Product Description
Upgrade the reliability and appearance of your Duramax engine bay with the WEHRLI CUSTOM FAB WCF100860 UPPER COOLANT PIPE for 2001-2005 LB7 and LLY Duramax engines. This precision-fabricated aluminum coolant pipe replaces the factory rubber upper radiator hose with a durable high-strength solution designed to improve longevity and eliminate common hose deterioration.
Constructed from heavy-duty aluminum with bead-rolled ends for secure hose retention, the Wehrli coolant pipe is engineered for durability under extreme temperature and pressure conditions. The pipe includes high-quality silicone couplers and T-bolt clamps for a secure installation while offering multiple powder-coat color options to complement your Duramax engine bay build.
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Key Features
- Direct replacement for the factory rubber upper coolant hose
- Heavy-duty aluminum pipe construction
- Bead-rolled ends for improved hose retention
- Includes silicone couplers and heavy-duty T-bolt clamps
- Powder-coat color options available
- Improves engine bay durability and appearance
Fitment
- 2001 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LB7
- 2002 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LB7
- 2003 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LB7
- 2004 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LB7
- 2004.5-2005 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LLY
- 2001-2005 GMC Sierra 2500HD / 3500HD 6.6L Duramax LB7 / LLY
This coolant pipe replaces the OEM rubber upper hose and fits using the factory hard pipe connected to the thermostat housing. Compatible with OEM-style radiator and cooling system components.
Replaces GM Part Numbers: 15792832, 15198345.
Frequently Asked Questions
What does this coolant pipe replace?
The WCF100860 replaces the factory rubber upper coolant hose found on 2001-2005 LB7 and LLY Duramax engines.
Does this pipe improve performance?
This upgrade is primarily for durability and appearance. It eliminates the rubber hose which can degrade over time and replaces it with a stronger aluminum pipe.
Does the kit include clamps and couplers?
Yes. The pipe includes silicone couplers and heavy-duty T-bolt clamps for installation.
Does the pipe come powder coated?
Yes. Wehrli Custom Fabrication offers multiple powder-coat color options allowing the pipe to match your engine bay theme.
Does this pipe include a WCFab badge?
No. This particular LB7/LLY version does not include the WCFab badge used on some other coolant pipe models.
Specifications for WEHRLI CUSTOM FAB WCF100860
| Specification | Details |
|---|---|
| Brand | Wehrli Custom Fabrication |
| Part Number | not available |
| UPC | not available |
| GTIN | Not Listed by Manufacturer |
| Shipping Weight | Approximately 4 lbs |
| Package Dimensions | 25 x 6 x 6 inches |
| Shipping Method | UPS / FedEx Ground |
| Prop 65 Warning | This product may contain chemicals known to the State of California to cause cancer or reproductive harm. For more information visit https://www.P65Warnings.ca.gov |
