SUPERIOR SA402151 STUD 5/16 X 1 1/4 LONG

Part# 05-03634
MFR Model# SA402151
Vendor Part NumberQuantityDescriptionPart Number
SA402151 + 2Stud05-03634


Uniform hardness all the way through the steel barrel walls which allows the barrel to provide even wear while withstanding extreme cylinder temperatures and pressures.

Exhaust and intake ports are volumetrically matched to maximum output and performance.

Increased port wall thickness - eliminates problems with warping and cracking.

Computer-generated head fin configuration - deliver more uniform heat transfer and fewer "hot" spots.

Manufactured from the most advanced alloys available - exceed industry standard for strength and porosity.

+ Included with stud assembly.
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -


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White B Verified Purchase

SUPERIOR SA402151 STUD 5/16 X 1 1/4 LONG

December 8, 2022

Part arrived on time, and was packaged very well.

Buell P
April 29, 2020

fit just like stock

May 26, 2017

West A
March 2, 2017

Just what I needed.

James E
November 25, 2020

nice unit but had to be returned due ti millinium being emblased on cover insted of continental.

Roger M
November 24, 2017


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: What is the size and thread dimensions of this exhaust manifold stud?

The parts manual calls it out as 5/16" thread x 1-1/4" long.

Q: What is the thread pitch on each end?


Q: What is the difference between the standard, P03 and P07 versions of this stud?

p03 and p07 are oversized.

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