Find the right new JCB 444 DieselMax / EcoMax replacement engine for your machine. Select your machine type below to see compatible engines from our stock.
| Machine | Tier | Approx. Years | Compatible Engine | Notes |
|---|---|---|---|---|
| 3CX (14ft) | Tier 2 | 2005 – ~2009 | JCB 444 63kW NA 12V | Naturally aspirated, mechanical |
| 3CX Sitemaster | Tier 2 | 2005 – ~2009 | JCB 444 74kW Turbo 12V | Turbocharged, mechanical |
| 3CX | Tier 3 | ~2009 – ~2014 | JCB 444 68kW Turbo T3 | Mechanical injection |
| 3CX (higher output) | Tier 3 | ~2009 – ~2014 | JCB 444 74kW TCA T3 | TCA, mechanical injection |
| 3CX / 3CX Rental | Tier 4i | ~2014 – ~2019 | JCB 444 55kW T4i 24V | Base / rental spec (74hp) |
| 3CX Sitemaster / Super | Tier 4i | ~2014 – ~2019 | JCB 444 68kW T4 12V | 91hp — Sitemaster optional, Super standard |
| 3CX Contractor | Tier 4i | ~2014 – ~2019 | JCB 444 81kW T4i | 109hp Contractor / Contractor Pro |
| 3CX | T4 Final | ~2019+ | JCB 444 55kW T4F | Base spec (74hp), DOC + DPF |
| 3CX Super / Contractor | T4 Final | ~2019+ | JCB 444 68kW T4F · 81kW T4F | 68kW Super, 81kW Contractor — confirm serial |
| 3CX Compact | Tier 4i | ~2015+ | JCB 444 55kW T4i 24V | 24V electrics |
| 4CX | Tier 2 | 2005 – ~2009 | JCB 444 74kW Turbo 12V | Turbocharged, mechanical |
| 4CX | Tier 3 | ~2009 – ~2014 | JCB 444 74kW TCA T3 | TCA, mechanical injection |
| 4CX | Tier 4i | ~2014 – ~2019 | JCB 444 81kW T4i | Electronic injection |
| 4CX | T4 Final | ~2019+ | JCB 444 81kW T4F | Electronic, DOC + DPF |
| Machine | Tier | Compatible Engine | Notes |
|---|---|---|---|
| 526-56 | Tier 3 | JCB 444 68kW Turbo T3 | Compact telehandler |
| 531-70 | Tier 2 | JCB 444 74kW Turbo 12V | |
| 531-70 | Tier 3 | JCB 444 68kW Turbo T3 · 74kW TCA T3 | Depends on spec |
| 533-105 | Tier 2 T3 | JCB 444 74kW Turbo 12V · 74kW TCA T3 | 74–81kW depending on spec |
| 535-95 | Tier 2 | JCB 444 63kW NA 12V · 74kW Turbo 12V | 63kW base, 74kW turbo option |
| 535-95 | Tier 3 | JCB 444 74kW TCA T3 | |
| 535-95 | Tier 4i | JCB 444 81kW T4i | Electronic injection |
| 535-125 | Tier 2 T3 | JCB 444 93kW TCA Mechanical | Hi-Viz variant available |
| 535-125 | Tier 4i | JCB 444 81kW T4i · 93kW T4i | Depends on spec |
| 536-60 | Tier 2 T3 | JCB 444 68kW Turbo T3 · 74kW TCA T3 | |
| 536-70 | Tier 2 T3 | JCB 444 74kW Turbo 12V · 74kW TCA T3 | |
| 540-140 | Tier 2 | JCB 444 63kW NA 12V · 74kW Turbo 12V | 63kW NA or 74kW turbo depending on spec |
| 540-140 | Tier 3 | JCB 444 74kW TCA T3 · 97kW eT3 | 74kW standard, 97kW high-output option |
| 540-140 | T4F / Stage V | JCB 444 55kW T4F · 81kW T4F | Current: 55kW (75hp). Earlier T4i: 81kW option |
| 540-170 | Tier 3 | JCB 444 97kW eT3 Electronic | Electronic common rail |
| 540-170 | Tier 4i | JCB 444 81kW T4i · 93kW T4i | Both power ratings available — confirm serial |
| 540-200 | Tier 3 | JCB 444 120kW eT3 Electronic | Highest output 444 |
| 541-70 | Tier 2 | JCB 444 74kW Turbo 12V | |
| 541-70 | Tier 3 | JCB 444 74kW TCA T3 |
| Machine | Tier | Compatible Engine | Notes |
|---|---|---|---|
| 531-70 Agri | Tier 2 T3 | JCB 444 74kW Turbo 12V · 74kW TCA T3 | Base agricultural model |
| 535-95 Agri | Tier 2 T3 | JCB 444 74kW Turbo 12V · 74kW TCA T3 | Standard Agri spec (100hp) |
| 535-95 Agri Plus | Tier 3 | JCB 444 97kW TCA | 130hp — confirmed from JCB spec sheet |
| 535-95 Agri Super | Tier 3 | JCB 444 97kW TCA | 130hp early models. Later Agri Super uses JCB 448 (4.8L) at 108kW — not a 444 |
| 536-60 Agri | Tier 2 T3 | JCB 444 74kW Turbo 12V · 74kW TCA T3 | |
| 541-70 Agri | Tier 2 T3 | JCB 444 74kW Turbo 12V · 74kW TCA T3 |
| Machine | Compatible Engine | Notes |
|---|---|---|
| 411 / 411HT | JCB 444 81kW EcoMAX T4F | 4.4L, 109hp. Earlier 411HT (T3): 97kW TCA |
| 416HT | JCB 444 97kW TCA | 4.4L, Tier 3 (2007–2012) |
| 417 / 417HT | JCB 444 93kW EcoMAX T4F | 4.4L, 125hp, variable geometry turbo |
| TM220 | JCB 444 55kW T4i | Telescopic wheel loader, hydrostatic drive |
| TM320 | JCB 444 93kW EcoMAX T4F | 4.4L, 125hp. Earlier T3 models: 97kW TCA |
Not JCB 444 engines: The 406, 407, 409 use Kohler KDI 2504 engines. The 437HT uses a JCB 6.7L 6-cylinder. The TM420 and 417 Agri Stage V use the JCB 448 (4.8L). These are not compatible with JCB 444 engines.
