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Mercury Snowmobile
Twister Registry

Additions, twisterregistry@gmail.com
VIN(s), Year/Model, & Province or State location

ID Model Help Click Here

1974 400S
1975 340S | 440S | 440T
1976 250S | 340S | 440S | 340T | 440T
Special Twisters

1974 400 ST  
3878002, IA
3878111, MN
3878149, MI
3878201, MB
3878244, TN
3878318, MI
3878431, WI
3878435, ON
3878461, PA
3878468, SK
3878481, WI
3878508, ON
3878509, WI
3878626, SK
3878727, SK
3878728, ON
3878876, ON
3879010, MI

1975 340 ST 
4206258, ON
4206295, PA
4206379, SK
4206516, NE
4206590, PA
4206661, MI
4206663, WI
4206676, MI
4206724, WI
4206728, VT
4206769, MI
4206838, ON
4206903, SK
4206945, MT
4206955, SK
4206963, ON
4206997, ON
4207025, ON
4207039, ON
4207289, MN
4207411, WI
4207412, TN
4207415, WI
4207436, AB
4207446, MI

1975 440 ST
4205078, AK
4205089, MI
4205142, WI
4205159, MN
4205171, SK
4205203, NY
4205209, MI
4205299, SK
4205316, SK
4205319, NY
4205324, MI
4205333, SK
4205359, MI
4205437, AB
4205509, SK
4205512, MI
4205518, MB
4205527, SK
4205568, MI
4205569, IA
4205660, WI
4205666, MI
4205684, IA
4205687, ON
4209707, MI
4205903, MI
4205920, ON
4205969, SK
4205979, NY
4206010, ON
4206017, MI
4206087, WI

1975 440 TT
4207557, WI
4207588, MI
4207573, ME
4207643, WI
4207666, MI
4207802, MI
4207874. PA
4208005, MI
4208060, MI
4208199, NY
4208211, MI
4208232, AB
4208249, AK
4208322, ON
4209023, MI
4209042, NY
4209076, ON
4209081, NY
4209208, ON
4209249, MI
4209304, ON
4209326, NH
4209344, ON
4209373, ON
4209379, ON
4209404, NY
4209433, SK
4209443, MB
4209466, ON
4209527, MI
4209576, MB
4209608, OH
4209625, MI
4209631, MI
4209669, MI
4209707, MI
4209746, MI
4209755, ON
4209782, MN
4209791, AB
4209830, MI
4209846, ON
4209851, OH
4209893, NH
4209922, SK
4210019, ON
4210027, MI
4210143, OH

1976 250 ST
4349579, MI
4349743, MN
4349876, MB
4349880, PA
4349893, MN
4349895, MI
4349938, MI
4349944, AB
4349964, QE
4349988, NS
4350000, WI
4350007, WI
4350016, IL
4350019, ON
4350057, MN
4350059, ON
4350089, WI
4350090, OH
4350178, IA
4350218, MI
4350230, MI
4350247, MN
4350272, NY
4350316, AB
4495532, MN
4495551, ON
4495557, OH

1976 340 ST
4349331, MB
4349336, BC
4350292 , ON
4495520, NY
4495598, MI
4495638, AK
4495644, MT
4495667, MI
4495672, MI
4495676, VT
4495680, MI
4495685, MI
4495708, CT
4495744, WA
4495785, ME
4495795, MI
4495798, MI
4495809, ON
4495833, MI
4495841, ON
4495843, PA
4495881, SK
4495937, ON
4495944, ON
4495947, MB
4495950, ON
4495955, ON
4495967, QE
4495983, NY
4495986. AB
4496017, MI
4496028, ON
4496050, SK
4496051, BC
4496052, BC
4496064. AB
4496077. AB
4496081, MB
4496083, ON
4496092, MI
4496097, BC
4496003, ON
4496858, BC

1976 440 ST
4348126, ON
4348126, ON
4349326, MB
4349327, WA
4349328, WA
4349329, ID
4349330, WI
4349331, MB
4349332, WI
4349333, SK
4349334, WI
4349335, WA
4349336, BC
4349365, ON
4349366, ON
4349377, MI
4349424, MI
4349436, AB
4349455, ND
4349469, SK
4349470, AK
4349478, NY
4349526, MI
4349542, OH
4349554, NY
4349564, WI
4349579, MI
4349592, ON
4349607, PA
4349622, MI
4349632, NH
4349657, AB
4349666, NH
4349681, MI
4349717, NS
4349727, SK
4349746, WI
4349779, SK
4349816, MI
4349819, NB
4349832, NY

1976 340 TT
4345903, ON
4345915, ON
4345060, MI
4345967, MB
4346026, MT
4346062, PA
4346048, NY
4346163, SK
4346339, AK
4346497, SK
4346571, IA
4346621, WI
4346624, ON
4346636, ON
4346688, WI
4346693, WI
4346740 AB
4346813, WI
4346829, MI
4346867, IA
4346949, ON
4347040, WI
4347074, MI
4347094, MI
4347464, MI
4347737, MI
4347821, AB
4347943, MI
4348152, MI
4348624, ON

