
MAHLE MS19225 Exhaust Manifold Gasket Set (1998.5-2018 5.9/6.7L Cummins)
Fits: Cummins 24V (1998.5-2002 5.9L Cummins) • Cummins 6.7L (2007.5-2012 Cummins) • Cummins 6.7L (2013-2018 Cummins) • Cummins CR (2003-2007 5.9L Cummins)
Diesel Dollars is Southern Diesel Supply's Loyalty Program. Purchasing with Us Earns you 1 Point for every 1 Dollar spent to use for future buys!
By ordering the MAHLE MS19225 Exhaust Manifold Gasket Set (1998.5-2018 5.9/6.7L Cummins) you will earn 17 DIESEL DOLLARS in your SDS Fuel Tank!
The MAHLE MS19225 Exhaust Manifold Gasket Set seals the exhaust manifold to the cylinder head on 1998.5-2018 Dodge Ram and Ram trucks with the 5.9L or 6.7L Cummins. You get six OE-style gaskets for the manifold-to-head mating surfaces, so the manifold goes back on with all new seals after a crack, stud or bolt repair.
Fitment
MAHLE lists the MS19225 as a direct replacement for these Cummins engines:
- 1998.5-2002 5.9L Cummins 24-valve (Dodge Ram 2500 and 3500)
- 2003-2007 5.9L Cummins common-rail
- 2007.5-2012 6.7L Cummins
- 2013-2018 6.7L Cummins (Ram 2500 and 3500)
It is not listed for the 1989-1998 12-valve or for 2019 and newer 6.7L engines; for 2019-2024, MAHLE lists the MS20645 set. The 6.7L chassis cabs share the engine but use different exhaust routing, so verify those separately. Verify fitment by VIN or call us.
Why this part
The factory cast-iron exhaust manifold is a known weak spot on the 24-valve and the 6.7L, and every manifold repair ends with new gaskets at the head.
On 1998.5-2002 24-valves, the manifold cracks from heat cycling across the long inline-six span. Expect a loud ticking or knocking that rises with engine speed, an exhaust smell and soot streaks. Leaks at the manifold-to-head joint and the turbo flange follow a warped manifold, and they need prompt repair before the cracks spread.
On 2007.5-2009 6.7L trucks, the manifold studs can break and the cast manifold can crack. Watch for a tick at cold start that fades when warm, soot streaks at the manifold or turbo flange and lost boost. On 2010-2018 trucks, the cast manifold shrinks through heat cycles, even on stock trucks. That snaps manifold bolts and leaks exhaust at the head, with a cold-start tick, exhaust smell in the cab and soot at the flange.
Whichever problem you are fixing, replace the gaskets when the manifold comes off. If you are moving to a 3-piece slip-joint, one-piece stainless or webbed aftermarket manifold to stop the cracking or shrinkage, confirm with the manifold maker which gaskets it calls for.
What you get
- Sold As Set Of 6
- OE Style Direct Replacement
The set includes 6 gaskets for the exhaust manifold to cylinder head mating surfaces. Turbocharger mounting gasket not included.
Manufacturer warranty: 1 Year Limited
About MAHLE
MAHLE traces back to 1920 and a small engine shop in Stuttgart, Germany, where it built its name on pistons. Its sealing line covers exhaust, turbo and intake gaskets along with head gaskets, head sets and complete engine gasket sets. We stock MAHLE for Cummins, Duramax and Power Stroke on our MAHLE brand page.
Frequently asked questions
How many gaskets are in the set?
Six, for the exhaust manifold to cylinder head mating surfaces. The turbocharger mounting gasket is not included, so order that separately if the turbo is coming off.
My 6.7L ticks on a cold start. Will new gaskets fix it?
Not always. On 2010-2018 trucks, manifold shrinkage snaps the manifold bolts, and on 2007.5-2009 trucks the studs can break and the manifold can crack. Check the bolts, studs and manifold before you only swap gaskets.
What is the warranty?
The manufacturer warranty is 1 Year Limited.
Questions on fitment? Call the shop at the number in the header. We install everything we sell.
Diesel Dollars is Southern Diesel Supply's Loyalty Program. Purchasing with Us Earns you 1 Point for every 1 Dollar spent to use for future buys!
By ordering the MAHLE MS19225 Exhaust Manifold Gasket Set (1998.5-2018 5.9/6.7L Cummins) you will earn 17 DIESEL DOLLARS in your SDS Fuel Tank!


