4 Inch Diameter

4 Inch Air Intake Hoses

4 Inch Air Intake Pipes

4 Inch Brackets

4 Inch Clamps

4 Inch Couplers & Connectors

4 Inch Diverter Boxes

4 Inch Other Products

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M66-1124 Kenworth 4" Elbow for 1999-2000 T300

Grand Rock M66-1124 Kenworth T300 4" Elbow 90 degree 1999-2000 T300

MSRP: $460.08

$346.08

Grand Rock KW-6541-0320 Paccar Bellows Flex M66-7091-0320 or EBPB11861

MSRP: $363.00

$279.00

Grand Rock EBPB11862 or KW-6541-0335 Paccar Bellows EGR Exhaust

MSRP: $680.00

$319.00

Grand Rock EBPB11863 or M66-6541-0405 Paccar Kenworth Bellows EGR Pipe

MSRP: $739.00

$369.00

Grand Rock 4" 15 Degree Exhaust Elbow 4" x 4" ID-OD Aluminized L415-0404A

MSRP: $101.13

$73.13

Grand Rock 4" 15 Degree Exhaust Elbow 4" x 4" OD-OD Aluminized L415-0404SA

MSRP: $101.13

$73.13

Grand Rock 4" 30 Degree Aluminized Elbow with 4" Legs ID-OD L430-0404A

MSRP: $113.13

$73.13

Grand Rock 4" 30 Degree Aluminized Elbow with 4" Legs OD-OD L430-0404SA

MSRP: $103.13

$73.13

Grand Rock 4" Exhaust Elbow 45 Degree 6" x 6" Aluminized ID-OD L445-0606A

MSRP: $101.13

$73.13

Grand Rock 4" Exhaust Elbow 45 Degree 9" x 9" Aluminized ID-OD L445-0909A

MSRP: $101.00

$73.00

Grand Rock 4" Exhaust Elbow 45 Degree 9" x 9" ID-OD 409 Stainless Steel L445-0909S4

MSRP: $198.00

$142.00

Grand Rock 4" Exhaust Elbow 45 Degree 9" x 9" Aluminized OD-OD L445-0909SA

MSRP: $99.00

$71.00

633 products total