THREE DECADES OF DIESEL EXPERTISE Northern Diesel Injection is South Africa’s pre-eminent diesel injection systems repair specialist. We have has been providing timeous and cost-effective solutions to a demanding client base in the automotive, mining and agricultural sector for the last 30 years. We are a hands-on, family-owned and operated business that repairs all makes of diesel injection pumps, injectors and governors, and we provide a range of solutions for diesel injection-related problems both on and off-site.