High-precision rear crankshaft oil seal (80-96-9) engineered to prevent oil leakage at the crankshaft exit while protecting adjoining components (flywheel, clutch housing, gearbox) from oil contamination. Supplied to OEM dimensional tolerances and compatible with specified Mitsubishi and Hyundai OEM part numbers.
OEM Cross-Reference
- Mitsubishi: MD069947, MD343564 (used in Lancer / Pajero families and related Mitsubishi engines)
- Hyundai: 21321-42041, 21443-32000 (used in Hyundai engines where 80×96×9 rear crank sealing is specified)
Use the OEM number + vehicle VIN/engine code to confirm exact fitment before ordering.
Size & Technical Specification
- Inner Diameter (ID): 80 mm
- Outer Diameter (OD): 96 mm
- Width / Thickness: 9 mm
- Seal Type: Radial crankshaft rear oil seal (rear main)
Typical Construction:
- Sealing lip: oil-resistant elastomer (NBR standard; FKM/Viton option available)
- Garter spring: stainless steel garter to maintain lip contact pressure
- Outer case: metal press-fit shell for secure housing location
- Lip design: single or double-lip variants available (oil + dust protection)
Vehicle / Engine Applications (Representative)
Mitsubishi:
- Lancer family (models/engines that use the 80×96×9 rear main seal)
- Pajero family (selected petrol / diesel engines where rear crank seal size matches)
- Related Mitsubishi platforms using MD069947 / MD343564 — confirm engine/chassis before fitment.
Hyundai:
- Engines/vehicles referenced by OEM 21321-42041 and 21443-32000 (models such as Accent/Elantra/others that share same rear crank seal geometry).
Also used in Hyundai platforms where the rear crank seal is specified as 80×96×9 — verify with VIN/engine code.
Important: Model lists vary by year, engine code and market. Always verify fitment by cross-checking the OEM part number, engine code, or by measuring the old seal.
Functional Benefits
- Prevents oil leakage from crankshaft rear face into clutch / bellhousing area
- Protects clutch plates, transmission input and flywheel area from oil contamination
- Maintains engine oil pressure and reduces oil consumption
- Durable sealing under high RPM and thermal cycling conditions
Material & Performance Options
- Standard: Nitrile Rubber (NBR) — oil & temperature resistant for standard passenger vehicle use
- Premium: FKM / Viton — recommended for high-temperature or aggressive-fluid environments
- Variants: Single-lip (oil sealing) or Double-lip / TC (dust + oil protection) depending on exposure
Installation Notes
- Always replace rear crank seal with correct orientation (lip faces oil side).
- Clean bore and shaft seating area; check for scoring on crankshaft surface.
- Use correct press-fit tooling; press squarely to avoid lip damage.
- Replace related fasteners, pilot bearing / rubber bushes if worn.
- Torque bolts as per vehicle service manual; confirm rotor/shaft end-float clearance where applicable.
Failure Symptoms (When to Replace)
- Oil seepage from bellhousing / clutch area
- Oil on clutch plates or transmission input shaft
- Increased engine oil consumption without external leaks elsewhere
- Visible seal lip damage, hardening, or deformation on inspection
Quality & Testing
- Manufactured to tight dimensional tolerances for leak-free press fit
- Garter spring pre-tension checked for consistent sealing force
- Material compound tested for abrasion, swell and heat aging (batch certificates available on request for bulk orders)
Packaging & Ordering Options
- Sold per piece (single seal) or boxed sets for engine overhauls
- Available with VINSON private-label packaging and traceable batch codes for export orders
Why Choose This Seal
- OEM-matched dimensions and cross-references to Mitsubishi & Hyundai part numbers minimize fitment risk.
- Material options allow selection for standard service or high-temperature applications.
- Robust design reduces risk of oil contamination to gearbox/clutch assemblies.
Description provided by vinson industries.
FIEO Registered
Export Ready
