Remanufactured vs New Diesel Injectors: Cost, Quality & Warranty Compared
Updated for 2026 diagnostics & repair guidance
When a diesel injector fails, you have three options: new OEM, remanufactured, or used. For most UK mechanics and vehicle owners, the real decision is between new and remanufactured. This guide breaks down the differences in cost, quality, warranty, and performance to help you make an informed decision.
Quick Summary
winner
Remanufactured for most applications
cost Saving
40-60% less than new OEM injectors
quality Difference
Minimal when all wear parts replaced and tested to OEM spec
warranty
Typically 12 months (same as new in most cases)
recommendation
Choose remanufactured unless under manufacturer warranty
Head-to-Head Comparison
| Criteria | Bosch | Delphi | Verdict |
|---|---|---|---|
| Price (per injector) | New OEM: £250-£450 | Remanufactured: £100-£250 | Remanufactured |
| Quality | Factory-new components throughout | All wear parts replaced. Body and solenoid housing reused if within tolerance | Draw |
| Warranty | 12-24 months manufacturer warranty | 12 months from reputable suppliers | New (marginally) |
| Availability | Can require 3-7 day lead time for some part numbers | Typically same-day dispatch from specialist suppliers | Remanufactured |
| Coding Required | Yes — new IMA code supplied | Yes — new IMA code generated during testing | Draw |
| Performance | Manufacturer-guaranteed delivery and spray pattern | Tested to identical OEM delivery and spray specifications | Draw |
| Environmental Impact | Full manufacturing footprint | 60-70% lower carbon footprint — components reused | Remanufactured |
Brand Overview
New OEM
Founded:
Market share: ~35% of UK replacement market
Technology: Factory-manufactured to original specification
OEM clients: Preferred by main dealers and vehicles under warranty
Remanufactured
Founded:
Market share: ~55% of UK replacement market
Technology: Stripped, cleaned, rebuilt with new wear parts, tested to OEM spec
OEM clients: Preferred by independent mechanics, fleet operators, and cost-conscious owners
Which Is Best for Your Engine?
BMW N47/B47
RemanufacturedHigh volume of N47 failures means excellent availability and competitive pricing.
Mercedes OM651
RemanufacturedCommon failure point with well-established remanufacturing process.
Ford Transit 2.2 TDCi
RemanufacturedCommercial vehicles benefit from 40-60% cost saving without compromising reliability.
Hyundai/Kia D4FB CRDi
EitherNew injectors are competitively priced for Korean vehicles. Compare quotes.
Fiat Ducato 2.3 MultiJet
RemanufacturedHigh-mileage commercial use makes the cost saving compelling.
VW CAYC 1.6 TDI
RemanufacturedExcellent availability due to high failure rates. Significant cost saving.
Ready to Replace?
Browse our range of UK-tested remanufactured injectors with 12-month warranty and free delivery.
Need it fast? Same-day dispatch on in-stock injectors.
Order before 2pm for next working day delivery (UK mainland). Call us on 020 3355 6581.
Engine-Specific Guides
Frequently Asked Questions
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Need Help Choosing the Right Injector?
Our diesel specialists can help you make the right decision. Call us or search by registration.