Cummins
Shop All
SKU #: DC-88549
MPN #: 88549
Dayco Branched Radiator Hose 11-14 GM 6.6L Duramax LML 2500HD/3500HD
Description
Ever hit the highway towing a full load and feel your diesel engine start to heat up? The Dayco Radiator Hose keeps coolant flowing strong, so your engine stays cool and responsive no matter the job. High-strength EPDM rubber resists heat, road debris, and wear, giving your truck the durability it needs under heavy loads.
This tough radiator hose moves coolant efficiently through every bend and turn, keeping your Silverado or Sierra 2500/3500 HD performing like new. A simple upgrade that keeps your diesel running strong, torque steady, and engine cool under load.
Enter your zip and we'll see if installation is available.
- Request quotes from local installers at checkout
- Compare options and choose the best fit for your install
About WrenchConnected
WrenchConnected is an independent installation marketplace operating in partnership with Diesel Power Products.
How it works
After checkout, we route your vehicle info and part SKU to verified installation shops near you. Local installers review the job and submit competitive bids; you pick the shop you want based on price, reviews, and availability. Your name and email stay private until you select an installer.
Pricing
You pay for the bid from your preferred shop. The full amount is shown before you confirm — installers cannot add charges without your written consent. Payments are processed securely by Stripe.
Your privacy
During bidding, shops see only your service ZIP code, vehicle year/make/model, and the part SKU — not your name, email, or address. Only the shop you select receives your contact details after payment. We never sell your personal information.
More detail at wrenchconnected.com.
SPECIFICATIONS:
FEATURES & BENEFITS:
- Small Inside Diameter: 11/16 in (0.69)
- Large Inside Diameter: 2 3/8 in (2.38)
- Total Hose Length: 53 7/8 in
FEATURES & BENEFITS:
- Direct replacement for 2011–2014 Chevrolet and GMC 2500/3500 HD trucks
- Keeps engine coolant flowing efficiently to prevent overheating
- Helps your diesel engine stay cool under heavy loads
- Supports reliable engine performance and responsiveness
- Durable design helps reduce wear and tear in the cooling system
- Simple upgrade that protects your engine during daily driving or towing
About Dayco
Dayco is a leading supplier to dozens of O.E. manufacturers and they're proud to utilize their expertise to develop and launch products for the aftermarket. From cars and trucks to snowmobiles and excavators, their quality belts, hoses, and related parts enhance vehicle performance and make installation faster and easier for today’s repair professionals.
Blog
June 12, 2026
The diesel particulate filter (DPF) on your Cummins engine traps soot before it leaves the tailpipe. Over...
Read MoreCummins DPF Cleaning: Signs, Methods & Tips
June 12, 2026
P2509 flags when your Cummins ECM isn't seeing stable voltage coming from the battery and charging system....
Read MoreP2509 Cummins Code: Causes, Symptoms & Fixes
June 10, 2026
It starts small. Maybe the truck is a little slower to spool than usual. Maybe it sounds...
Read MoreHow to Find a Boost Leak Without Special Tools
June 05, 2026
Your exhaust system moves spent gases out of the engine and away from the cab. The muffler...
Read MoreResonator vs Muffler: Key Differences Explained