Sinister Diesel Engine Bay Caps

Looking to upgrade your vehicle with a oil cap from Sinister Diesel? We carry a great variety of Sinister Diesel Engine Bay Caps and other engine component performance parts for your vehicle.

We have 28 Sinister Diesel Engine Bay Caps available with free shipping to the Continental US 48 States.

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SHIPS FROM MANUFACTURER SD-FC-FUEL-U-GRN Sinister Diesel 99-07 Ford Powerstroke 6.0L/7.3L / 12-17 GM Duramax 6.6L Diesel Fuel Cap - Green $88.37 Details

SHIPS FROM MANUFACTURER SD-6.6DC01-GRY Sinister Diesel 01-16 GM Duramax 6.6L Coolant Reservoir (Degas) Cap - Gray $93.98 Details

SHIPS FROM MANUFACTURER SD-6.7CDC13 Sinister Diesel 13-19 Cummins 6.7L Coolant Reservoir (Degas) Cap $93.98 Details

SHIPS FROM MANUFACTURER SD-DC-6.7P-20 Sinister Diesel 20+ Ford Powerstroke 6.7L Coolant Reservoir (Degas) Cap $93.98 Details

SHIPS FROM MANUFACTURER SD-DC-DMAX-01 Sinister Diesel 01-16 GM Duramax 6.6L Coolant Reservoir (Degas) Cap $93.98 Details

SHIPS FROM MANUFACTURER SDG-BCK-6.0 Sinister Diesel 03-07 Ford Powerstroke 6.0L Billet Gray Cap Kit- Gray $274.99 Details

SHIPS FROM MANUFACTURER SDG-BCK-6.4 Sinister Diesel 08-10 Ford Powerstroke 6.4L Billet Cap Kit - Gray $274.99 Details

SHIPS FROM MANUFACTURER SDG-FC-OIL Sinister Diesel 99-10 Ford Powerstroke 7.3/6.0/6.4 / 07.5-19 Dodge Cummins 6.7C Oil Fill Cap - Gray $115.49 Details

SHIPS FROM MANUFACTURER SDG-FFC-6.0 Sinister Diesel 03-07 Ford Powerstroke 6.0L Fuel Filter Cap - Gray $128.58 Details

SHIPS FROM MANUFACTURER SDG-MCC-FORD-99 Sinister Diesel 99-16 Ford Powerstroke Brake Master Cylinder Cap - Gray $68.74 Details

SHIPS FROM MANUFACTURER SDG-OFC-FORD-03 Sinister Diesel 03-07 Ford Powerstroke 6.0L Fuel Filter Cap - Gray $135.23 Details

SHIPS FROM MANUFACTURER SDG-PSC-FORD-08 Sinister Diesel 08-18 Ford Powerstroke Power Steering Cap - Gray $68.74 Details

SHIPS FROM MANUFACTURER SDG-RSNTRD-LML Sinister Diesel 11-16 GM Duramax 6.6L LML Intake Resonator Cover Plate - Gray $87.44 Details

SHIPS FROM MANUFACTURER SDG-UFC-OIL Sinister Diesel 11+ Ford Powerstroke 6.7L/ 2017+ Chevy Duramax Oil Fill Cap - Gray $62.19 Details

SHIPS FROM MANUFACTURER SD-MCC-L5P Sinister Diesel Chevy Duramax L5P Master Cylinder Cap $77.15 Details

SHIPS FROM MANUFACTURER SD-WWC-6.0 Sinister Diesel 03-07 Ford Powerstroke 6.0L Windshield Washer Fluid Cap $51.91 Details

SHIPS FROM MANUFACTURER SD-WWC-6.7P-17 Sinister Diesel 2017+ Ford Powerstroke Windshield Washer Cap $62.19 Details

Dodge Sinister Diesel Engine Bay Caps

Dodge D250 View all Dodge D250 Oil Caps

SHIPS FROM MANUFACTURER SD-FC-12V Sinister Diesel 89-98 Cummins 5.9L 12V Oil Fill Cap 1989-1993 Dodge D250 Base $98.66 Details

Dodge D350 View all Dodge D350 Oil Caps

SHIPS FROM MANUFACTURER SD-FC-12V Sinister Diesel 89-98 Cummins 5.9L 12V Oil Fill Cap 1989-1993 Dodge D350 Base $98.66 Details

Dodge Ram 2500 View all Dodge Ram 2500 Oil Caps

SHIPS FROM MANUFACTURER SD-FC-12V Sinister Diesel 89-98 Cummins 5.9L 12V Oil Fill Cap 1994-1998 Dodge Ram 2500 Base $98.66 Details

