I have a Cummins 6BT5.9 with no glow plugs, will one of the 4 injector adaptors fit it?

I'm not a diesel mechanic but I definitely feel that 1 of the 4 adapters will fit.

Is there a glow plug adapter for a duramax 6.6l lmm?

Yes. One of the reasons I bought it was to check duramax compression.

Will one of the compression adapters fit a duramax 6.6l 2009 duramax lmm?

I'm not sure, but there is a good selection of sizes. If you look up your engine you will be able to determine the thread size and check.

Can this be used with a yanmar 1gm marine engine? it would need to be plugged into the injector hole since there's no glow plug.

Yes it should work - this product worked great for my project.

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- 17 Pc Diesel Engine Compression Tester Kit Tool Set Automotive Compressor

Product ID: 81009048

Details

Brand
DAYUAN
Item Weight
6.7 pounds
Item dimensions L x W x H
15 x 12 x 3
Material
Alloy Steel
Number of Items
17

🔧9 glow plug + 4 injector adapters

⏱️0-1000 PSI / 70 Bar precision range

♻️Built-in resetter for quick reuse

32.21 OMR

Duties & taxes included

In stock

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Description

🔩 Diagnose Like a Pro, Drive with Confidence!

RAPID RESET FUNCTION - Built-in resetter valve lets you quickly release pressure and move seamlessly between tests, saving you time.
DURABLE ALLOY STEEL BUILD - Crafted from premium alloy steel for long-lasting performance in demanding automotive environments.
UNIVERSAL ADAPTER ARSENAL - Includes 9 glow plug and 4 injector adapters to fit most diesel cars, trucks, and tractors—no guesswork needed.
PRECISION PRESSURE MASTERY - Accurately measure diesel compression from 0 to 1000 PSI / 70 Bar for reliable diagnostics every time.
COMPREHENSIVE DIESEL DIAGNOSTICS - Identify worn valves and piston rings with ease, empowering you to prevent costly engine failures.

The DAYUAN 17Pcs Diesel Engine Compression Tester Tool offers professional-grade accuracy with a 0-1000 PSI / 70 Bar gauge, a comprehensive set of 9 glow plug and 4 injector adapters, and a built-in resetter valve. Designed for diesel cars, trucks, and tractors, this durable alloy steel kit enables precise diagnostics of engine compression to detect wear and maintain peak performance.

Specifications

ASIN	B07FLTBH6C
Best Sellers Rank	#30,897 in Automotive ( See Top 100 in Automotive ) #19 in Engine Compression Gauges #81 in Tool Sets (Automotive)
Brand	DAYUAN
Brand Name	DAYUAN
Customer Reviews	4.2 out of 5 stars 845 Reviews
Item Dimensions	15 x 12 x 3 inches
Item Weight	6.7 pounds
Item dimensions L x W x H	15 x 12 x 3 inches
Manufacturer	Yinyuan tools
Material	Alloy Steel
Material Type	Alloy Steel
Model	YT1010
Number of Items	17
Number of Packs	1
Part Number	YT- N1010
UPC	737123870523
Unit Count	14 count
Warranty Description	1 Year

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