1976 440 TT
4340106, ON
4340109, ON
4340117, ON
4347313, PA
4347359, OH
4347391, MI
4347398, MI
4347479. MI
4347551, PA
4347573, VT
4347683, MI
4347701, SK
4347713, PA
4347780, MI
4347806, SK
4347816, SK
4347833, MI
4347856, MI
4347873, AK
4347874, IA
4347921, AB
4347878, MI
4348021, SK
4348056, MI
4348147, MI
4348152, MI
4348248, WI
4348283, WI
4348375, MI
4348489, SK
4348523, ON
4348554, SK
4348570, ON
4348588, AB
4348716, ON
4348749, WI
4348855, WI
4348859, WI
4348937, ON
4349020, MI
4349063, ON
4349096, ON
4349207, IA
4349251, ON

Special Twisters 
From BD (1975 Merc Factory Racers)
4207508, Spare Chassis, WI at Mercury HQ
4207654, Doug Hayes 440X, SK
Six sleds, wrecked one and destroyed others. 

From GC (1976 Merc Factory Racers)
4349326 Doug Hayes 1976 440, MB
4349327 Spare Short Chassis, WA
4349328 Doug Hayes 1976 250, WA
4349331 Doug Hayes 1976 340, MB
4349333 Stan Hayes 1976 250, SK
4349334 Stan Hayes 1976 440, WI
4349335 Spare Long Chassis, WA
4349336 Stan Hayes 1976 340, BC
Six built and two spare chassis. There was three production 440 chassis sold within the VIN Run (4349326-4349336): 4349329 (ID), 4349330 (WI), and 4349332 (WI).

    Others
4208060 1975 440 TT woody's test, MI
4209326 1975 440 TT NHSM, NH
4349564, Hulings 76 ST 250 eng in 440, WI
4495708 1976 Ball 1000cc ST, CT
4496050 1976 Bud Lee 340 ST, SK
VIN Not Disclosed, 1976 TC- 250 Winner, MI 

VINs out of sequence with ID List below
3879010, MI verified 1974 400 ST 
4495532, MN verified 1976 250 ST
4495551, ON verified 1976 250 ST
4495557, OH verified 1976 250 ST
4496003, ON verified 1976 250 ST 
4349331, MB verified 1976 340 ST
4349336, BC verified 1976 340 ST
4350292, ON verified 1976 340 ST
4496858, BC verified 1976 340 ST 
4340106, ON pending verification 1976 440 TT
4340109, ON pending verification 1976 440 TT
4340117, ON pending verification 1976 440 TT

Merc Twister ID Number Help
Info below provided by collectors.
(Note, use as a guide, not absolute)

1974 400 ST   3877945 - 3878945  
1975 340 ST   4206250 - 4207500
1975 440 ST   4205000 - 4206250
1975 440 TT    4207500 - 4210249
1976 250 ST   4349875 - 4350424
1976 340 ST   4495560 - 4496110
1976 440 ST   4349325 - 4349874
1976 340 TT   4345825 - 4347124
1976 440 TT   4347125 - 4349324

Twister Help Info
(Off Site Links)

Belts
(In Work) (Always Measure To Be Sure)
Axial Fan Belts
75-76 TT OEM 57-71206 9.5 x 650
Drive Belts
OEM
1974 ST 400 57-67941
1975 ST 340/440 57-67941-1
1975 TT 440 57-67941-1
1976 ST 250/340/440 57-73348 / 57-74294
1976 TT 340/440 57-74293
Dayco
1974 ST 400 Dayco MAX 1071 / MAX1072M2
1975 ST 340/440 MAX1072M2
1975 TT 440 MAX1072M2
1976 ST 250/340/440 MAX 2000 / HP3013
1976 TT 340/440 MAX 2000 / HP3013
Gates
1974 ST 400 Gates 6094
1975 ST 340/440 Gates 6094
1975 TT 440 Gates 6094
1976 ST 250/340/440 
1976 TT 340/440 
Kimpex
1974 ST 400 Kimpex 10-237
1975 ST 340/440 Kimpex 10-237
1975 TT 440 Kimpex 10-237
1976 ST 250/340/440 
1976 TT 340/440 

Carb 
    VM Exploded View
    VM Manual

Electrical
    CDI Wiring Diagram
    Issues? Troubleshooting Guide
    Stator Replacement Videos
        Part 1 
        Part 2 

Exhaust Pipe Sealant
   
Permatex Ultra Copper Maximum Temperature RTV Silicone Gasket Maker US Part Number: 81878 Canada Part Number: 59703

Parts
Classic Muscle Sleds (612) 270-6855
Image Enterprises (New and used Twister parts) (715) 479-7427

Parts and Services
Pop A Top: Specializing in Hi-Performance Mercury Twister Snowmobiles, Kohler engine mods, performance clutching, dyno and custom machining. Full Machine Shop with complete engine service from stock to full modification. Crankshaft rebuilding. Custom Parts manufacturing such as Mercury Twister Engine Mounts. Used parts for Mercury Twisters. Cylinder Plating referral services. (860) 944-6150  

Part #s 
    Inventory List
    1976 Trail Twister IPB

Recoil
    Repair Video 
    Replacement Spring Tecumseh # 590487

Service Manuals
    All TT and ST

Wiring Diagrams
    All
    1975 Diagram and Info
    1976 Diagram

Mercury Snowmobile Forum