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MB4-HDR6 - ACT Heavy Duty Race Rigid 6 Pad Clutch Kit
$544.60
SKU
MB4-HDR6
Specifications
| Item Description | ACT Heavy Duty Race Rigid 6 Pad Clutch Kit |
|---|---|
| Product Weight (lbs.) | 10.7 |
| Torque Capacity (ft/lbs.) | 255 |
| Torque Capacity Over OE | 76% |
| Disc Material | Ceramic |
| Clutch Disc Diameter (Inches) | 7.9 |
| Clutch Disc Diameter (Millimeters) | 200 |
| Input Shaft Diameter (inches) | 0.875 |
| Pressure Plate Type | Heavy Duty |
| Warranty | 12 Months (view details) |
Description
MB4-HDR6 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 6-pad rigid race discs are made with high quality, ceramic friction materials. The chrome-moly hub is heat-treated for strength and durability. The lightweight, rigid design allows for quicker shifts and smooth, trouble-free service. With the 6-pad rigid race disc, engagement is harsher, but shifting is faster. The 6-pad rigid race disc is recommended for larger clutch sizes to absorb more heat.
| Feel | Light to moderate pedal effort, aggressive engagement, increased gear rattle |
|---|---|
| Life | Moderate friction life, extended by ACT's exclusive diaphragm design, rigid design may increase spline wear |
| Quality | Carefully engineered, precisely assembled, accurately balanced, uses select ceramic friction materials for high heat tolerance and maximum performance |
| Recommended Use | Recommended for race use only |
| ACT Difference | 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability |
Vehicle Fitment
| Application | Engine |
|---|---|
| 1976 Plymouth Arrow Base | 1.6 L4 GAS FI 1597cc | SOHC | Naturally Aspirated |
| 1976 Plymouth Arrow GS | 1.6 L4 GAS FI 1597cc | SOHC | Naturally Aspirated |
| 1976 Plymouth Arrow GT | 1.6 L4 GAS FI 1597cc | SOHC | Naturally Aspirated |
| 1977 Plymouth Arrow Base | 1.6 L4 GAS FI 1597cc | SOHC | Naturally Aspirated |
| 1977 Plymouth Arrow GS | 1.6 L4 GAS FI 1597cc | SOHC | Naturally Aspirated |
| 1977 Plymouth Arrow GT | 1.6 L4 GAS FI 1597cc | SOHC | Naturally Aspirated |
| 1978 Plymouth Arrow Base | 1.6 L4 GAS FI 1597cc | SOHC | Naturally Aspirated |
| 1978 Plymouth Arrow GS | 1.6 L4 GAS FI 1597cc | SOHC | Naturally Aspirated |
| 1978 Plymouth Arrow GT | 1.6 L4 GAS FI 1597cc | SOHC | Naturally Aspirated |
| 1979 Plymouth Arrow Base | 1.6 L4 GAS FI 1597cc | SOHC | Naturally Aspirated |
| 1979 Plymouth Arrow GS | 1.6 L4 GAS FI 1597cc | SOHC | Naturally Aspirated |
| 1979 Plymouth Arrow GT | 1.6 L4 GAS FI 1597cc | SOHC | Naturally Aspirated |
| 1979 Plymouth Champ Base | 1.4 L4 GAS FI 1410cc | SOHC |
| 1979 Plymouth Champ Custom | 1.4 L4 GAS FI 1410cc | SOHC |
| 1979 Plymouth Champ Custom | 1.6 L4 GAS FI 1597cc | SOHC |
| 1979 Plymouth Sapporo Base | 1.6 L4 GAS FI 1597cc | SOHC | Naturally Aspirated |
| 1980 Plymouth Arrow Base | 1.6 L4 GAS FI 1597cc | SOHC | Naturally Aspirated |
