Shop by Make & Model

407 Tail Rotor Gearbox Output Shaft Collet Assembly

Used to check bevel gear backlash   Bell P/N T103217

206/407 Freewheeling Unit Bearing Installation Sleeve

Freewheeling unit bearing installation sleeve T103323

407 Freewheeling Unit Input Shaft Removal Work Aid

Used to separate the input shaft from the output shaft on the freewheeling assembly.   Bell P/N T103309

407 Freewheeling Unit Input Shaft Disassembly Work Aid

Used to disassemble the items inside of the input shaft of the freewheeling unit.   This is one big heavy chunk of steel. Simple enough to make, but the raw steel that size is expensive.   Bell P/N T103312

206 Main Rotor Trunnion Bearing Pressing Plug

Used to press trunnion bearing inner race from spindles of trunnion.

407 Tail Rotor Gearbox Work Aids #1-8

Work Aids 1-8 for the 407 tail rotor gearbox

407 Main Rotor Hub Overhaul Work Aid Kit

407 Tail Rotor Hub Flapping Bearing Work Aid

Used to apply the force for installation and removal on steel outer race of flapping bearing. That wording is straight from the manual.   Bell P/N T101750

407 Tail Rotor Gearbox Wear Sleeve Installation Tool

Used to install the wear sleeve on the output shaft of the tail rotor gearbox. Bell P/N T103303

206/407/505 Transmission Accessory Bevel Gear Bearing Work Aid

Used to hold the accessory drive gear while applying torque to the gearshaft spanner nut.   Bell P/N T101504

407 Freewheeling Unit Assembly Aft Adapter Wear Sleeve Installation Tool

Used to install the wear sleeve on the aft adapter of the freewheeling unit. Bell P/N T103311

407 Tail Rotor Gearbox Input Duplex Bearing Nut Lip Seal Tool

This tool is used to remove and install the lip seal on the duplex bearing nut on the input of the tail rotor gearbox. Bell P/N 427-240-155-101   For Carbon Seals click here  

407 Tail Rotor Gearbox Output Shaft Pusher

Used for the installation of the tail rotor gearbox output shaft Bell P/N T103320

407 Tail Rotor Gearbox Input Duplex Bearing Nut Carbon Seal Tool

This tool is used to remove and install the CARBON seal on the duplex bearing nut on the input of the tail rotor gearbox. Bell P/N T103219

407 Freewheeling Assembly Seal Installation/Removal Tool

This tool is used to both remove and install the seal from the freewheeling shaft nut.   Bell P/N T103307

Transmission Backlash Bar Assembly

Used to check the backlash in plane of rotation between pinion and gear on the transmission assembly. Bell P/N T103326 Bell P/N T101509-11 Bell P/N 407-240-020-101 - This one is for the aircraft that have the kaflex with the transmission flange larger...

407 Transmission Mast Duplex Bearing Nut Wrench

Tool to remove the mast duplex bearing nut from the bottom of the transmission   Bell P/N 407-240-004-101

407 Tail Rotor Driveshaft Work Aid Kit

This kit contains the following items: Step Plate OTC 8068 Step Plate OTC 8062 Puller OTC 1025 And 4 pressing work aids  

AS350 Transmission Input Seal Installer

Input seal installer for the main gearbox. 350A933206

EC145/BK117/BO105 Tail Rotor Shaft Remover

Used to push the tail rotor shaft out of the tail rotor gearbox. 117-31706W1

EC145/BK117/BO105 Main Rotor Seal Installer

Used to install a variety of seals on the main rotor head assembly. 105-14101W13  

EC145/BK117/BO105 Main Rotor Inner Needle Bearing Installer

Used to install inner needle bearings in the main rotor head assembly. 105-14101W12

206 Greased Driveshaft Grease Applicator

This is for the unfortunate souls that still have to pack grease into the older style greased driveshafts. If you have a Kaflex driveshaft, this won't work for you, but we will absolutely still sell it to you. You can make it into a cool key ring and...

