MICHIGAN WHEEL SPC-188 Superprop Prop Mi CHRYSLER75-140HP K626

( Brand: Michigan Wheel ), ( Manufacturer Part Number: SPC-188 ), ( Part Type: Aluminum Prop ), ( Propeller Rotation: Standard )

Review MICHIGAN WHEEL Mi Superprop Aluminum Prop Chrysler75-140hp fits FORCE 2013–2025

The **Michigan Wheel SPC-188 13x25 SuperProp Propeller** is a meticulously engineered, high-performance propeller designed specifically for the Ford Force and Chrysler applications from the mid-1970s, particularly tailored for engines producing between **75 and 140 horsepower** under the **K626** designation. Crafted from premium-grade aluminum alloy, this propeller combines durability with aerodynamic precision, ensuring optimal efficiency and reliability for both cruising and spirited driving. The **13-inch diameter** and **25-inch pitch** dimensions strike an ideal balance, allowing for smooth acceleration, improved fuel economy, and reduced strain on the engine while maintaining strong low-end torque for effortless launches from a stop. The **SuperProp series** features a refined blade design with a **low-drag profile**, minimizing turbulence and maximizing thrust, which is particularly beneficial for vehicles equipped with smaller, high-revving engines common in classic muscle cars and performance cruisers. The propeller s **balanced construction** and **precision machining** eliminate vibrations, ensuring a quiet and comfortable ride even at higher speeds. Whether installed on a restored Ford Force or a modified Chrysler model, this propeller enhances both the driving experience and the vehicle s overall performance, making it an excellent choice for enthusiasts seeking a blend of classic styling and modern efficiency.

### Pros and Cons of buying a Michigan Wheel SPC-188 13x25 SuperProp Propeller for a Force Chrysler 75-140HP K626

1. **Optimized for Performance** The SPC-188 is designed for high-performance applications, making it well-suited for a K626 engine, which is known for producing strong torque and horsepower. The 13x25 pitch is likely to provide a balance between acceleration and top-end speed, which is ideal for a boat in the 75-140HP range.

2. **Durability and Quality** Michigan Wheel is a well-regarded brand in the marine propeller industry, known for producing high-quality, durable propellers. The SuperProp line is particularly robust, designed to handle the stresses of high-performance engines without excessive wear.

3. **Efficient Power Transfer** A properly matched propeller can maximize the engine s power output by reducing slippage and improving thrust. The SPC-188 s design may offer better efficiency than stock or lower-quality props, leading to improved acceleration and fuel economy.

4. **Compatibility with K626 Engines** The K626 is a popular outboard engine, and Michigan Wheel often tailors its propellers to work well with these engines. The 13x25 pitch is likely to be a common recommendation for this power range, ensuring smoother operation and better handling.

5. **Reduced Cavitation and Vibration** High-quality propellers like the SPC-188 are engineered to minimize cavitation (the formation of vapor bubbles that can damage the propeller and reduce performance) and vibration, which can extend the life of both the propeller and the engine.

6. **Aesthetic Appeal** The SuperProp line has a distinctive, aggressive design that can enhance the appearance of the boat, which may be appealing to owners who prioritize both performance and looks.

---

1. **Cost** Michigan Wheel propellers are premium products, and the SPC-188 will likely be more expensive than standard or aftermarket alternatives. For a boat in the 75-140HP range, the cost may be justified, but it s still a significant investment compared to lower-end props.

2. **Potential Overkill for Lower HP Ends** While the SPC-188 is well-suited for the upper end of the 75-140HP range (closer to 120-140HP), it may feel overly aggressive or inefficient for a boat running closer to 75HP. At lower power levels, the propeller might struggle to find its optimal operating range, leading to reduced efficiency or even excessive slippage.

3. **Maintenance and Handling** A high-performance propeller like this can make the boat more sensitive to load and trim. If the boat isn t properly trimmed or the engine isn t tuned correctly, the SPC-188 could lead to rough handling, excessive wake, or even difficulty in maneuvering at lower speeds.

4. **Potential for Damage from Debris** While durable, high-performance propellers are more susceptible to damage from debris (e.g., rocks, shells, or docks) due to their aggressive blade design. This could lead to more frequent repairs or replacements compared to a more forgiving propeller.

5. **Learning Curve for Tuning** Switching to a high-performance propeller like the SPC-188 may require adjustments to the boat s trim, throttle response, and even gearing (if applicable). Owners unfamiliar with tuning their setup may experience a period of trial and error before achieving optimal performance.

6. **Weight** Premium propellers are often heavier than standard options. While the SPC-188 is likely not excessively heavy, the added weight could slightly impact the boat s handling or require minor adjustments to balance.

---

The Michigan Wheel SPC-188 13x25 SuperProp propeller is an excellent choice for a Force Chrysler K626 engine in the **120-140HP range**, where it will deliver strong acceleration, efficient power transfer, and durability. For boats closer to the **75-100HP end of the spectrum**, the propeller may feel too aggressive, leading to reduced efficiency or handling issues. If the engine is consistently running in the higher end of the 75-140HP range (e.g., regularly producing 120 HP), the SPC-188 is a worthwhile investment. However, if the boat is more often operated at lower power levels, a slightly less aggressive propeller (e.g., a 13x24 or 13x23) might be a better fit to avoid wasted power and improve overall efficiency.

