FAA-PMA holders · By make · Cessna / Textron Aviation
FAA-PMA parts for Cessna / Textron Aviation F172
33 approved part numbers from 8 holders carry the Cessna / Textron Aviation F172 on their FAA eligibility record. Search any OEM number from this aircraft and the approved replacements are on its part page, in stock first.
Holders
- Hartzell Engine Technologies LLC · 23 parts
- Aerospace Turbine Rotables · 3 parts
- Rapco Inc. · 2 parts
- Continental Motors Inc. · 1 part
- Hartzell Engine Technologies LLC · 1 part
- Knots 2U Ltd. · 1 part
- Lopresti Speed Merchants · 1 part
- Sky-Tec Partners Ltd. · 1 part
Approved parts · in stock first
| PMA part | Replaces (OEM) | Name | Holder | Status | On PartsAndPlanes | DLA paid (OEM no.) |
|---|---|---|---|---|---|---|
| 10-357290-1 | 0311038-2, C292501-0203, C292501-0201, 32670, 0413125, S-1255-5, C292501-0202, 0713129-4 | Switch, Ignition | Continental Motors Inc. | Current, Feb 2017 | — | — |
| AC210-001-01 | Cessna Aircraft Part No. D3FF-10368-AA, & Kelly Aerospace Part No. ES4147, as used in Cessna P/N DOFF-10300-B, C611503-0102 Alternator | Stator Assembly - Complete | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC210-001-01 | Cessna Aircraft Part No. D3FF-10368-AA, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4147, as used in Cessna Alternators DOFF-10300-J C611501-0102 | Stator Assembly - Complete | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC210-001-01 | Cessna Aircraft Part No. D3FF-10368-AA, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4147, as used in Cessna Alternators DOFF-10300-F C611501-0204 | Stator Assembly - Complete | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC220-002 | Cessna Aircraft Part No. D30F-10A351-AA, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4103, as used in Cessna Alternators DOFF-10300-J C611501-010… | Housing Drive End, Machined | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC220-002 | Cessna Aircraft Part No. D30F-10A351-AA, & Kelly Aerospace Part No. ES4103, as used in Cessna P/N DOFF-10300-B, C611503-0102 Alternator | Housing Drive End, Machined | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC220-004 | Cessna Aircraft Part No. D20F-10A355-AA, & Kelly Aerospace Part No. ES4105, as used in Cessna P/N DOFF-10300-B, C611503-0102 Alternator | Retainer Plate, Bearing | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC220-004 | Cessna Aircraft Part No. D20F-10A355-AA, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4105, as used in Cessna Alternators DOFF-10300-J C611501-010… | Retainer Plate, Bearing | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC220-005 | Cessna Aircraft Part No. 379201-S2, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4106-1, as used in Cessna Alternators DOFF-10300-F C611501-0204 | Screw #10-24, Bearing Retainer | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC220-005 | Cessna Aircraft Part No. 379201-S2, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4106-1, as used in Cessna Alternators DOFF-10300-J C611501-0102 | Screw #10-24, Bearing Retainer | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC220-005 | Cessna Aircraft Part No. 379201-S2, & Kelly Aerospace Part No. ES4106-1, as used in Cessna P/N DOFF-10300-B, C611503-0102 Alternator | Screw #10-24, Bearing Retainer | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC220-011 | Cessna Aircraft Part No. C7AF-10A349-B, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4123, as used in Cessna Alternators DOFF-10300-J C611501-0102 | Housing, Slip Ring End | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC220-011 | Cessna Aircraft Part No. C7AF-10A349-B, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4123, as used in Cessna Alternators DOFF-10300-F C611501-0204 | Housing, Slip Ring End | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC220-011 | Cessna Aircraft Part No. C7AF-10A349-B, & Kelly Aerospace Part No. ES4123, as used in Cessna P/N DOFF-10300-B, C611503-0102 Alternator | Housing, Slip Ring End | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC230-001 | Cessna Aircraft Part No. C3NF-10094-A, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4612, as used in Cessna Alternators DOFF-10300-J, C611501-0102 | Bearing, Ball - de | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC230-001 | Cessna Aircraft Part No. C3NF-10094-A, & Kelly Aerospace Part No. ES4612, as used in Cessna P/N DOFF-10300-B, C611503-0102 Alternator | Bearing, Ball - de | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC230-002 | Cessna Aircraft Part No. C5AF-10A304-A, & Hartzell Engine Technologies, Kelly