206/407/429/505 Adapter Wrench

206L - Freewheeling Unit 407 - Freewheeling Unit 429 - Clutch Assembly 505 - Transmission Input Seal   Bell P/N T103306

206 & 407 Tail Boom Support Stand

206 & 407 Tailboom Support StandThe tailboom can be removed or installed on the aircraft by one person with this stand.​This stand is designed for high skid aircraft. If you have a low skid aircraft contact us so we can modify it for your low skids.

407 Transmission Carrier Assembly Support

Used to help disassemble and assemble the planetary gears carrier support Bell P/N T101281

407 Mast Assembly Seal Work Aids (2pcs)

This is a set of 2 aluminum plates called out in the maintenance manual to remove and the other to install the seal in the mast assembly. One is 4.4 inches in diameter, the other 4.6 inches in diameter.   Helitools P/N 407-MAST-OH-04

205/206/212/407/412/505 Transmission Planetary Install Pin

This pin is used in removing or installing planetary pinions or the spur gear in the planetary assemblies.   Helitools P/N 206-XMSN-OH-10 Bell P/N T101332

205/206/212/407/412/505 Transmission Planetary Guide Shaft

This work aid is used in aligning the pinion assembly inner race during removal and installation of the retaining shaft in lower planetary housing.   Helitools P/N 206-XMSN-OH-11 Bell P/N T101574

206/407/505 Transmission Accessory Gear Backlash Work Aid

Used to check backlash between the transmission main input gear and the accessory drive gear.   Helitools P/N 206-XMSN-OH-07 Bell P/N T101735

206L/505 Transmission Holding Fixture And Spline Wrench Set

Fixture to hold the 206 L-model and 505 transmission during repair and overhaul.   Helitools P/N 206-XMSN-OH-08L Bell P/N T101883

206/505 Main Rotor Trunnion Centering Work Aid - Old Style

This is the original work aid called out in the maintenance manual to perform the centering of the main rotor trunnion. You will also need a set of V-Blocks to go along with it. You can find V-Blocks here. We suggest you...

407 Freewheeling Unit Bolt Wrench

This "wrench" is used to hold the freewheeling unit adapter bolt. I don't know why the aircraft part is called a bolt or why this tool is called a wrench, but here we are.   Helitools P/N 407-FWU-OH-22 Bell P/N 406-240-012-101

206/505 Tail Rotor Gearbox Pinion Bearing Work Aid

Used to install the bearings on the input pinion of the tail rotor gearbox. Input pinion definitely not included for this price. Helitools P/N 206-TRDS-F-02

206/407/505 Tail Rotor Gearbox Backlash Spline Wrench

This spline wrench is used to measure backlash on the tail rotor gearbox and also to clamp into a vice.   Helitools P/N 206-TRGB-OH-03 Bell P/N T101511

206 Mast Spline Overhaul Wear Pins

These are the .080 and .160 wear pins the manual calls out for to do the checks on the mast splines during overhaul.   This set comes with 2ea .0800" and 2ea .1600" pins.   Click here for a selection of different size pins

.020" Spherical Inspection Probe

This is the spherical radius probe the maintenance manual calls for. This probe has a .020 spherical ball on the very end so that you can run it across the shaft splines to check for damage. Use it on: Multiple 206 items not listed...

407 Freewheeling Unit Aft Cap Lip Seal Work Aid

Used to install the lip seal on the freewheeling unit aft cap.   1.98in wide by .500 thick. Updated Manual says to make it .250 thick. We make it .500 because it is easier to manufacture and it also makes it easier for you to grip the work aid and...

