125x148x8.1mm Crankshaft Oil Seal FKM FPM, OEM 20518642 | Volvo Heavy Truck Engine Shaft Seal | VKEFOT
Model / SKU: VKEFOT-125-148-8.1-VOLVO-CRANK
125x148x8.1mm crankshaft oil seal made of FKM(FPM) fluoroelastomer, OEM 20518642. High quality aftermarket engine seal specially for Volvo heavy truck engine repair. Oil-resistant and heat-resistant, factory direct, in stock, worldwide shipping. Send RFQ for bulk wholesale pricing.
Tags: 125x148x8.1 oil seal, OEM 20518642 oil seal, Volvo truck crankshaft oil seal, FKM FPM crankshaft seal, heavy truck engine shaft seal, Volvo engine spare part, aftermarket truck crankshaft oil seal
Product photos
Key specs: Inner diameter mm: 125 | Outer diameter mm: 148 | Height mm: 8.1 | Material: FKM | Material: FKM(FPM) Fluoroelastomer, Dark Brown | Structure: double lip rotary shaft oil seal with metal casing and garter spring, heat and oil resistant for Volvo heavy truck crankshaft | specifications: 125x148x8.1 mm | Size: 125x148x8.1 mm
- Inner diameter mm: 125
- Outer diameter mm: 148
- Height mm: 8.1
- Material: FKM
- Material: FKM(FPM) Fluoroelastomer, Dark Brown
- Structure: double lip rotary shaft oil seal with metal casing and garter spring, heat and oil resistant for Volvo heavy truck crankshaft
- specifications: 125x148x8.1 mm
- Size: 125x148x8.1 mm
Technical summary
Product specifications. Refer to the approved drawing for dimensional tolerances and installation requirements.
| Spec | Value |
|---|---|
| Material | FKM(FPM) Fluoroelastomer, Dark Brown |
| Structure | double lip rotary shaft oil seal with metal casing and garter spring, heat and oil resistant for Volvo heavy truck crankshaft |
| Size | 125x148x8.1 mm |
Pricing: request a quote (B2B / wholesale).
MOQ / commerce notes: MOQ: Typically 100–5,000 pcs | Lead Time: 7–15 working days
Product details
This aftermarket 125x148x8.1mm crankshaft oil seal is manufactured from high-performance FKM (FPM) fluoroelastomer, OEM reference number 20518642. Designed for Volvo heavy-duty truck engine crankshaft sealing, it delivers outstanding heat resistance, oil resistance and wear resistance under high-temperature engine operating conditions.
VKEFOT manufactures oil seals, O-rings and custom rubber sealing components in Xingtai, China. Our products export to Europe, North America, Middle East and Southeast Asia. Importers, heavy truck engine part wholesalers and MRO distributors can send RFQ with size, purchase quantity and destination country for formal quotation.
Features & Benefits
Dual lip sealing structure prevents engine oil leakage and blocks dust, mud and contaminants from entering the engine crankcase.
Built-in garter spring maintains stable radial compression force on sealing lip under continuous engine rotation and thermal cycling.
FKM (FPM) fluoroelastomer material provides excellent high-temperature resistance and compatibility with modern high-performance engine oils.
Reinforced metal outer casing ensures tight press-fit installation inside engine housing.
This seal is an aftermarket replacement part; verify shaft and bore dimensions and Volvo engine model before placing your order.
Material & Specification
- Sealing lip：FKM (FPM) fluoroelastomer, dark brown
- Reinforcement：carbon steel metal casing
- Spring：carbon steel garter spring
Typical working temperature: -20°C ~ +200°C
Confirm rubber compound grade with RFQ for special operating applications.
Compatible fluids: synthetic & mineral engine oil, heavy-duty diesel engine lubricants.
Not suitable for strong polar solvents, ketones and special chemical media.
Applications & Compatibility
Aftermarket replacement crankshaft oil seal for Volvo heavy truck engines, OEM reference 20518642. Widely used for engine overhaul, fleet maintenance and aftermarket repair jobs.
Check shaft diameter, housing bore dimension and engine model before purchase to avoid costly size mismatch.
Selection & Installation Guide
Selection Tips
Confirm shaft dimension 125 mm, housing bore 148mm and seal width 8.1mm. FKM material is recommended for high temperature heavy-duty diesel engine working environment.
Installation Steps
- Clean shaft and housing bore fully, remove burrs, rust and old seal residue.
- Lubricate sealing lips and shaft with compatible engine oil; dry installation is not allowed.
- Press the seal squarely and evenly with proper installation tool, keep perpendicular to bore.
- Do not strike rubber lip directly, protect seal outer surface from scratches and deformation.
- Rotate crankshaft manually after assembly, then run low pressure test and check for oil leakage.
Packaging & Delivery
Each seal packed in neutral polybag, then packed into export cartons, normally 300–600 pcs per carton and adjustable on request.
- Lead Time：7–15 working days for this standard stocked spec. MOQ: Typically 100–5,000 pcs; exact quantity, unit price and lead time confirmed on formal quotation.
Samples and small trial lots are available for stocked sizes; sample freight cost confirmed on RFQ.
Send inquiry with dimension in mm, quantity, destination country and working medium for a firm quotation.
FAQ
What is this 125x148x8.1mm oil seal used for?
This 125x148x8.1mm FKM crankshaft oil seal with OEM reference 20518642 is aftermarket replacement seal for Volvo heavy truck engine crankshaft sealing.
What are the full specifications of 125x148x8.1 Volvo crankshaft oil seal?
This seal: 125mm inner diameter,148mm housing bore,8.1mm width. Material FKM(FPM) fluoroelastomer. Structure: double lip rotary shaft oil seal with metal casing and garter spring for Volvo heavy truck engine crankshaft.
What OEM number is 125x148x8.1 crankshaft oil seal?
The OEM reference number is 20518642, this FKM crankshaft oil seal is widely used for Volvo heavy-duty truck engine repair and overhaul.
What temperature can FKM FPM crankshaft oil seal withstand?
FKM(FPM) fluoroelastomer oil seal can work steadily from -20°C up to 200°C, ideal for high temperature heavy-duty diesel engine environments.
Is this OEM 20518642 oil seal genuine OEM part?
No. It is an aftermarket replacement crankshaft seal for Volvo heavy truck engine repair and fleet maintenance. Please confirm all dimensions and engine model before purchase.
How to install 125x148x8.1mm Volvo crankshaft oil seal correctly?
1. Clean shaft and housing bore thoroughly, remove burrs and old seal residue. 2. Lubricate lips and shaft with compatible engine oil, dry installation is forbidden. 3. Press seal evenly with installation tool and keep perpendicular. 4. Never hammer the seal, protect outer surface from scratches. 5. Rotate crankshaft manually and run leakage test.
What is MOQ and lead time for bulk order of 125x148x8.1 FKM crankshaft oil seals?
MOQ is typically 100–5,000 pcs. Lead Time:7–15 working days. Final price and lead time will be confirmed on formal quotation.
What information do I need to submit for RFQ of this Volvo truck crankshaft oil seal?
Send ID×OD×thickness in mm, purchase quantity, destination country and working medium for quotation.
Can you make custom logo and export packaging for this FKM crankshaft oil seal?
Custom logo, marking and export packaging are available. All custom requirements need to be confirmed before order.
What lubricants are compatible with FKM crankshaft oil seal?
FKM (FPM) works well with mineral and synthetic engine oils for heavy-duty diesel engines. It is not suitable for ketones and strong polar solvents.