Peterbilt 389 Exhaust Kits

P389-7-3 (2018-Current)

Full Diameter 7" Kit w/ DPF Stainless Steel Exhaust
Part NumberDescriptionQty
Y9007-E42-B11-2103Large Diameter SS Y Pipe1
L9007-E29-A24-21037" 90 Degree SS Elbow2
50-090535" Band Clamp4
50-02073Angled PB Clamp4
50-01073Staight PB Clamp2
14-BU4656Bushings8
14-022998Angled Cab Bracket2
14-062998Y Pipe Support Bracket2
1000220DPF Shift Bracket Assembly1
1000217DPF Shift Inlet Elbow1
1000228DPF Shift Outlet Elbow 11
1000229DPF Shift Outlet Elbow 21
1000142Silicone1

P389-7 (2011-2017)

Full Diameter 7" Kit w/ DPF Stainless Steel Exhaust
Part NumberDescriptionQty
Y9007-E42-B11-2103Large Diameter SS Y Pipe1
L9007-E29-A24-21037" 90 Degree SS Elbow2
50-090535" Band Clamp1
50-02073Angled Clamp4
50-00073Bracketless Clamp2
14-BU4656Bushings8
14-022998Angled Bracket2
1000077Shift Bracket, Rear1
1000076Shift Bracket, Front1
10000734" to 5" DPF Elbow1
10000725" DPF to Y Pipe1
10000695" Marman Seal2
10000684" Marman Seal1

P389-7-2

Full Diameter 7" Stainless Steel Glider Kit
Part NumberDescriptionQty
Y9007-E42-B11-2103Large Diameter SS Y Pipe1
L9007-E29-A24-21037" 90 Degree SS Elbow2
50-090535" Band Clamp1
50-02073Angled PB Clamp4
50-01073Straight PB Clamp2
14-BU4656Bushings8
14-022998Angled Cab Bracket2
14-062998Y Pipe Support Bracket2

Height Guide

Stack LengthTotal Height*
36"11' 6"
48"12' 6"
54"13' 0"
60"13' 6"
64"13' 10"**
68"14' 2"**

Total height is approximate. We recommend measuring your truck for exact height measurement.
**Denotes stack heights may be overheight and are not recommended by Lincoln Chrome.