GTSIO-520-N
One Engine Installation
GTSIO-520-N
RAM OHE Continental GTSIO-520-N Engine
For Cessna 421C (SN 1001-1807)


$66,955
RAM OHE Continental GTSIO-520-N engine - Exchange basis
Installation Parts - Included
Installation and Set-up
Reuse customer's propeller and governor
(Propeller and governor must be airworthy.)

RAM OHE Continental GTSIO-520-N (Specify Side)
  • Horsepower - 375 hp
  • TBO - 1600 hrs.
  • Cylinders - NE [ RAM New Nickel Cylinder Package ]
  • Crankcase - heavy style case - OHE [ with 7th studs on cylinder bases ]
  • Crankshaft - OHE
  • Camshaft - NE
  • Propeller shaft, quill shaft, and reduction gear - OHE
  • Alternator - OHE
  • Starter and starter drive - OHE
  • CMI/Bendix Magnetos - OHE
  • Spark plugs - new
  • Magneto harness - Champion - new
  • Fuel injection system - OHE
  • Turbocharger - OHE
  • Turbo controller - OHE
  • Overboost relief valve - OHE
  • Intercooler - exchange [ inspected and repaired ]
  • Induction couplings - new
  • Air filter - new
  • Metal baffles - exchange [ refurbished and painted ]
  • Baffle Seals - new [ RAM SureStand red silicone rubber ]
  • Cooling shroud - RAM - new [ for dry vacuum pump ]
  • Oil cooler - NE
  • Precision balance - exchange [ crankshaft and rod sets ]
  • Core Return Policy - See: RAM Exchange Core Policy Below.
  • Also see: RAM Value Options& Compliance Items.
Istallation Parts - Included
  • Propeller - reuse customer's [ flush and reuse serviceable propeller ]
  • Governor - reuse customer's [ flush and reuse serviceable governor ]
  • Wastegate and actuator assembly - RAM - OHE
  • Induction ducts - new [ turbo outlet and inlet ]
  • Engine shock mounts - one set of four - new
  • Exhaust slip joint - one set of two - new
  • Engine 3-in1 gauge - check calibration [ for engine being installed ]
  • EGT probe - new
  • Primary fuel, oil and hydraulic hose kit - new
    [ Heavy duty Teflon™ hoses - w / Integral firesleeve ]

OHE = Overhauled Exchange
NE = New Exchange -OEM or PMA
New = New Outright - OEM or PMA
New Items = Subject to test time, ferry time and inventory time.

RAM Overhauled Engine TBO Warranty
  • 100% Engine and accessories for the 1st year, or 500-hrs, whichever occurs first. Thereafter, the engine only is warranted on a prorata basis to TBO at RAM’s reduced minimum accrual rate of only 30 hours per month, thus extending coverage over four years. For complete details go to www.ramaircraft.com/ramtbowarranty
Exchange Core Policy
  • Exchange Core Policy: Engine, crankcase, crankshaft, internal gears, exhaust, accessories, propeller, governor, and hardware items are only sold on an exchange basis, based upon the customer's exchange of like type and normal runout cores as removed from subject aircraft, and serviceable to RAM's overhaul specifications. Cores should be returned within 30 days of RAM OHE engine shipment, or immediately with a RAM installation. Non-serviceable core fees will be due and payable to RAM.
Installation and Set-up
  • Each aircraft receives a detailed preflight and high altitude flight inspection to ensure airworthiness and to document performance of instruments, flight controls, landing gear, accessories, lights, and avionics.
  • Discrepancies are brought to customer’s attention. Unairworthy items must be repaired at customer’s expense during RAM proceedings in order for RAM to set up, fly, and deliver the finished product.
  • Old engine is removed. Engine bed is cleaned. Mount structure is inspected and corrosion treated. Four hours labor is standard.
  • Due to its tendency to contaminate the engine oil supply, if installed, the propeller unfeathering accumulator will be disabled unless optionally replaced with a newer unit. OHE: $875
  • Applicable one engine installation parts are installed.
  • Engine is installed and setup, which includes multiple flights.
    Fuel for flying both engines is included; however, adjustments or maintenance to the remaining engine, or to the aircraft, are not included in this package price.
  • Aircraft washed. Interior cleaned prior to delivery and customer acceptance.
    •Remove, clean, and reinstall the air/oil separator on all 421C and late model 421B (after serial number 500).