Caterpillar C15 / 3406E / C16 / C18 OEM Cross-Reference & Part Lookup
The Caterpillar C15, C16, C18 and the legendary 3406E power millions of highway miles. Look up your Cat OEM part number to find the PAI-quality replacement.
How to use this page: Type your OEM, Cat, Cummins, Detroit, Mack, Volvo or competitor part number into the search box. The table filters instantly to the matching PAI replacement. Click View part to see price, fitment and availability. Not sure of fitment? Send us your engine serial number (ESN) and we'll confirm before you order.
Showing 20 Caterpillar C15 / 3406E / C16 / C18 parts
| OEM / Competitor Numbers | PAI # | Part | |
|---|---|---|---|
| 1S4295, 7H1558, 590GB321, 590GB321A | 331212 | Air Intake & Exhaust | View→ |
| 198-6068, 1986068 | 331213 | Air Intake & Exhaust | View→ |
| 3055171, 3349806 | 040016 | Connecting Rod | View→ |
| 9Y7212, 7E5455, 7C3517 | 331640 | Bearings | View→ |
| 2P0667, 1100348, 110-0348 | 331641 | Connecting Rod | View→ |
| 1355450, 135-5450 | 331740 | Cooling | Search 331740 |
| 7C2374, 1105096, 110-5096 | 331240 | Crankshaft | View→ |
| 1105097, 110-5097 | 331241 | Crankshaft | Search 331241 |
| 1OR8225, 0R8225 | 331840 | Cylinder Head | Search 331840 |
| 1077337, 107-7337 | 331940 | Engine Rebuild Kit | Search 331940 |
| 4N0699 | 331301 | Air Intake & Exhaust | View→ |
| 1426415, 142-6415 | 331540 | Fuel System | View→ |
| 1273171, 127-3171 | 331140 | Gaskets | View→ |
| 1105029, 110-5029 | 331141 | Gaskets | View→ |
| 1105810, 110-5810 | 331440 | Liners & Sleeves | View→ |
| 1413135, 141-3135 | 331441 | Liners & Sleeves | View→ |
| 7C6342, 1OR8042, 0R8042 | 331040 | Lubrication | Search 331040 |
| 1105749, 110-5749 | 331041 | Lubrication | Search 331041 |
| 1099124, 109-9124 | 331340 | Pistons & Rings | View→ |
| 1105032, 110-5032 | 331044 | Valvetrain | Search 331044 |
All parts are genuine PAI Industries with manufacturer warranty intact, cross-referenced to OEM specifications and shipped from JAK's Diesel. Heavy-duty diesel parts for owner-operators and fleets. Always verify your engine serial number before ordering — wrong-fit kits cannot be returned once opened.