Mercury Propeller | 25-70hp | 1970-current

Name: Mercury Propeller | 25-70hp | 1970-current
Brand: Propco Marine Propellers

Model LM80-9SP*

Aluminum and stainless steel 3-blade propellers by Propco for Mercury 25–70 hp outboards (1974–current), thru-hub exhaust; pitches 9 to 16.

Description

Mercury Propeller | 25-70hp | 1970-current is a range of 3-blade replacement propellers for Mercury 25 hp 4-stroke, 25 hp Bigfoot and 35–70 hp outboards, model years 1974 to current, with thru-hub exhaust. The range is offered in aluminum and stainless steel versions. Propco designs and manufactures its propellers in the USA.

Fitment

Make: Mercury
Horsepower: 25 hp 4-stroke, 35, 40, 45, 50, 65, 70 hp; 25 hp Bigfoot
Years: 1974–current
Blades: 3
Hub: Thru-hub exhaust
Thrust washer: 73345A1

Available propellers

Sizes are diameter x pitch.

`LM80-9SP*` – 12 x 9, aluminum, heavy load, special performance, cupped
`LM79-10SP*` – 12 x 10, aluminum, heavy load, special performance, cupped
`LM78-11SP*` – 12 x 11, aluminum, cruise, special performance, cupped
`LM77-12SP*` – 10 3/8 x 12, aluminum, cruise, special performance, cupped
`LM75-13SP*` – 10 3/8 x 13, aluminum, cruise, special performance, cupped
`LM76-14SP*` – 10 3/8 x 14, aluminum, cruise, special performance, cupped
`LM74-15SP*` – 10 x 15, aluminum, light load, special performance, cupped
`LM73-16SP*` – 10 x 16, aluminum, light load, special performance, cupped
`SSLM79-10SP*` – 10 1/2 x 10, stainless steel, heavy load, special performance, cupped
`SSLM78-11SP*` – 10 1/2 x 11, stainless steel, cruise, special performance, cupped
`SSLM77-12SP*` – 10 1/2 x 12, stainless steel, cruise, special performance, cupped
`SSLM75-13SP*` – 10 1/2 x 13, stainless steel, cruise, special performance, cupped
`SSLM76-14SP*` – 10 1/2 x 14, stainless steel, light load, special performance, cupped
`SSLM74-15SP*` – 10 1/2 x 15, stainless steel, light load, special performance, cupped
`SSLM73-16SP*` – 10 1/2 x 16, stainless steel, light load, special performance, cupped

Selection notes

If replacing an uncupped propeller, choose a cupped propeller with 2" less pitch; boats with power trim may use the same pitch.

Specifications

Size	LM80-9SP* ( 12 x 9 \| AL \| HL \| SP* ), LM79-10SP* ( 12 x 10 \| AL \| HL \| SP* ), LM78-11SP* ( 12 x 11 \| AL \| C \| SP* ), LM77-12SP* ( 10 3/8 x 12 \| AL \| C \| SP* ), LM75-13SP* ( 10 3/8 x 13 \| AL \| C \| SP* ), LM76-14SP* ( 10 3/8 x 14 \| AL \| C \| SP* ), LM74-15SP* ( 10 x 15 \| AL \| LL \| SP* ), LM73-16SP* ( 10 x 16 \| AL \| LL \| SP* ), SSLM79-10SP* ( 10 1/2 x 10 \| SS \| HL \| SP* ), SSLM78-11SP* ( 10 1/2 x 11 \| SS \| C \| SP* ), SSLM77-12SP* ( 10 1/2 x 12 \| SS \| C \| SP* ), SSLM75-13SP* ( 10 1/2 x 13 \| SS \| C \| SP* ), SSLM76-14SP* ( 10 1/2 x 14 \| SS \| LL \| SP* ), SSLM74-15SP* ( 10 1/2 x 15 \| SS \| LL \| SP* ), SSLM73-16SP* ( 10 1/2 x 16 \| SS \| LL \| SP* )
Price	149.00

