Freightliner Exhaust 2002 & Up

Freightliner Exhaust Systems -

There are many options and combinations. Some part cross-reference with an OE #.
Mercedes Diesel Engine Pipes / Mufflers 4 & 6 Cyl.
Engine Pipes - See below for diagrams
SBP Engine Pipe
Engine Pipe OE#
Cyl.
XFRLMTP
04-20964-000
6
XFRLMTP2
04-22451-000
6
XFRLMTP3
04-22450-000
6
XFRLTT
04-21077-000
6
XFRLTT2
04-21076-000
4

Offset In - Offset Out

Center In - Center Out
Regular Mufflers (all 36" Body Length x 11" Diameter)
XFRLM4 or XFRLMERCT6M - 4" ID In, 4" ID Out
XFRLM6 - 4" ID In, 4" ID Out
XFRLM3 - 3" ID In, 4" ID Out
XFRLM5 - 3" ID In, 4" ID Out
Catalytic Mufflers (all 36" Body Length)
XFRLMCM - 4" ID In, 4" ID Out, 11" Dia.
XFRLMBC - 8" Dia., 3" ID In, 4" ID Out - B series Cummins 98 Up
XFRLM3C1 - 11" Dia., 3" ID In, 4" ID Out - Cat 3126 & Mercedes
XFRLMTP - OE# 04-20964-000
XFRLMTP2 - OE# 04-22451-000
XFRLMTP3 - OE# 04-22450-000
XFRLTT - OE# 04-21077-000
XFRLTT2 - 4 cyl. only - OE# 04-21076-000
Freightliner Exhaust - Muffler Back Rear Exit Exhaust System
Extension Pipe - Most systems
Overaxle Pipe
Tailpipe Rear Exit - Most Systems
XT400-12E
XFRLOAASO2 - Air Suspension OE# 04-21453-000
XFRLTPO2
OE# 04-21455-108
* Side Exit Exhaust Below
XFRLOAS4- Air Suspension OE# 04-22434-000
XFRLOAS5- Saf-T-Liner EF- 2004 & Up w. Air Suspension
*Other Tailpipes at Bottom of Page
XFRLOAS3 - Spring Suspension OE# 04-22433-000
Freightliner Exhaust - Left or Right Side Bumper Exit Overaxle Pipes
XFRLAX2- Right Side Exit, Spring Susp. w/ Side or Rear Fuel Tank
XFRLOAFT - Left Side Exit used w/ Rear Fuel Tank
XFRLAX1 - Right Side Exit Air Ride Susp. w/ Side or Rear Fuel Tank
XFRLOARFT2 - Left Side Exit Air Susp. w/ Rear Tank
XFRLOAAS3 - Right Side Exit Air Ride Susp. - Flat spot at top of rise
Freightliner Exhaust - Side Bumper Exit Tailpipes / Extensions
XFRL4TP or XFRLT1 - Tailpipe L or R side exit
XFRLUB - Extension for exit under rear bumper
XFRLTB - Extension for exit thru rear bumper
CALL US TOLL FREE - U.S. - East (PA): 1-800-523-6000, Midwest : 1-800-234-2829
Southwest (TX): 1-888-769-7769, West (CA): 1-800-835-6556, CANADA: 1-800-461-7660