Product Summary

Universal Fit, .94" Overall Length, Brass, Natural

  • Constructed from solid brass
  • Features an all brass construction with a copper crush washer
  • Overall length measures .94" and has a thread pitch of MM12-1.5 male
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Key Specs

MFG. Part #2277
Overall Length.94"
Thread PitchMM12-1.5 male
Material TypeBrass
FinishNatural
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Need To Know

Quick and Easy Returns

Return Policy

AutoMeter 2277 Details

As featured on Classic Truck’s Week to Wicked. Watch the transformation here!

This LS Series water temperature sender fitting allows your aftermarket 1/8" NPT water temperature sending unit to be installed in your passenger side cylinder head.

Note: I.D. of this adapter where the sender probe will go through is .309 and would require drilling to approximately 5/16" or .312 for a Stewart Warner sender to pass through.

Item Details

12mm-1.5 Male to 1/8" Female

Application

This adapter works with all LS Series motors:  

  • LS1
  • LS2
  • LS3
  • LS6
  • LS7

Charts

AutoMeter 2277 Specifications

KEY SPECS
MFG. Part #2277
BrandAutoMeter
Overall Length.94"
Thread PitchMM12-1.5 male
Material TypeBrass
FinishNatural
GENERAL
GTIN Code046074022777
Thread Pitch (2)1/8" NPT
Sold in QuantityEach
NotesIncludes copper crush washer.

Ratings & Reviews

4.1

16 Reviews

Overall Assessment

Customers appreciate the product's practicality, affirming it aptly suits LS swaps to substitute factory allen plug with temperature sensors. Reviewers commend its perfect fit and usability, stating it effortlessly accommodates 1/8 npt fan switches and dash gauges. Unlike competitor products, it resolves the issue of losing an ECM input. However, caution is advised as a few users notified about the center hole being unaligned, potentially leading to damage. Despite these rare cases, numerous customers would repurchase if necessary given its performance, quality, and valuable solution it imparts to specialized problems.

4.1

16 reviews

5

11

4

1

3

1

2

0

1

3

Most Liked Positive Review

5.0

Perfect part & [...]low cost!

This is the only fitting to get from metric to NPT to adapt the water temp gage. If you try to use one of the head ports you will lose an input to the ECM and really screw things up! This solved the problem, Neithor Jegs or Summit had it or could help me with the problem and technical advise to avoid the ECM problem. I would have never figured it out! Thank you!

Most Liked Negative Review

1.0

Poor quality, broke in cylinder head

The hole in the center was not drilled straight (was offset to the centerline), and wouldn't allow the sending unit to screw into the adapter. After drilling the hole straight, once I tried to tighten the adapter, it broke off in the head! I had to re-drill and tap the head, which was a HUGE pain in the rear. If I could give this negative stars, I would have.

Filter by Ratings

I would buy again

5.0

2 years ago

Td

Nebraska

Verified

Great product

Would Recommend

Would buy again.

4.0

2 years ago

Husker724

Lincoln Nebraska

Verified

Worked as it should.

Would Recommend

Simplified ls swap

5.0

6 years ago

Greasemonkey

Canastota ny

Verified

Fits in passenger head in place of factory Allen plug to add temp sensor like on the drivers side but for an aftermarket gauge neat and out of the way no hose splices

Would Recommend

I WOULD BUY AGAIN IF NEEDED

5.0

6 years ago

mike71ride

Campobello SC

Verified

product was great fit and delivery was quick

Would Recommend

If Needed , Yes

5.0

6 years ago

Dakota LS

Louisville, KY

Verified

used to add temp guage on an LS swap , worked perfect !!

Would Recommend

I was thinking " nobody's going to have this"

5.0

9 years ago

Pops

Pittsburg Ca

Verified

I Was thinking "nobody's go to have this". First thing I do is look at Speedway. Problem solved

Would Recommend

Perfect. Exactly what I need.

5.0

10 years ago

Brad

Vail, AZ

Verified

LS engine swap adapter for temp sensor sending unit

Would Recommend

sender broke off in the head!!!!

1.0

10 years ago

jb

az

Verified

Great product if it wouldn't break inside urban head. Was super excited when received only to be massively disappointed

Would Not Recommend

Sender would fit in adapter. Had to be drilled out.

1.0

10 years ago

Mike

KS

Verified

Sender would not fit inside the adapter.

Would Not Recommend

great adapter!

5.0

11 years ago

nickname

Indiana

Verified

Quick easy fix.priced right! I used this to adapt a 1/8 npt fan switch.

Would Recommend

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Showing 10 of 16 reviews

Questions & Answers

2 Questions • 4 Answers

I have the Speedway water temp gauge G-WTR-01. Can I use its sending unit with this adapter fitting in a LS engine?

by Alex

• 10 years ago

1 answer

When screwed into the adapter, how much of the temperature probe on the S-W 280EA sensor is exposed to the water (past the adapter's tread-end)?

by Ken

• 15 years ago

3 answers

2 of 2 questions shown

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