Product Summary

Universal Fit, 12mm-1.5 Male Thread Pitch

  • Features a 6061 aluminum fitting for no corrosion of dissimilar metals
  • Has a brass sealing crush washer for no leak installation
  • Specially designed for temperature gauge senders
  • Replaces your old and worn out fittings that can and will cause issues down the road
  • Measures 12mm in length and has a 1/2NPT thread pitch
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Key Specs

MFG. Part #91680918
BrandSpeedway Motors
Thread Pitch12mm-1.5 Male
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Speedway Motors 91680918 Details

So you’ve got your LS engine swap complete and ready to run in your classic, a turn of the ignition away from weeks or months of planning and work.  That’s about the time everyone realizes that older original equipment and aftermarket gauges with pipe thread senders and connectors will not plug into the LS platform of engines.  Water temp and oil pressure ports on the Gen IV engines are a metric straight thread with an o ring seal.  Speedway has you covered, as usual, with these easy adaptors to make your gauges work. 

  • 6061 aluminum fitting for no corrosion of dissimilar metals
  • Brass sealing crush washer for no leak installation
  • Designed for temperature gauge senders
  • 12mm x 1/2NPT
  • Sold each

Specs

Total length of both fittings is 2.00". The M16 thread is .50", 1.50"

Speedway Motors 91680918 Specifications

KEY SPECS
MFG. Part #91680918
BrandSpeedway Motors
Thread Pitch12mm-1.5 Male
GENERAL
Thread Pitch (2)1/2" NPT Female
Sold in QuantityEach

Ratings & Reviews

5

13 Reviews

Overall Assessment

Customers highly praised our product for its perfect fit and effective functionality in adapting factory sending units and temperature sensors to LS engines. The product is deemed essential for LS swaps with older GM sensors and specially appreciated for its suitability with vintage models like the '66 C10 and '69 Chevelle. It stands out for its easy installation, avoiding issues such as leakage and unwanted contact with other parts. However, some customers expressed a desire for the gauge sensor to protrude further into the cylinder head. Overall, it's a highly recommended product for its practicality and reliable performance.

5

13 reviews

5

13

4

0

3

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Works great

5.0

4 months ago

Frank

Oshkosh wi

Verified

Works perfect for running a mechanical temp gauge on my ls swap project

Would Recommend

Works perfectly

5.0

3 years ago

Skeleton Creek

Franklin, Indiana

Verified

Used it to adapt my factory sending unit to my LS swapped 66 C10

Would Recommend

Must have for LS swap with factory temp gauge

5.0

3 years ago

Tom

Moore OK

Verified

Perfect adapter for older GM temp sensor. Replaced similar product that was too long and made sensor contact firewall at pass. side head.

Would Recommend

It was what I needed

5.0

3 years ago

Jeff

Texas

Verified

It worked to adapt a manual temp gauge to my LS.

Would Recommend

Yes would buy again

5.0

3 years ago

Spooner

Kentucky

Verified

Just what needed

The part fit perfectly and isn't leaking so I am a happy cus

5.0

5 years ago

Steven

Baton Rouge, LA

Verified

I used this part to install a 1969 Chevelle temperature sensor on my LS1 engine so I can use the factory gauges.

Would Recommend

Worked perfectly

5.0

6 years ago

Michael Flynn

Allentown,PA

Verified

I just pulled the plug on the passenger side head and stuck this in and put my mechanical temp gauge in it.

Would Recommend

Great product

5.0

6 years ago

Brian

missouri

Verified

works great

Would Recommend

Yes

5.0

6 years ago

Tim

Ne

Verified

Great parts work great and easy install

Would Recommend

Another great product!

5.0

6 years ago

rollincoalk5

Carrollton,Texas

Verified

Works perfect for my stock temp sending unit to go into the 5.3 so my stock temp gauge will work

Would Recommend

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