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Comprop™ 4-Blade Performance Composite Propellers

   

Sale price: Clearance price: Starting at: Sale starting at: Clearance starting at: Reg. price:

Description
Model
Other specs Quantity Price & availability

B Model M4021

M4021

Diameter & Pitch:
4" X 10.5" X 11"

Engine Mfg:
Force/Chrysler
  • Used by many OEMs
  • Durable composite material resists dings, folds and blunting
  • Recommended for up to 5.0L V8 or 225 hp outboard/3,000-lb. boats

These 4-blade props are used as original equipment by many boat manufacturers. Durable--composite material resists dings, folds and blunting. Recommended as a primary prop up to 5.OL V8 or 225hp outboard/3,000-lb. boats. If you have any questions, try www.comprop.com. FAQ and technical illustrations for most applications are available.

A. 15 tooth; 4.5" hub
Mercruiser Sterndrives

  • '65 thru: all hp
    Mercury & Mariner
  • '78 thru: 135-150*-175-200-225hp (*4.5" hub)
  • '91 thru: XRi150-175hp
    Yamaha O/B & Sterndrives
  • '78 thru: 150-ProV150-200-225hp
  • '78-'79: 175 hp
  • '90 thru: All hp sterndrives
  • Remove rear splined spacer

    B. 15 tooth; 4" hub
    Evinrude & Johnson

  • '03 thru: 90-115-140hp 4 stroke
    Nissan/Tohatsu
  • '87 thru: 90 thru 140hp Remove rear spacer for proper fit
    Mercury & Mariner
  • '65 thru:70-75-80-90-110-115-125-135-140-150hp inline 4/6
  • '87 thru: 70-80-90hp
  • '87 thru: 75-90hp 3 cyl
  • '88 thru: XR4-XR6 150*hp (*4" hub only)
  • '88 thru: Magnum II, III, 150*hp (*4" hub only)
  • '95 thru: 60 hp
  • Thrust hub 13191A1 or 12-835467-1
    Force/Chrysler
  • '95 thru: 90-120-150hp
  • '99 thru: 75hp
    Suzuki
  • '01 thru: DF90-DF115-DF140 4 stroke
    Yamaha O/B & Sterndrives
  • '84 thru: T50-60-70-85-90-115-130-140hp
  • '94 thru: 75hp
  • '99 thru: FS80-FS100-FS115 4 stroke
    Honda
  • '95 thru: 75 thru 130hp

    C. 13 tooth; 3.25" hub
    Evinrude & Johnson

  • '99 thru: 40-50hp 4 stroke
  • Ask Comprop for required spacer
    Nissan/Tohatsu
  • '84 thru: 35B-40hp
  • '92 thru: 40D-50Dhp ('91 50D only)
    Mercury & Mariner
  • '70-'76: 400-402-500/40-50hp
  • '73-'83: 70hp
  • '73-'94: 60hp
  • '73 thru: 35-40-45-48-50-65hp
  • '94 thru: 30hp
  • Thrust hub 73345A1
    Force/Chrysler
  • '91-'95: 70hp
  • '95-'98: 40-50hp
  • '96-'98: 75hp
    Suzuki
  • '83 thru: 40-50-55-60-65hp
  • '87-'90: 35hp
  • '99 thru: DF40-DF50 4-stroke
  • Ask Comprop for required spacer
    Yamaha O/B & Sterndrives
  • '83 thru: 40-48-50-(not T50)-55-60hp
  • '95 thru: 40-50hp 4 stroke
    Honda
  • '91 thru: 35 thru 50hp Remove rear splined spacer

    D. 10 tooth; 3" hub
    Mercury & Mariner

  • '80 thru: 18-20-25hp (Merc)
  • '85 thru: 20-25hp (Mariner)
  • '86 thru: 20hp (Merc)
  • '99 thru: 9.9-15hp (Big Foot 4 Stroke)
    Force/Chrysler
  • '95-'98: 25hp 3 cyl

