Lycoming Crankshaft Oil Seal – Split Style
Lycoming Crankshaft Oil Seal – Split Style
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Restore a dependable seal at the front of your Lycoming engine with the split-style crankshaft seal is for Lycoming P/N LW-11997 and is designed to help prevent engine oil leakage around the crankshaft where it exits the crankcase.
The split design allows the seal to be installed around the crankshaft without requiring the same stretching procedure used with a solid-style crankshaft seal, making it a popular replacement during crankshaft seal maintenance and engine service.
Part Information
- P/N: LW-11997
- Description: Crankshaft Oil Seal
- Style: Split
- Location: Front crankshaft / propeller end
- Quantity: 1 Seal
Lycoming Engine Applications
| Engine Series | Compatible Configurations |
|---|---|
| AEIO-360 | A1E • B1G6 • H1A |
| AEIO-540 | D4B5 |
| AIO-320 | B1B • C1B |
| HIO-360 | A1A • B1A • C1A • C1B • D1A • E1AD • E1BD |
| HO-360 | B1A • B1B |
| IO-320 | B1A • B1C • C1A • D1A • D1B • E1A • E1B • E2A • E2B |
| IO-360 | A1A • B1A • B1B • C1A • C1B • C1C • C1C6 • C1D6 • C1E6 • C1F • J1A6D |
| IO-540 | A1A5 • B1A5 • B1C5 • C1B5 • C4B5 • C4C5 • C4D5D • D4A5 • E1A5 • E1B5 • G1A5 • G1B5 • G1C5 • G1E5 • G1F5 • J4A5 • K1E5 • R1A5 • T4A5D • T4B5D • T4C5D • W3A5D |
| IVO-360 | A1A |
| LIO-320 | B1A • C1A |
| LO-360 | A1G6D • E1AD |
| LTO-360 | E1A6D |
| O-235 | C1 • C1B • C1C • C2A • C2C • F2A • F2B • H2C • J2A • K2A • K2B • K2C • L2A • L2C • M1 • N2A • N2C • P2A |
| O-290 | D • D2 • D2B • D2C |
| O-320 | A2A • A2B • A2C • A2D • A3A • A3B • A3C • B2A • B2B • B2C • B3A • B3B • B3C • D1A • D1D • D1F • D2A • D2B • D2C • D2G • D3G • E1A • E1F • E2A • E2B • E2C • E2D • E2F • E2G • E2H • E3D • E3H • H2AD |
| O-340 | A1A • A2A • B1A |
| O-360 | A1A • A1AD • A1C • A1D • A1F6 • A1F6D • A1G6 • A1G6D • A1LD • A2A • A2D • A2E • A2F • A2G • A3A • A3AD • A4A • A4G • A4J • A4K • A4M • A4N • A5AD • B2A • C1A • C1C • C1E • C1F • C1G • C2A • C2C • C2D • C2E • D2A • D2B • E1A6D • F1A6 |
| O-540 | A1A • A1A5 • A1B5 • A1C5 • A1D • A1D5 • A2B • A3D5 • B1A5 • B1B5 • B2B5 • B2C5 • B4B5 • E4A5 • E4B5 • E4C5 • F1A5 • F1B5 • J1A5D • J3A5D • J3C5D • L3C5D |
| TIO-360 | A1B |
| TIO-540 | C1A • E1A • G1A • H1A • AA1AD • AB1AD |
| TO-360 | E1A6D |
| VO-360 | A1A • A1B • B1A |
Fitment Note: Match your complete Lycoming engine model and suffix to the configurations listed above before ordering. Crankshaft seal requirements can vary by engine configuration.
Installation
- DOWSIL™ 737 Neutral Cure Sealant
- Pliobond® #20
- Pliobond® #25
For convenient installation, pair this seal with our DOWSIL™ 737 Crankshaft Sealant – 3 oz Tube.
Important Fitment Note
Lycoming engines can use different crankshaft seal configurations depending on the specific engine model, crankcase and previous modifications. LW11997 is a split-style seal and should not automatically be substituted for every Lycoming crankshaft seal.
Airboat Solutions
Ideal for Lycoming-powered airboats undergoing front crankshaft seal replacement, oil-leak repair, engine maintenance or overhaul.
Sold individually – Qty. 1