206/505 Transmission Duplex Bearing Nut Wrench

Used on the duplex bearing retainer nut. Helitools P/N 206-XMSN-OH-02 Bell P/N T101501

206/505 Mast V-Block

These are the 4inch V-Blocks the maintenance manual calls for to do mast inspections/overhauls. It is a 2 piece set.   It also doubles as an amazing paperweight. (Tested and approved)   Helitools P/N 206-MAST-F-04

206/505 Mast Assembly Nut Wrench

Wrench is used to remove and torque the nut on the mast assembly during overhaul.   Helitools P/N 206-MAST-F-02 Bell P/N T102040

407 Main Rotor Hub Assembly Adapter

Adapter is used to maintain alignment of main rotor hub assemblies during teardown and re-assembly for overhaul.   Bell 407-210-005-101

407 Tail Rotor Driveshaft Hanger Bearing Disassembly Work Aid

Provides support to hanger bearing housing while pushing out bearing with arbor press

212/412 Tail Rotor Trunnion Centering Tool

Figure 64-14 Tail Rotor Trunnion Centering Tool

206/505 Mast Holding Fixture (Alternate)

Used to hold the mast assembly when torque is applied to the ball bearing retaining nut during removal and installation. Helitools P/N 206-MAST-F-01 Bell P/N T101499   CLICK HERE FOR 206-240-002-101

206A/B Cyclic Bell-Crank Rigging Work Aid

Work Aid to help rig the 3.09 inches from roof deck to the center of bolt on the cyclic bell-crank.

206/505 Transmission Backlash Work Aid

This item is used to check the backlash between the main input pinion gear and the input driven bevel gear. CR&O has all the details.   The base plate is NOT included. Click here for the baseplate   Helitools 206-XMSN-OH-05 Bell...

206/407/505 Freewheeling Unit Cap Restraint Fixture

Fixture used to hold freewheeling unit cap on vice while doing maintenance   Helitools P/N 206-FWU-OH-11 Bell P/N T103308

206/407/429/505 Freewheeling Unit Bearing Installation Sleeve

For pressing the roller bearing during freewheeling unit maintenance. For the "clutch" on the 429.   Helitools 206-FWU-OH-16 Bell T103332

206 Swashplate Shipping Plate

Color varies when manufactured

Rolls-Royce 250 Spur Adapter Gear Installation Work Aid

P/N: 250SG2 (C20 only) Rolls-Royce P/N 23006778   P/N 250SG3 (C30 & C47) Rolls-Royce P/N 23005426

206/407 Oil Cooler Blower Shaft Spline Wear Pins

These are used to measure the wear on the oil cooler blower drive shaft splines. You get 2 each 0.1080" pins and 2 ea 0.1200" pins Click here for a selection of different size pins

Bell 206 Transmission Cover and Lift Plate

Cover plates for the 206 transmissions. Fitted with eye for lifting transmission. NOT for lifting aircraft.​Lifting eye is rated for 9000 lbs   L3/L4/505 - 206-240-001-101

Rolls-Royce 250 C20 Compressor Case Half Wrenches - 3pcs set

With these wrenches, you can now cut down the time it takes to disassemble the case halves by 50%. Bits are removable which allows you to use the reverse side of the ratchet for removal and installation with just our two ratcheting wrenches. Comes with a...

Rolls-Royce 250 C20 Gearbox Seal Installer

Installs the gearbox seals on the C20's. Place guide on output shaft, place seal over the guide, and place flange over the seal.

204/205/206/212/505 Pitch Horn Spreader

Use it to spread the pitch horn and remove the trunnion fittings as per Bell Maintenance Manual.

206/505 Grip Lock Bolt - 2pcs Set

Simplest, fastest, and best work aid to keep from scrapping a pair of TT Straps. Stronger and more reliable than T-handle type locks that most people use.

206 Mast Stand Adapter

This adapter was made to fit inside of 2” galvanized pipe. Can be machined to fit in your stand. Please give us the size of the pipe you plan on using in the comments on checkout. If you need a mast stand for your 206L and don't have a scrap mast...

206/505 Series Main Rotor Grip Locks - 2pcs set

These lock tight, won't slip and are used to adjust the grips level when aligning and static balancing the main rotor.

206/407/505 Transmission Oil Pump Accessory Gear Drive Spanner Nut Socket

Socket specifically designed for the spanner nut on the accessory gear that drives oil pump. Maintenance manual calls out for AN8515-1 Spanner Wrench. Our socket is a better design that won't slip and make you bust your knuckles.

