Traditional

West Coast
Curve

Muscular new style from the heart of West Coast tradition speaking of everything custom and chrome. Highly suited to Monster Set ups™ the West Coast Curve looks awesome in the big bore sizes. The compact, well rounded shape is ideal on shorter stacks and its profile blends well with modern truck shapes. A top stack all round...the West Coast Curve goes there time and time again...

Non-Reduced Stacks 350 Series

WCCS7048 AP
7"
WCCS8048 AP
8"
While supplies last for wes coast curve truck stack 2

7” OD - PLAIN INLET

Stock Code Length
WCCS7036AP 36" (915mm)
WCCS7048AP 48" (1220mm)
WCCS7060AP 60" (1525mm)

8” OD - PLAIN INLET

Stock Code Length
WCCS8036AP 36" (915mm)
WCCS8048AP 48" (1220mm)
WCCS8060AP 60" (1525mm)

350C Series + ADBLUE Upgrade

Stock Code Length
This is a carefully applied coating that has been formulated to endure the acidic conditions the AdBlue creates. Generally applied to 350C Series when heat from the DPF is not an issue.
When ordering please add “-ADBL” to the end of the 350 code. i.e CRS7548AP-ADBL

REDUCED STACKS 350 series

WCRS7548 AP
7” > 5”
WCRS8548 AP
8” > 5”

7” OD > 5” OD - Plain Inlet

Stock Code Length
WCRS7530AP 30" (760mm)
WCRS7536AP 36" (915mm)
WCRS7548AP 48" (1220mm)
WCRS7554AP 54" (1370mm)
WCRS7560AP 60" (1525mm)
WCRS7564AP 64" (1625mm)

8” OD > 5” OD - Plain Inlet

Stock Code Length
WCRS8536AP 36" (915mm)
WCRS8548AP 48" (1220mm)
WCRS8554AP 54" (1370mm)
WCRS8560AP 60" (1525mm)
WCRS8564AP 64" (1625mm)

350C SERIES + ADBLUE UPGRADE

Stock Code Length
This is a carefully applied coating that has been formulated to endure the acidic conditions the AdBlue creates. Generally applied to 350C Series when heat from the DPF is not an issue.
When ordering please add “-ADBL” to the end of the 350 code. i.e CRS7548AP-ADBL

KW 2.1 CAB SERIES UPGRADE

Stock Code Length
The 2.1 Cab presents a different fitment and bracket system to all previous Kenworths. This upgrade includes the AdBlue protective armour combined with an inlet extension that is perfectly suited to the Kenworth 2.1 Cab Series models. (i.e. T610, T410) Available in all reduced sizes and styles in the Silverback range.
When ordering please add “-KWEXT” to the end of the 350 code. i.e CRS7548AP-KWEXT

REDUCED STACKS 650 series

WCRS7548 AP
7” > 5”
WCRS8548 AP
8” > 5”

7” OD > 5” OD - Plain Inlet

Stock Code Length
WCRS7530AP-650 30" (760mm)
WCRS7536AP-650 36" (915mm)
WCRS7548AP-650 48" (1220mm)
WCRS7554AP-650 54" (1370mm)
WCRS7560AP-650 60" (1525mm)
WCRS7564AP-650 64" (1625mm)

8” OD > 5” OD - Plain Inlet

Stock Code Length
WCRS8536AP-650 36" (915mm)
WCRS8548AP-650 48" (1220mm)
WCRS8554AP-650 54" (1370mm)
WCRS8560AP-650 60" (1525mm)
WCRS8564AP-650 64" (1625mm)

650C SERIES UPGRADE (Now Includes Curve Extension)

Stock Code Length
As temperatures can exceed 650C on EGR-DPF motors, we have improved this series to protect against discolouration from temperatures exceeding 650C. This is achieved by incorporating an inner sleeve with the AdBlue Upgrade to the full length of the stack (including the curve). This creates a multiphase proprietary system that prevents the chrome discolouring and provides an internal Armour to the corrosive effects of Urea Re-Agents. Available in all reduced sizes and styles in the Silverback range.

Join the Silverback legacy and become a leading beast in the pack!