Lower Unit

Assembly

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Gearcase converting vertical drive to the horizontal prop shaft.

Direct parts	6
Total parts	11
Used in	1 assembly
Class	Assembly

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Gearcase converting vertical drive to the horizontal prop shaft. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Lower Unit parts and their functions

6 top-level parts · 11 parts in total · full bill of materials below

Lower Unit parts diagram: 1 gearbox housing, 2 helical gear pair, 3 propeller shaft, 4 propeller, 5 ball bearing, 6 oil seal. 11 parts in 6 top-level items. — Lower Unit parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.

#	Part	Qty	What it does
1	Gearbox Housing	1×	Gearcase casting
2	Helical Gear Pair	2×	Forward + reverse bevel gears
3	Propeller Shaft	1×	Stainless output shaft splined to the propeller.
4	Propeller	1×	Three-blade stainless propeller on a rubber hub.
5	Ball Bearing	4×	Deep-groove radial ball bearing.
6	Oil Seal	2×	Spring-loaded rotary lip seal that keeps lubricant inside a housing and dirt out where a shaft passes through, sized to DIN 3760.

3D model

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Build & assembly graph

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Bill of materials for Lower Unit

6 top-level lines · 6 rows shown · 11 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Gearbox Housing	gearbox-housing	1×	1	·	part
2	Helical Gear Pair	gear-pair	2×	2	·	part
3	Propeller Shaft	center-console-boat-prop-shaft	1×	1	·	part
4	Propeller	center-console-boat-propeller	1×	1	·	part
5	Ball Bearing	ball-bearing	4×	4	·	part
6	Oil Seal	oil-seal	2×	2	·	part

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Where the lower unit is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Marine 1 Center-Console Boat

Used in 1 assembly

Outboard Motor

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work

Vendor	HQ	Specialty	MOQ	Lead time
🇨🇳Foxconn foxconn.com ↗	Shenzhen, CN	Electronics contract mfg	1,000 pcs	6–10 wks
🇸🇬Flex (Singapore) flex.com ↗	Singapore	Electronics contract mfg	1,000 pcs	6–10 wks
🇮🇳Dixon Technologies dixoninfo.com ↗	Noida, IN	Electronics contract mfg	1,000 pcs	6–10 wks
🇨🇳BYD Electronics bydelectronic.com ↗	Shenzhen, CN	Electronics contract mfg	1,000 pcs	6–10 wks
🇸🇬Venture Corp venture.com.sg ↗	Singapore	Electronics contract mfg	1,000 pcs	6–10 wks