McFarlane Aviation Products

Part Number: TLSL-KT-2

STOP LUG KIT, Torque Link

Eligibility Notice

Please verify that this product is eligible for your aircraft before adding it to your cart.

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Approval	Kit Containing Approved Components
Condition	New
Manufacturer	McFarlane Aviation, Inc.
Unit of Measure	Each
Retail Price	$372.62
Your Price	$339.49
Stock Status	In Stock

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Product Details

Torque Link Stop Lugs and Safety Plate
Replace worn out stop lugs to reduce drag? Really?

This often overlooked but important part is affordable at McFarlane!
The torque link stop lug is a sacrificial part that hammers against a flat spot on the lower part of the shock strut outer tube when the strut extends after takeoff. This prevents the strut from overextending and forces the nose wheel and rudder system into proper alignment for flight.

Due to repeated hammering with every takeoff, these stop lugs must be periodically replaced. Excessive wear can allow overextension of the strut. They also often wear unevenly resulting in inconsistent alignment of the nose wheel in flight which then causes extra drag and yaw. The extra yaw can require increased rudder trim which causes even more drag. So yes, replacing a torque link stop lug can reduce drag!

Safety plate features bend up tabs to secure stop lug bolts
Super tough 4130 alloy steel for corrosion resistance
Kits include stop lug, safety plate and applicable 3/16" bolts

Other nose wheel steering parts:

Maintenance Tip:
Replace the stop lug if it is no longer flush with the strut, mushroomed, worn, rounded, bent away from the torque link, or if it has stress cracks. The safety plate should not be reused.

More important than you think
Overextension of the nose strut due to a worn out stop lug can lead to a cascade of problems. McFarlane A&P mechanics have seen struts over extend to the point where the metering pin comes out of the orifice. This results in loss of dampening action and the pin hammering the orifice every landing, and distorting and enlarging it. Over time, the excess nose strut travel and lack of dampening can result in fatigue cracks in the torque link arms. McFarlane recommends thoroughly inspecting all nose strut components when replacing a severely worn stop lug.

Kit Components

Part Number TLSL-KT-2 contains the following:

Component	Description	Quantity	U/M
AN3H3A	BOLT, 3/16, Drilled Head	2.000	EACH
MC0442506-8	STOP LUG, Torque Link	1.000	EACH
MC0442506-9	SAFETY PLATE, Stop Lug, Torque Link	1.000	EACH