SHIPS FROM MANUFACTURER SD-FC-OIL Sinister Diesel 99-10 Ford Powerstroke 7.3L/6.0L/6.4L & 2007.5-19 Dodge Cummins 6.7L Oil Fill Ca 2007-2010 Dodge Ram 2500 ST 2007-2010 Dodge Ram 2500 SLT 2007-2010 Dodge Ram 2500 Laramie 2008-2010 Dodge Ram 2500 SXT 2010-2010 Dodge Ram 2500 TRX $115.49 Details

Dodge Ram 3500 View all Dodge Ram 3500 Oil Caps

SHIPS FROM MANUFACTURER SD-FC-12V Sinister Diesel 89-98 Cummins 5.9L 12V Oil Fill Cap 1994-1998 Dodge Ram 3500 Base $98.66 Details

SHIPS FROM MANUFACTURER SD-FC-OIL Sinister Diesel 99-10 Ford Powerstroke 7.3L/6.0L/6.4L & 2007.5-19 Dodge Cummins 6.7L Oil Fill Ca 2007-2010 Dodge Ram 3500 ST 2007-2007 Dodge Ram 3500 Sport 2007-2010 Dodge Ram 3500 SLT 2007-2010 Dodge Ram 3500 Laramie 2008-2009 Dodge Ram 3500 SXT $115.49 Details

Dodge W250 View all Dodge W250 Oil Caps

SHIPS FROM MANUFACTURER SD-FC-12V Sinister Diesel 89-98 Cummins 5.9L 12V Oil Fill Cap 1989-1993 Dodge W250 Base $98.66 Details

Dodge W350 View all Dodge W350 Oil Caps

SHIPS FROM MANUFACTURER SD-FC-12V Sinister Diesel 89-98 Cummins 5.9L 12V Oil Fill Cap 1989-1993 Dodge W350 Base $98.66 Details

Ford Sinister Diesel Engine Bay Caps

Ford E-350 Club Wagon View all Ford E-350 Club Wagon Oil Caps

SHIPS FROM MANUFACTURER SD-BCK-6.0 Sinister Diesel 03-07 Ford 6.0L Billet Blue Cap Kit 2004-2005 Ford E-350 Club Wagon XLT 2004-2005 Ford E-350 Club Wagon XL 2004-2005 Ford E-350 Club Wagon Chateau $274.99 Details

IN STOCK SD-FFC-6.0 Sinister Diesel 03-07 Ford 6.0L Fuel Filter Cap 2004-2005 Ford E-350 Club Wagon XL 2004-2005 Ford E-350 Club Wagon XLT 2004-2005 Ford E-350 Club Wagon Chateau $128.58 Details

Ford E-350 Super Duty View all Ford E-350 Super Duty Oil Caps

SHIPS FROM MANUFACTURER SD-BCK-6.0 Sinister Diesel 03-07 Ford 6.0L Billet Blue Cap Kit 2004-2007 Ford E-350 Super Duty Base 2006-2007 Ford E-350 Super Duty XLT 2006-2007 Ford E-350 Super Duty XL $274.99 Details

IN STOCK SD-FFC-6.0 Sinister Diesel 03-07 Ford 6.0L Fuel Filter Cap 2004-2007 Ford E-350 Super Duty Base 2006-2007 Ford E-350 Super Duty XLT 2006-2007 Ford E-350 Super Duty XL $128.58 Details

Ford E-450 Super Duty View all Ford E-450 Super Duty Oil Caps

SHIPS FROM MANUFACTURER SD-BCK-6.0 Sinister Diesel 03-07 Ford 6.0L Billet Blue Cap Kit 2004-2007 Ford E-450 Super Duty Base $274.99 Details

IN STOCK SD-FFC-6.0 Sinister Diesel 03-07 Ford 6.0L Fuel Filter Cap 2004-2007 Ford E-450 Super Duty Base $128.58 Details

Ford Excursion View all Ford Excursion Oil Caps

SHIPS FROM MANUFACTURER SD-BCK-6.0 Sinister Diesel 03-07 Ford 6.0L Billet Blue Cap Kit 2004-2005 Ford Excursion XLT 2004-2005 Ford Excursion XLS 2004-2005 Ford Excursion Limited 2004-2005 Ford Excursion Eddie Bauer $274.99 Details

IN STOCK SD-FFC-6.0 Sinister Diesel 03-07 Ford 6.0L Fuel Filter Cap 2004-2005 Ford Excursion XLT 2004-2005 Ford Excursion XLS 2004-2005 Ford Excursion Limited 2004-2005 Ford Excursion Eddie Bauer $128.58 Details

