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Mercury
 Long Shaft Extension Kits
 Bay has expanded its line of kits to convert  Mercury outboards to long or extra long shaft.  Even though they cost a fraction of factory parts alone to convert standard motors to long shaft,  Bay extension kits are designed and manufactured of top quality materials to give lasting reliability to your outboard motor.

Using compatible alloys in both the housings, shafts, and studs, these kits are as corrosion resistant as the motor itself. All shaft and studs are of stainless steel and housings are cast of the same type of alloy as used in the motors.

Dealer pricing is available pending proper qualifications.

Model Serial Number Bay
Kit #
Length
THRUSTER ALL Models 100 6"
39 & 40 1655013 and up 106 5"
60 2 cyl. 1408611 and up 106 5"
6,8,9.9,15 A197112 and up 108 5"
6,8,9.9,15 D281000 and up 108 5"
6,8,9.9,15 2 stroke 1B015065 and up 108 5"
9.9, 15 4 stroke OG590000 and up 109 5"
9.9,15 4 stroke 0T895575 and up 109 5"
9.9,15 4 stroke 1B015065 and up 109 5"
110 2 cyl. 1470349 and up 106 5"
15 B292414 and up 108 5"
15 D281000 and up 108 5"
18 & 25 5705532 and up 225 5"
18 & 25 6416713 and up 226 5"
20 & 25 6443973 and up 226 5"
20 & 25 G044027 and up 226A 5"
20 & 25 B238464 and up 226 5"
25 2 stroke 1B207251 and up 226A 5"
30 2 cyl. G053314 and up 227 5"
25 & 30 4 stroke OG760300 and up 228 5"
25 Big Foot 4 stroke 0T425933 and up 228 5"
25 Big Foot 4 stroke 1B184725 and up 228 5"
35 2 cyl. 6445653 and up 406 4"
35 B110789 and up 408 5"
400 & 402 3043031 and up 406 4"
402 4564002 and up 406 4"
40 2 cyl. G053314 and up 227 5"
40 Classic C159200 and up 408 5"
40 2 cyl. 5556230 and up 406 4"
30, 40 4 stroke OG760300 and up 228 5"
30, 40 2 stroke OG760300 and up 227 5"
30,40 2 stroke 0T782393 and up 227 5"
30,40 2 stroke 1B180081 and up 227 5"
30-40 3 cyl. BIG FOOT 414 4"
45 5531630 and up 406 5"
45 B110789 and up 408 5"
500 2305101 and up 406 4"
500 4576237 and up 406 4"
50 4 cyl. 5531630 and up 406 4"
50 & 60 3 cyl. B122930 and up 406 4"
60 3 cyl. 2 stroke D000750 and up 411 5"
60 3 cyl. 2 stroke 0T455053 and up 411 5"
40, 45, 55, 60 3 cyl 411 5"
50 3 cyl 2 stroke 227 5"
50 3 cyl. 2 stroke 0T501925 and up 227 5"
50 3 cyl. 2 stroke 1B195987 and up 227 5"
50 3 cyl 4 stroke OG760300 and up 228 5"
50 4 stroke BIG FOOT OG and up 415 5"
40-50-60 4cyl 4 stroke OT and up 415 5"
50 4 cyl. 4 stroke 1B020914 and up 415 5"
60 4 stroke 1B144686 and up 415 5"
650 3 cyl. 3293184 and up 406 4"
650 4571652 and up 406 4"
60 3 cyl. 6428681 and up 406 4"
700 & 70 3 cyl. 4571652 and up 406 4"
75 6432901 and up 610 5"
70 3 cyl. A996142 and up 410 5"
75 2 stroke D283222 and up 414 5"
Model Serial Number Bay
Kit #
Length
75 B240451 and up 410 5"
75 4 stroke driveshaft not available for some models. 414S 5"
75 Optimax 1B027808 and up 414 5"
850 4 cyl. 3493913 and up 609 5"
850 3865695 and up 610 5"
80 5582562 and up 610 5"
80 3 cyl. A996142 and up 410 5"
90 5594657 and up 610 5"
90 3 cyl. A996142 and up 410 5"
90 3 cyl. 2 stroke D283222 and up 414 5"
90 4 stroke driveshaft not available for some models. 414S 5"
90 Optimax 1B027808 and up 414 5"
100 4 cyl. B209468 and up 410 5"
100 4 cyl. D283222 and up 414 5"
100 4 stroke driveshaft not available for some models. 414S 5"
1150 3525441 and up 609 5"
1150 & 115 3761035 and up 610 5"
115 B209468 and up 410 5"
115 4 stroke driveshaft not available for some models. 414S 5"
115 4 cyl. D283222 and up 414 5"
115 Optimax 1B027808 and up 414 5"
125 4 cyl. D283222 and up 414 5"
1400 3293234 and up 609 5"
140 4865678 and up 610 5"
1500 3502806 and up 609 5"
1500 3751850 and up 610 5"
150 V-6 20" 4868998 and up 611 5"
150 V-6 25" 6042946 and up 612 5"
150 V-6 20" 6443213 and up 611 5"
150 V-6 25" 6443213 and up 612 5"
150 XR2 V-6 6616991 and up 611 5"
Marathon Magnum 25" 612 5"
135 \ 150 20" A904646 and up 611 5"
XR2 \ 135XD 25" 612 5"
XR4 Magnum II 20" B242885 and up 611 5"
XR4 Magnum 175 25" 611 5"
135 / 150 20" C100861 and up 611 5"
175 / 200 25" C100861 and up 611A 5"
135 / 150 20 " C239553 and up 611 5"
135 / 150 XR6 DO82000 and up 611 5"
135 / 150 XR6 OG303046 and up 611 5"
135 20" Optimax 1B073074 and up 611 5"
150 20" Optimax 1B106925 and up 611 5"
175 V-6 20" 6618751 and up 611 5"
175 V-6 25" 6618751 and up 612 5"
175 20" Optimax 0T908388 and up 611 5"
200 V-6 20" 536918 and up 611 5"
200 V-6 25" 5363918 and up 612 5"
200 / 200 XR1 V-6 C100861 and up 611 5"
175 / 200 XR6 OG303046 and up 611 5"
200 Optimax 0T667124 and up 613 5"
220 & 225 V-6 5628028 and up 611 5"
225 & 250 1994-98 by serial number 611 5"
3.0L 1999 and up by serial 613 5"
200, 225 Optimax & 200 DFI 0G283148 and up 613 5"
200 2.5L EFI 0T235136 and up 611 5"
225 EFI 4 stroke 2005 2006 Yamaha Powerhead 1B264867 and up 805 5"
225 EFI 2004 0T944708 and up 613 5"
250 2002 613 5"
Verado 135,150,175,200,225,250,275 614S 5"
300 hp OG981393+up 613 5"
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