or contamination.
In supply and sales, we maintain a steady inventory to support both scheduled maintenance and urgent repairs. Our team provides detailed compatibility checks to confirm the seal fits your specific Volvo engine model, and offers guidance to help you select the option that aligns with your usage intensity (e.g., long-haul transportation vs. stationary industrial use) and maintenance priorities.
All crankshaft oil seals undergo strict quality inspections, verifying material elasticity, sealing pressure resistance, and resistance to oil and temperature fluctuations. This commitment ensures reliable performance, whether used in engines operating in cold climates, dusty construction sites, or heavy-duty transportation.
Whether you’re a repair technician, fleet manager, or equipment owner, the Volvo crankshaft oil seal 21486081 is a dependable choice. It combines effective leak prevention, precise fitment, and consistent durability, making it indispensable for maintaining your Volvo engine’s lubrication efficiency and overall operational integrity. Choose our supply service for quality components and seamless support.
We are a supplier of various engine assemblies and engine accessories in China, with a wide range of brands and types, and a huge warehouse storage and professional after-sales maintenance team. Both original and subsidiary factories can provide it, supplied globally.
Ningbo Qiuning Trading Co., Ltd. Service Supply and Sales Center
Our company provides more engine assemblies and accessories of different brands and models
If you are interested, please add my contact information directly:
WeChat/WhatsApp:+86 15888032469
E-mail: allen@perkins-rx.com
Remarks: The model or serial number processing is faster and the price is more favorable
We provide global logistics and delivery services, genuine product guarantee, and support online ordering.

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
Generator 3803639
Generator belt 20430376
Starter motor 3803838
Motor suction switch 874745
Water level sensor 8140024
Temperature sensor 20524936
Temperature sensor 20898038
Engine oil level sensor 21042447
Camshaft position sensor 20513343
Water temperature sensor 20513340
Water pump 24070789
Impeller 3886760
Bearing 11013
Mechanical seal 3829315
Oil seal ring 845795
Sealing ring 20459961
Gasket 888845
Gasket 888820
Gasket 20459005
Gasket 20450737
Gasket 20450739
Gasket 20557208
Gasket 23767260
Gasket 21242584
Gasket 20405822
Liner 20405825
Oil seal ring 21306356
Gasket 947281
Gasket 20405613
Gasket 20875134
Gasket 20405652
Gasket 20459904
Gasket 20405843
Gasket 11998
Gasket 20405888
Oil seal ring 21486081
Protective pad 888770
End cover 23171014
Gasket 947620
Gasket 11700426
Liner 20405747
Gasket 20412325
Gasket 20412341
Liner 20412588
Gasket 888775
Oil seal ring 976930
Gasket 20460218
Sealing ring 20405907
Fastening sleeve 21455862
Joint sealing gasket 11700336
Valve 20565912
Valve 20714469
Valve guide rod 23935512
Positioning plate 24003284
Valve seat 20459962
Valve seat 20459963
Fuel injector nozzle 20524235
Repair Package 20460816
Antifreeze 24712786
Impeller 24139377
Spacer 11700325
Oil seal ring 888786
Joint sealing gasket 888784
Gasket 888889
Gasket 20405627
Gasket 976013
Gasket 969011
Temperature sensor 21073863
Switch 3586736
Joint sealing gasket 21679835
Liner 20405595
Gasket 888778
Joint sealing gasket 21815267
Piston cooling nozzle 20405561
Complete set of gaskets 21951394
Gasket 3838287
Temperature sensor 20460353
Partition 20405744
Gasket 20412359
Spacer 20405721
Positioning ring 20405543