131-0157 Onan Mechanical Seal Assembly OBSOLETE (Short Shaft) MDJ/ A/B/E (Long Shaft) MCCK, (4.0 & 6.5kw) MDJE (7.5kw) 8/27/2025 THIS PART IS IN STOCK 8/27/2025
131-0157 Onan Mechanical Seal Assembly OBSOLETE (Short Shaft) MDJ/ A/B/E (Long Shaft) MCCK, (4.0 & 6.5kw) MDJE (7.5kw) 8/27/2025 THIS PART IS IN STOCK 8/27/2025
131-0157 Onan Mechanical Seal Assembly OBSOLETE (Short Shaft) MDJ/ A/B/E (Long Shaft) MCCK, (4.0 & 6.5kw) MDJE (7.5kw) 8/27/2025 THIS PART IS IN STOCK 8/27/2025
131-0157 Onan Mechanical Seal Assembly OBSOLETE (Short Shaft) MDJ/ A/B/E (Long Shaft) MCCK, (4.0 & 6.5kw) MDJE (7.5kw) 8/27/2025 THIS PART IS IN STOCK 8/27/2025
131-0157 Onan Mechanical Seal Assembly OBSOLETE (Short Shaft) MDJ/ A/B/E (Long Shaft) MCCK, (4.0 & 6.5kw) MDJE (7.5kw) 8/27/2025 THIS PART IS IN STOCK 8/27/2025
131-0157 Onan Mechanical Seal Assembly OBSOLETE (Short Shaft) MDJ/ A/B/E (Long Shaft) MCCK, (4.0 & 6.5kw) MDJE (7.5kw) 8/27/2025 THIS PART IS IN STOCK 8/27/2025
131-0157 Onan Mechanical Seal Assembly OBSOLETE (Short Shaft) MDJ/ A/B/E (Long Shaft) MCCK, (4.0 & 6.5kw) MDJE (7.5kw) 8/27/2025 THIS PART IS IN STOCK 8/27/2025
131-0157 Onan Mechanical Seal Assembly OBSOLETE (Short Shaft) MDJ/ A/B/E (Long Shaft) MCCK, (4.0 & 6.5kw) MDJE (7.5kw) 8/27/2025 THIS PART IS IN STOCK 8/27/2025

131-0157 Onan Mechanical Seal Assembly OBSOLETE (Short Shaft) MDJ/ A/B/E (Long Shaft) MCCK, (4.0 & 6.5kw) MDJE (7.5kw) 8/27/2025 THIS PART IS IN STOCK 8/27/2025

$225.00
Size Guide
Add to wishlist

SKU:

131-0157

CATEGORIES:

Ball Joints, Bearing Kits, Cams, Gears, Plates, Flywheels & Shafts, Gaskets, O-Rings, Screens, Seals & Shims, HOME PAGE, OBSOLETE, ONAN
DESCRIPTION

131-0157 Onan Mechanical Seal Assembly OBSOLETE (Short Shaft) MDJ/ A/B/E (Long Shaft) MCCK, (4.0 & 6.5kw) MDJE (7.5kw)

Short Shaft MDJA, MDJB & MDJE

Long Shaft MCCK 4.0 & 6.5 kw

Long Shaft MDJE 7.5 kw  

"8/27/2025 THIS PART IS IN STOCK as of 8/27/2025"  

ADDITIONAL INFORMATION
REVIEW

OTHER PRODUCT

Other Product Picked For You

ONAN 510-0112 Onan Bearing Ball (Onan Green Box) 9/8/2025 THIS PART IS IN STOCK 9/8/2025 ONAN 510-0112 Onan Bearing Ball (Onan Green Box) 9/8/2025 THIS PART IS IN STOCK 9/8/2025
Sold out Sale

ONAN 510-0112 Onan Bearing Ball (Onan Green Box) 9/8/2025 THIS PART IS IN STOCK 9/8/2025

$0.00 $60.99
103-0251 Onan Gearcase Gasket For MDJB, MDJE & A Series 12/20/2024 THIS PART IS IN STOCK 12/20/2024 103-0251 Onan Gearcase Gasket For MDJB, MDJE & A Series 12/20/2024 THIS PART IS IN STOCK 12/20/2024
Sold out Sale

