Looking for the HPS Black Silicone w/Coil Insert Radiator Hose Coolant Kit For 99-04 Jeep Grand Cherokee 4.0L I6 (WJ)? It is on the shelf here, checked and ready to ship.

Reinforcement ply count determines burst strength, which matters most on boosted applications. Keep petroleum away from standard silicone unless the hose is lined for it.
The coil insert radiator hose coolant listed here is checked against your vehicle before dispatch.
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.
Part details
- Engine: 4.0L I6
- Material: Silicone
- Finish: Black
- 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: Black
- 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-BLK, 52079401AB, 52079406AC, 57-2129
Give us the VIN and we will check trim, engine option and drive type, the three details that break fitment.
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We ship fast from our own shelves, and tracking reaches your inbox as soon as the carrier receives the parcel.
For safety and service guidance from outside the aftermarket, see the NHTSA vehicle safety hub.
Frequently asked questions
What do you need to verify fitment?
Trim level, engine option and drive type decide most fitment questions. Send those three details or the VIN and we will check them for you.
How fast does this ship?
Most orders dispatch within one business day. You receive tracking by email the moment the parcel is handed to the carrier.
Can I return this part?
A straightforward returns window applies from delivery. Keep the original packaging until you have test fitted the part and contact support for a fast exchange or refund.
What happens before my order ships?
Lines and fittings are checked for pressure rating, inner diameter and ply count before shipping.
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