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116868601850-0 - Northline Parts

Cummins ISX15/QSX15 12-Rib Fan Drive Belt 12PK2315 — 3100189

SKU: NLT2F02600
$88.99 In Stock
$88.99
Sale price  $88.99 Regular price 
Ships for free in 2–4 business days.
Aftermarket 12-rib fan-drive belt for compatible Cummins ISX15 and QSX15 engine applications; replaces 3100189, 12PK2315, 013216318, 356541C3, and 3682893 references.
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Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model
  • Cummins ISX15 engine applications using 3100189 / 12PK2315
  • Cummins QSX15 engine applications using 3100189 / 12PK2315

Product Overview

A belt with cracked ribs, glazing, frayed edges, rubber dust, or squeal should be replaced before it leaves a truck without cooling or accessory drive. This 12PK2315 belt matches the listed Cummins references for compatible ISX15/QSX15 drive layouts.

Belt routing and accessory configuration vary by chassis. Read the number on the old belt and inspect the tensioner, idlers, fan drive, and pulley alignment before installation.

Key Features & Performance

  • 12-rib multi-V belt
  • 12PK2315 size designation
  • For compatible ISX15/QSX15 accessory-drive layouts
  • Aftermarket replacement for 3100189 references

Replaces Part Numbers

  • 3100189
  • 12PK2315
  • 013216318
  • 356541C3
  • 3682893

Common Uses

  • Cracked or chunked belt ribs
  • Squeal or slip with good pulley alignment
  • Frayed belt edges
  • Preventive replacement during tensioner service

Technical Specifications

  • Product Type: Multi-rib fan drive belt
  • Rib Count: 12
  • Size Reference: 12PK2315
  • Engine Family: Cummins ISX15 / QSX15
  • Replacement Type: Aftermarket

Installation & Fitment

  • Record the routing before removing the old belt
  • Inspect tensioner travel, idlers, pulleys, and fan drive
  • Clean oil or coolant from the drive system
  • Seat every rib and recheck alignment after rotation

Compatibility Notice

ISX15/QSX15 engines use different belts by chassis and accessory package. Match the old belt number, 12 ribs, effective length, routing, fan drive, alternator, and air-conditioning arrangement.

Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.

Frequently Asked Questions

Q: Does this fit every ISX15 truck? A: No. Chassis and accessory-drive layout determine the correct belt.

Q: What does 12PK2315 mean? A: It identifies a 12-rib metric multi-V belt with the corresponding nominal length designation.

Q: Should the tensioner be replaced too? A: Replace it if it binds, wobbles, lacks tension, or is outside service limits.

Q: Why did the old belt wear on one edge? A: Pulley misalignment, bearing play, or an incorrect routing can push the belt sideways.

Part Summary

keywords: Cummins ISX15 fan belt, 3100189 belt replacement, 12PK2315 Cummins belt, QSX15 12 rib belt, 356541C3 cross reference, aftermarket heavy truck drive belt

Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.

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