Simms Diesel offers a 12-month or 20,000 km warranty from the date of invoice on new parts and exchange units. Please notify us of the warranty issue when first known, and do not apply warranty without our approval.

The warranty only applies to parts that are deemed defective, which will be replaced, credited or refunded (at the supplier's discretion) at no charge.

The defect must not result from any of the following:

  • Modification or adjustment to the product
  • Incorrect operation or use of the product
  • Contamination of the product by fuel, oil or other impurities
  • Misuse of the product in respect to the product specifications
  • Incorrect installation of the product

Please note the warranty applies to parts only, not labour costs.

Claim procedure

If a product is suspected to be faulty or defective, email sales@simmsdiesel.co.nz. Proof of purchase must be provided with an explanation of the issue and photos if available. We will then investigate and determine the outcome.