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Your cart is empty. This item for sale is a brand new shift interrupt switch and shift bracket assembly for Mercruiser Marine engines. This shift plate kit replaces the following Mercruiser switches that have been discontinued: 39670A28 39670A38 87-19752A3 87-19752A6 The models listed below have the Shift Interrupt Switch mounted to the top of the aluminum rocker cover, an alternate location will have to be selected for mounting the replacement Shift Plate Kit: MCM 120/140 S/N 6229718 thru 0C856558 MCM 3.0L/LX (Conventional / DIG.IGN. / EST IGN.) 0C856559 thru 0F603999 MCM 3.0LX 0F604000 thru 0K999999 The models listed below have the Shift Interrupt Switch mounted either on the Transom Plate or on a shift plate assembly attached at the top of the inner transom plate, with the hydraulic reverse lock valve assembly. An alternate location will have to be selected for mounting the replacement Shift Plate Kit. Also a new trim pump will be required updating from the old Prestolite trim pump to the new high pressure low flow Oil Dyne trim pump, part number 93247A 7. The new trim pump has the reverse lock valve in the pump and will replace both the pump and the reverse lock valve assembly, for replacement of the trim pump follow the instructions that come with the new trim pump:
120/140 Drive 2062141 thru 2791956 120/140 Drive 2062141 thru 3780849 120/140 Drive 3780850 thru 6225576 160 Drive 2065190 thru 2763441 160 Drive 2065190 thru 2763441 165 Drive 2763442 thru 3780849 470 Drive 4208730 thru 6225576 485 Drive 4893835 & Up 225-S (Ford) 3385721 thru 4166999 888 (Ford) 3108723 thru 3777489 888 (Ford) 3777490 thru 4887829 233 (Ford) 4173000 thru 4902304 228 4765100 thru 6218461 898 4762210 thru 6218461 260 4908850 thru 6218461
Debbie A
2025-08-07 10:19:41
Old shifter plate had a switch that went bad. Since I couldn't find a replacment switch, I ordered the entire plate. My boat uses a Mercruiser Alpha 1 Gen 1, so the replacement went very well. I didn't even need to readjust the cables. The shift-assist didn't work well with my Alpha 1 gen 1, so I left that part off.
Just a guy.
2025-06-04 13:56:47
Nice upgrade comes with every thing you need.
ron marineau
2025-05-31 12:29:25
A great quality prroduct fairly easy install
bxb
2025-05-27 12:48:05
I replaced 2 of these on my Sea Ray Sundancer. OEM Mercruiser parts are my preferance.
David Keymon
2025-05-24 13:01:10
It was exactly what I needed. Easy to install.
bargin hunter
2025-05-19 12:36:31
The part fit great for me and the instructions are actually pretty good. When you check for function, realize that the plate that momentarily interrupts the ignition circuit to allow easier shifting, does not operate without the pressure on the drive shaft from the propeller being in the water.
Customer
2025-05-12 14:14:20
Boat would not switch into neutral right away and I lived with it for 2 years which was dangerous at the dock. I had it to a mechanic and he didn’t know what the problem was. I did some research and this is exactly what you need if you are having this problem.
bob hemp
2025-04-28 15:31:48
this WILL NOT FIT a mercruiser 140 hp or any other one that has the original one mounted on the valve cover but you can mount it any other place you can find on the boat, i mounted mine just behind the engine on the transom
Debbie A
2025-04-23 13:26:43
Old shifter plate had a switch that went bad. Since I couldn't find a replacment switch, I ordered the entire plate. My boat uses a Mercruiser Alpha 1 Gen 1, so the replacement went very well. I didn't even need to readjust the cables. The shift-assist didn't work well with my Alpha 1 gen 1, so I left that part off.
Just a guy.
2025-04-11 10:05:40
Nice upgrade comes with every thing you need.
ron marineau
2025-03-15 21:11:33
A great quality prroduct fairly easy install
bxb
2025-03-09 18:43:27
I replaced 2 of these on my Sea Ray Sundancer. OEM Mercruiser parts are my preferance.
David Keymon
2025-01-09 17:34:21
It was exactly what I needed. Easy to install.
bargin hunter
2025-01-03 11:48:32
The part fit great for me and the instructions are actually pretty good. When you check for function, realize that the plate that momentarily interrupts the ignition circuit to allow easier shifting, does not operate without the pressure on the drive shaft from the propeller being in the water.
Customer
2024-12-23 14:31:44
Boat would not switch into neutral right away and I lived with it for 2 years which was dangerous at the dock. I had it to a mechanic and he didn’t know what the problem was. I did some research and this is exactly what you need if you are having this problem.
bob hemp
2024-12-05 16:59:01
this WILL NOT FIT a mercruiser 140 hp or any other one that has the original one mounted on the valve cover but you can mount it any other place you can find on the boat, i mounted mine just behind the engine on the transom
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