Part# 08-11677
MFR Model# SL16740A
Vendor Part NumberQuantity NeededDescriptionPart Number
SL16740A 1Valve, Exhaust08-11677


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.


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best fitting aftermarket out there.

Darryl F
March 16, 2021

Great product. works as described

Bens M
May 30, 2020

Exactly as described. High pressure fuel pump is generally used on injected engines, low pressure pump for carbureted engines.

Mike H
April 19, 2020

Prompt delivery and a good quality pump.

Don J
December 9, 2018

Replacement pump well packaged and now working to specification. Maybe I missed the information in the listing but suggest you state that the overhauled pump comes with gasket and O-rings. I ordered an extra pump to accessory case gasket.

Roger H
September 15, 2018

especially like the e mail reciept

David W
August 30, 2018

Installed on an M20-j. Pressure is right on the redline for the airframe. It’s well within specs for the engine. Worked as expected.

Brad B
June 22, 2018

Great parts and great price Ive been using Superior for years and have no problem using them as replacement for OEM

William B
April 20, 2018

James H
December 15, 2017

No problems except didnt have instructions for return of pump for credit.

Kim P
October 30, 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.