| Machine | Tier | Compatible Engine | Notes |
|---|---|---|---|
| 516-40 | Tier 4i | JCB 444 55kW T4i | Telescopic forklift |
| 930 / 940 | Tier 3 | JCB 444 63kW TC | 84hp, mechanical injection (2009–2014) |
| 930 / 940 | T4 Final | JCB 444 55kW EcoMAX T4F | 74hp, electronic injection |
| Machine | Compatible Engine | Notes |
|---|---|---|
| JCB 225 | JCB 444 55kW EcoMAX | Large platform, T4F |
| JCB 260 / 260T | JCB 444 63kW TC | 84hp at 2400rpm. T variant = tracked |
| JCB 270 | JCB 444 55kW TCAE | Electronic injection, T4F |
| JCB 280 | JCB 444 63kW TC | 84hp at 1800rpm |
| JCB 300 / 300T | JCB 444 68kW Turbo | T variant = tracked |
| JCB 320T / 330 | JCB 444 68kW Turbo | Large platform models |
| Volvo MC110C / MC115C / MC125C | JCB 444 63kW TC | JCB-manufactured for Volvo, 84hp T3 |
| Volvo MC135C / MC155C | JCB 444 68kW TC | JCB-manufactured for Volvo, 92hp T3 |
| Volvo MCT110C / MCT125C | JCB 444 55kW TCAE | Compact track loader, electronic injection |
| Volvo MCT135C / MCT145C | JCB 444 68kW TC | Compact track loader, 68kW |
Not JCB 444 engines: JCB small platform skid steers (135, 155, 175, 190, 205) use Kohler engines, not the JCB 444. Volvo MC60C, MC70C, MC85C, MC95C also use non-JCB engines.
| Machine | Compatible Engine | Notes |
|---|---|---|
| 6T-1 / 6T-1 ST | JCB 444 55kW EcoMAX T4F | 74hp, front tip and swivel tip variants |
| 9T-1 | JCB 444 55kW EcoMAX T4F | 74hp |
| 714 | JCB 444 63kW NA · 68kW Turbo T3 | Older site dumper range |
| 718 | JCB 444 68kW Turbo T3 · 81kW T4i | |
| 722 | JCB 444 81kW T4i |
| Machine | Type | Compatible Engine |
|---|---|---|
| Sellick S60 / S80 / S100 / S120 | Forklift | JCB 444 55kW T4F |
| Anaconda DF410 / TD516 / SR514 | Screening / crushing | JCB 444 — mechanical & electronic variants |
The JCB 444 is supplied as an OEM power unit to several equipment manufacturers. If your machine uses a JCB 444 but isn't listed here, contact us with your engine data plate details and we'll match it.
The letter code on your JCB engine data plate identifies the aspiration and fuel system type:
Common questions about JCB 444 engines, compatibility and replacement options
The JCB 3CX uses a JCB 444 4.4-litre diesel engine. The exact specification depends on the sub-model and emission tier: the 3CX base model uses a 55kW naturally aspirated or turbocharged engine, the 3CX Sitemaster offers 55kW or 68kW options, the 3CX Super uses a 68kW turbo, and the 3CX Contractor uses an 81kW turbocharged aftercooled engine.
JCB DieselMax is the brand name for Tier 2 and Tier 3 versions of the JCB 444 engine, using mechanical fuel injection.
JCB EcoMax is the Tier 4i and Tier 4 Final version, featuring electronic fuel injection and emissions after treatment to meet stricter regulations. Both are 4.4-litre four-cylinder diesel engines.
The JCB 444 is a 4.4-litre (4,399cc) four-cylinder diesel engine. It is available in naturally aspirated, turbocharged, and turbocharged after-cooled configurations with power outputs ranging from 55kW (74hp) to 97kW (130hp) depending on the variant.
The JCB 444 engine is fitted across a wide range of JCB machinery including backhoe loaders (3CX, 4CX), construction and agricultural telehandlers (530-70, 535-95, 535-125, 540-140, 540-170, 541-70), wheel loaders (416HT, 417HT, 426, 436, 437), skid steer loaders (225, 260, 270, 280, 300, 330), forklifts (TLT30, 940, 950), and dumpers (714, 718, 722, 726).
In many cases yes, but it depends on the specific machine and wiring loom compatibility. Tier 2 to Tier 3 is generally straightforward as both use mechanical fuel injection.
Upgrading from mechanical (Tier 2/3) to electronic (Tier 4i/T4F) requires additional consideration of the engine harness and ECU. Contact Timik Engines for advice on your specific application.
The JCB 444 is a 4.4-litre engine producing up to 97kW (130hp). The JCB 448 is a larger 4.8-litre engine used in higher-output applications above 97kW, such as the JCB 535-95 Agri Super (later models at 108kW) and larger wheel loaders like the 437HT and TM420. The two engines are not interchangeable.
Timik Agricultural Ltd, Church House Farm, Clewers Hill, Waltham Chase, Southampton, SO32 2LN, United Kingdom