Aerospace Part No. X-4130, as used in Cessna Alternators DOFF-10300-F C611501-0204 | Bearing, Needle - Sre | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC230-002 | Cessna Aircraft Part No. C5AF-10A304-A, & Hartzell Engine Technologies, Kelly Aerospace Part No. X-4130, as used in Cessna Alternators DOFF-10300-J C611501-0102 | Bearing, Needle - Sre | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC230-002 | Cessna Aircraft Part No. C5AF-10A304-A, & Kelly Aerospace Part No. X-4130, as used in Cessna P/N DOFF-10300-B, C611503-0102 Alternator | Bearing, Needle - Sre | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC240-001 | Cessna Aircraft Part No. C5AF-10351-A, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES-4120, as used in Cessna Alternators DOFF-10300-J C611501-0102 | Brush Holder | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC240-001 | Cessna Aircraft Part No. C5AF-10351-A, & Kelly Aerospace Part No. ES-4120, as used in Cessna P/N DOFF-10300-B, C611503-0102 Alternator | Brush Holder | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC240-001 | Cessna Aircraft Part No. C5AF-10351-A, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES-4120, as used in Cessna Alternators DOFF-10300-F C611501-0204 | Brush Holder | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC240-002 -01 | Cessna Aircraft Part No. C6FF-10B341-A Kit, & Kelly Aerospace Part No. ES4118 Kit, as used in Cessna P/N DOFF-10300-B, C611503-0102 Alternator | Brush Set Assembly | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC240-002-01 | Cessna Aircraft Part No. C6FF-10B341-A Kit, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4118 Kit, as used in Cessna Alternators DOFF-10300-F C611… | Brush Set Assembly | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC240-002-01 | Cessna Aircraft Part No. C6FF-10B341-A Kit, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4118 Kit, as used in Cessna Alternators DOFF-10300-J C611… | Brush Set Assembly | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC240-005 | Cessna Aircraft Part No. C5AF-10349-A, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES-4119, as used in Cessna Alternators DOFF-10300-J C611501-0102 | Spring, Brush | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC240-005 | Cessna Aircraft Part No. C5AF-10349-A, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES-4119, as used in Cessna Alternators DOFF-10300-F C611501-0204 | Spring, Brush | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC240-005 | Cessna Aircraft Part No. C5AF-10349-A, & Kelly Aerospace Part No. ES-4119, as used in Cessna P/N DOFF-10300-B, C611503-0102 Alternator | Spring, Brush | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC250-001-01 | Cessna Aircraft Part No. DOFF-10304-B, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4113, as used in Cessna Alternators DOFF-10300-F C611501-0204 | Rectifier Assembly | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC250-001-01 | Cessna Aircraft Part No. DOFF-10304-B, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4113, as used in Cessna Alternators DOFF-10300-J C611501-0102 | Rectifier Assembly | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC250-001-01 | Cessna Aircraft Part No. DOFF-10304-B, & Kelly Aerospace Part No. ES4113, as used in Cessna P/N DOFF-10300-B, C611503-0102 Alternator | Rectifier Assembly | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC250-002 | Cessna Aircraft Part No. C6AF-18827-A2, & Kelly Aerospace Part No. ES4114, as used in Cessna P/N DOFF-10300-B, C611503-0102 Alternator | Capacitor 0.5µf | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC250-002 | Cessna Aircraft Part No. C6AF-18827-A2, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4114, as used in Cessna Alternators DOFF-10300-J C611501-0102 | Capacitor 0.5µf | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC250-002 | Cessna Aircraft Part No. C6AF-18827-A2, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4114, as used in Cessna Alternators DOFF-10300-F C611501-0204 | Capacitor 0.5µf | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC250-003 | Cessna Aircraft Part No. 383758-S8B, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4111, as used in Cessna Alternators DOFF-10300-J C611501-0102 | Stator Bolt | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC250-003 | Cessna Aircraft Part No. 383758-S8B, & Kelly Aerospace Part No. ES4111, as used in Cessna P/N DOFF -10300-B, C611503-0102 Alternator | Stator Bolt | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC250-003 | Cessna Aircraft Part No. 