OMC Sterndrive/Cobra Prop Nut Kits

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HP/Model/Liter

Year

(1978 to 1992)

HP/Model/Liter

Year

Sierra Prop Nut Kit

Mallory Prop Nut Kit

1201978-198118-3716 9-73952
1401978-198118-3716 9-73952
1851978-198018-3715 9-73953
2001979-198118-3715 9-73953
225197818-3715 9-73953
230197918-3715 9-73953
240197818-3715 9-73953
2601979-198118-3715 9-73953
2621987-198918-3715 9-73953
3501988-199118-3715 9-73953
351199218-3715 9-73953
4541990-199218-3715 9-73953
4601989-199018-3715 9-73953
502199218-3715 9-73953
2.31987-199018-3716 9-73952
2.51982-198618-3716 9-73952
31982-198918-3716 9-73952
31990-199218-3715 9-73953
3.81981-198518-3715 9-73953
4.31985-199218-3715 9-73953
51982-199218-3715 9-73953
5.71979-199218-3715 9-73953
5.81989-199218-3715 9-73953
7.5198718-3715 9-73953

HP/Model/Liter

Year

Sierra Prop Nut Kit

Mallory Prop Nut Kit

Refine Parts List
HP/Model/Liter

Year

(1978 to 1992)
Blowout
Save 23%-25% Off.
Propeller Nut Kit - Sierra
Sale-a-palooza Price: $17.99
Save: $6.17
(25% Off $24.16)
Part # 18-3715 ValueShip™ Eligible
Kit Contains:
    (1) 18-3708 Prop Nut - replaces O.E.# 398042
    (1) 18-3741 Cotter Pin - replaces O.E.# 309955
    (1) 18-4231 Prop Spacer - replaces O.E.#320570

Propeller Nut Kit - Sierra
Your Price: $19.13
Save: $7.70
(28% Off $26.83)
Part # 18-3715D ValueShip™ Eligible
SHIPS TODAY!* if ordered in 12 hrs 51 mins.
No Reviews | Write Review
Kit Contains:
    (1) 18-3708 Prop Nut - replaces O.E.# 398042
    (1) 18-3741 Cotter Pin - replaces O.E.# 309955
    (1) 18-4231 Prop Spacer - replaces O.E.#320570

Propeller Nut Kit - Sierra
Sale-a-palooza Price: $7.19
Save: $2.36
(24% Off $9.55)
Part # 18-3716 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 12 hrs 51 mins. Replaces OEM part #
  • OMC 175267
Kit Contains:
    (1) 18-3705 Prop Nut - replaces O.E.# 314503
    (1) 18-3742 Cotter Pin - replaces O.E.# 314502
    (1) 18-4228 Prop Spacer - replaces O.E.# 315810

Propeller Nut Kit for Johnson/Evinrude, OMC Sterndrive/Cobra 175267, GLM 22350 22340

Propeller Nut Kit - Sierra
Your Price: $7.67
Save: $2.96
(27% Off $10.63)
Part # 18-3716D ValueShip™ Eligible
SHIPS TODAY!* if ordered in 12 hrs 51 mins.
No Reviews | Write Review
Replaces OEM part #
  • OMC 175267
Kit Contains:
    (1) 18-3705 Prop Nut - replaces O.E.# 314503
    (1) 18-3742 Cotter Pin - replaces O.E.# 314502
    (1) 18-4228 Prop Spacer - replaces O.E.# 315810

Propeller Nut Kit - Sierra
Sale-a-palooza Price: $15.29
Save: $4.84
(24% Off $20.13)
Part # 18-3733 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 12 hrs 51 mins. Replaces OEM part #
  • VOLVO 3850984-0

    For: OMC - SX Cobra


  • Contains:
    18-4194 Spacer
    18-3708-1 Nut & Keeper
    18-3741 Cotter Pin
Propeller Nut Kit - Sierra
Sale-a-palooza Price: $17.09
Save: $5.28
(23% Off $22.37)
Part # 18-3733D ValueShip™ Eligible
SHIPS TODAY!* if ordered in 12 hrs 51 mins. Replaces OEM part #
  • VOLVO 3850984-0

