ATI - Super Dampers® for Mazda Engines


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Super Damper^® Harmonic Dampers

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McLaren M838T & M840T Super Dampers

The ATI Super Damper can handle any engine speed and driving conditions that get thrown at it to better protect your engine. ATI Super Dampers provide balanced dampening of torsional crankshaft vibrations through all RPM ranges especially during competition use. The flat plane crank in these McLaren engines work well at higher RPM but feels very rough at idle. The viscous filled OEM damper can't perform as well at higher RPM levels like the ATI Super Damper and this is where the McLaren engine shines

Fits McLaren 2011+ M838T & M840T engines
Replaces OEM McLaren Part # 1211F0708CP, Metaldyne 00038630-3 and 0003863+3
7.074" Diameter Aluminum Single Piece Shell & Hub
Dampens torsional crankshaft vibrations at all RPM levels
Protects against engine harmonics
Laser-etched timing marks
SFI 18.1 Certified for competition use
Made in America

Specs

Shell Material: Aluminum - 916424
Hub Inner Diameter: 1.929"
Inertia Weight: 3 ring - 916330

Fits the following McLaren 2011+ M838T & M840T engine applications and possibly others:

M838T

• MP4-12C	'11–'14
• MP4-12C GT3	'11–'15
• 650S	'14–'17
• 675LT	'15–'17
• MSO 688 HS	'16–'17

M838TE

• 540C	'16–'21
• 570S	'16–'21
• 600LT	'18–'21
• 620R	'20–'21

M840T

• 720S	'17–'23
• 720S GT3	'18–'22
• 720S GT3X	'21–'22
• 765LT	'20–'23
• 750S	'23+
• Speedtail	'20

M840TE

• GT	'19–'24
• GTS	'24+

Part #	Diameter	Weight	Price	Purchase
917181	7.074"	6.25 lbs	$504.80

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