---

- **If your K626 consistently runs at or above 120HP:** The SPC-188 13x25 is an outstanding choice. It will provide the best balance of acceleration, top-end speed, and durability for your setup. Pair it with proper trim tabs or a trim system to ensure optimal performance.

- **If your K626 typically runs between 75-110HP:** Consider a slightly less aggressive propeller, such as a **13x24 or 13x23 SuperProp**, to avoid wasted power and improve fuel efficiency. Alternatively, a high-quality but slightly less expensive propeller from another brand (e.g., Mercury, Volvo Penta, or a reputable aftermarket option) could offer a good middle ground.

- **If you re unsure about your engine s consistent power output:** Test the propeller for a season and monitor performance. If you notice excessive slippage, rough handling, or poor acceleration, you may need to adjust the propeller size or trim settings.

Ultimately, the SPC-188 is a top-tier propeller for high-performance applications, but like any specialized component, its benefits are maximized when matched to the right engine and operating conditions. Always ensure the propeller is properly installed and that the boat is trimmed correctly to avoid unnecessary wear or performance issues.

Details:

1983- 1984 100HP. Cant Find What You're Looking For. 1980 - 1984 85HP STD AND CHARGER. Size - 13 x 25, Part Number SPC-188 072111, Shaft 15 Tooth, Rotation Right Hand, Material Aluminum, Of Blades 3, Condition Tested, Like new, Application, FORCE CHRYSLER US MARINE 75 140HP SINGLE EXHAUST NON-THRU HUB AND TOOTH SPLINE, 75HP STD CHARGER.

1978 - 1989 90HP.

part #: spc188 price

• $150.00

specifications propboapar:

• for models: Force
• for years: 2013-2025
• brand: Michigan Wheel
• mpn: Spc-188
• part type: Aluminum Prop
• propeller rotation: Standard

seller propboapar:

• # reviews: 4016
• rating: 100.0%
• city: Grand Rapids, Michigan

returns propboapar:

• paid by: Buyer
• time: 30 Days
• policy: Returns Accepted

payments propboapar:

• other
• wallet: Apple-pay
• credit card: Diners-club

shipping propboapar:

• type: Fixed
• cost: $4.00
• class: Economy
• service: Economy
• transit: 2-6 Days

general propboapar:

• condition: Used
• Parts Accessories > Boat Parts > Propellers

offer propboapar:

• quantity: 1
• best offers: True
• availability: In Stock
• started: April 7, 2026
• options: Ship-to-home
• sold: 0

Michigan Wheel SPC-188 Is Similar To:

• 174983 Michigan Wheel Johnson Evinrude Propeller Splines (41.1% similar) It will do the job well. 9HP and 15HP is in very good condition. This Johnson eventide propeller it does have some scratches in the paint from ordinary use...(February 11th, 2019)
• 0 14984 01280 5 Michigan Wheel Vortex Hub Kit Honda Mercury Yamaha (27.1% similar) I do not have any junk. See photograph of application chart. Fits eventide Johnson, mercury, Suzuki, force and Yamaha with correct hub. Includes hub kit 113, fits 13 tooth spline Honda bf and 50A 1995 newer...(March 3rd, 2018)
• 0110008 Michigan Prop Englund Marine Outboard Boat Freeshipp (26.8% similar) Estate find, has been used, as photos show it is in good shape, no cracks or breaks visible, some very small and I mean wear nicks, welds repairs. Pictures show exactly what you are getting, as found. 5/1 9 r outboard boat prop free shipping. I only ship to the USA...(July 3rd, 2018)
• 011001 Michigan Propellers Wheel Match 014984000017 (30% similar) ...(December 31st, 2017)
• 011002 Michigan Match Prop Johnson (30.9% similar) 5l 120 hp 3l - thru: 3 blade aluminum propeller factory built-in hub diameter: pleasure NEWER70 Cl. Naval brass spindle with rubber cushioned hub absorbs impact hp 2 Cl. Commercial hp pontoon series NEWER70 3 Cl pitch: 15''- rotation: right 13 tooth spline thru-hub exhaust Johnson eventide outboards...(August 15th, 2017)
• 011003-13.25x17 Michigan Wheel Boat Propellor (34.3% similar) Peeling paint. One small nick. Overseas shipping through global program...(November 14th, 2017)
• 011004 Michigan 3 Bladed Aluminum (34.4% similar) ...(October 8th, 2017)
• 011005 Michigan Wheel Nos Omc (30.5% similar) No box, may have some very minor shelf wear from being out of the but damage or issues, never used installed. All custom forms are accurate. High gloss aluminum, 12. P/N replaces MC number new old stock from dealer close out. 75 by 21 pitch, fixed rubber hub, as pictured...(February 6th, 2018)
• 011006 Michigan Wheel Evinrude 11006 (36.8% similar) Prop has been sitting around for awhile and shelf wear. Buyer should verify before buying. Unused Michigan Wheel propeller 11006...(February 4th, 2018)
• 011007 177134 Oem 177134 Oem Michigan Wheel (21.2% similar) NEWER120 hp liter NEWER185 NEWER275. Eventide Johnson MC cobra 300HP 15 x oem NEWER150 hp e-etc newer also fits many stern drive and also 225 NEWER2 NEWER175 NEWER115 NEWER140 eventide, horsepower v6 engines thru-hub exhaust tooth SPLINE90 NEWER100 commercial NEWER155 NEWER235...(November 18th, 2017)
• 011008 Michigan Wheel Vintage Omc (31.1% similar) ...(February 8th, 2018)