    E. 10 tooth; 3" hub
    Mercury & Mariner

  • '80-'84: 25hp
  • '76-'79: 28hp
  • '79-'90: 30hp
    Yamaha O/B & Sterndrives
  • '79 thru: 25-28-30-C30hp
  • '01 thru: 25-30hp 4 stroke

    F. 15 tooth; 4.5" hub
    Evinrude & Johnson

  • '76 thru: 150-155c-175-185-200-225 hp-2.6L V6; 3.6L V8
  • '84 thru: 100c V4
  • '85 thru: 120-140hp
  • '82 thru: 2.0-2.5-2.6-2.7-3.0L V6 Sea Drive; 3.6-4.0L V8 Sea Drive
  • '95 thru: 90-115-130 V4
    OMC Cobra Sterndrives
  • '78-'93: 120 thru 275hp 4/6/8 cyl
  • '78-'93: 3.0 thru 7.5L 4/V6/V8
    Suzuki
  • '86 thru: V6-150-175-200 hp
  • Ask for Comprop Suzuki spacer 4.5" hub

    G. 13 tooth; 4" hub
    Evinrude & Johnson

  • '68 thru: 45-50*-55*-60*-70-75hp/3 cyl (*4" hub)
  • '69 thru: 80-85-88-90-100-110-115-120-125-135-140hp V4
  • '83 thru: 1.6-1.8L V4 Sea Drive
    OMC Cobra Sterndrives
  • '78 thru: 120 thru 140 hp 4 cyl 2.3-3.0L 4 cyl
  • '82 thru: 1.6L V4
  • '86 thru: 1.8L V4
    Suzuki
  • '78 thru: 75-85-90-100-115-140hp V4

    H. 15 tooth; 4" hub
    Force/Chrysler

  • '77-'89: 70-140hp
  • '88-'89: 85*-125*hp
  • '88 thru: L-Drive, all hp

    I. 14 tooth; 2.75" hub
    Evinrude & Johnson

  • '76 thru: 20-25-30-35 hp

    Dimensions in chart below are diameter x pitch

    *One-piece lower unit only - may require Force rear spacer 523282 and exhaust mount F74116. '88/'89 need to remove zinc anode for proper fit.

  • Rated 4.2 out of 5 by 31 reviewers.
    Rated 4 out of 5 by looks good for the price Just recieved a comprop and got it installed on my I/O. Fit perfectly with no problems except for the 4 inches of snow on the weekend. Will have to wait till spring to try it out. October 23, 2012
    Rated 4 out of 5 by good replacement for the money prop fit exactly as it should with no problems love the warranty September 25, 2012
    Rated 5 out of 5 by Great Price per dollar Installed this prop on a Lowe 175 with a Johnson 25 hp.Boat goes on plane almost instantly.Quality seems good, I don't think this prop will take any abuse without failing. September 13, 2012
    Rated 5 out of 5 by Great Budget Propeller!! I replaced a nicked/beat up 3 blade stainless steel prop on a recently purchased boat. The chart on BassPro had some errors, such as listing the part number I needed under the wrong manufacturer. The cast in splines eliminate the worry of spinning a rubber bushing and the overall fit is excellent. I went with a O4347l 4x12.8x17 behind a 140 hp Evinrude and it puts the boat on plane much quicker with a minimal loss of top end. 40 mph is plenty for my bass boat!! The engine is also at a good rpm to keep from fouling the plugs when putzing around at 5 mph. July 2, 2012
    2 3 4 5 ... 8 next>>
    21 Questions | 29 Answers

    Outdoor Answers

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    2 years, 2 months ago
    by
     - Wilburton OK
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    Staff Answer
    A: 
    Depending on the diameter of your prop you could use either the D4021 or the E4023 for the 25MP 2007 Mercury. The E4023 diameter is 10", the D4021 is 10.5"
    1 year, 11 months ago
    by
     - Springfield, MO
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    2 years, 2 months ago
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    Staff Answer
    A: 
    Please contact customer service at 1-800-227-7776. We will also need the year and the pitch and diameter imprinted in your current propeller or on the motor hub.
    1 year, 11 months ago
    by
     - Springfield, MO
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    Q: 
    1 answer

    Which prop?

