BPS Cummins ISX / X15 Fractured Connecting Rod – 3689108

Keep that ISX / X15 making miles — this is the fractured rod that holds the bottom end together when the boost is up and the trailer is heavy.

A weak connecting rod does not give you a warning light. It gives you a hole in the block, a wrecker bill, and a truck that is not earning. The BPS 3689108 is built for the later Cummins ISX15 and X15 engines that use the fracture-split rod. That interlocking cap face is what keeps the big end round under high cylinder pressure. Cheap no-name rods and the wrong style rod are how these 15-liters come apart on the highway.

This is a direct replacement for Cummins 3689108 and 2882582. New pin bushing is already in. Identify it on the bench by the hole in the cap and the matching serial numbers on the rod and cap. Use fractured rod bearings only. A saw-cut bearing in this rod is a spun-bearing waiting to happen.

If you are in a 2012–2018 ISX15 / X15 and the rod in your hand is fractured, this is the one that gets the truck back on the clock without dealer pricing. Grab a single for one hole, or take the set of 6 and do the job once.

Key Features

• Fracture-split cap built for high-load ISX15 / X15 duty
• Direct replacement for Cummins 3689108 / 2882582
• Matched, serialized rod and cap
• New pin bushing installed and ready to hang
• Requires fractured connecting rod bearings only
• Available as a single rod or complete set of 6

OEM Cross References
3689108, 2882582, 3686171, 171639, 2882582NX, 3689108NX, 3689108RX

Applications
Cummins ISX15, X15, and QSX15 — primarily 2012–2018 CM2250 / CM2350 engines with the fractured rod. Confirm the rod in the engine before ordering.

Saw-cut style ISX / QSX rods are BPS 4059429.