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1-1/4" - 1-3/4" Tube Diameter

Choose your size. Choose your quantity.

Left Hand Round Tube Adapters
Fits Tube Size (OD X Wall)	Thread Size	Pack of (2)	Bag of (20)
Fits Tube Size (OD X Wall)	Thread Size	Pack of (2)	Bag of (20)

1-1/4 - 1-3/4" Tube Dia.		LH Pack of (2)	LH Bag of (20)
1-1/4” OD X .095”	5/8-18	C73-941-2	C73-941-20
1-1/4” OD X .095”	3/4-16	C73-943-2	C73-943-20
1-1/4” OD X .120”	5/8-18	C73-945-2	C73-945-20
1-1/4” OD X .120”	3/4-16	Hex Only	Hex Only
1-3/8” OD X .095”	5/8-18	C73-949-2	C73-949-20
1-3/8” OD X .095”	3/4-16	Hex Only	Hex Only
1-3/8” OD X .120”	7/8-14	C78-101-2	C78-101-20
1-1/2” OD X .120”	7/8-14	C78-105-2	C78-105-20
1-3/4” OD X .120”	11/4-12	C78-113-2	C78-113-20

Image	Part Number	Description	Price	Unit
	C73-941-2	(2) TUBE ADAPTER 5/8-18 LH 1-1/4 X 0.095 Precision CNC machined Chromoly (4130N) Made in the USA Increase quantity in your cart for additional savings.	$31.99	Pkg of 2
	C73-941-20	(20) TUBE ADAPTER 5/8-18 LH 1-1/4 X 0.095 Precision CNC machined Chromoly (4130N) Made in the USA Increase quantity in your cart for additional savings.	$318.99	Bag of 20
	C73-943-20	(20) TUBE ADAPTER 3/4-16 LH 1-1/4 X 0.095 Precision CNC machined Chromoly (4130N) Made in the USA Increase quantity in your cart for additional savings.	$306.99	Bag of 20
	C73-945-2	(2) TUBE ADAPTER 5/8-18 LH 1-1/4 X 0.120 Precision CNC machined Chromoly (4130N) Made in the USA Increase quantity in your cart for additional savings.	$31.99	Pkg of 2
	C73-945-20	(20) TUBE ADAPTER 5/8-18 LH 1-1/4 X 0.120 Precision CNC machined Chromoly (4130N) Made in the USA Increase quantity in your cart for additional savings.	$318.99	Bag of 20
	C73-949-2	(2) TUBE ADAPTER 5/8-18 LH 1-3/8 X 0.095 Precision CNC machined Chromoly (4130N) Made in the USA Increase quantity in your cart for additional savings.	$32.99	Pkg of 2
	C73-949-20	(20) TUBE ADAPTER 5/8-18 LH 1-3/8 X 0.095 Precision CNC machined Chromoly (4130N) Made in the USA Increase quantity in your cart for additional savings.	$328.99	Bag of 20
	C78-101-2	(2) TUBE ADAPTER 7/8-14 LH FITS 1-3/8 X 0.120 TUBE Precision CNC machined Chromoly (4130N) Made in the USA Increase quantity in your cart for additional savings.	$32.99	Pkg of 2
	C78-101-20	(20) TUBE ADAPTER 7/8-14 LH FITS 1-3/8 X 0.120 TUBE Precision CNC machined Chromoly (4130N) Made in the USA Increase quantity in your cart for additional savings.	$328.99	Bag of 20
	C78-105-2	(2) TUBE ADAPTER 7/8-14 LH FITS 1-1/2 X 0.120 TUBE Precision CNC machined Chromoly (4130N) Made in the USA Increase quantity in your cart for additional savings.	$51.99	Pkg of 2
	C78-105-20	(20) TUBE ADAPTER 7/8-14 LH FITS 1-1/2 X 0.120 TUBE Precision CNC machined Chromoly (4130N) Made in the USA Increase quantity in your cart for additional savings.	$328.99	Bag of 20
	C78-113-2	(2) TUBE ADAPTER 1-1/4-12 LH FITS 1-3/4 X 0.120 TUBE Precision CNC machined Chromoly (4130N) Made in the USA Increase quantity in your cart for additional savings.	$56.99	Pkg of 2
	C78-113-20	(20) TUBE ADAPTER 1-1/4-12 LH FITS 1-3/4 X 0.120 TUBE Precision CNC machined Chromoly (4130N) Made in the USA Increase quantity in your cart for additional savings.	$569.99	Bag of 20

Pro-Werks’ selction tubing related components solve many common challenges for the chassis builder. Our linkage and suspension selection is precision CNC machined from Chromoly Steel (4130N) - and we take great pride in our ultra-fine finishes.

The super-tight tolerances of our Chromoly tube ends assure a proper fit in tubing during the welding process. High standards are maintained on thread sizing of these threaded tube ends and the slots in the slot clevises are the right size; slightly wider for the correct fit.

Over 100 size/thread combinations and Made in the USA!

Tube Adapter Size Charts »

Weld-in threaded tube adapters have unlimited uses. Available in both Right or Left hand thread configurations; Pro-werks threaded tube ends work well with Rod ends and threaded Clevises.

The LH thread indicator groove provides for quick clarification of the thread direction during the fabrication process, and the optional hex feature is available on select left hand sizes for ease of adjustment using a wrench.

Anatomy of a great Tube Adapter:

There is so much riding on these components, it’s worth using the best parts.

Available in pack quantities as listed, or bulk form in conveniently packaged bags of 20 for volume users. Buy more, save more!

Quantity discounts are available for tubing inserts just increase the quantity in your cart to earn extra savings - call or email us for your special requests.

Note: Welding should always be performed by a qualified welder

Proudly Made in the USA

Customer Comments:

"Pro-werks tube adapters are a great product! I especially like the hex option."
– Another Satisfied Customer at the PRI Show

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Quick Pins
Dia. x Grip	Pack of (2)	Fits Slot Clevis
Dia. x Grip	Pack of (2)	Fits Slot Clevis
1/4" x .500"	C73-350-2	C73-962-2
1/4" x .800"	C73-351-2	-
1/4 x 1"	C73-352-2	-
1/4 x 1.3"	C73-353-2	-
1/4 x 1.5"	C73-354-2	-
5/16 x .800"	C73-355-2	C73-964-2
5/16 x .800"	C73-355-2	C73-965-2
5/16 x 1"	C73-356-2
5/16 x 1.3"	C73-357-2	-
5/16 x 1.5"	C73-358-2	-
3/8 x .800"	C73-360-2	C73-966-2
		C73-966-3
		C73-966-4
		C73-966-5
3/8 x 1"	C73-361-2	C73-987-2
3/8 x 1.3"	C73-362-2	-
3/8 x 1.5"	C73-363-2	-
3/8 x 2"	C73-364-2	-