Size

LM80-9SP* ( 12 x 9 | AL | HL | SP* ), LM79-10SP* ( 12 x 10 | AL | HL | SP* ), LM78-11SP* ( 12 x 11 | AL | C | SP* ), LM77-12SP* ( 10 3/8 x 12 | AL | C | SP* ), LM75-13SP* ( 10 3/8 x 13 | AL | C | SP* ), LM76-14SP* ( 10 3/8 x 14 | AL | C | SP* ), LM74-15SP* ( 10 x 15 | AL | LL | SP* ), LM73-16SP* ( 10 x 16 | AL | LL | SP* ), SSLM79-10SP* ( 10 1/2 x 10 | SS | HL | SP* ), SSLM78-11SP* ( 10 1/2 x 11 | SS | C | SP* ), SSLM77-12SP* ( 10 1/2 x 12 | SS | C | SP* ), SSLM75-13SP* ( 10 1/2 x 13 | SS | C | SP* ), SSLM76-14SP* ( 10 1/2 x 14 | SS | LL | SP* ), SSLM74-15SP* ( 10 1/2 x 15 | SS | LL | SP* ), SSLM73-16SP* ( 10 1/2 x 16 | SS | LL | SP* )

Price

149.00

Engine HP	Year/ Model	Application	Material	Prop Size	No. Blades	Propco Code	Nearest OEM Equivalent Part No.
7.5, 9.5hp 110 Model (thru hub exhaust)	68-85	LL	AL	9 x 9	2	M10-9P	48-47922A1

Engine HP	Year/ Model	Application	Material	Prop Size	No. Blades	Propco Code	Nearest OEM Equivalent Part No.
20hp (thru hub exhaust)	63-81	C	AL	9 7/8 x 13	3	M22-13SP*	48-33480A1
C	AL	9 7/8 x 11	3	M21-11P
C	AL	9 7/8 x 9	3	M23-9P	48-3348A1

Engine HP	Year/ Model	Application	Material	Prop Size	No. Blades	Propco Code	Nearest OEM Equivalent Part No.
18, 20, 25hp (thru hub exhaust)	80 thru	HL	AL	10 3/8 x 11	3	M25-11P	48-19638A40
C	AL	10 3/8 x 13	3	M26-13SP	48-19640A40
LL	AL	10 3/8 x 15	3	M27-15SP	48-19642A40
HL	SS	10 1/4 x 9	3	SSM24-9SP*	Stainless Steel
HL	SS	10 1/4 x 11	3	SSM25-11SP*	Stainless Steel
C	SS	10 x 13	3	SSM26-13SP*	Stainless Steel
LL	SS	10 x 15	3	SSM27-15SP*	Stainless Steel

Engine HP	Year/ Model	Application	Material	Prop Size	No. Blades	Propco Code	Nearest OEM Equivalent Part No.
35-50hp (thru hub exhaust) 11 tooth spline	62-69	C	AL	10 3/4 x 10	3	M35-10P	48-33774A1
C	AL	10 3/4 x 11	3	M36-11P	48-38098A1
C	AL	10 3/4 x 12	3	M37-12P	48-38094A1
C	AL	10 3/4 x 13	3	M38-13P	48-38090A1
LL	AL	10 3/4 x 15	3	M40-15P	48-38086A1

Engine HP	Year/ Model	Application	Material	Prop Size	No. Blades	Propco Code	Nearest OEM Equivalent Part No.
40-50hp (thru hub exhaust) 13 tooth spline	70-73	C	AL	10 3/4 x 10	3	M45-10P	48-56246A1
C	AL	10 3/4 x11	3	M46-11P	48-56244A1
C	AL	10 3/4 x 12	3	M47-12P	48-56240A1
C	AL	10 3/4 x 13	3	M48-13P	48-56236A1
LL	AL	10 3/4 x 15	3	M50-15P	48-56232A1
LL	AL	10 3/4 x 17	3	M51-17SP*

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