what size conduit should I use with 11/ 2 wiring?

It depends on whether the wire has a casing on it and/or shielded. And, I'm not familiar with and 11/2 type cable. A 10/2 shielded cable is .6 inches. So from that I would say you would need at least a 1/2 inch if not a 5/8 inch conduit.

What is the outside to outside diameter?

Difficult to get a precision number. Using a digital caliper I measure OD of 9/16 inch or 14.2 mm. Because this is a split tube the OD will depend on what you put in it.

What is the Temperature range?

the wire loom does great , it is designed to protect wiring on & around engines under normal running temperature , close to exhaust manifolds . It will melt as plastic will do.

Is this precut to slide the wire in or will ou have to cut it ?

Is a precut to slide the wire in,

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86632 3/8 in. x 100 Ft. Black Flex Split Wire Conduit

Product ID: 18130794

Details

Brand
Dorman
Color
Black
Material
Plastic
Product Dimensions
0.38"W
Style
Conduit

📏100 ft length for extensive coverage

🖤Sleek black finish for professional look

🛡️Durable plastic ensures long-lasting protection

€ 96.71

Duties & taxes included

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Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🖤 Shield your wires with style and strength — don’t settle for less!

LIFETIME SUPPORT - Access ASE Blue Seal Certified tech support whenever you need it.
EXPERT BACKED DESIGN - Developed by a century-strong team of automotive aftermarket pros.
PRO GRADE PROTECTION - Engineered for safe, high-quality electrical repairs that stand out.
VERSATILE APPLICATION - Perfect for automotive, industrial, and DIY projects—adapt on the fly.
DURABILITY YOU CAN TRUST - Crafted from premium materials to resist wear and maintain shape over time.

The Dorman 86632 is a 3/8 inch by 100-foot black flexible split wire conduit designed for professional-grade electrical repairs. Made from durable plastic, it offers long-lasting protection and a sleek appearance, suitable for automotive and industrial use. Backed by over 100 years of engineering expertise and ASE Blue Seal Certified support, this conduit ensures reliable performance and peace of mind with a limited lifetime warranty.

Specifications

ASIN	B002H97L4U
Best Sellers Rank	#73,973 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #28 in Electrical Conduits
Brand	Dorman
Built-In Media	100 ft Black Flex Split Wire Conduit
Color	Black
Customer Reviews	4.7 out of 5 stars 1,037 Reviews
Enclosure Material	tile
Global Trade Identification Number	00037495866323
Installation Type	Self-Adhesive
Item Dimensions L x W	0.38"W
Item Type Name	3/8 In. Black Flex Split Wire Conduit, 100 Feet
Item Weight	1.1 pounds
Manufacturer	Dorman Products
Material	tile
Mfr Part Number	86632
Model Number	86632
Number of Packs	1
Number of Pieces	1
Part Interchange Info	86632
Product Dimensions	0.38"W
Style	Conduit
Style Name	Conduit
UPC	037495866323
Unit Count	100 Feet
Warranty Description	Limited Lifetime

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