RETROFIT MATCHING

Turbocharger retrofit

When the original turbocharger no longer adds up — on cost, on lead time, or because the manufacturer no longer supports it — there is a proven alternative. These are the matchings we install.

WHEN IT PAYS OFF

Four reasons to change turbocharger brand

Lead time: units available without waiting on OEM factory lead times
Life-cycle cost: cheaper spares and overhauls for the rest of the engine's life
Obsolescence: models whose factory support has been reduced or withdrawn
Intervals: current designs with longer periods between overhauls

A retrofit is not "fitting a different turbo": it is an engineered replacement. We check the engine's operating point against the proposed turbocharger's compressor map, define the adaptation kit (flanges, water and oil piping, brackets, instrumentation) and document the result like any other job.

KBB HPR5000 turbocharger for gas and diesel engine retrofits

GAS ENGINES

KBB and PBS matchings by engine

Verified matchings for Jenbacher, MWM, Deutz and Caterpillar gas engines originally fitted with ABB turbochargers. Every line corresponds to a replacement we have engineered or carried out.

JENBACHERJ312ABB RR131 → PBS TCR12

JENBACHERJ320ABB RR151 → PBS TCR14 · ABB TPS52D/E → KBB HPR4000 or PBS NR17/SRX

JENBACHERJ420ABB TPS52D/E and TPS52F → KBB HPR4000, PBS NR17/SRX or PBS TCR16

JENBACHERJ616ABB RR151 → PBS TCR14 · ABB TPS52D/E and TPS52F → PBS NR17/SRX or TCR16

JENBACHERJ620ABB TPS57D/E and TPS57F → PBS NR20/SRX or TCR18 · ABB A140 → KBB ST5 (plug & play) or PBS TCR18

JENBACHERJMS612 GSABB A135 → PBS TCR16

MWMTCG2016 V12B / V16CABB TPS48D/E → PBS TCR14

MWMTCG2020 V12 / V16 / V20ABB TPS48F → KBB HPR3000 or PBS TCR14 · ABB TPS52D/E and TPS52F → PBS TCR16

MWMTCG2032 V16ABB TPS57D/E → PBS NR20/SRX

DEUTZTBG620 V12 / V16ABB TPS50B and TPS52D/E → PBS TCR16 (set of connection elements required)

DEUTZTBG632 V16ABB TPS57D/E → PBS NR20/SRX

CATERPILLARG3520C / 3520CABB TPC47 → KBB HPR3000 · ABB TPS57D/E and TPS57F → KBB HPR5000

SOME REPLACEMENTS REQUIRE ADAPTING WATER PIPING OR CONNECTION ELEMENTS. WE ALWAYS STATE THIS IN THE QUOTATION.

MEDIUM-SPEED & RAIL ENGINES

Hedemora matchings

The Hedemora Turbo & Diesel HS range (1.000–4.200 kW per unit, pressure ratio up to 4.5 and up to 24.000 h between overhauls according to the manufacturer) covers medium-speed power and traction engines whose original turbocharger is hard to maintain.

WÄRTSILÄ18V34SGABB TPL65 → Hedemora HS5800

SKLSKL enginesPBS PDH70 or KBB H6-1 → Hedemora HS5800 (installation kit)

ALCO12-251 C3Original turbocharger → Hedemora HS5800 (installation kit)

GEEVO / GEVO12Original GE turbocharger → Hedemora HS7800

HS range: HS4800 (1.000–2.500 kW), HS5800 (1.500–3.700 kW), HS6800 (1.700–4.000 kW) and HS7800 (2.000–4.200 kW), with plain bearings and air cooling.

Hedemora HS series turbocharger, manufacturer product view

Hedemora HS7800 turbocharger installed on a GE GEVO12 engine — HS7800 FITTED ON A GEVO12

Hedemora HS7800 on a GE GEVO12 engine, showing the ducting and connections — DUCTING AND CONNECTIONS

HOW WE DO IT

From enquiry to commissioning

01Unit dataEngine type, current turbocharger nameplate (model and part no.), running hours and operating conditions.

02Technical matchingThe engine's operating point is checked against the proposed unit's compressor map.

03Adaptation kitFlanges, water and oil piping, brackets and instrumentation — defined and quoted in writing.

04InstallationOn-site fitting by our field engineers, scheduled around the engine outage.

05Commissioning & reportStart-up, parameter verification and a service report with the final configuration.

FAQ

Frequently asked questions

Isn't changing the current turbocharger's spec enough?

Not on your own: the specification is agreed between engine builder and turbo manufacturer after matching tests, and changing it without engineering can end in surging, overspeed or shortened rotor life — and on IMO marine engines it triggers re-certification. That is why a serious retrofit always goes through documented matching.

Does a retrofit affect the engine warranty?

On engines outside the manufacturer's warranty period — the usual case for a retrofit — there is no impact. If the engine is still under warranty, we check before proposing anything.

Is engine performance maintained?

That is the acceptance criterion: the proposed turbocharger must cover the engine's operating point with margin. If the matching doesn't work out, we don't quote the retrofit.