| 1980 Plymouth Arrow GS | 1.6 L4 GAS FI 1597cc | SOHC | Naturally Aspirated |
| 1980 Plymouth Arrow GT | 1.6 L4 GAS FI 1597cc | SOHC | Naturally Aspirated |
| 1980 Plymouth Champ Base | 1.4 L4 GAS FI 1410cc | SOHC |
| 1980 Plymouth Champ Base | 1.6 L4 GAS FI 1597cc | SOHC |
| 1980 Plymouth Champ Custom | 1.6 L4 GAS FI 1597cc | SOHC |
| 1981 Plymouth Champ Base | 1.4 L4 GAS FI 1410cc | SOHC |
| 1981 Plymouth Champ Base | 1.6 L4 GAS FI 1597cc | SOHC |
| 1981 Plymouth Champ Custom | 1.6 L4 GAS FI 1597cc | SOHC |
| 1982 Plymouth Champ Base | 1.4 L4 GAS FI 1410cc | SOHC |
| 1982 Plymouth Champ Custom | 1.4 L4 GAS FI 1410cc | SOHC |
| 1982 Plymouth Champ Custom | 1.6 L4 GAS FI 1597cc | SOHC |
| 1982 Plymouth Champ Deluxe | 1.4 L4 GAS FI 1410cc | SOHC |
| 1983 Mitsubishi Cordia Base | 1.8 L4 GAS FI 1795cc | SOHC |
| 1983 Mitsubishi Cordia L | 1.8 L4 GAS FI 1795cc | SOHC |
| 1983 Mitsubishi Cordia LS | 1.8 L4 GAS FI 1795cc | SOHC |
| 1983 Mitsubishi Tredia Base | 1.8 L4 GAS FI 1795cc | SOHC | Naturally Aspirated |
| 1983 Mitsubishi Tredia L | 1.8 L4 GAS FI 1795cc | SOHC | Naturally Aspirated |
| 1983 Mitsubishi Tredia LS | 1.8 L4 GAS FI 1795cc | SOHC | Naturally Aspirated |
| 1984 Dodge Colt Vista | 2.0 L4 GAS FI 1997cc | SOHC |
| 1984 Mitsubishi Cordia Base | 2.0 L4 GAS FI 1997cc | SOHC |
| 1984 Mitsubishi Cordia L | 2.0 L4 GAS FI 1997cc | SOHC |
| 1984 Mitsubishi Cordia LS | 2.0 L4 GAS FI 1997cc | SOHC |
| 1984 Mitsubishi Cordia Turbo | 1.8 L4 GAS FI 1795cc | SOHC |
| 1984 Mitsubishi Tredia Base | 2.0 L4 GAS FI 1997cc | SOHC | Naturally Aspirated |
| 1984 Mitsubishi Tredia L | 2.0 L4 GAS FI 1997cc | SOHC | Naturally Aspirated |
| 1984 Mitsubishi Tredia LS | 2.0 L4 GAS FI 1997cc | SOHC | Naturally Aspirated |
| 1984 Mitsubishi Tredia Turbo | 1.8 L4 GAS FI 1795cc | SOHC | Turbocharged |
| 1985 Dodge Colt Vista | 2.0 L4 GAS FI 1997cc | SOHC |
| 1985 Mitsubishi Cordia L | 2.0 L4 GAS FI 1997cc | SOHC |
| 1985 Mitsubishi Cordia Turbo | 1.8 L4 GAS FI 1795cc | SOHC |
| 1985 Mitsubishi Tredia Base | 2.0 L4 GAS FI 1997cc | SOHC | Naturally Aspirated |
| 1985 Mitsubishi Tredia L | 2.0 L4 GAS FI 1997cc | SOHC | Naturally Aspirated |
| 1985 Mitsubishi Tredia Turbo | 1.8 L4 GAS FI 1795cc | SOHC | Turbocharged |
| 1986 Dodge Colt Vista | 2.0 L4 GAS FI 1997cc | SOHC |
| 1986 Dodge Colt Vista Custom | 2.0 L4 GAS FI 1997cc | SOHC |
| 1986 Mitsubishi Cordia L | 2.0 L4 GAS FI 1997cc | SOHC |
| 1986 Mitsubishi Cordia Turbo | 1.8 L4 GAS FI 1795cc | SOHC |
| 1986 Mitsubishi Tredia Base | 2.0 L4 GAS FI 1997cc | SOHC | Naturally Aspirated |
| 1986 Mitsubishi Tredia L | 2.0 L4 GAS FI 1997cc | SOHC | Naturally Aspirated |
| 1986 Mitsubishi Tredia LS | 2.0 L4 GAS FI 1997cc | SOHC | Naturally Aspirated |
| 1986 Mitsubishi Tredia Turbo | 1.8 L4 GAS FI 1795cc | SOHC | Turbocharged |
| 1987 Mitsubishi Cordia L | 2.0 L4 GAS FI 1997cc | SOHC |
| 1987 Mitsubishi Cordia Turbo | 1.8 L4 GAS FI 1795cc | SOHC |