    Details: 
    Have a 2008 Mercury 50hp, 2 stroke, 14pitch, 3 blade. Can I replace with 4 blade comprop and if so what prop do I need? Thanks for your assistance.
    Tom
    2 years, 3 months ago
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    Staff Answer
    A: 
    The 3 blade prop can be replaced with a 4 blade. The correct diameter is needed as well as the year, hp and desired pitch to get the correct prop.
    1 year, 11 months ago
    by
     - Springfield, MO
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    Details: 
    Optimax 2 Stroke 115 horsepower. Existing Prop 3 blade 13" diameter 23 pitch. Recommended WOT 5705 rpm. OEM # 77350A45P23 . 19-0 Stratos Bass Boat.
    What would you recommend ? I would prefer the 4 blade.
    Thank You
    2 years, 3 months ago
    by
     - Greenville, SC
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    Staff Answer
    A: 
    Generally decrease pitch by 1 when changing from a 3 blade to a 4 blade. Please see 38-524-310-51. Thank you!
    1 year, 11 months ago
    by
     - Springfield, MO
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    2 years, 10 months ago
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    Top 250 Contributor
    Top 250 Contributor
    A: 
    If your current prop is a 3 blade get go down to A 15 !

    Your gonna love it !
    2 years, 4 months ago
    by
     - Sothern WV & OBX ,NC
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    2 years, 10 months ago
    by
     - houston texas
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    Top 250 Contributor
    Top 250 Contributor
    A: 
    Higher pitch is faster !
    2 years, 4 months ago
    by
     - Sothern WV & OBX ,NC
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    2 years, 10 months ago
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    Top 250 Contributor
    Top 250 Contributor
    A: 
    whatever the chart says
    2 years, 4 months ago
    by
     - Sothern WV & OBX ,NC
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    Staff Answer
    A: 
    For a 1987 50 HP Mariner try item number 38-560-968-00 or 38-546-584-00.
    Also, you will need to diamter and pitch to find the best prop
    2 years, 10 months ago
    by
     - springfield, mo
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    Details: 
    4.3 liter Mercury I.O. which composite prop would work best?
    2 years, 11 months ago
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    Top 250 Contributor
    Top 250 Contributor
    A: 
    19 pitch
    2 years, 4 months ago
    by
     - Sothern WV & OBX ,NC
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    Staff Answer
    A: 
    To find the correct prop you will need to know the HP, Year, and Diameter. The pitch would be 21.
    2 years, 11 months ago
    by
     - springfield, mo
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    3 years ago
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    A: 
    depends on what you are doing with the motor. what size boat the motor is on and what you want to do with it ie, fish, ski, joy ride. in most cases, you would not want to use smaller than a 15 pitch or higher than a 19 pitch. the smaller the pitch the more load and torque you can have but less speed. The higher the pitch, you get more speed, but less pulling ability.
    3 years ago
    by
     - Deep East Texas
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    Staff Answer
    A: 
    You will need to know the year, diamter and pitch to find the best prop.
    3 years ago
    by
     - springfield, mo
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    Details: 
    Spacers, bearings, washer, nut and cotter pin?
    3 years, 3 months ago
    by
     - North Dakota
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    A: 
    No this comes as a prop only.You have to use your old hardware.
    1 year, 9 months ago
    by
     - Peoria,IL
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    A: 
    No, the prop/hub are one piece. I had to remove my existing splined spacers (front and back) and used my existing flat washer, castle nut and cotter pin.
    3 years, 2 months ago
    by
     - Sebring, Florida
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    Top 250 Contributor
    Top 250 Contributor
    A: 
    THIS HUB IN PROP REQUIRES NO ADAPTER !

    IF YOUR USING A PROP WITH INTERCHANGEABLE HUB ADAPTER NOW , YOU MAY NEED A THRUST WASHER !
    3 years, 2 months ago
    by
     - Sothern WV & OBX ,NC
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    2 3 next>>
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