Home Belt Tensioner for Cummins 3.9L 5.9L engines

Belt Tensioner for Cummins 3.9L 5.9L engines

NOW £103.00
USUALLY £114.00 SAVE 9% (£11.00)
Or 4 interest-free payments of £25.75
In stock at 1 of our locations
🚛 Free NZ shipping
🔒 12 month warranty on all parts
NZ WOF compliant
🔧 Fitting available NZ wide

Belt Tensioner for Cummins 3.9L & 5.9L Engines

Includes:
- 1 x Belt Tensioner

Fits Models:
- Cummins 3.9L & 5.9L engines

Model Years:
- (omit if not available)

Submodels:
- Ram 2500, Ram 3500

Engine Options:
- Cummins 3.9L
- Cummins 5.9L

Description:
Durable belt tensioner replacement for Cummins 3.9L and 5.9L diesel applications. Maintains proper belt tension to ensure charging, cooling, and accessories operate reliably, reducing belt slip and wear.

Features:
- Designed for Cummins 3.9L & 5.9L engines
- Replaces worn or failing tensioner for improved belt alignment
- Helps prevent accessory drive belt issues and downtime

belt tensioner, Cummins, 3.9L, 5.9L, Ram 2500, Ram 3500, diesel, replacement part

Shipping Information

Most orders land in 5–12 business days. We'll keep you updated at every step of the journey.


The Kren Bits journey:

  • Order received — Day 0
  • With fulfilment — Day 1–2
  • Heading to courier — Day 2–4
  • Shipped — Day 3–7
  • Almost there — Day 5–10
  • Delivered — Day 5–14

Where your part ships from:

Your order ships from the closest warehouse with available stock across our six-warehouse network — NZ, AU, TH, UK, US, and CN.


We email you at every real milestone — order received, with fulfilment, heading to courier, shipped, almost there, delivered. No chasing, no vague waits.


For more details, visit our Track Your Order page.

Product Enquiry

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