    For: OMC - SX Cobra


  • Contains:
    18-4194 Spacer
    18-3708-1 Nut & Keeper
    18-3741 Cotter Pin
Mallory Prop Nut Kit 9-73953
Your Price: $19.99 (Out of stock)
Save: $4.17
(17% Off $24.16)
Part # 9-73953 ValueShip™ Eligible
No Reviews | Write Review
Replaces Original Equipment Manufacturer(OEM):Johnson/Evinrude
Replaces Original Equipment Manufacturer # (OEM #):175266
Fits Application:150-300
Mallory Prop Nut Kit 9-73952
Your Price: $7.99 (Out of stock)
Save: $1.56
(16% Off $9.55)
Part # 9-73952 ValueShip™ Eligible
No Reviews | Write Review
Replaces Original Equipment Manufacturer(OEM):Johnson/Evinrude
Replaces Original Equipment Manufacturer # (OEM #):175267
Fits Application:40-140
Sierra
Average Customer Review for Propeller Nut Kit - Sierra
Based On 1 Review | Write Review
SS Propellor
by Donnie from Seaside, Oregon on July 26, 2013
I have always used aluminum propellers but had issues with my takeoff speed. My prop would cavitate and it would take forever to get up on plane and go anywhere. I tried the 4 blade Stainless Steel prop and if my boat had tires it would spin them. My takeoff is quick and I am gone in a fraction of the time I use to take with the aluminum prop. I am very satisfied and it was well worth the price.
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Average Customer Review for Propeller Nut Kit - Sierra
Based On 16 Reviews | Write Review
works well, i think
by John from Temple, Texas on May 08, 2012
i only have one problem with this and that is the plastic washer. With the prop i recieved, there is not enough room for the washer and still get the nut tight enough for the cotter pin.
(1 of 1 people found this review helpful)
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nut kit
by Rich from San Antonio, Texas on September 15, 2013
Worked fine
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No Problems
by Dan from Bonneau, South Carolina on September 13, 2013
Fit the shaft and the motor exactly like it was supposed to. No problem, quick shipment.
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Good quality that I have come to expect from Sierra.
by Ray from Sequim, Washington on August 24, 2013
This prop nut kit is a good deal if you need a new castle nut, spacer and cotter pin. I basically wanted to start over fresh and all new with my new prop.
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propellor nut kit
by Eddie from Lake Charles, Louisiana on July 07, 2013
Products work like they are supposed to.
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kit
by John from Moses Lake, Washington on June 12, 2013
everything fit speedy del
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Prop Nut Kit
by Daniel from Phoenix, Arizona on June 06, 2013
It fits. It works. Decent price. Shipped quickly!
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Excellent Quality
by Andrew from Ashtabula, Ohio on August 16, 2012
Good, better than factory.
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perfect fit
by Seth from Concord, California on July 29, 2012
Title says it all!
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nut kit
by Mack from Spartanburg, South Carolina on June 19, 2012
works great
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accesseries for Prop
by Jerry from Weatherford, Texas on February 28, 2012
I purchased a prop and was not sure I needed any other parts. But, I order the Prop Nut Kit anyway! My sales person, Kit Kimball, was extremely helpful and I was delighted that she went the extra mile to answer my question and get info form the prop manufacture while I was waiting on hold. The attitude and help in my fustration was wonderful. Thanks for being there when I needed you!
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wrong product
by Mike from Palestine, Texas on November 08, 2011
ordered wrong product. did not know til after I had package tore open and they would not take back, according to paperwork.
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wrong diameter, not a good experience
by W. from McDonough, Georgia on November 01, 2011
I ordered the above kit, using the model year and model number off the motor plate. The nut and thrust washer are for a larger diameter prop shaft. I called I Boats and was given an 800 # to call for the correct one. That source claims to not carry parts for the 1983 model year. I should have been told that at the point of ordering. No idea where to turn now.
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nut kit
by Ron from alexis, Illinois on September 06, 2011
great product
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prop kit
by Norman from Pompano, Florida on August 31, 2011
works great.
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MrCrabs opin
by Douglas from Simpson, Illinois on July 18, 2011
product as advertised
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Average Customer Review for Propeller Nut Kit - Sierra
Based On 7 Reviews | Write Review
Prop Nut Kit
by Joe from North Olmsted, Ohio on May 25, 2014
The product was just as described and the service and timely shipment were excellent. I would recommend using iboats to anyone.
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prop kit
by Robert from San Antonio, Texas on March 18, 2014
Just as advertised and shipment came promptly very satisfied
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bell
by William from Sylvan Lake, Alberta on June 24, 2013
Kit did not have the flat washer required for complete installation. Kit was stated to be for Volvo SX stern drive, but one washer missing.
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Nut kit
by Duane from Atlantic Highlands, New Jersey on July 10, 2012
perfect and easy to order
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Volvo Penta Nut Kit
by Peter from Merced, California on July 08, 2012
All fits perfectly. Easy to install.
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Prop Nut
by Theron from Winona, Minnesota on September 17, 2011
Everything perfect
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Good quality - perfect fit
by Harold from Clearwater, Florida on June 18, 2011
This kit is a must if you take off an old prop. Plus, I'd recommend carrying a spare kit on the boat in case of an emergency - keep a spare prop with you also.
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Average Customer Review for Propeller Nut Kit - Sierra
Based On 1 Review | Write Review
Volvo 4.3L prop nut kit
by John from Apple Valley, Minnesota on July 14, 2012
Has all you need for an emergency prop replacement if original parts end up in the lake!
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