Ford F-250 View all Ford F-250 Oil Caps

SHIPS FROM MANUFACTURER SD-DC-FORD-94 Sinister Diesel 1994+ Ford Powerstroke Coolant Reservoir Degas Bottle Cap - Blue 1994-1996 Ford F-250 XLT 1994-1996 Ford F-250 XL 1995-1996 Ford F-250 Special 1995-1996 Ford F-250 Eddie Bauer $93.98 Details

Ford F-250 Super Duty View all Ford F-250 Super Duty Oil Caps

SHIPS FROM MANUFACTURER SD-DC-FORD-94 Sinister Diesel 1994+ Ford Powerstroke Coolant Reservoir Degas Bottle Cap - Blue 1999-2016 Ford F-250 Super Duty XL 1999-2016 Ford F-250 Super Duty XLT 1999-2016 Ford F-250 Super Duty Lariat 2004-2016 Ford F-250 Super Duty King Ranch 2004-2010 Ford F-250 Super Duty Harley-Davidson Edition 2008-2009 Ford F-250 Super Duty FX4 2013-2016 Ford F-250 Super Duty Platinum $93.98 Details

SHIPS FROM MANUFACTURER SD-OFC-FORD-03 Sinister Diesel 03-10 Ford Powerstroke 6.0L/6.4L Oil Filter Cap 2003-2010 Ford F-250 Super Duty XLT 2003-2010 Ford F-250 Super Duty XL 2003-2010 Ford F-250 Super Duty Lariat 2004-2010 Ford F-250 Super Duty King Ranch 2004-2010 Ford F-250 Super Duty Harley-Davidson Edition 2008-2009 Ford F-250 Super Duty FX4 $135.23 Details

SHIPS FROM MANUFACTURER SD-BCK-6.0 Sinister Diesel 03-07 Ford 6.0L Billet Blue Cap Kit 2003-2007 Ford F-250 Super Duty XLT 2003-2007 Ford F-250 Super Duty XL 2003-2007 Ford F-250 Super Duty Lariat 2004-2007 Ford F-250 Super Duty King Ranch 2004-2007 Ford F-250 Super Duty Harley-Davidson Edition $274.99 Details

IN STOCK SD-FFC-6.0 Sinister Diesel 03-07 Ford 6.0L Fuel Filter Cap 2003-2007 Ford F-250 Super Duty XL 2003-2007 Ford F-250 Super Duty XLT 2003-2007 Ford F-250 Super Duty Lariat 2004-2007 Ford F-250 Super Duty King Ranch 2004-2007 Ford F-250 Super Duty Harley-Davidson Edition $128.58 Details

IN STOCK - LOW SD-FFC08-01-20 Sinister Diesel 08-16 Ford Powerstroke 6.4/6.7L Fuel Cap 2008-2020 Ford F-250 Super Duty XLT 2008-2020 Ford F-250 Super Duty XL 2008-2020 Ford F-250 Super Duty Lariat 2008-2020 Ford F-250 Super Duty King Ranch 2008-2010 Ford F-250 Super Duty Harley-Davidson Edition 2008-2009 Ford F-250 Super Duty FX4 2013-2020 Ford F-250 Super Duty Platinum 2018-2020 Ford F-250 Super Duty Limited $92.11 Details

SHIPS FROM MANUFACTURER SD-BCK-6.4 Sinister Diesel 08-10 Ford 6.4L Billet Blue Cap Kit 2008-2010 Ford F-250 Super Duty XLT 2008-2010 Ford F-250 Super Duty XL 2008-2010 Ford F-250 Super Duty Lariat 2008-2010 Ford F-250 Super Duty King Ranch 2008-2010 Ford F-250 Super Duty Harley-Davidson Edition 2008-2009 Ford F-250 Super Duty FX4 $274.99 Details

SHIPS FROM MANUFACTURER SD-FFC-6.4 Sinister Diesel 08-10 Ford 6.4L Fuel Filter Cap 2008-2010 Ford F-250 Super Duty XLT 2008-2010 Ford F-250 Super Duty XL 2008-2010 Ford F-250 Super Duty Lariat 2008-2010 Ford F-250 Super Duty King Ranch 2008-2010 Ford F-250 Super Duty Harley-Davidson Edition 2008-2009 Ford F-250 Super Duty FX4 $138.04 Details