103-0251 Onan Gearcase Gasket For MDJB, MDJE & A Series 12/20/2024 THIS PART IS IN STOCK 12/20/2024

$0.00 $19.99
510-0115 Onan Ball Bearing 3/21/2024 THIS PART IS IN STOCK 3/21/2024 510-0115 Onan Ball Bearing 3/21/2024 THIS PART IS IN STOCK 3/21/2024
Sold out Sale

510-0115 Onan Ball Bearing 3/21/2024 THIS PART IS IN STOCK 3/21/2024

$0.00 $275.99
131-0158 Onan Wear Plate Water Pump 12/10/2024 THIS PART IS IN STOCK 12/10/2024 131-0158 Onan Wear Plate Water Pump 12/10/2024 THIS PART IS IN STOCK 12/10/2024
Sold out Sale

131-0158 Onan Wear Plate Water Pump 12/10/2024 THIS PART IS IN STOCK 12/10/2024

$0.00 $20.99
104-0418 Onan Gear Crankshaft For DJE Genset Spec AB-AG) 12/20/2024 THIS PART IS IN STOCK 12/20/2024 104-0418 Onan Gear Crankshaft For DJE Genset Spec AB-AG) 12/20/2024 THIS PART IS IN STOCK 12/20/2024
Sold out Sale

104-0418 Onan Gear Crankshaft For DJE Genset Spec AB-AG) 12/20/2024 THIS PART IS IN STOCK 12/20/2024

$0.00 $199.00
305-0548 Onan Bridge Rectifier for YCB Series Two-Bearing Alternator (Spec A-F) [Begin Spec C] For MDKD Marine Genset 305-0548 Onan Bridge Rectifier for YCB Series Two-Bearing Alternator (Spec A-F) [Begin Spec C] For MDKD Marine Genset
Sold out Sale

305-0548 Onan Bridge Rectifier for YCB Series Two-Bearing Alternator (Spec A-F) [Begin Spec C] For MDKD Marine Genset "THIS PART IS IN STOCK"

$0.00 $69.99
114-0188 Onan Bearing HLF STD [Replaces the superseding sequence 114-0145; 114B145] OBSOLETE (2/Pack) 12/10/2024 THIS PART IS IN STOCK 12/10/2024 114-0188 Onan Bearing HLF STD [Replaces the superseding sequence 114-0145; 114B145] OBSOLETE (2/Pack) 12/10/2024 THIS PART IS IN STOCK 12/10/2024
Sold out Sale

114-0188 Onan Bearing HLF STD [Replaces the superseding sequence 114-0145; 114B145] OBSOLETE (2/Pack) 12/10/2024 THIS PART IS IN STOCK 12/10/2024

$0.00 $39.99
191-1819 Onan Gear 8/20/2024 THIS PART IS IN STOCK 8/20/2024 191-1819 Onan Gear 8/20/2024 THIS PART IS IN STOCK 8/20/2024
Sold out Sale

191-1819 Onan Gear 8/20/2024 THIS PART IS IN STOCK 8/20/2024

$0.00 $80.99
132-0282 Onan Impeller Kit & Cam replaces Onan 132-0334 Impeller Kit for MCKC & MDKD w/Heat Exchanger 7/8/2025 THIS PART IS IN STOCK 7/8/2025 132-0282 Onan Impeller Kit & Cam replaces Onan 132-0334 Impeller Kit for MCKC & MDKD w/Heat Exchanger 7/8/2025 THIS PART IS IN STOCK 7/8/2025
Sold out Sale

132-0282 Onan Impeller Kit & Cam replaces Onan 132-0334 Impeller Kit for MCKC & MDKD w/Heat Exchanger 7/8/2025 THIS PART IS IN STOCK 7/8/2025

$0.00 $248.20
3854249 Volvo Roller Bearing 1 Kit 10/30/2025 THIS PART IS IN STOCK as of 10/30/2025 3854249 Volvo Roller Bearing 1 Kit 10/30/2025 THIS PART IS IN STOCK as of 10/30/2025
Sold out Sale

3854249 Volvo Roller Bearing 1 Kit 10/30/2025 THIS PART IS IN STOCK as of 10/30/2025

$0.00 $49.99