ATI Super Damper Crank Pulley for McLaren M838T/M840T (917181)

ATI Performance Products introduces its Super Damper for McLaren M838T(E) & M840T(E) engines. Part #917181 features a 7.07-inch diameter aluminum shell and hub, directly replacing OEM McLaren Part #1211F0708CP and Metaldyne dampers #00038630 -3 and +3. Designed to handle a wide RPM range, it complements the high-RPM performance of the McLaren’s flat plane crank, which can feel rough at idle but thrives at speed. Unlike the OEM viscous damper, the ATI Super Damper delivers optimal performance at higher RPMs. It includes laser-etched timing marks and meets SFI 18.1 safety standards for competition.

McClaren Model Fitment:
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+

Features:
• 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

See more ATI Dampers