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Home / Airframe Parts / Piper Parts / Seat Parts /Replacement Coil Seat Spring For Piper - Coil Spring/Hydraulic Style - MC0542120-1
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Replacement Coil Seat Spring For Piper - Coil Spring/Hydraulic Style - MC0542120-1

3 Reviews 0 Answered Questions
$623.70/Each
Price Includes GST
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Part# 05-15031
MFR Model# MC555-692

Overview

Direct replacement - no conversion kit required. One required per bucket seat. Helps avoid downtime and expense of repeated overhauls. McFarlane replaces the old coil spring/hydraulic style with a gas spring. Replaces Piper P/N 76445-000 or 555-692. Originals were manufactured by P. L. Porter Hydrolok

Aircraft Eligibility:

Model
 Beginning S/N Ending S/N
PA-28-140 28-7425061 28-7725290
PA-28-151 28-7415001 28-7715314
PA-28-161 28-7716001 28-8616057
PA-28-161 2816001 2816119
PA-28-180 28-7405035 28-7505260
PA-28-181 28-7690001 28-8690062
PA-28-181 2890001 2890231
PA-28-235 28-7410027 28-7710089
PA-28R-200 28R-7435035 28R-7635545
PA-28R-201 2837001 2837061
PA-28R-201 28R-7737002 28R-7837317
PA-28R-201T 2803001 2803012
PA-28R-201T 28R-7703001 28R-7803373
PA-32-260 32-7400001 32-7800008
PA-32-300 32-7440001 32-7940290
PA-32R-300 32R-7680001 32R-7880068
PA-34-200 34-7450033 34-7450220
PA-34-200T 34-7570001 34-8170092

Specifications

  • 3/8-24 UNF thread

Replacement Selection

Aircraft make, model and serial number are not sufficient to ensure the correct replacement spring as many aircraft may have been originally equipped with either one or retrofitted with a conversion kit. If the spring you are replacing is marked with a brand name (e.g. P. L. Porter or Stabilus) the correct replacement is readily identified. The coil spring/hydraulic style are also identifiable by a 1-1/4" diameter visible coil spring. The thread may also be measured to verify the correct identification.

Gas Spring Style

Original Gas Spring Style
Replace with 05-15030

Coil Spring/Hydraulic Style

Original Coil Spring/Hydraulic Style
Replace with 05-15031

Reviews

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Perfect fit. Purchased to replace part on a pa28-181. I will mention that the install will go far easier if you can manage to compress the cylinder just slightly prior to installation. (even just an inch would be enough).

Ricardo
November 25, 2024

Great replacement for porter hydrolok spring. Perfect fit no mods required

Allen S Verified Purchase

MC555-692 Replacement Coil Seat Spring For Piper
July 16, 2024

I was worried that this part might not work on my 1976 Piper Lance because the part it replaced had an external spring, and this part does not. Nevertheless, it fit and worked perfectly.

Norman C Verified Purchase

MC555-692 Replacement Coil Seat Spring For Piper
December 15, 2022

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.