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Donaldson Exhaust M085421
Sale

Donaldson Exhaust

M085421 Donaldson Muffler- Style 1

(4 reviews) Write a Review
$297.94
SKU:
M085421
UPC:
742330132166
Shipping:
Calculated at Checkout
INLET SIZE:
4"
OUTLET SIZE:
4"
BODY DIAMETER:
8.5"
BODY LENGTH:
34.37"
INLET:
END
OUTLET:
END
BODY SHAPE:
ROUND
STYLE:
1
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Description

M085421 Donaldson M085421-016-147 MUFFLER, Round, STYLE 1

Exhaust Mufflers Product Attributes
Inlet Diameter:  4.00 Inches (101.60 MM)
Outlet Diameter:  4.02 Inches (102.11 MM)
Body Diameter:  8.50 Inches (215.90 MM)
Body Length:  34.37 Inches (873.00 MM)
Overall Length:  40.00 Inches (1016.00 MM)
Rated Flow LR:  1212 CFM (34.2996 CMM)
Rated Flow MR:  1714 CFM (48.5062 CMM)
Rated Flow HR:  2099 CFM (59.4017 CMM)
Back Press LR:  1 In Hg (25.40 MM Hg)
Back Press MR:  2 In Hg (50.80 MM Hg)
Back Press HR:  3 In Hg (76.20 MM Hg)
Attenuation:  12-18 dBA
Primary Application:  FORD/NAVISTAR 7.3L
Primary Application:  POWER STROKE, GM/ISUZU 6.6L

 

 

Warranty Information

Manufacturer's Waranty

Reviews

4 Reviews

  • 5
    Awesome muffler

    Posted by Willy on Feb 5th 2022

    Sounds great super quiet Great for Towing

  • 5
    donaldson mo85421

    Posted by gary brown on May 29th 2021

    quieted truck down alot quieter than mbrp muffler

  • 5
    Quality and sound

    Posted by Jake Bulach on May 6th 2021

    I installed this 40" muffler on my 2015 Duramax after running deleted for 80,000 miles. The drone and cab noise at cetain RPMs were annoying for long drives. This muffler brought cab noise levels down just above factory, a nice tone. I could hold a convo easily before in the cab but now I can hear my child almost breathing while sleeping in his seat. I debated on the 51" muffler, It will not fit in a crew cab short 6.5' bed. It would be a tight fit in a crew cab long bed truck.

  • 5
    M085421

    Posted by Caije Nichols on Feb 19th 2021

    I have bought two of these mufflers and there GREAT!! One on a "13 F-350 6.7 diesel the other is on a "13 F-550 6.7 diesel. Both have good rubble to them without being obnoxiously load. Highly HIGHLY recommend this muffler for daily driver trucks.

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