| 1987 Mitsubishi Tredia L | 2.0 L4 GAS FI 1997cc | SOHC | Naturally Aspirated |
| 1987 Mitsubishi Tredia LS | 2.0 L4 GAS FI 1997cc | SOHC | Naturally Aspirated |
| 1987 Mitsubishi Tredia Turbo | 1.8 L4 GAS FI 1795cc | SOHC | Turbocharged |
| 1988 Mitsubishi Cordia L | 2.0 L4 GAS FI 1997cc | SOHC |
| 1988 Mitsubishi Cordia Turbo | 1.8 L4 GAS FI 1795cc | SOHC |
| 1988 Mitsubishi Tredia L | 2.0 L4 GAS FI 1997cc | SOHC | Naturally Aspirated |
| 1988 Mitsubishi Tredia LS | 2.0 L4 GAS FI 1997cc | SOHC | Naturally Aspirated |
| 1988 Mitsubishi Tredia Turbo | 1.8 L4 GAS FI 1795cc | SOHC | Turbocharged |
| 1989 Eagle Summit DL | 1.5 L4 GAS FI 1468cc | SOHC |
| 1989 Eagle Summit LX | 1.6 L4 GAS FI 1597cc | DOHC |
| 1989 Eagle Summit LX | 1.5 L4 GAS FI 1468cc | SOHC |
| 1989 Mitsubishi Precis Base | 1.5 L4 GAS FI 1468cc | SOHC | Naturally Aspirated |
| 1989 Mitsubishi Precis LS | 1.5 L4 GAS FI 1468cc | SOHC | Naturally Aspirated |
| 1989 Mitsubishi Precis RS | 1.5 L4 GAS FI 1468cc | SOHC | Naturally Aspirated |
| 1990 Eagle Summit DL | 1.5 L4 GAS FI 1468cc | SOHC |
| 1990 Eagle Summit ES | 1.6 L4 GAS FI 1597cc | DOHC |
| 1990 Eagle Summit ES | 1.5 L4 GAS FI 1468cc | SOHC |
| 1990 Eagle Summit LX | 1.6 L4 GAS FI 1597cc | DOHC |
| 1990 Eagle Summit LX | 1.5 L4 GAS FI 1468cc | SOHC |
| 1990 Hyundai Excel Base | 1.5 L4 GAS FI 1468cc |
| 1990 Hyundai Excel GL | 1.5 L4 GAS FI 1468cc |
| 1990 Hyundai Excel GLS | 1.5 L4 GAS FI 1468cc |
| 1990 Mitsubishi Eclipse Base | 1.8 L4 GAS FI 1755cc | SOHC |
| 1990 Mitsubishi Eclipse GS | 1.8 L4 GAS FI 1755cc | SOHC |
| 1990 Mitsubishi Precis Base | 1.5 L4 GAS FI 1468cc | SOHC | Naturally Aspirated |
| 1990 Mitsubishi Precis RS | 1.5 L4 GAS FI 1468cc | SOHC | Naturally Aspirated |
| 1990 Plymouth Laser Base | 1.8 L4 GAS FI 1755cc | SOHC |
| 1990 Plymouth Laser RS | 1.8 L4 GAS FI 1755cc | SOHC |
| 1991 Eagle Summit Base | 1.5 L4 GAS FI 1468cc | SOHC |
| 1991 Eagle Summit ES | 1.5 L4 GAS FI 1468cc | SOHC |
| 1991 Hyundai Excel Base | 1.5 L4 GAS FI 1468cc |
| 1991 Hyundai Excel GL | 1.5 L4 GAS FI 1468cc |
| 1991 Hyundai Excel GLS | 1.5 L4 GAS FI 1468cc |
| 1991 Hyundai Excel GS | 1.5 L4 GAS FI 1468cc |
| 1991 Hyundai Scoupe Base | 1.5 L4 GAS FI 1468cc | SOHC | Naturally Aspirated |
| 1991 Hyundai Scoupe LS | 1.5 L4 GAS FI 1468cc | SOHC | Naturally Aspirated |
| 1991 Mitsubishi Eclipse Base | 1.8 L4 GAS FI 1755cc | SOHC |
| 1991 Mitsubishi Eclipse GS | 1.8 L4 GAS FI 1755cc | SOHC |
| 1991 Mitsubishi Mirage Base | 1.5 L4 GAS FI 1468cc | SOHC |
| 1991 Mitsubishi Mirage GS | 1.6 L4 GAS FI 1597cc | DOHC |
| 1991 Mitsubishi Mirage LS | 1.5 L4 GAS FI 1468cc | SOHC |
| 1991 Mitsubishi Mirage SE | 1.5 L4 GAS FI 1468cc | SOHC |
| 1991 Mitsubishi Mirage VL | 1.5 L4 GAS FI 1468cc | SOHC |
| 1991 Mitsubishi Precis Base | 1.5 L4 GAS FI 1468cc | SOHC | Naturally Aspirated |
| 1991 Mitsubishi Precis RS | 1.5 L4 GAS FI 1468cc | SOHC | Naturally Aspirated |
