1078109 Manifold Rear-Rh Fits Caterpillar Models

One New Aftermarket Replacement Exhaust Manifold (Rear, Right-Hand) for Caterpillar (Cat) 3408 and 3412 Series Engines

This aftermarket replacement rear right-hand (RH) exhaust manifold fits Caterpillar 3408 and 3412 series V-configuration diesel engines. The rear exhaust manifold collects exhaust gases from the rear cylinders of the right bank and routes them to the turbocharger or exhaust system. Over time, manifolds can warp or crack due to extreme heat cycling, leading to exhaust leaks, power loss, and increased engine temperatures. Replacing a damaged manifold restores proper exhaust flow and engine performance. This part fits engines used in a wide range of Caterpillar heavy construction, earthmoving, and pipelayer equipment.

Compatible Models

Caterpillar Engines: 3408, 3408B, 3412

Caterpillar Construction and Earthmoving Equipment: 589 Track-Type Pipelayer, 631E Wheel Tractor-Scraper, 637E Wheel Tractor-Scraper, 651E Wheel Tractor-Scraper, 657E Wheel Tractor-Scraper, 988F Wheel Loader, D10N Track-Type Tractor, D9R Track-Type Tractor

Note: This is the rear right-hand (RH) manifold. Verify bank and position before ordering. The companion left-hand or alternate side manifold is a separate part.

Replaces Part Number(s):

1078109

New aftermarket replacement part - not remanufactured, not used.