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Corona, CA | Peachtree City, GA
Chicago, IL | Wasilla, AK
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GSM 101-4 Vertical Oil Filter Adapter Kit for Lycoming Engines
$584.00/Each
Part# 08-19361
MFR Model# 101-4
MFR Model# 101-4
Overview
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This is an 90 degree oil filter adapter fully machined from 6061-T6 billet aluminum and anodize in black. It is similar to other adapters on the market but only weighs 17.2 oz. made of billet rather than cast aluminum.
The GSM Inc. vertical "full flow" oil filter kit is designed to offer Lycoming engine owners several advantages over the standard Lycoming oil screen or filter hardware. This kit repositions the filter in a vertical orientation, delivering two primary benefits:
Clean Filter Changes When it’s time to replace the filter, a simple prick punch in the top of the filter allows oil to drain back into the sump, preventing spills during removal. This eliminates the need to clean the accessory case, lower cowl, or nose gear area. Adapter and Gasket kit ONLY (No Oil Filter Included). Some applications require a spacer between the adapter and accessory case. 8130 Form are not available for this adapter |
Features
- No moving parts and no required maintenance.
- Compatible with Champion aviation oil filters.
- Fits most Lycoming engines with dual magnetos.
- Temperature probe hardware transfers directly from the OEM screen housing or filter adapter.
- Fully bolt-on installation—no interference with standard engine accessories, including vacuum pad-driven alternators and baffling.
- Sturdy, accessible safety wire anchor simplifies securing the filter.
- Note: Always verify adapter and filter clearance within the engine compartment prior to final installation.
Experimental Aircraft / Field Approval
- Retrofit Engine Models
- Not compatible due to interference with the top center tube of the five-point engine hard mount.
- Generally compatible with all Lycoming-equipped models using a four-point engine mount, unless prior modifications cause interference.
- Lycoming O-235 Series: May not be supported—verify compatibility before installation
- O-235, O-290 (O, IO, LIO, AIO, AEIO versions)
- O-320*, O-340 (O, IO, LIO, HO, HIO, TIO, AIO, AEIO versions)
- O-360*, (O, GO, GSO versions)
- O-435 (IGO, IGSO versions)
- O-480 (O, IO, HIO, TIO, AEIO, LTIO versions)
- O-540
- IO-720
- *Note: This conversion is NOT compatible with the 320 cubic inch "76 Series" model (suffix H) or those versions of the 360 cubic inch engine with a dual magneto on a common drive (suffix E).
In The Box
- Filter housing
- Washers, seal rings, and gasket
- Installation instructions
- Installation Limitations and Compatibility
Q&A
Please note, Aircraft Spruce Canada's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Canada assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
Q: Which oil filter does this GSM 101-4 adapter take?
This is designed to use either the 48108 or the 48109 oil filter.
Q: Is the GSM 101-4 vertical oil filter adapter kit FAA STC Approved?
No this is for use in experimental aircraft only.