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Natural Gas Compression & Power Generation
Gas Compression
VHP Series Two to Series Four Model Conversion

Built to Work
VHP Series Two to Series Four Model Conversion

  • Availability
  • Life
  • Output

INNIO’s VHP* Series Four* upgrade packages offer the latest technology with field-proven Series Four heads.

Options include an upgrade to the scuff-resistant Series Four piston, and a full Series Four power upgrade option with up to an additional 200 bhp. Each of these product features can be combined or used separately to upgrade your existing VHP Series 2 gas engine. With these upgrades, you can expect to see increased uptime, reliability, and performance.

VHP Series 2 to Series 4 Conversion
News Resources Upgrades FAQ

Make sure this upgrade is compatible with your engine:

What can this upgrade do for you?

  • More uptime due to longer intervals between overhauls. Up to 60% longer intervals between top-end overhauls; up to 32,000* hours on L7042GSI S4 vs. 20,000 hours on existing L7042GSI engines.
  • Lowered lifecycle costs through lower oil consumption. S4 pistons feature increased scuff resistance and three-ring design, which can reduce oil consumption by up to 67%, reducing makeup oil cost and catalyst masking.

*Intervals may vary depending on factors such as fuel quality, maintenance practices, and operating conditions.

Engine configuration must be verified for upgrade opportunity.

VHP Series 2 GL to Series 4 GSI Conversions 2

How we get you there?

Three kit options are available:

  • Series Four cylinder head upgrade
    Stage I
    Four-flex-head valve technology.
  • Power cylinder upgrade
    Stage II
    Includes Series Four cylinder head upgrade, adding pistons and other components.
  • Power Boost
    Stage III and IV
    A power upgrade option offering up to 200 bhp and other features such as Series 4 cylinder head and piston upgrades.

Waukesha Power Cylinder

VHP LT to GSI Conversion Waukesha_Series 4 Cylinder Head_300x300

* Intervals may vary depending on factors such as fuel quality, maintenance practices, and operating conditions. Engine configuration must be verified for upgrade opportunity.

Find your version:

F2895G UPGRADE

F2895G

Stage I

Stage III Plus¹

Stage IV Plus¹
New Series Four Cylinder Heads ✔ ✔ ✔
Head Components ✔ ✔ ✔
Oil Header ✔ ✔ ✔
CEC Ignition Harness ✔
Ignition Coils ✔
New Piston ✔ ✔
Rings ✔ ✔
Liner ✔ ✔
Turbocharger ✔ ✔
Intercooler ✔ ✔
Wastegate ✔ ✔
ESM*2 ✔ ✔
AFR2 ✔ ✔
Crankshaft ✔
Connecting Rods ✔

¹Requires increasing cylinder bore

F2895GSI

Stage I

Stage III Plus¹

Stage IV Plus¹
New Series Four Cylinder Heads ✔ ✔ ✔
Head Components ✔ ✔ ✔
Oil Header ✔ ✔ ✔
CEC Ignition Harness ✔
Ignition Coils ✔
New Piston ✔ ✔
Rings ✔ ✔
Liner ✔ ✔
Turbocharger ✔ ✔
Wastegate ✔ ✔
ESM2 ✔ ✔
AFR2 ✔ ✔
Crankshaft ✔
Connecting Rods ✔

¹Requires increasing cylinder bore

F3521G

Stage I

Stage III

Stage IV
New Series Four Cylinder Heads ✔ ✔ ✔
Head Components ✔ ✔ ✔
Oil Header ✔ ✔ ✔
CEC Ignition Harness ✔
Ignition Coils ✔
New Piston ✔ ✔
Rings ✔ ✔
Liner ✔ ✔
Turbocharger ✔ ✔
Intercooler ✔ ✔
Wastegate ✔ ✔
ESM2 ✔ ✔
AFR2 ✔ ✔
Crankshaft ✔
Connecting Rods ✔

F3521GSI

Stage I

Stage II

Stage III

Stage IV
New Series Four Cylinder Heads ✔ ✔ ✔ ✔
Head Components ✔ ✔ ✔ ✔
Oil Header ✔ ✔ ✔ ✔
CEC Ignition Harness ✔ ✔
Ignition Coils ✔ ✔
New Piston ✔ ✔ ✔
Rings ✔ ✔ ✔
Liner ✔ ✔ ✔
Turbocharger ✔ ✔
Wastegate ✔ ✔
ESM2 ✔ ✔
AFR2 ✔ ✔
Crankshaft ✔
Connecting Rods ✔

