Diesel Engine Parts & Accessories — Filters, Injectors, Turbos & More
Diesel engine parts for commercial vehicles, agricultural machinery, marine, and industrial plant. Injectors, turbos, gasket sets, head bolts, filters, and pump components — from a specialist who knows the application.
The diesel engine parts market is dominated by generalist suppliers who can list the part but can't advise on the application. When you're asking whether a particular injector is correct for a marine vs land-based application, or which gasket set is appropriate for a bored engine, a parts number alone isn't enough. You need someone who knows the engine.
Commercial Engines supplies diesel engine parts across the full range of commercial, agricultural, marine, and industrial applications. We supply injectors, turbochargers, gasket sets, head bolts, water pumps, oil pumps, timing components, filters, and ancillary parts — with the application knowledge to ensure you get the right part for your specific engine and use case.
The Right Part Requires More Than a Part Number
Diesel engine parts supply is straightforward when the part number is confirmed and the application is standard. It becomes complicated when engine variants exist, when parts have superseded numbers, when marine and land-based versions of the same engine use different specifications, or when a block has been bored and the standard piston no longer fits.
When you enquire with us, we don't just match a number — we check the application, the engine variant, and the history before confirming what you need. If there's a question mark, we raise it before the part is despatched, not after.
- Application confirmed before part is ordered
- Engine variant and specification checked
- Superseded part numbers traced and confirmed
- Marine and land-based variants distinguished
Core Parts Categories We Supply
Our parts range covers all the components most commonly required for diesel engine repair, rebuild, and preventative maintenance across commercial vehicle, agricultural, marine, and industrial applications.
- Fuel injectors and injector kits — Bosch, Delphi, Denso, and OEM-spec
- Turbochargers — reconditioned and new, all major brands
- Gasket sets — top-end, bottom-end, and full overhaul sets
- Head bolts and stud kits — torque-to-yield and conventional
- Pistons and piston rings — standard and oversize
- Bearings — main, big-end, and thrust bearings, all materials
- Oil pumps and water pumps — new and exchange
- Timing chains, belts, tensioners, and sprockets
- Oil and fuel filters — OEM-spec for all applications
- Cylinder head valves, guides, and seats
Parts When You Need Them — Not When It's Convenient
Diesel engine downtime caused by parts availability is a separate frustration from downtime caused by engine failure. We hold stock of the highest-turnover parts for common commercial diesel engine applications and offer same-day despatch on stocked components for orders placed before 12pm.
For parts that need sourcing, we'll give you an accurate lead time and a firm price before you commit. No 'we'll check and come back to you' that results in silence — we respond the same day with a clear answer.
- Same-day despatch on stocked parts before 12pm
- Accurate lead time on sourced parts — no guessing
- UK-wide next-day delivery as standard
- Technical advice on installation included
Turbocharger Supply & Exchange
We supply reconditioned and new turbochargers for commercial diesel engines across all major vehicle, plant, agricultural, and marine applications. Our turbocharger range covers Garrett, Holset, Borg Warner, IHI, and Mitsubishi units. We also operate a turbocharger exchange programme — your old unit returned as a core reduces the cost of the replacement. Call with the engine code and vehicle or machinery type and we'll confirm the correct turbocharger.
OEM vs Pattern vs Exchange — Parts Buying Made Simple
Three tiers of parts supply — the right choice depends on the application and the budget.
| Parts Type | Quality | Cost | Warranty | Best For |
|---|---|---|---|---|
| OEM / OE-spec | Highest | Highest | OEM warranty | Regulated or warranty-sensitive applications |
| Quality Pattern | Very good | Mid-range | 12 months | Most commercial repair applications |
| Exchange Recon | Very good | Lower | 6–12 months | Turbos, injectors, pumps — core return |
| Budget Pattern | Variable | Lowest | 3 months | Lower-value or temporary repairs |
*We'll advise on the appropriate parts specification for your application and explain the trade-offs honestly.
Engine Brands We Supply
We stock and supply engines from the world's leading diesel manufacturers. Call with a make, model, or engine code and we'll confirm availability and give you a fixed price.
Bosch / Delphi
OE-specification fuel injection components — injectors, pumps, and common rail parts for all major engines.
Garrett Turbos
New and reconditioned Garrett turbochargers for commercial vehicle, agricultural, and marine applications.
Holset
Cummins-approved Holset turbocharger supply — new and reconditioned across the Cummins engine range.
Perkins Parts
Gasket sets, pistons, bearings, and ancillaries for the Perkins 1000 and 1100 series engine range.
CAT / Cummins
OEM-spec and pattern parts for Caterpillar and Cummins engines across all commercial applications.
Marine Parts
Marine-specific parts — impellers, anodes, heat exchanger elements, and keel-cooling components.
Applications & Use Cases
Wherever a diesel engine is critical to operations — on the road, on the water, in the field, or in a plant room — we have the right engine for the job.
Commercial Vehicle Parts
HGV and LCV engine parts for repair and maintenance across all major brands.
Agricultural Parts
Tractor and combine engine parts — seasonal service and emergency repair supply.
Marine Engine Parts
Narrowboat, fishing vessel, and marine diesel parts — including heritage engine components.
Plant & Industrial Parts
Excavator, plant, and industrial engine components for on-site repair and rebuild.
Generator Parts
Genset and standby power engine parts for routine service and emergency repair.
Turbocharger Exchange
Turbo supply and exchange — core return pricing available on most common units.
I needed a turbocharger for a Perkins 1106 in a telehandler — the machine was on a job site. Commercial Engines identified the correct Holset unit from the engine code, confirmed it was in stock, and had it on site by 7am the following morning. Parts supply done properly.