Signature 389 Exhaust Kits

P389-8-4 (2018-Current)

Full  8"  DPF Shift Kit 
Part Number Description Qty
Y9008-E48-B15-1103 8" Full Y Pipe 1
L9008-E29-A24-1103 8" Full Diameter 90 Degree Elbow 2
50-09053 5" Band Clamp 4
50-02083 Angled PB Clamp 4
50-01083 Staight PB Clamp 2
14-BU4656 Package of 8 Bushings 1
14-022998 Angled Cab Bracket 2
14-062998 Y Pipe Support Bracket 2
1000220 DPF Shift Bracket Assembly 2
1000217 DPF Shift Inlet Elbow 1
1000228 DPF Shift Outlet Elbow 1 1
1000229 DPF Shift Outlet Elbow 2 1
1000142 Silicone 1

P389-7-4 (2018-Current)

Full  7"  DPF Shift Kit 
Part Number Description Qty
Y9007-E48-B15-1103 7" Full Y Pipe 1
L9007-E29-A24-1103 7" Full Diameter 90 Degree Elbow 2
50-09053 5" Band Clamp 4
50-02073 Angled PB Clamp 4
50-01073 Staight PB Clamp 2
14-BU4656 Package of 8 Bushings 1
14-022998 Angled Cab Bracket 2
14-062998 Y Pipe Support Bracket 2
1000220 DPF Shift Bracket Assembly 2
1000217 DPF Shift Inlet Elbow 1
1000228 DPF Shift Outlet Elbow 1 1
1000229 DPF Shift Outlet Elbow 2 1
1000142 Silicone 1

P389-6-4 (2018-Current)

Full 6"  DPF Shift Kit 
Part Number Description Qty
Y9006-E48-B15-1103 Large 6" Diameter Y Pipe 1
L9006-E29-A24-1103 6" 90 Degree Elbow LD 2
50-09053 5" Band Clamp 4
50-02063 Angled PB Clamp 4
50-01063 Staight PB Clamp 2
14-BU4656 Package of 8 Bushings 1
14-022998 Angled Cab Bracket 2
14-062998 Y Pipe Support Bracket 2
1000220 DPF Shift Bracket Assembly 2
1000217 DPF Shift Inlet Elbow 1
1000228 DPF Shift Outlet Elbow 1 1
1000229 DPF Shift Outlet Elbow 2 1
1000142 Silicone 1

P389-5-4 (2018-Current)

5" DPF Kit 
Part Number Description Qty
Y9005-E60-A16-1103 Large 5" Diameter Y Pipe 1
L9005-E29-A24-1103 5" 90 Degree Elbow LD 2
50-02053 Angled PB Clamp 4
50-01053 Straight PB Clamp 2
14-BU4656 Package of 8 Bushings 1
14-022998 Angled Cab Bracket 2
14-062998 Y Pipe Support Bracket 2
1000142 Silicone 1

P389-7 (2011-2017)

Full 7" Kit w/ DPF Chrome Plated Stainless Steel
Part Number Description Qty
Y9007-E42-B11-2103 Large Diameter SS Y Pipe 1
L9007-E29-A24-2103 7" 90 Degree SS Elbow 2
50-09053 5" Band Clamp 1
50-02073 Angled Clamp 4
14-BU4656 Package of 8 Bushings 1
14-022998 Angled Bracket 2
14-062998 Y Pipe Suport Bracket 2
50-01073 Straight Clamp 2
1000077 Shift Bracket, Rear 1
1000076 Shift Bracket, Front 1
1000073 4" to 5" DPF Elbow 1
1000072 5" DPF to Y Pipe 1
1000069 5" Marman Seal 2
1000068 4" Marman Seal 1
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P389-8-5 (2018-Current)

8"-5" DPF Shift Kit
Part Number Description Qty
Y9005-E60-A16-1103 Large 5" Diameter Y Pipe 1
L9008-E29-B20-1103 90 Degree Elbow 8-5" 2
50-09053 5" Band Clamp 4
50-02083 Angled PB Clamp 4
50-01053 Straight PB Clamp 2
14-BU4656 Package of 8 Bushings 1
14-022998 Angled Cab Bracket 2
14-062998 Y Pipe Support Bracket 2
1000220 DPF Shift Bracket Assembly  2
1000217 DPF Shift Inlet Elbow 1
1000228 DPF Shift Outlet Elbow 1  1
1000229 DPF Shift Outlet Elbow 2 1
1000142 Silicone 1

P389-7-5 (2018-Current)