L5790G

Stage I

Stage III / Stage III Plus¹

Stage IV / Stage IV Plus¹
New Series Four Cylinder Heads ✔ ✔ ✔
Head Components ✔ ✔ ✔
Oil Header ✔ ✔ ✔
CEC Ignition Harness ✔
Ignition Coils ✔
New Piston ✔ ✔
Rings ✔ ✔
Liner ✔ ✔
Turbocharger ✔ ✔
Intercooler ✔ ✔
Wastegate ✔ ✔
ESM2 ✔ ✔
AFR2 ✔ ✔
Crankshaft ✔
Connecting Rods ✔

¹Requires increasing cylinder bore

L5790GSI

Stage I

Stage III / Stage III Plus¹

Stage IV / Stage IV Plus¹
New Series Four Cylinder Heads ✔ ✔ ✔
Head Components ✔ ✔ ✔
Oil Header ✔ ✔ ✔
CEC Ignition Harness ✔
Ignition Coils ✔
New Piston ✔ ✔
Rings ✔ ✔
Liner ✔ ✔
Turbocharger ✔ ✔
Wastegate ✔ ✔
ESM2 ✔ ✔
AFR2 ✔ ✔
Crankshaft ✔
Connecting Rods ✔

¹Requires increasing cylinder bore

L7042G

Stage I

Stage III

Stage IV
New Series Four Cylinder Heads ✔ ✔ ✔
Head Components ✔ ✔ ✔
Oil Header ✔ ✔ ✔
CEC Ignition Harness ✔
Ignition Coils ✔
New Piston ✔ ✔
Rings ✔ ✔
Liner ✔ ✔
Turbocharger ✔ ✔
Intercooler ✔ ✔
Wastegate ✔ ✔
ESM2 ✔ ✔
AFR2 ✔ ✔
Crankshaft ✔
Connecting Rods ✔

L7042GSI

Stage I

Stage II

Stage III

Stage IV
New Series Four Cylinder Heads ✔ ✔ ✔ ✔
Head Components ✔ ✔ ✔ ✔
Oil Header ✔ ✔ ✔ ✔
CEC Ignition Harness ✔ ✔
Ignition Coils ✔ ✔
New Piston ✔ ✔ ✔
Rings ✔ ✔ ✔
Liner ✔ ✔ ✔
Turbocharger ✔ ✔
Wastegate ✔ ✔
ESM2 ✔ ✔
AFR2 ✔ ✔
Advanced breather ✔ ✔
Crankshaft ✔
Connecting Rods ✔

  • Waukesha Engine Upgrades

    We offer retrofit solutions that improve reliability, availability, maintainability, performance, durability, emissions, usability, and flexibility of your existing Waukesha engines.

    Click here to learn more on Waukesha Engine Upgrades

  • reUp Remanfactured Engines & Parts

    To increase performance, reUp remanufactured core parts program for Jenbacher* and Waukesha* gas engines delivers genuine OEM parts that meet exacting standards and specifictions at a fraction of the cost of new core parts.

    Click here to Learn more on reUp Remanfactured Engines & Parts

  • Find Solutions, Parts, and Service

    Waukesha’s growing network of distributors, packagers and technicians provide end users with the freedom to choose the right partner to service equipment and provide ongoing support – all backed by Waukesha Engine’s commitment to service and support.

    Click here to learn more on Global

  • Certified & Customer-Focused Training

    In-person and virtual training courses and programs are designed to make it easier for both first-time operators and experienced technicians to assimilate knowledge quickly and improve engine productivity long-term.

    Click here to learn more on Instructor-Led Training

Built to Work

Tougher

with enhanced reliability, availability and efficiency.

Longer

with extended service intervals and comprehensive engine upgrades.

Smarter

with enhanced controls and performance improvements through data analytics.

waukesha-innio-right

At Waukesha, we’re working every day to design and build engines and programs that help power your tomorrow.

OUR LEGACY IS YOUR FUTURE

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