383758-S8B, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4111, as used in Cessna Alternators DOFF-10300-F C611501-0204 | Stator Bolt | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC250-007 | Cessna Aircraft Part No. C5AF-10329-C, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4122, as used in Cessna Alternators DOFF-10300-F C611501-0204 | Insulator - Brush Terminal, Flat | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC250-007 | Cessna Aircraft Part No. C5AF-10329-C, & Kelly Aerospace Part No. ES4122, as used in Cessna P/N DOFF-10300-B, C611503-0102 Alternator | Insulator - Field Terminal, Flat | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC250-007 | Cessna Aircraft Part No. C5AF-10329-C, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4122, as used in Cessna Alternators DOFF-10300-J C611501-0102 | Insulator - Brush Terminal, Flat | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-001 | Cessna Aircraft Part No. 377284-S7, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4117, as used in Cessna Alternators DOFF-10300-J C611501-0102 | Screw #6-32, Brush Holder | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-001 | Cessna Aircraft Part No. 377284-S7, & Kelly Aerospace Part No. ES4117, as used in Cessna P/N DOFF-10300-B, C611503-0102 Alternator | Screw #6-32, Brush Holder | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-001 | Cessna Aircraft Part No. 377284-S7, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4117, as used in Cessna Alternators DOFF-10300-F C611501-0204 | Screw #6-32, Brush Holder | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-004 | Cessna Aircraft Part No. 383757S8B, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4121, as used in Cessna Alternators DOFF-10300-F C611501-0204 | Screw #10-32, Field Terminal | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-004 | Cessna Aircraft Part No. 383757S8B, & Kelly Aerospace Part No. ES4121, as used in Cessna P/N DOFF-10300-B, C611503-0102 Alternator | Screw #10-24, Field Terminal | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-004 | Cessna Aircraft Part No. 383757S8B, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4121, as used in Cessna Alternators DOFF-10300-J C611501-0102 | Screw #10-32, Field Terminal | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-005 | Cessna Aircraft Part No. 383255-S8, & Kelly Aerospace Part No. ES4129, as used in Cessna P/N DOFF-10300-B, C611503-0102 Alternator | Nut #10-24, Hex - Grd, Sta Terms | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-005 | Cessna Aircraft Part No. 383255-S8, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4129, as used in Cessna Alternators DOFF-10300-F C611501-0204 | Nut #10-24, Hex - Grd, Sta Terms | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-005 | Cessna Aircraft Part No. 383255-S8, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4129, as used in Cessna Alternators DOFF-10300-J C611501-0102 | Nut #10-24, Hex - Grd, Sta Terms | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-006 | Cessna Aircraft Part No. 383256-S8, & Kelly Aerospace Part No. ES4125, as used in Cessna P/N DOFF-10300-B, C611503-0102 Alternator | Nut 1/4-20, Hex - Bat Term | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-006 | Cessna Aircraft Part No. 383256-S8, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4125, as used in Cessna Alternators DOFF-10300-J C611501-0102 | Nut 1/4-20, Hex - Bat Term | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-006 | Cessna Aircraft Part No. 383256-S8, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4125, as used in Cessna Alternators DOFF-10300-F C611501-0204 | Nut 1/4-20, Hex - Bat Term | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-007 | Cessna Aircraft art No. C7AF-10329-C, & Kelly Aerospace Part No. ES4127, as used in Cessna P/N DOFF-10300-B, C611503-0102 Alternator | Insulator, Field Terminal, White | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-007 | Cessna Aircraft Part No. C7AF-10329-C, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4127, as used in Cessna Alternators DOFF-10300-J C611501-0102 | Insulator, Field Terminal, White | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-007 | Cessna Aircraft Part No. C7AF-10329-C, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4127, as used in Cessna Alternators DOFF-10300-E C611502-0204 | Insulator, Field Terminal, White | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-008 | Cessna Aircraft Part No. DOAF-10329-A, & Kelly Aerospace Part No. ES4124, as used in Cessna P/N DOFF-10300-B, C611503-0102 Alternator | Insulator, Bat Terminal Red | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-008 | Cessna Aircraft Part No. DOAF-10329-A, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4124, as used in Cessna Alternators DOFF-10300-J C611501-0102 | Insulator, Bat Terminal Red | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-008 | Cessna Aircraft Part No. DOAF-10329-A, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4124, as used in Cessna Alternators DOFF-10300-F C611501-0204 | Insulator, Bat Terminal Red | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-009 | Cessna Aircraft Part No. C7AF-10329-D, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4128, as used in Cessna Alternators DOFF-10300-J C611501-0102 | Insulator, Staterm - Black | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-009 | Cessna Aircraft Part No. C7AF-10329-D, & Kelly Aerospace Part No. ES4128, as used in Cessna P/N DOFF-10300-B, C611503-0102 Alternator | Insulator, Staterm - Black | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-009 | Cessna Aircraft Part No. C7AF-10329-D, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4128, as used in Cessna Alternators DOFF-10300-F C611501-0204 | Insulator, Staterm - Black | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-010 | Cessna Aircraft Part No. C7AF-10A383-A, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4116, as used in Cessna Alternators DOFF-10300-J C611501-0102 | Insulator Stator Terminal | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-010 | Cessna Aircraft Part No. C7AF-10A383-A, & Kelly Aerospace Part No. ES4116, as used in Cessna P/N DOFF-10300-B, C611503-0102 Alternator | Insulator Stator Terminal | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-010 | Cessna Aircraft Part No. C7AF-10A383-A, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4116, as used in Cessna Alternators DOFF-10300-F C611501-0204 | Insulator Stator Terminal | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-011 | Cessna Aircraft Part No. DOAF-10A383-A, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4115, as used in Cessna Alternators DOFF-10300-J C611501-0102 | Insulator Battery Terminal | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-011 | Cessna Aircraft Part No. DOAF-10A383-A, & Kelly Aerospace Part No. ES4115, as used in Cessna P/N DOFF-10300-B, C611503-0102 Alternator | Insulator Battery Terminal | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| AC260-011 | Cessna Aircraft Part No. DOAF-10A383-A, & Hartzell Engine Technologies, Kelly Aerospace Part No. ES4115, as used in Cessna Alternators DOFF-10300-F C611501-0204 | Insulator Battery Terminal | Hartzell Engine Technologies LLC | Current, Jun 2020 | — | — |
| ASG10001 | Ford Motor Company Alternator, Part Number DOFF-10300-B and Cessna Part Number C611503-0102 Drawing C611503, Revision G Dated 8/26/81 | Alternator | Aerospace Turbine Rotables | Current, Dec 2009 | — | — |
| ASG10001-13 | Cessna C611503-0102, C611503-0101, Ford DOFF-10300-B, ASG-10001-1, ASG-10001-7 | Alternator | Hartzell Engine Technologies LLC | Current, Apr 2015 | — | — |
| ASG10001-3 | Cessna Part Number C611503-0104 | Alternator | Aerospace Turbine Rotables | Current, Dec 2009 | — | — |
| ASG11000-1 | Cessna Part Number 1570213-6, Cessna Part Number C611501-0102 | Alternator | Aerospace Turbine Rotables | Current, Dec 2009 | — | — |
| K0531012-2 | 0531012-2 | Dorsal Fairing | Knots 2U Ltd. | Current, Sep 2013 | — | — |
| LSM-500-089 | Modification Part | Installation of A Boom Beam Taxi/Landing Light System | Lopresti Speed Merchants | Current, Nov 2010 | — | — |
| RA066-30026 | Cleveland Wheels & Brakes P/N 066-30026 Rapco, Inc. P/N RA66-109 Aviation Products Systems Inc. P/N APS66-10900 | Brake Lining | Rapco Inc. | Current, Jun 2012 | — | — |
| RA066-30026 | Cleveland Wheels & Brakes P/N 066-30026 Rapco, Inc. P/N RA66-109 Aviation Products Systems Inc. P/N APS66-10900 | Brake Lining | Rapco Inc. | Current, Jul 2012 | — | — |
| RA066-30026-4K | Rapco, Inc. P/N RA66-109-4K, RA066-30026-4K | Brake Lining Kit | Rapco Inc. | Current, Jun 2012 | — | — |
| RA066-30026-4K | Rapco, Inc. P/N RA66-109-4K, RA066-30026-4K | Brake Lining Kit | Rapco Inc. | Current, Jul 2012 | — | — |
| STS-M12 | 0712603-2 | Solenoid Contactor Battery Master | Sky-Tec Partners Ltd. | Current, Feb 2015 | — | — |
Sell any of these? List it free and this table names you, as does the page of every OEM number it replaces.
Source: the FAA PMA database, refreshed weekly. A PMA part is approved for the specific eligibility on its FAA record; whether it may be installed on a particular aircraft, engine or component is the installer's determination.