7"-5" DPF Shift Kit
Part Number Description Qty
Y9005-E60-A16-1103 Large 5" Diameter Y Pipe 1
L9007-E29-B20-1103 90 Degree Elbow 7-5" 2
50-09053 5" Band Clamp 4
50-02073 Angled PB Clamp 4
50-01053 Straight PB Clamp 2
14-BU4656 Package of 8 Bushings 1
14-022998 Angled Cab Bracket 2
14-062998 Y Pipe Support Bracket 2
1000220 DPF Shift Bracket Assembly  2
1000217 DPF Shift Inlet Elbow 1
1000228 DPF Shift Outlet Elbow 1  1
1000229 DPF Shift Outlet Elbow 2 1
1000142 Silicone 1

P389-6-5 (2018-Current)

6"-5" DPF Shift Kit
Part Number Description Qty
Y9005-E60-A16-1103 Large 5" Diameter Y Pipe 1
L9006-E29-B20-1103 6"-5" 90 Degree Elbow LD 2
50-09053 5" Band Clamp 4
50-02063 Angled PB Clamp 4
50-01053 Straight PB Clamp 2
14-BU4656 Package of 8 Bushings 1
14-022998 Angled Cab Bracket 2
14-062998 Y Pipe Support Bracket 2
1000220 DPF Shift Bracket Assembly  2
1000217 DPF Shift Inlet Elbow 1
1000228 DPF Shift Outlet Elbow 1  1
1000229 DPF Shift Outlet Elbow 2 1
1000142 Silicone 1

P389-7-3 (2018-Current)

Full  7" Kit w/ DPF Chrome Plated Stainless Steel 
Part Number Description Qty
Y9007-E42-B11-2103 Large Diameter SS Y Pipe 1
L9007-E29-A24-2103 7" 90 Degree SS Elbow 2
50-09053 5" Band Clamp 4
50-02073 Angled PB Clamp 4
50-01073 Staight PB Clamp 2
14-BU4656 Package of 8 Bushings 1
14-022998 Angled Cab Bracket 2
14-062998 Y Pipe Support Bracket 2
1000220 DPF Shift Bracket Assembly 2
1000217 DPF Shift Inlet Elbow 1
1000228 DPF Shift Outlet Elbow 1 1
1000229 DPF Shift Outlet Elbow 2 1
1000142 Silicone 1
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P389-7-2

Full Diameter 7" Stainless Steel Glider Kit
Part Number Description Qty
Y9007-E42-B11-2103 Large Diameter SS Y Pipe 1
L9007-E29-A24-2103 7" 90 Degree SS Elbow 2
50-09053 5" Band Clamp 1
50-02073 Angled PB Clamp 4
50-01073 Straight PB Clamp 2
14-BU4656 Package of 8 Bushings 1
14-022998 Angled Cab Bracket 2
14-062998 Y Pipe Support Bracket 2
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PETE8

8" Peterbilt Dummy Exhaust Kit
Part Number Description Qty
L9008-E29-A24-1103 8" 90 Degree Elbow 2
14-022998 Angled Bracket 2
50-02083 8" Angled Clamp 4
50-01083 8" Staight Clamp 2
14-062998 Y Pipe Support Bracket 2
14-BU4656 Package of 8 Bushings 1
1000142 Silicone 1

PETE6

6" Peterbilt Dummy Exhaust Kit
Part Number Description Qty
L9006-E29-A24-1103 6" 90 Degree Elbow 2
14-022998 Angled Bracket 2
50-02063 6" Angled Clamp 4
50-01063 Staight PB Clamp 2
14-062998 Y Pipe Support Bracket 2
14-BU4656 Package of 8 Bushings 1
1000142 Silicone 1
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PETE7

7" Peterbilt Dummy Exhaust Kit
Part Number Description Qty
L9007-E29-A24-1103 7" 90 Degree Elbow 2
14-022998 Angled Bracket 2
50-02073 7" Angled Clamp 4
50-01073 Staight PB Clamp 2
14-062998 Y Pipe Support Bracket 2
14-BU4656 Package of 8 Bushings 1
1000142 Silicone 1

PETE5

5" Peterbilt Dummy Exhaust Kit
Part Number Description Qty
L9005-E29-A24-1103 5" 90 Degree Elbow 2
14-022998 Angled Bracket 2
50-02053 5" Angled Clamp 4
50-01053 Staight PB Clamp 2
14-062998 Y Pipe Support Bracket 2
14-BU4656 Package of 8 Bushings 1
1000142 Silicone 1
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