Here is the HPS Red Silicone Radiator Hose Coolant Kit For 11-21 Jeep Grand Cherokee 3.6L (WK2), listed with the specifications that actually decide whether it fits.

Inner diameter must match the fitting exactly, since eyeballing sizes is how leaks begin. Re check clamp torque after the first few heat cycles.
Buyers comparing the hps red silicone radiator hose coolant will find the specification detail on this page rather than in a catalog footnote.
The hps red silicone radiator hose coolant listed here is checked against your vehicle before dispatch.
Every hps red silicone radiator hose coolant order goes through the same fitment review.
Ordering the hps red silicone radiator hose coolant takes a minute and the confirmation reaches you straight away.
Our team knows the hps red silicone radiator hose coolant well, so ask if anything about the specification is unclear.
Stock of the hps red silicone radiator hose coolant is live on this page rather than estimated.
Key details
- Engine: 3.6L
- Material: Silicone
- Finish: Red
- Category: Hose Kits
- Price: $179.55 with free shipping over $99
- Availability: in stock, dispatched from the USA
Manufacturer specifications
This HPS High Temp 3-ply Reinforced Silicone Radiator Coolant Hose Kit is designed to replace stock OEM rubber upper and lower radiator hoses which weaken and fail over time. With premium quality silicone and race inspired design, this coolant hose kit can withstand the harsh, high temperature and high pressure operating conditions under the hood through a wide range of driving conditions.
HPS silicone hose kits have all the correct bends and dimensions to perfectly fit as replacements for OEM rubber coolant hoses. Compared to the universal hoses from the local auto store, HPS silicone hose kits are much easier to work with. Maximum temperature rating: 350 degrees Fahrenheit. 100% stainless steel embossed hose clamps are included for easy installation.
- Material: 3-Ply Reinforced Silicone
- Color: Red
- Ideal replacement and durable upgrade for OEM rubber upper and lower radiator hoses which weaken and fail over time.
- Withstands harsh high temperature and high pressure operating conditions from stop-and-go traffic to desert off-roading. Max. temperature rating: 350F (177C).
- Includes HPS 100% stainless steel industrial grade embossed hose clamps which will not cut through silicone hoses.
- Engineered to ensure long lasting quality over stock rubber hoses.
- Compatible with OEM part numbers 55038121AD, 55038022AB.
Application:
For 2011-2021 Jeep Grand Cherokee 3.6L (WK2)
Remark:
Installation: Silicone hose water permeation rate is 10 to 15 times greater than standard EPDM rubber hose. Checking water level regularly is highly recommended when silicone coolant hoses are used in a daily driving vehicle.
Product Content:
- 1 Set x Radiator Hose Kit
Hardware if Any is Shown in the Picture Above
The product does not come with manual/instruction, Professional Install Recommended
Cross Reference Number:
- 57-2128-RED, 55038121AD, 55038022AB, 57-2128
Every order gets a fitment review before dispatch, and anything doubtful gets a message rather than a shipment.
Related listings: Hoses & Fittings · HPS Black Silicone Heater Hose Kit For 99-01 Jeep Cherokee 4.0L (XJ) Right Hand Drive · HPS Blue 3-Ply Reinforced Silicone Breather Hose Kit For 95-98 Nissan Skyline GTR RB26DETT Twin Turbo (R33) · full catalog
You get honest delivery estimates rather than optimistic ones, quoted live for your address.
Independent information on this topic lives at the NHTSA vehicle safety hub.
Quick answers
How do I know this is the right part?
Send your VIN or your year, make and model and our fitment desk confirms the part against manufacturer data before it ships. The check is free and usually answered the same business day.
Do you ship the same day?
Your tracking link arrives by email at label creation and stays live until delivery, so you can follow the parcel the whole way.
How do returns work here?
Report any transit damage with a photo and we will send a replacement or refund you. We handle the carrier claim ourselves.
How do you protect it in transit?
We verify diameter and reinforcement specification on every hose order.
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