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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-132-501-12
COMP Cams Tri-Power Xtreme Mechanical Roller Camshaft Lift .450"/.450" Duration 258/268 RPM Range 1500 to 4200
$89895
Ships on Oct 29, 2026
Lowest Price GuaranteeCurrently Unavailable
This product is currently not available. Please call customer service for assistance at 1-800-345-4545.
GM 6600/6.6L Duramax Diesel 2000-Present
- COMP Cams Tri-Power Xtreme Mechanical Roller Camshaft
Lift .450"/.450"
Duration 258/268
RPM Range 1500 to 4200
MECHANICAL ROLLER - Designed for modified performance applications (Exh., programmer, etc. upgrades). Good for limited towing.
Duramax; 6.6 Duramax; 6.6L Duramax; GM Duramax; Turbo Diesel
Designed for modified performance applications (Exh., programmer, etc.). Good for limited towing.
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Part TypeCamshaft
BrandCOMP CAMS
Package Height2.75
Package Width3.0
Package Length24.5
Weight9.0 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)202
Cam StyleHydraulic roller tappet
Exh. Duration Advertised (Deg)268
Engine Make/SizeGM Duramax Diesel 6.6L
Intake Valve Lift With Factory Rocker Arm Ratio (I0.45
Int. Duration @ .050 In. (Deg)197
Basic Operating Rpm Range1,500-4,200
Intake Valve Lash0.01 in (0.254 mm)
Intake Valve Lift0.45 in (11.43 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)258
Lobe Separation (Deg)109
Rpm Range1500-4200
Advertised Duration258 int./268 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.45
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.450 int./0.450 exh.
QuantitySold individually
Exhaust Valve Lash0.01 in (0.254 mm)
Exhaust Valve Lift0.45 in (11.43 mm)
Advertised Intake Duration258
Intake Duration At 050 Inch Lift197
Exhaust Duration At 050 Inch Lift202
Advertised Exhaust Duration268
Lifter TypeHydraulic Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift197 int./202 exh.
Valve Springs RequiredYes
Vendor Part Number132-501-12
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