| 1991 Plymouth Laser Base | 1.8 L4 GAS FI 1755cc | SOHC |
| 1992 Eagle Summit Base | 1.5 L4 GAS FI 1468cc | SOHC |
| 1992 Eagle Summit DL | 1.5 L4 GAS FI 1468cc | SOHC |
| 1992 Eagle Summit ES | 1.5 L4 GAS FI 1468cc | SOHC |
| 1992 Hyundai Elantra Base | 1.6 L4 GAS FI 1596cc | DOHC |
| 1992 Hyundai Elantra GL | 1.6 L4 GAS FI 1596cc | DOHC |
| 1992 Hyundai Elantra GLS | 1.6 L4 GAS FI 1596cc | DOHC |
| 1992 Hyundai Excel Base | 1.5 L4 GAS FI 1468cc |
| 1992 Hyundai Excel GL | 1.5 L4 GAS FI 1468cc |
| 1992 Hyundai Excel GS | 1.5 L4 GAS FI 1468cc |
| 1992 Hyundai Scoupe Base | 1.5 L4 GAS FI 1468cc | SOHC | Naturally Aspirated |
| 1992 Hyundai Scoupe LS | 1.5 L4 GAS FI 1468cc | SOHC | Naturally Aspirated |
| 1992 Mitsubishi Eclipse Base | 1.8 L4 GAS FI 1755cc | SOHC |
| 1992 Mitsubishi Eclipse GS | 1.8 L4 GAS FI 1755cc | SOHC |
| 1992 Mitsubishi Mirage Base | 1.5 L4 GAS FI 1468cc | SOHC |
| 1992 Mitsubishi Mirage GS | 1.6 L4 GAS FI 1597cc | DOHC |
| 1992 Mitsubishi Mirage LS | 1.5 L4 GAS FI 1468cc | SOHC |
| 1992 Mitsubishi Mirage SE | 1.5 L4 GAS FI 1468cc | SOHC |
| 1992 Mitsubishi Mirage VL | 1.5 L4 GAS FI 1468cc | SOHC |
| 1992 Mitsubishi Precis Base | 1.5 L4 GAS FI 1468cc | SOHC | Naturally Aspirated |
| 1992 Plymouth Laser Base | 1.8 L4 GAS FI 1755cc | SOHC |
| 1993 Eagle Summit DL | 1.5 L4 GAS FI 1468cc | SOHC |
| 1993 Eagle Summit ES | 1.5 L4 GAS FI 1468cc | SOHC |
| 1993 Eagle Talon DL | 1.8 L4 GAS FI 1755cc | SOHC |
| 1993 Hyundai Elantra Base | 1.6 L4 GAS FI 1596cc | DOHC |
| 1993 Hyundai Elantra GL | 1.6 L4 GAS FI 1596cc | DOHC |
| 1993 Hyundai Excel Base | 1.5 L4 GAS FI 1468cc |
| 1993 Hyundai Excel GL | 1.5 L4 GAS FI 1468cc |
| 1993 Hyundai Excel GS | 1.5 L4 GAS FI 1468cc |
| 1993 Hyundai Scoupe Base | 1.5 L4 GAS FI 1495cc | SOHC | Naturally Aspirated |
| 1993 Hyundai Scoupe LS | 1.5 L4 GAS FI 1495cc | SOHC | Naturally Aspirated |
| 1993 Mitsubishi Eclipse Base | 1.8 L4 GAS FI 1755cc | SOHC |
| 1993 Mitsubishi Eclipse GS | 1.8 L4 GAS FI 1755cc | SOHC |
| 1993 Mitsubishi Mirage ES | 1.5 L4 GAS FI 1468cc | SOHC |
| 1993 Mitsubishi Mirage LS | 1.5 L4 GAS FI 1468cc | SOHC |
| 1993 Mitsubishi Mirage S | 1.5 L4 GAS FI 1468cc | SOHC |
| 1993 Mitsubishi Precis Base | 1.5 L4 GAS FI 1468cc | SOHC | Naturally Aspirated |
| 1993 Plymouth Laser Base | 1.8 L4 GAS FI 1755cc | SOHC |
| 1994 Eagle Summit DL | 1.5 L4 GAS FI 1468cc | SOHC |
| 1994 Eagle Summit ES | 1.5 L4 GAS FI 1468cc | SOHC |
| 1994 Eagle Talon DL | 1.8 L4 GAS FI 1755cc | SOHC |
| 1994 Hyundai Excel Base | 1.5 L4 GAS FI 1468cc |
| 1994 Hyundai Excel GL | 1.5 L4 GAS FI 1468cc |
| 1994 Hyundai Excel GS | 1.5 L4 GAS FI 1468cc |
| 1994 Hyundai Scoupe Base | 1.5 L4 GAS FI 1495cc | SOHC | Naturally Aspirated |
| 1994 Hyundai Scoupe LS | 1.5 L4 GAS FI 1495cc | SOHC | Naturally Aspirated |
| 1994 Mitsubishi Eclipse Base | 1.8 L4 GAS FI 1755cc | SOHC |
| 1994 Mitsubishi Eclipse GS | 1.8 L4 GAS FI 1755cc | SOHC |
| 1994 Mitsubishi Mirage ES | 1.5 L4 GAS FI 1468cc | SOHC |