Related Categories

Landing Gear Components >> Torque Link Stop Lugs and Safety Plate

Eligible Aircraft

Make	Series	Model	Beginning S/N	Ending S/N	Quantity Per Aircraft	Location	Comment	Eligibility Chart
Cessna	172	172H (T-41A)	17254893	17256512	1	Nose Strut	Standard Duty Landing Gear	6745
Cessna	172	172I	17256513	17257161	1	Nose Strut	Standard Duty Landing Gear	6745
Cessna	172	172K	17257162	17259223	1	Nose Strut	Standard Duty Landing Gear	6745
Cessna	172	172L	17259224	17260758	1	Nose Strut	Standard Duty Landing Gear	6745
Cessna	172	172M	17260759	17263458	1	Nose Strut	Standard Duty Landing Gear	6745
Cessna	172	172M	17263459	17267584	1	Nose Strut		6745
Cessna	172	172N	17267585	17274009	1	Nose Strut		6745
Cessna	172	172P	17274010	17276654	1	Nose Strut		6745
Cessna	172	172Q	17275869	17276211	1	Nose Strut		6745
Cessna	172	F172H	F17200655	F17200754	1	Nose Strut	Standard Duty Landing Gear	6745
Cessna	172	F172H	F172-0320	F172-0654	1	Nose Strut	Standard Duty Landing Gear	6745
Cessna	172	F172K	F17200755	F17200804	1	Nose Strut	Standard Duty Landing Gear	6745
Cessna	172	F172L	F17200805	F17200904	1	Nose Strut	Standard Duty Landing Gear	6745
Cessna	172	F172M	F17200905	F17201234	1	Nose Strut	Standard Duty Landing Gear	6745
Cessna	172	F172M	F17201235	F17201514	1	Nose Strut		6745
Cessna	172	F172N	F17201515	F17202039	1	Nose Strut		6745
Cessna	172	F172P	F17202040	F17202254	1	Nose Strut		6745
Cessna	172	FR172E	FR17200001	FR17200060	1	Nose Strut	Heavy Duty Gear	6745
Cessna	172	FR172F	FR17200061	FR17200145	1	Nose Strut	Heavy Duty Gear	6745
Cessna	172	FR172G	FR17200146	FR17200225	1	Nose Strut	Heavy Duty Gear	6745
Cessna	172	FR172K	FR17200591	FR17200675	1	Nose Strut		6745
Cessna	172	R172E (T-41B,C,D)	R172-0001	R1720335	1	Nose Strut		6745
Cessna	172	R172F (T-41D)	R172-0336	R172-0409	1	Nose Strut		6745
Cessna	172	R172G (T-41C,D)	R1720410	R1720444	1	Nose Strut		6745
Cessna	172	R172H (T-41D)	R1720445	R1720620	1	Nose Strut		6745
Cessna	172	R172K	R1722000	R1723454	1	Nose Strut		6745
Cessna	182	182K	18257626	18258505	1	Nose Strut	Heavy Duty Gear	6745
Cessna	182	182L	18258506	18259305	1	Nose Strut	Heavy Duty Gear	6745
Cessna	182	182M	18259306	18260055	1	Nose Strut	Heavy Duty Gear	6745
Cessna	182	182N	18260056	18260825	1	Nose Strut	Heavy Duty Gear	6745
Cessna	206	P206B	P206-0307	P206-0419	1	Nose Strut	Heavy Duty Gear	6745
Cessna	206	P206C	P206-0420	P206-0519	1	Nose Strut	Heavy Duty Gear	6745
Cessna	206	P206D	P206-0520	P206-0603	1	Nose Strut	Heavy Duty Gear	6745
Cessna	206	P206E	P20600604	P20600647	1	Nose Strut	Heavy Duty Gear	6745
Cessna	206	TP206B	P206-0307	P206-0419	1	Nose Strut	Heavy Duty Gear	6745
Cessna	206	TP206C	P206-0420	P206-0519	1	Nose Strut	Heavy Duty Gear	6745
Cessna	206	TP206D	P206-0520	P206-0603	1	Nose Strut	Heavy Duty Gear	6745
Cessna	206	TP206E	P20600604	P20600647	1	Nose Strut	Heavy Duty Gear	6745
Cessna	206	TU206B	U206-0657	U206-0914	1	Nose Strut	Heavy Duty Gear	6745
Cessna	206	TU206C	U206-0915	U206-1234	1	Nose Strut	Heavy Duty Gear	6745
Cessna	206	TU206D	U206-1235	U206-1444	1	Nose Strut	Heavy Duty Gear	6745
Cessna	206	TU206E	U20601445	U20601700	1	Nose Strut	Heavy Duty Gear	6745
Cessna	206	TU206F	U20601701	U20602199	1	Nose Strut	Heavy Duty Gear	6745
Cessna	206	U206B	U206-0657	U206-0914	1	Nose Strut	Heavy Duty Gear	6745
Cessna	206	U206C	U206-0915	U206-1234	1	Nose Strut	Heavy Duty Gear	6745
Cessna	206	U206D	U206-1235	U206-1444	1	Nose Strut	Heavy Duty Gear	6745
Cessna	206	U206E	U20601445	U20601700	1	Nose Strut	Heavy Duty Gear	6745
Cessna	206	U206F	U20601701	U20602199	1	Nose Strut	Heavy Duty Gear	6745

Frequently Asked Questions

Question
What does the Torque Link Stop Lug do? The torque link stop lugs are more important than you would think. Overextension of the nose strut due to a worn out stop lug can lead to a cascade of problems. McFarlane A&P mechanics have seen struts over extend to the point where the metering pin comes out of the orifice. This results in loss of damping action and the pin hammering the orifice every landing and distorting and enlarging it. Over time, the excess nose strut travel and lack of damping can result in fatigue cracks in the torque link arms. McFarlane recommends thoroughly inspecting all nose strut components when replacing a severely worn stop lug. The stop lug also acts as a centering device aligning the nose wheel and wheel pant straight with the airplane and slip stream after it has left the runway. Worn stop lugs can allow the nose wheel to lock in a turned position in flight that will require holding rudder for coordinated flight. Retractable gear aircraft depend on the stop lug to properly center the nose gear steering before it retracts into the wheel well.

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