Engine Internals

From pistons and connecting rods to camshafts, crankshafts, bearings, and gaskets, our engine internals selection has everything needed for a reliable bottom end and a high-revving top end. With forged and performance options alongside OE-style replacements, every component is built for precision and durability. Lay the foundation for serious power and keep your engine strong under pressure.

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Skunk2 K Series Pro Series Cam Gear Set

Regular price $398.95
Sale price $398.95 Regular price $419.95
Unit price
An engine's camshafts must be set at their proper positions relative to the crankshaft in...
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Skunk2 K Series Pro Series Exhaust Cam Gear

Regular price $210.47
Sale price $210.47 Regular price
Unit price
An engine's camshafts must be set at their proper positions relative to the crankshaft in...
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Skunk2 06-11 Honda Civic Si O2 Extension

Regular price $41.85
Sale price $41.85 Regular price
Unit price
The O2 sensor wire harness extension is designed for 2006-2014 Civic Sis. These extensions are...
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Radium Engineering Mazda 13B-REW ACV Block Off

Regular price $28.45
Sale price $28.45 Regular price
Unit price
Block off plate for Mazda 13B-REW ACV on intake manifold. Necessary to use Radium fuel...
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Radium Engineering IACV Gasket - S14/15 SR20DET

Regular price $22.99
Sale price $22.99 Regular price
Unit price
Made from Kevlar and Nitrile rubber for fuel and oil resistanceThis Part Fits: Year Make...
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Mishimoto 14-15 Subaru WRX / Forester 68 Degree Celsius Racing Thermostat

Regular price $68.95
Sale price $68.95 Regular price
Unit price
The Mishimoto racing thermostat for the 2015+ Subaru WRX will promote greater cooling efficiency in...
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Mishimoto 01-07 Subaru WRX / WRX STi 68 Degree Celsius Racing Thermostat

Regular price $64.95
Sale price $64.95 Regular price
Unit price
2005 Saab 9-2X 2.0 Liter TV1A4, 2005 Saab 9-2X 2.0 Liter TY754, 2005-2006 Saab 9-2X...
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Mishimoto Jeep Wrangler 2.5L/4.0L/4.2L Racing Thermostat

Regular price $34.95
Sale price $34.95 Regular price
Unit price
1961-1962 Alfa Romeo 2000 2.0 Liter, 1970-1972 Alfa Romeo Berlina 1.8 Liter 3HP-12, 1970-1972 Alfa...
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Mishimoto 12-18 Jeep Wrangler JK 82 Degree Thermostat with Housing

Regular price $111.95
Sale price $111.95 Regular price
Unit price
Keep temperatures under control in your Jeep with the Mishimoto Jeep Wrangler JK 3.6L Thermostat...
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Mishimoto 12-18 Jeep Wrangler JK 90 Degree Thermostat with Housing

Regular price $89.95
Sale price $89.95 Regular price
Unit price
Keep temperatures under control in your Jeep with the Mishimoto Jeep Wrangler JK 3.6L Thermostat...
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Mishimoto Volkswagen Golf/Jetta/Passat VR6 Racing Thermostat

Regular price $68.95
Sale price $68.95 Regular price
Unit price
2001 Audi A4 2.8 Liter 012, 2001 Audi A4 2.8 Liter 01V, 2001 Audi A4...
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Mishimoto Chevrolet/GMC LSX Racing Thermostat

Regular price $68.95
Sale price $68.95 Regular price
Unit price
2008-2009 Buick LaCrosse 5.3 Liter 4T65-E-HD, 2004-2006 Buick Rainier 5.3 Liter 4L60-E, 2004-2006 Buick Rainier...
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Mishimoto 2014+ Chevrolet Corvette C7 Racing 180 Degree Racing Thermostat

Regular price $68.95
Sale price $68.95 Regular price
Unit price
Mishimoto has developed a racing thermostat engineered specifically for the 2014-2019 Corvette C7. The Mishimoto...
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Mishimoto 2016+ Chevy Camaro 6.2L / 2016+ Chevy Corvette Racing Thermostat

Regular price $68.95
Sale price $68.95 Regular price
Unit price
2015-2016 Cadillac Escalade Base 6.2 Liter 8L90, 2015-2016 Cadillac Escalade Luxury 6.2 Liter 8L90, 2015-2016...
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Mishimoto 10-15 Chevy Camaro SS/ZL1 / 09-13 Chevy Corvette / 09-15 Cadillac CTS-V Racing Thermostat

Regular price $68.95
Sale price $68.95 Regular price
Unit price
2007 Buick Rainier CXL 4.2 Liter 4L60-E, 2007 Buick Rainier CXL 5.3 Liter 4L60-E, 2009-2015...
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Mishimoto 2007+ Toyota Tundra 5.7L Low-Temperature Thermostat

Regular price $89.95
Sale price $89.95 Regular price
Unit price
A defective thermostat can result in engine overheating and potential internal damage. Improve the reliability...
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Mishimoto 05-10 Scion tC 155 Deg F / 68 Deg C Racing Thermostat

Regular price $68.95
Sale price $68.95 Regular price
Unit price
1998-2002 Chevrolet Prizm 1.8 Liter MB3, 1998-2002 Chevrolet Prizm 1.8 Liter MB4, 1998-2002 Chevrolet Prizm...
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Mishimoto 93-98 Toyota Supra / 04-06 Scion xA 155 Deg F/68 Deg C Racing Thermostat

Regular price $79.95
Sale price $79.95 Regular price
Unit price
1993-1995 Lexus GS300 3.0 Liter A340E, 1996-1997 Lexus GS300 3.0 Liter A350E, 1998-2005 Lexus GS300...
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Mishimoto 86-92 Toyota Supra 155 Deg F/68 Deg C Racing Thermostat

Regular price $79.95
Sale price $79.95 Regular price
Unit price
1990-1995 Toyota 4Runner 2.4 Liter A340E, 1984-1995 Toyota 4Runner 2.4 Liter A340H, 1990-1991 Toyota 4Runner...
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Mishimoto 00-09 Honda S2000 / 93-99 NSX / 91-95 Legend 68 Degree Racing Thermostat

Regular price $68.95
Sale price $68.95 Regular price
Unit price
1997 Acura CL 3.0 Liter A6VA, 1998-1999 Acura CL 3.0 Liter B6VA, 1997-1999 Acura CL...
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Mishimoto Mazda RX8 Racing Thermostat

Regular price $68.95
Sale price $68.95 Regular price
Unit price
1993-1997 Ford Probe 2.0 Liter 4EAT-GF, 1994-1997 Ford Probe 2.0 Liter CD4E, 1993-1997 Ford Probe...
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Mishimoto 89-95 Mazda RX-7 68 Degree Racing Thermostat

Regular price $68.95
Sale price $68.95 Regular price
Unit price
1989-1992 Daihatsu Charade 1.3 Liter A210, 1990-1992 Daihatsu Rocky 1.6 Liter, 1995-2000 Ford Contour 2.0...
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Mishimoto 02-06 Acura RSX 60 Degree Racing Thermostat

Regular price $89.95
Sale price $89.95 Regular price
Unit price
The Mishimoto racing thermostat for the 2002-2006 Acura RSX will promote greater cooling efficiency throughout...
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Mishimoto Nissan RB 155 Deg F/68 Deg C Racing Thermostat

Regular price $68.95
Sale price $68.95 Regular price
Unit price
1993-1997 Infiniti J30 3.0 Liter RE4R01A, 1990-1992 Infiniti M30 3.0 Liter RE4R01A, 1997-2000 Infiniti QX4...
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