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Home / Engine Parts / Starters / B & C /B & C Lightweight Starters For Lycoming
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B & C Lightweight Starters For Lycoming

12 Reviews 2 Answered Questions
Select Lycoming Starter
BC315BCS206
Select Voltage
12V24V
Select Starter Ring Gear Teeth
122149
Select Engine Rotation
StandardCounter
Quantity
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Overview

Note: When ordering, please complete an STC Request Form for issuance of STC paperwork.

STC Request Form

The B&C Starter for Lycoming engines is the original lightweight alternative. Introduced over 15 years ago, this same design has provided dependable service for thousands of satisfied customers—and it remains the benchmark of reliability and genuine value.

When the B&C Starter was introduced, the typical OEM starter for 4- and 6-cylinder engines weighed 17.2 lbs. (and the OEM unit for 8-cylinder engines tipped the scales at 34.5 lbs!). In contrast, the B&C Starter weighed only 10.2 lbs. and eliminated the troublesome Bendix drive—all while providing greater torque than either of the OEM units.

Of course, other lightweight starters have joined the market since then, and there are cheaper starters to be had. But that cuts both ways. Proven reliability offers a better value in the long term—and that is B&C's specialty. The B&C Starter features sealed Heavy-Duty Ball Bearings (no bushings or needle bearings), All Metal Gears (no plastic gears of any kind), Electro-Mechanical Pinion Actuation (no Bendix drive), and an Efficient Series-Wound Motor (no permanent magnet motor).

The B&C Starter is available in a number of configurations to fit varied applications. STC/PMA approved on Lycoming O-235 through IO-720 engines, with models available for homebuilt aircraft, as well. All feature the same uncompromised value and unmatched reliability upon which B&C has built its reputation. Ask anyone who has one and they'll tell you: nothing else measures up to a B&C.

The B&C Starter for Lycoming engines is available in 8 configurations for experimental aircraft to suit a variety of applications (see table below). Configuration options include—12 or 24 volts; 122 or 149 ring gear teeth; standard- or counter-rotating. All feature the same “No Compromises” construction that has made the B&C Starter the benchmark of long-term reliability and genuine value.

NOTE: You may need to modify the support bracket (if used) that links the starter and alternator.

NOTE: For Robinson R22 or R44 helicopters, please be advised that the white solenoid jumper on the BC315 is not used. Consult the applicable wiring diagram in the Robinson Maintenance Manual for further information.
   
California Prop 65 Warning Symbol

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

Features

STCd for aircraft powered by any of the following series of Lycoming engines:
  • O-235
  • O-290
  • O-320
  • IO-320
  • AIO-320
  • AEIO-20
  • O-360
  • IO-360
  • AIO-360
  • AEIO-360
  • HO-360
  • HIO-360
  • O-540
  • IO-540
  • AEIO-540
  • HIO-540
  • TIO-540

Specifications

FOR CERTIFICATED AIRCRAFT APPLICATIONS

Part No. Model No. Pinion Gear Pitch Teeth on Ring Gear Battery Voltage
07 06700
BC315-100-1
10/12
122
12
07 06705
BC315-100-2
12/14
149
12
07 06710
BC315-100-3
10/12
122
24
07 06715
BC315-100-4
12/14
149
24


FOR EXPERIMENTAL AIRCRAFT APPLICATIONS

Part No.
Model No.
Pinion Gear Pitch
Teeth on Ring Gear
Battery Voltage
07 06720
BCS206-122-12
10/12
122
12
07 06725
BCS206-149-12
12/14
149
12
07 06730
BCS206-122-24
10/12
122
24
07 06735
BCS206-149-24
12/14
149
24

Benefits

  • Sealed Heavy-Duty Ball Bearings (no bushings or needle bearings)
  • All-Metal Gears (no plastic gears)
  • Electro-Mechnanical Pinion Actuation (no Bendix drive)
  • Efficient Series-Wound Motor (no permanent magnet motor)
  • Weight: 10.2 lbs
  • STC/PMA: Lycoming O-235 to IO-720
  • The B&C Starter uses only sealed heavy-duty ball bearings, all metal gears, and an efficient series-wound motor.
  • The B&C Starter is available in a variety of congifurations to fit different applications.
  • Configuration options include 12v / 24V; 122 / 149 Ring Gear Teeth; Standard / Counter-Rotating; STC/PMA / Homebuild.
  • All features are the same "No Compromises" construction that has made the B&C Starter the benchmark of long-term reliability & genuine valve.

Documents

  • Frequently Purchased With
  • Customers Also Viewed

Reviews

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Easy to order and arrived on time.

Allan T Verified Purchase

B&C BC315-100-4 Starter For Lycoming 24V, STCD
May 20, 2025

Beautifully machined case. Looks very sturdy we’ll see. Was a very tight fit on our AEIO-360A1D. The mounting flange makes it difficult to install the nuts on the mounting studs. You need to wiggle the starter in a bit at a time.

Peter C Verified Purchase

B&C BcS206-149-12 Starter For Lycoming Homebuilt
November 27, 2024

The problem have now is the bracket from the starter to the alternator does not fit. So do we now need to buy a B & C alternator?

Tom R Verified Purchase

B&C BC315-100-6 Starter For Lycoming 12V, STCD
November 26, 2022

Nice new starter. Came in an appropriate amount of time. Good packaging. Maybe sending some free stickers with orders would be cool, especially when spending over 700$ on one item!

Bob
February 24, 2021

After 2 Skytec 149-12LS starters and 2 additional replacement solenoids, I decided to try a B&C starter - based on their reputation for excellent products. It is working as advertised.

Richard G
November 23, 2020

Far and away this starter was preferred by the group that flies canard airplanes like mine. It seems to use much less battery with more cranking power due to the design. My old starter was an inline version with no solenoid so the install took a great amount of time for the baffle mods.

Del S
January 27, 2020

Incredible quality, great design. Far better than the competition.

Edward J
March 28, 2019

Top quality and design, lightweight and easy to install. I have installed/owned many B&C products and have never had any problems. Im an A&P/pilot and refer B&C to other mechanics and pilots without hesitation.

Ben T
February 17, 2019

I gave it 4 stars because of a fit issue which applies to Piper PA-28-140 planes with a front-mounted oil cooler. The oil cooler needs to be remounted at least 1/2 to the outside of the baffle to avoid touching the solenoid mounted on the side of the starter. I fabricated a bracket that moves the cooler .6 outboard to avoid hitting the starter and .75 inwards to avoid hitting the nose bowl. Not an easy fix, but the starter works great and I was able to use a 2 AWG cable instead of 0 AWG cable for power.

Larry N
July 22, 2024

The starter works as advertised. My only complaint is that the old starter cannot be returned for a core charge credit.

Harvey W
October 30, 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: What is the weight of the 12V starter (part number 07-06700)?

Part number 07-06700 weighs 10.2 lbs.

Q: Can a working Falcon-type Delco starter with Bendix drive be returned as the core for this B&C starter?

There is not a core charge for this B&C starter.

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