420A Visual Guide: 420A Motor and Transmission Mounts

420A Motor and Transmission Mounts​

This guide is for the North American 1995-99 model year Mitsubishi Eclipse RS & GS COUPE (Not Spyder Convertible) and 1995-98 Eagle Talon (base) and ESi models equipped with a 420A Engine ONLY.

Note: All parts shown are New Old Stock (NOS). While I tried to source the example parts shown here from reputable sources, I cannot guarantee their authenticity.

Disclaimer: this info may not be comprehensive or exhaustive, and may contain mistakes or errors. If you see a mistake or something missing, feel free to drop a comment.

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Front (Roll Stopper) Mount​

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Front (Roll Stopper) Mount​

• Auto Transmission: MB844275
• Manual Transmission: MB844274

Center Hole Fasteners​

• M10x75 Bolt: MF140473
• M12 Flange Nut: MB288462

Mount Fasteners​

• M10x30 Bolt (2 qty. required): MU242010

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Left (Transmission) Mount​

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Left (Transmission) Mount​

• Auto Transmission: MB910661
• Manual Transmission: MB910660

Stoppers​

• Auto Transmission (2 qty. required): MR333457
• Manual Transmission (2 qty. required): MB911549

Center Hole Fasteners​

• M12x95 Bolt: MS100923
• M12 Flange Nut: MF434106

Mount Fasteners​

• M12 Self Locking Nut (3 qty. required): MB242260

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Right Mount​

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Right Mount: MB910657​

Stoppers (2 qty. required): MB911547​

Center Hole Fasteners​

• M12x108 Bolt: MB844519
• 12mm Spring Washer: MS450044

Mount Fasteners​

• M12x74 Bolt: MB911545
• 12mm Self Locking Nut (2 qty. required): MB242260

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Rear (Roll Stopper) Mount​

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Rear (Roll Stopper) Mount​

• Auto Transmission: MB910663
• Manual Transmission: MB910662

Center Hole Fasteners​

• M10x90 Bolt: MB007173
• 10mm Spring Washer: MS450043
• M10 Nut: MF430122

Mount Fasteners​

• M10x25 Bolt (3 qty. required): MB007176

 

[electrohead]

Just a bit of additional info for those interested: The front roll stop mount center hole will fit a 16mm or 5/8" bolt. Since the bolt used is so small, there can be extra engine movement under 'spirited' driving. By taking out the bracket and matching the hole size with the mounts' and using a bigger bolt, there is minimized slop.