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The Gear Box Seal (50-8-12) specifically designed for Hyundai and Mitsubishi vehicles is a premium radial oil seal engineered for optimal performance in gearbox, transaxle, and rear-axle assemblies. Measuring an exact 50 mm inner diameter, 80 mm outer diameter, and 12 mm width, this seal ensures robust sealing integrity at input/output shafts, pinions, and drive shafts in transmission systems. Constructed with a precision-molded nitrile (NBR) elastomer lip, reinforced with a garter spring to maintain consistent contact pressure, and encased in a durable metal outer shell, it delivers reliable resistance against oil leakage, heat, and chemical exposure. OEM-compatible with Hyundai’s 43119 series and Mitsubishi’s MB393684 axle assemblies, the seal maintains the exact form, fit, and function required for these applications. Available in single-lip or double-lip designs and with optional FKM material for high-temperature or chemically aggressive environments, this gearbox oil seal is a vital component to reduce the risk of gearbox oil contamination and prolong bearing and clutch life in Hyundai/Kia and small Mitsubishi commercial vehicles.
Key Features
| Features | Description |
|---|---|
| Seal Dimensions | 50 mm (ID) × 80 mm (OD) × 12 mm (width) |
| Seal Type | Radial shaft oil seal (single or double lip variants available) |
| Material Composition | Nitrile (NBR) standard; optional FKM (Viton) for high-temperature resistance |
| Inner Spring | Garter spring (metal) for constant lip pressure and enhanced sealing |
| Outer Case | Press-fit metal shell for secure and stable housing installation |
| OEM Compatibility | Hyundai 43119 series transaxle seals and Mitsubishi MB393684 rear-axle assemblies |
| Application | Gearbox input/output shafts, transaxle pinions, differential pinions, final-drive shafts |
| Performance Benefits | High oil retention under rotational load, resistance to oil additives and ageing |
| Installation Note | Verify exact OEM part suffix and vehicle VIN prior to ordering |
| Material Options | Choose standard NBR or FKM for aggressive temperature/chemical environments |
| Attributes | Description |
|---|---|
| Inner Diameter | 50 mm |
| Outer Diameter | 80 mm |
| Width | 12 mm |
| Seal Lip Material | Nitrile Butadiene Rubber (NBR) or Fluorocarbon (FKM) |
| Spring Type | Garter spring made of metal |
| Outer Case Material | Metal, press-fit design |
| Lip Variant | Available in single-lip and double-lip (TC) configurations |
| OEM Part Number Hyundai | 43119 series (check exact suffix) |
| OEM Part Number Mitsubishi | MB393684 assembly (verify seal sub-part) |
| Typical Vehicle Fitments | Hyundai/Kia Accent, Elantra, Sonata, Tucson (manual transaxles); Mitsubishi Minicab, TownBox, Bravo series rear-axle/differential |
*Disclaimer: The above description has been AI-generated and has not been audited or verified for accuracy. It is recommended to verify product details independently before making any purchasing decisions.
Yes, this 50×80×12 radial oil seal is designed to match OEM specifications for Hyundai 43119 series transaxle seals and Mitsubishi MB393684 rear-axle assemblies, making it compatible with respective transmission and differential applications, though exact model and OEM suffix verification is essential.
The standard seal material is Nitrile Butadiene Rubber (NBR), ideal for typical gearbox oil sealing. Choose the optional Fluorocarbon (FKM) variant for applications exposed to high temperatures or aggressive chemical fluids to ensure extended service life.
This seal covers a broad range of gearbox shaft positions such as input, output, pinion, and final-drive shafts commonly found in Hyundai/Kia manual transaxles listed under the 43119 series, but confirming the exact OEM suffix and vehicle model year is recommended for fitment accuracy.
It is crucial because the 43119 series and MB393684 assembly numbers represent families of parts with varying sub-items; selecting the correct suffix or seal sub-part ensures correct fit, function, and performance for your specific vehicle application.
Yes, the seal is available in single-lip and double-lip (TC) variants. Double-lip seals provide additional protection against dust and contaminants, recommended for harsher environments or exposed gearbox locations.
Country Of Origin: India
A heavy-duty 50 × 80 × 12 radial oil seal intended for gearbox / transaxle shaft sealing (input/output / pinion / drive shaft locations). The 43119 family is used by Hyundai/Kia as transmission / transaxle oil seals; Mitsubishi listings show MB393684 as a rear-axle/spacer assembly in which related oil seals are fitted — so the 50×80×12 seal is commonly used in gearbox/differential assemblies across these OEMs.
Product description
Gearbox / Transmission Oil Seal — 50 × 80 × 12
Precision-moulded radial oil seal for gearbox, transaxle and final-drive applications. The seal features an engineered elastomer lip, a garter spring to maintain contact pressure, and a metal outer case for secure housing fit. Supplied to match OEM form, fit and function for Hyundai (43119 series) and compatible Mitsubishi assemblies where 50×80×12 sealing is specified.
Key specs
Benefits
OEM references & applications
Note: I could not find a publicly indexed Hyundai page exactly naming 43119-3A000 (many 43119-3A0xx / 43119-390xx items exist). The 43119 family is established as the transaxle / gearbox oil-seal group — confirm the final 4 digits against your VIN or the OEM parts fiche.
Typical vehicle models (examples where 43119 family / similar transaxle seals appear)
These are representative groups — final fitment must be confirmed by part suffix, engine/transmission code or VIN.
Fitment & verification checklist
Sourcing notes & recommended cross-references
Short catalogue copy
Gearbox / Transmission Oil Seal — 50×80×12
Precision radial oil seal for gearbox/transaxle and differential applications. OEM-family matched for Hyundai 43119-series transaxle seals and compatible with Mitsubishi rear-axle assemblies where 50×80×12 sealing is specified. High-quality elastomer lip with garter spring and metal outer case — available in NBR (standard) or FKM (high-temp). Verify OEM suffix and vehicle VIN before ordering.
Sources & references
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Delhi , India
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