SHIPS FROM MANUFACTURER SD-FFC08-01-20-GRN Sinister Diesel 08-16 Ford Powerstroke 6.4/6.7L Fuel Cap- Green 2008-2020 Ford F-250 Super Duty XLT 2008-2020 Ford F-250 Super Duty XL 2008-2020 Ford F-250 Super Duty Lariat 2008-2020 Ford F-250 Super Duty King Ranch 2008-2010 Ford F-250 Super Duty Harley-Davidson Edition 2008-2009 Ford F-250 Super Duty FX4 2013-2020 Ford F-250 Super Duty Platinum 2018-2020 Ford F-250 Super Duty Limited $92.11 Details

IN STOCK - LOW SD-DC-6.7P-17 Sinister Diesel 17-19 Ford Powerstroke Coolant Reservoir Degas Bottle Cap - Blue 2017-2019 Ford F-250 Super Duty XLT 2017-2019 Ford F-250 Super Duty XL 2017-2019 Ford F-250 Super Duty Platinum 2017-2019 Ford F-250 Super Duty Lariat 2017-2019 Ford F-250 Super Duty King Ranch 2018-2019 Ford F-250 Super Duty Limited $93.98 Details

Ford F-350 View all Ford F-350 Oil Caps

SHIPS FROM MANUFACTURER SD-DC-FORD-94 Sinister Diesel 1994+ Ford Powerstroke Coolant Reservoir Degas Bottle Cap - Blue 1994-1997 Ford F-350 XLT 1994-1997 Ford F-350 XL 1995-1996 Ford F-350 Special 1995-1995 Ford F-350 Eddie Bauer 1997-1997 Ford F-350 Base $93.98 Details

Ford F-350 Super Duty View all Ford F-350 Super Duty Oil Caps

SHIPS FROM MANUFACTURER SD-OFC-FORD-03 Sinister Diesel 03-10 Ford Powerstroke 6.0L/6.4L Oil Filter Cap 2003-2010 Ford F-350 Super Duty King Ranch 2003-2010 Ford F-350 Super Duty Lariat 2003-2010 Ford F-350 Super Duty XL 2003-2010 Ford F-350 Super Duty XLT 2004-2010 Ford F-350 Super Duty Harley-Davidson Edition 2008-2009 Ford F-350 Super Duty FX4 $135.23 Details

SHIPS FROM MANUFACTURER SD-DC-FORD-94 Sinister Diesel 1994+ Ford Powerstroke Coolant Reservoir Degas Bottle Cap - Blue 1999-2016 Ford F-350 Super Duty Lariat 1999-2016 Ford F-350 Super Duty XL 1999-2016 Ford F-350 Super Duty XLT 2003-2016 Ford F-350 Super Duty King Ranch 2004-2010 Ford F-350 Super Duty Harley-Davidson Edition 2008-2009 Ford F-350 Super Duty FX4 2013-2016 Ford F-350 Super Duty Platinum $93.98 Details

SHIPS FROM MANUFACTURER SD-BCK-6.0 Sinister Diesel 03-07 Ford 6.0L Billet Blue Cap Kit 2003-2007 Ford F-350 Super Duty XLT 2003-2007 Ford F-350 Super Duty XL 2003-2007 Ford F-350 Super Duty Lariat 2003-2007 Ford F-350 Super Duty King Ranch 2004-2007 Ford F-350 Super Duty Harley-Davidson Edition $274.99 Details

IN STOCK SD-FFC-6.0 Sinister Diesel 03-07 Ford 6.0L Fuel Filter Cap 2003-2007 Ford F-350 Super Duty XLT 2003-2007 Ford F-350 Super Duty XL 2003-2007 Ford F-350 Super Duty Lariat 2003-2007 Ford F-350 Super Duty King Ranch 2004-2007 Ford F-350 Super Duty Harley-Davidson Edition $128.58 Details

SHIPS FROM MANUFACTURER SD-BCK-6.4 Sinister Diesel 08-10 Ford 6.4L Billet Blue Cap Kit 2008-2010 Ford F-350 Super Duty Lariat 2008-2010 Ford F-350 Super Duty King Ranch 2008-2010 Ford F-350 Super Duty Harley-Davidson Edition 2008-2009 Ford F-350 Super Duty FX4 2008-2010 Ford F-350 Super Duty XL 2008-2010 Ford F-350 Super Duty XLT $274.99 Details

SHIPS FROM MANUFACTURER SD-FFC-6.4 Sinister Diesel 08-10 Ford 6.4L Fuel Filter Cap 2008-2010 Ford F-350 Super Duty Lariat 2008-2010 Ford F-350 Super Duty King Ranch 2008-2010 Ford F-350 Super Duty Harley-Davidson Edition 2008-2009 Ford F-350 Super Duty FX4 2008-2010 Ford F-350 Super Duty XL 2008-2010 Ford F-350 Super Duty XLT $138.04 Details