

PPE 118062052 Exhaust Manifold to Up-Pipe Gasket (2017-2026 Duramax)
Fits: Chevrolet • GMC
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 PPE 118062052 Exhaust Manifold to Up-Pipe Gasket (2017-2026 Duramax) you will earn 16 DIESEL DOLLARS in your SDS Fuel Tank!
The PPE 118062052 is a single gasket for the exhaust manifold to up-pipe connection, the lower up-pipe gasket, on 2017-2026 Chevrolet Silverado and GMC Sierra 2500HD and 3500HD trucks with the L5P 6.6L Duramax. Its stainless steel multi-layer construction is made to give you a leak-free seal, and it works with both OEM and PPE manifolds.
Fitment
This gasket fits the L5P 6.6L Duramax in 2017-2026 Chevrolet Silverado 2500HD and 3500HD and GMC Sierra 2500HD and 3500HD, single or dual rear wheel. It seals the joint between the exhaust manifold and the up-pipe, and PPE lists it as compatible with both the OEM manifolds and PPE's own manifolds. The L5P spans the 2017-2019, 2020-2023 and 2024-and-newer truck generations, so verify by VIN or call us if you want a second check before you order. Shop all Duramax parts.
Why this part
On the L5P, exhaust leaves each bank through a manifold and an up-pipe on its way to the valley-mounted BorgWarner variable-geometry turbo. The lower up-pipe gasket seals the first joint in that path. When it fails, you have an exhaust leak at the manifold before the gas ever reaches the turbo.
Exhaust leaks are one of the causes to rule out when an L5P is throwing emissions-related faults, so a fresh gasket at this joint is a simple way to cross that off the list. PPE also offers a stainless up-pipe gasket set, 118062050, for leak repairs at the up-pipes. This 118062052 is the single lower gasket for when that one joint is all you need.
If you're opening the joint on a 2023 truck, look at the bolts too. GM bulletin 24-NA-253 traces exhaust rattles and leaks on some 2023 Silverado and Sierra 2500HD and 3500HD trucks to incorrect bolts used in previous repairs. Browse more exhaust parts if you're refreshing other joints.
What you get
- One PPE 118062052 exhaust manifold to up-pipe gasket (lower up-pipe gasket)
Specifications
- Part number: 118062052
- Position: exhaust manifold to up-pipe connection (lower up-pipe gasket)
- Construction: stainless steel multi-layer
- Quantity: single gasket
- Compatibility: OEM and PPE exhaust manifolds
About Pacific Performance Engineering
Pacific Performance Engineering was founded in 1985 in North Las Vegas, Nevada, and built its reputation on the 6.6L Duramax. High-flow exhaust manifolds and OEM-length replacement up-pipe kits are a big part of what PPE makes, alongside transmission, fuel system, cooling and steering parts for Duramax, Cummins and Powerstroke trucks.
Frequently asked questions
Is this one gasket or a set?
It's one gasket for the manifold to up-pipe connection, the lower up-pipe gasket. Count the joints you're opening and order one for each. For a full up-pipe leak repair, PPE also lists the 118062050 stainless up-pipe gasket set.
Will it work with aftermarket manifolds?
PPE lists it as compatible with both OEM manifolds and PPE manifolds. If you run another brand's manifold, call the shop and we'll check it before you order.
Why replace this gasket?
A leaking manifold to up-pipe joint is an exhaust leak, and exhaust leaks are one of the causes to rule out when chasing emissions-related faults on the L5P. The stainless steel multi-layer design is built to give you a leak-free seal.
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 PPE 118062052 Exhaust Manifold to Up-Pipe Gasket (2017-2026 Duramax) you will earn 16 DIESEL DOLLARS in your SDS Fuel Tank!


