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Home / Instruments / Accessories / Mounts /3At Reducer Plates
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3At Reducer Plates

5 Reviews 3 Answered Questions
From $19.95 to $20.75
Prices below incude GST
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Description Part Number Price Buy
Reducer From 3Ati To 3 1/8 Ins 4 Hole
07-01331
$21.95
Quantity
Reducer From 3Ati To 2 1/4 Ins
07-01330
$22.83
Quantity
Subtotal $0.00
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Overview

3ATI Reducers to 3 1/8"
3ATI Reducers make it possible to use a 3ATI hole cut out to mount 3 1/8'' diameter instruments. One reducer plate bolts to the 3ATI cut out holes behind the panel, the second plate which is the top plate that has the 45 degree corners fits in the old 3ATI cut out and then the 3 1/8'' instrument bolt through this plate to mount the instrument. Plate can be shimed to instrument panel thickness . Simple installation. Heat-treated aluminum .080 thick with black anodize finish.

3ATI Reducers to 2 1/4"
3ATI Reducers make it possible to use a 3ATI hole cut out to mount 2 1/4' diameter instruments. One reducer plate bolts to the 3ATI cut out holes behind the panel, the second plate which is the top plate that has the 45 degree corners fits in the old 3ATI cut out and then the 2 1/4'' instrument bolt through this plate to mount the instrument.Plate can be shimed to instrument panel thickness, comes with 4 rivets. Simple installation. Heat-treated aluminum .080 thick with black anodize finish.BACK PLATE 3.8 X 3.8

Reviews

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Excellent fit and quality, Easy to trim with shears and a file to fit an adjustment knob and a little flat black paint blended in well.

Aircraft M Verified Purchase

Reducer From 3Ati To 3 1/8 Ins 4 Hole
March 13, 2022

Nice product, works as advertised.

John J Verified Purchase

Reducer From 3Ati To 2 1/4 Ins
June 30, 2021

Going to install in July during annual, received in a timely manner, nicely packaged.

Kerry P Verified Purchase

Reducer From 3Ati To 2 1/4 Ins
June 19, 2021

As advertised, just what I needed.

Robert L
April 29, 2019

John A Verified Purchase

Reducer From 3Ati To 2 1/4 Ins
November 27, 2021

Q&A

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Please note, Aircraft Spruce Australia'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 Australia 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: How big is a 3ATI hole?

The hole will fit a 3-1/8 inch instrument.

Q: What does 3ATI mean?

3ATI is an instrument size that is 3.2", this plate will reduce a 3ATI store down to 3-1/8".

Q: I have an Aerospace Technologies CT204 gauge, which is 2-1/4. Current instrument panel has a 3 (?) single-cylinder CHT gauge. Is this 01330 adapter the right one?

If its a 3ati gauge, PART # 07-01330 would work.

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