What's the difference between the 38001 and 38006

From a separate website the diameters 38001 is ~ 3.58” and the 38006 is ~ 3”. Other dimensions are the same. Need to look at mfgr specs.

will any of these idler pulleys work on my 1979 lincoln continnental mark 5 400 engine

I may be wrong but I believe in 1979 they used V-Belts and these idler pulleys are for serpentine Belts 5455-09056246 this is the part number for an idler closer to what your looking for. Check on parts geek website. If the pulley is still in good condition you can press a new bearing into it. Bearing numbers are printed/stamped on the outside of the bearing and are easily sourced on amazon. It’s usually a bearing number like 203. You can also measure the bearings diameter, thickness and center hole dimension to get the correct bearing.

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🚗 Keep your ride smooth and stylish!

📏 COMPACT DESIGN - Lightweight at 10.2 ounces, easy to handle and install.
🔩 PREMIUM QUALITY - Engineered for optimal performance and longevity.
🔄 PERFECT ALIGNMENT - Ensures your drive belt stays on track, reducing wear and tear.
🔒 RELIABLE REPLACEMENT - An ACDelco Gold part you can trust for your vehicle's needs.
🛠️ VERSATILE COMPATIBILITY - Fits General Motors vehicles and most makes and models.

The ACDelco Gold 38001 Idler Pulley is a premium aftermarket replacement part designed to maintain proper alignment and routing of your vehicle's drive belt. Crafted from durable steel and manufactured in the USA, this idler pulley meets stringent specifications for fit, form, and function, ensuring compatibility with General Motors vehicles and a wide range of other makes and models.

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Manufacturer	ACDelco
Brand	ACDelco
Model	ACDelco - Idler Pulley (B) (38001)
Item Weight	10.2 ounces
Product Dimensions	3.6 x 3.6 x 2 inches
Country of Origin	USA
Item model number	38001
Is Discontinued By Manufacturer	No
Exterior	Machined
Manufacturer Part Number	38001
OEM Part Number	88909582

ACDelco Gold 38001 (88909582) Idler Pulley

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