


CDI STATOR COIL MERCURY 20 / 40 / 75 / 110 HP '70-'75 - 174-3996, 336-3996A4
Marsoni
M251S
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CDI STATOR COIL MERCURY 20 / 40 / 75 / 110 HP '70-'75 - 174-3996, 336-3996A4ITEM#: 174 3996 STATOR COIL MERCURY 20 40 75 110 HP 70 75 OEM#: 336 3962A4, 336 3996A4, 339 3996A7 2 wire BRAND: CDI ELECTRONICS FITMENTS: Make Model Year(s) Mercury ALL Mercury 2 Cyl 2. 565 Bore Cross Flow 20 1970 Mercury 2 Cyl 2. 875 Bore Cross Flow 40 1970 NOTE: 2 WIRE
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★★★★★ 5
Great product!
Color: Yellow, Size: 5.5" Lift, Color: Yellow, Size: 5.5" Lift
This is the best product to own if you need to change a tire on a tandem boat trailer. We have never changed a tire on our trailer before so we did some research and discovered this product. It was the best investment made. Changing the tire was fast and easy.
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Reviewed in the United States on June 8, 2026
★★★★★ 4
Seems to be well made
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Husband says it seems to be well made. He hasn’t had to use it yet.
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Reviewed in the United States on January 29, 2026
★★★★★ 5
An RV Must Have
Color: Yellow, Size: 5.5" Lift
We purchased this to get ready for our latest camping trip across the southwest states. Fortunately, we did not need to use it for our travel trailer during our recent trip. However we did use it to assist another couple who had a tire on their trailer that was totally shredded. He did not have any kind of Jack to be able to change his tire. This worked amazingly well, so much so that he asked for the link so he could order one from Amazon too.
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Reviewed in the United States on June 2, 2026
★★★★★ 5
Effective Tool
Color: Yellow, Size: 5.5" Lift
Go try to use your standard car jack to lift your two axle travel trailer and see why this simple ramp just works. I have used this ramp for changing trailer tires, packing bearings, and changing brakes. It's effective in lifting one tire even though the suspension is articulating. It is also much more stable than a hydraulic jack under an axle. I highly recommend this ramp for travel trailer use.
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Reviewed in the United States on January 31, 2026
★★★★★ 5
Don’t leave home without it!
Color: Yellow, Size: 5.5" Lift
Excellent product. Light weight. Very durable material. Sleek design for easy storage. Perfect spacing for tandem axle trailer tire changes. Excellent value for the money.
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Reviewed in the United States on June 1, 2026