| 1994 Mitsubishi Mirage S | 1.5 L4 GAS FI 1468cc | SOHC |
| 1994 Plymouth Laser Base | 1.8 L4 GAS FI 1755cc | SOHC |
| 1995 Hyundai Scoupe Base | 1.5 L4 GAS FI 1495cc | SOHC | Naturally Aspirated |
| 1995 Hyundai Scoupe LS | 1.5 L4 GAS FI 1495cc | SOHC | Naturally Aspirated |
| 1995 Mitsubishi Mirage ES | 1.5 L4 GAS FI 1468cc | SOHC |
| 1995 Mitsubishi Mirage S | 1.5 L4 GAS FI 1468cc | SOHC |
| 1996 Eagle Summit DL | 1.5 L4 GAS FI 1468cc | SOHC |
| 1996 Eagle Summit ESi | 1.5 L4 GAS FI 1468cc | SOHC |
| 1996 Mitsubishi Mirage S | 1.5 L4 GAS FI 1468cc | SOHC |
| 1997 Mitsubishi Mirage DE | 1.5 L4 GAS FI 1468cc | SOHC |
| 1998 Mitsubishi Mirage DE | 1.5 L4 GAS FI 1468cc | SOHC |
| 1999 Mitsubishi Mirage DE | 1.5 L4 GAS FI 1468cc | SOHC |
| 2000 Mitsubishi Mirage DE | 1.5 L4 GAS FI 1468cc | SOHC |
| 2001 Mitsubishi Mirage DE | 1.5 L4 GAS FI 1468cc | SOHC |
| 2002 Mitsubishi Mirage DE | 1.5 L4 GAS FI 1468cc | SOHC |
Kit Contents:
Frequently Asked Questions
- Are ACT clutches balanced?
- Yes! All ACT clutch assemblies are computer spin balanced to within .25 oz-in to guarantee help smooth operation across the entire RPM range. For comparison, stock production clutches are typically balanced to within .50 oz-in. Lower is definitely better!
- Will an ACT clutch increase pedal effort?
- ACT pressure plates are specifically designed to handle high torque applications. With ACT's durable design, expect an increase in pedal effort between 15-40% (Heavy Duty) and 50-80% (Xtreme), depending on the application. Clutches developed with less pedal effort often result in a lack of longevity, torque capacity and/or engagement quality.
- Do ACT clutches require a break in period?
- For organic street discs, we recommend breaking in the clutch for 300-500 miles with mild engagement, such as stop-and-go city driving prior to racing or spirited driving. ACT race discs usually only require a few hard slips to lap in the surfaces prior to normal driving or racing. Do not overheat the clutch during the break in period, as this can result in friction surfaces fusing together, hot spots, and friction surface glazing.
- Are ACT clutches repairable or rebuildable?
- In some situations, rebuilds or repairs may be possible (see warranty), after inspection of the clutch assembly. Please contact our technical department for further information. Because of special modifications, we do not recommend servicing by a general clutch rebuilder.
- How much does an ACT clutch weigh?
- The weight of the ACT clutch assembly will usually be the same as a stock OEM clutch assembly.
PROP 65 WARNING
This product can expose you to chemicals including carbon black, glass wool fibers, and silica (in clutch discs), chromium and nickel, which are known to the State of California to cause cancer or birth defects or other reproductive harm. for more information, visit www.P65Warnings.ca.gov