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Home / Engine Parts / Starters / Hartzell Engine Technologies / Energizer Starters /Hartzell Engine Tech Energizer Starters
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Hartzell Engine Tech Energizer Starters

14 Reviews 7 Answered Questions
From $855.00 to $1425.00
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Type Model Number Volt PN Price Buy
New Hartzell Energizer Starter646238-212V
07-01333
$1425.00
Quantity
Overhauled Hartzell Energizer Starter646238-2R12V
07-02650
$855.00
Quantity
Overhauled Hartzell Energizer Starter646275-1R24V
07-06502
$865.00
Quantity
Subtotal $0.00
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Overview

Continental Starter - FAA/PMA Approved

Features:
  • Direct Drive
  • Unmatched Duty Cycle
  • Low power density
  • Wound field » No cogging torque
  • Excellent heat rejection
  • Heavy Duty
  • Weight = 15 lbs.
The Energizer starter has set the standard for starting Continental engines for over two decades. Endorsed by numerous engine overhaul shops and OEM factory installed for over 25 years.
   
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

Application Guide

CMI (TCM)* PART # HET PART # SKY-TEC PART # LAMAR PART # VOLTS ENGINE SERIES HET REPLACEMENT M-DRIVE STARTER
627841, 634433, 637847, 646275, 646275-1, 655566 ES646275, -1, MHJ- 4003 C24ST1, C24ST3, C24ST5 PM2407 24V O-300, IO-360, LTSIO-360, TSIO-360, O-470, IO-470, IO-520, LO-520, LIO-520, TSIO- 520, GTSIO-520, IO-550, TSIO-550, TSIOF-550, TSIOL-550 MRB-7000
537241, 535856, 539910, 636960, 627842, 629176, 634592, 655564, 655565, 646238,-2,-3 ES646238, -1,-2,-3, MCL-6501 C12ST1, C12ST3, C12ST5 PM1207 12V O-300, IO-360, LTSIO-360, TSIO-360, IO-346, O-470, IO-470, IO-520, LO-520, LIO-520, TSIO-520, IO-550, IOF- 550, TSIO-550, TSIOL-550 MRZ-7000

Core Return Policy

Any unit being returned for core or warranty core credit shall be, as removed from the engine, complete and not disassembled. No core or warranty core credit will be allowed for automotive units. Units that are rusty or cannot be overhauled for any reason will be classified as scrap, having no value. Units which have been weld repaired, as well as units which have been disassembled and then reassembled with old parts, will also be classified as scrap, having no value. A percentage of the core value will be charged for all missing or damaged parts. At no time will the damaged or missing parts charge on any unit exceed the core value of that unit.

1. Core will only be accepted for credit 12 months from date of invoice.
2. Cores returned in excess of cores invoiced will not be accepted.
3. Cores must be of like purchase, a directly superseded unit or replaced unit when installing an STC'd product.
4. Competitive product cores are acceptable returns.
5. Cores must have a legible data tag for part and serial number verification.

Note: Customer will need to provide core for overhaul in the event our supplier does not have cores available to overhaul.

Documents

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Reviews

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Great product

Will P Verified Purchase

ES646238-2 Hartzell New Starter
January 4, 2024

Nice looking starter. It works well. It did not include the o-ring.

Mark B Verified Purchase

646238-2R Hartzell Overhauled Starter
December 22, 2023

After having three rebuilt starters fail with in a 2 year period, it is well worth for extra money to purchase a high quality new starter. The repeated down time and cost of install and removal was negated! Strong starter, no issues. The hartzell name is known for quality.

Paul B Verified Purchase

ES646238-2 Hartzell New Starter
August 17, 2023

I am very happy with this upgrade from the OEM lightweight starter originally installed by Cirrus on the IO-550.

Alan F Verified Purchase

646275-1R Hartzell Overhauled Starter
December 21, 2022

Bought this starter to replace my SkyTec C12ST3 that’s no longer made. The alternative was the much more expensive PowerLite series by SkyTec. I only gained 9lbs going with this starter, saved $1K and it starts effortlessly and QUIETLY. Much more confident in my starts instead of wondering if the SkyTec has gotten noisier and is about to die. My SkyTec ended up having a bad commutator which caused intermittent no-starts that manifested itself as a bad battery. Would not recommend the light weight for O470 engines.

Kobbe L Verified Purchase

ES646238-2 Hartzell New Starter
June 15, 2022

Excellent, very strong starter, fits to my Piper Seneca II as expected. Very short delivery time via UPS to the Czech Republic. Im looking forward the next order via AircraftSpruce -)

Airfly ( Verified Purchase

ES646238-2 Hartzell New Starter
May 12, 2022

Much better starter than the Skytec. Faster turn over.

Darryl E Verified Purchase

646275-1R Hartzell Overhauled Starter
April 26, 2022

Perfect

James H Verified Purchase

ES646238-2 Hartzell New Starter
February 16, 2022

5 stars! Great product and customer service!

William P Verified Purchase

ES646238-2 Hartzell New Starter
June 1, 2021

I didnt realize how weak my old lightweight starter was! This new Hartzell start substantially better

Will B
May 4, 2020

Q&A

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Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: When purchasing the Energizer starter, is there an o-ring that needs to be purchased separately? Anything else not included?

The O-ring P/N MS9021-038 comes with new units, but not with overhauled units. Overhauled units will need to purchase a separate MS9021-038 to comply with Continental instructions.

Q: Regarding 646275-1R: What is the meaning of the suffix of R?

The R designates that it is an overhauled starter. The units without the R are new, outright.

Q: What warranty period is offered on HARTZELL overhauled and new starters?

New: 36 months or 1000 operating hours. Overhauled: 6 months or 250 operating hours.

Q: Can the return starter core be the original TCM Starter or does it have to be like-for-like (i.e. a Hartzell Energizer Starter)?

It will have to be like for like.

Q: If I order a 646238-2R overhauled starter, can I return a core that is a regular Teledyne 646238?

Yes that is an acceptable core.

Q: I understand the core charge when purchasing an overhauled starter but do not understand why it is charged on a new starter purchase. Why is there a core charge on a new starter purchase?

Hartzell put in place cores on all starters and alternators starting in 2020. This includes new models. Hartzell accepts the starter that is being replaced on the aircraft as a core for a refund of the charge.

Q: Im looking at replacing a Delco 1109514. Is this an acceptable core for the 646238-2 and the 2R?

Yes, a Delco is an acceptable core.

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