Rolls-Royce 250-C20/C30/C47 Engine Lifting Eye

Engine lifting eye for C20, C30, and C47. Long enough to clear the exhaust stack so it doesn't have to be removed. Rolls-Royce C20/C28 6796963Rolls-Royce C30/C47 6889888

Slide Hammer

Shorter than commercial slides to pop out fuel pump cartridges in the belly when there is little ground clearance available.Comes with 7/16 20 and a 1/4 28 thread adapters.

Bypass Spool Check Mount - With Dial Indicator

Bracket held on with nylon screws so as not to damage the servo anodized surface.The bracket also comes with a powder coat finish which gives additional protection to the anodized finish on the servo.  

206 & 407 Free Wheeling Unit Aft Flange Wrench

Use this work aid by attaching it to the aft flange with two bolts. Use a breaker bar to keep shaft from rotating. Through the larger centered hole, use your socket to torque the nut. We can make the square drive hole 1/2in if you prefer.   Bell P/N...

Big A$$ Screwdriver

The shaft is 14-15 inches long. The handle is about 5" long and is made from 1 1/2 inch knurled aluminum. There is a 9/16" nut welded to the shaft right next to the handle. You can put extra torque on it with a 9/16" wrench. There is also a hole drilled...

206 Transmission Input Flange Wrench

T101555 transmission input flange wrench for the 206.

206/505 Tail Rotor Gearbox Spanner Nut Wrench

Used to remove or install the locknut on the input side of the tailrotor gearbox. Easier to use than the AN8514-1 spanner wrench.   Helitools P/N 206-TRGB-F-01   As seen with 206/407/505 Tail Rotor Gearbox Backlash Spline Wrench

Bell Sight Glass Remover

Work aid to remove the round Bell sight glass.

Composite Tap Hammer

Use the tap hammer on main rotor blades or any other composite material to check for delamination.   Equivalent to T75449-2       Aluminum: Softer impact. Good for thin laminates or delicate surfaces where you don’t want to...

Grease Fittings

These are the threaded ones, not the quick disconnect ones that get grease everywhere except the part you want it in.

90° Grease Coupler

I recently found this 90 degree grease coupler that works great on hard to access grease fittings.Works really well on the oil cooler blower bearings on the Bell 407. It slides in from the side when straight on access is difficult or next to impossible.

Jackscrews 1/4" 28 - 3pcs

Use these on transmission input quills, freewheeling unit, tailrotor gearbox, or any component requiring 1/4" 28 jackscrews. T101308

206/407/505 Swashplate Shim Alignment Studs

Holds the shims in position when doing the swashplate friction check. The hex head is 5/32" drive.An allen wrench is easier to get in to tight areas than a long phillips screwdriver. Can also be used as jack screws on the 206 and 407 transmission input...

206 Main Rotor Grip Excluder Seal Remover

Insert into the excluder bushing, turn knob to tighten which expands fingers on the end and remove seal.

206 Tail Rotor Trunnion Grease Housing Bearing & Seal Installer

Double sided work aid to press the bearing and seal into the needle grease fitting housing assembly on tail rotor hub.

206 Tail Rotor Trunnion Inner Race Installer & Plugs

Work aids to press the inner race onto the tail rotor trunnion.   This is also the Bell 505 Tail Rotor Work Aid #7 & #8

206 Main Rotor Grip Excluder Mandrel

If you need this, you know what it is for.

Rolls-Royce 250 C30/C47 Gearbox PTO Seal Installer

This installer works on the C30 and C47 engines.  You can install one seal at a time or both at once. This is the best seal installer you will find for the gearbox seals.

Rolls-Royce 250 C30/C47 Gearbox PTO Seal Remover

Removes rear gearbox seal.

206/505 Latch Bolt Nut Socket

This socket is normally used in the shop for removal of the latch bolt on the grip assembly. See item #4 in one of the posted pictures. Bell P/N T101554

206A/B Freewheeling Assembly Work Aid #4

Work Aid #4 for the Freewheeling Assembly found in the CR&O manual.   Chapter 63-30 page 264.

206A/B Freewheeling Assembly Work Aid #5

Work aid #5 for the Freewheeling Assembly found in the CR&O manual. Chapter 63-30-00 page 141.