Consider the HPS Blue Silicone w/Coil Insert Radiator Hose Coolant Kit For 99-04 Jeep Grand Cherokee 4.0L I6 (WJ) sourced: we stock it, verify it and send it out fast.

Silicone tolerates far more heat than standard rubber and stays flexible for many years. Use constant tension or lined clamps so the hose surface survives heat cycles.
Every coil insert radiator hose coolant order goes through the same fitment review.
Ordering the coil insert radiator hose coolant takes a minute and the confirmation reaches you straight away.
Our team knows the coil insert radiator hose coolant well, so ask if anything about the specification is unclear.
Stock of the coil insert radiator hose coolant is live on this page rather than estimated.
Shops order the coil insert radiator hose coolant from us in volume because the data on the page is accurate.
If your build is unusual, tell us and we will confirm the coil insert radiator hose coolant against it.
The coil insert radiator hose coolant ships protected, because a damaged part helps nobody.
Part details
- Engine: 4.0L I6
- Material: Silicone
- Finish: Blue
- Category: Hose Kits
- Price: $161.60 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 performance 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. The lower radiator hose features a stainless steel coil insert to prevent collapsing from negative pressure, a common issue for these vehicles.
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 / Stainless Steel Coil Insert
- Color: Blue
- 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 that range from daily driving to competition off-roading. Max. temperature rating: 350F (177C).
- Includes HPS 100% stainless steel industrial grade embossed hose clamps which will not cut through silicone hoses.
- Lower radiator hose features a stainless steel coil insert to prevent collapse under negative pressure.
- Compatible with OEM part numbers 52079401AB, 52079406AC.
Application:
For 1999-2004 Jeep Grand Cherokee 4.0L I6 (WJ)
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:
- 57-2129-BLUE, 52079401AB, 52079406AC, 57-2129
Not sure it matches your vehicle? Send your VIN or your year, make and model and our fitment desk will confirm before you order.
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Our warehouse team packs the way they would want their own parts to arrive.
Further reading from a neutral source: the fuel economy maintenance guidance.
Common questions
What do you need to verify fitment?
Our parts team confirms fitment before the box is sealed. Contact us with your vehicle details and we will settle it in advance.
When will my order dispatch?
Orders placed before early afternoon on a business day usually leave our USA warehouse the same day, and tracking is emailed when the label is created.
What happens if it arrives damaged?
Contact support before removing or returning anything, so the right process starts on the first message and nothing is voided by accident.
How do you protect it in transit?
Lines and fittings are checked for pressure rating, inner diameter and ply count before shipping.
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