The HPS Black Silicone Radiator + Heater Hose Kit For 03 Subaru Impreza 2.5L Non Turbo is ready to ship today, with the paperwork and specs that back it up.

Inner diameter must match the fitting exactly, since eyeballing sizes is how leaks begin. Replace both the upper and lower runs while the system is open.
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Details that matter
- Engine: 2.5L
- Material: Silicone
- Finish: Black
- Category: Hose Kits
- Price: $192.43 with free shipping over $99
- Availability: in stock, dispatched from the USA
Manufacturer specifications
HPS black high temp 3-ply reinforced silicone radiator and heater hose kit (part number 57-1732-BLK) replaces 2003 Subaru Impreza 2.5L Non Turbo Left Hand Drive stock OEM rubber upper and lower radiator hoses and heater coolant hoses with premium grade high-heat resistance material which meets or exceeds OE specifications (Maximum temperature rating: 350F). Compared to the local auto parts store universal hoses, HPS silicone radiator and heater hose kit has all the correct bends and curves for a perfect fitment. HPS silicone coolant hose kit includes 100% stainless steel non-perforated embossed hose clamps for easy installation, which do not cut thru the silicone hoses.
HPS silicone hoses can prevent and fix the coolant leaking and engine over heating problem caused by cracked, damaged or collapsed OEM rubber coolant hoses. Excellent for extreme ambient and radiant temperature conditions, HPS silicone hoses can withstand the harsh high temperature and high pressure operating conditions of the engine yet still maintaining peak efficiency during daily driving or racing competition. HPS silicone hose kit is backed by HPS Performance Products limited lifetime warranty.
- Made with correct bends and curves for perfect fitment. Vehicle Application: 2003 Subaru Impreza 2.5L Non Turbo Left Hand Drive
- Prevent and fix the coolant leaking and engine over heating problem caused by cracked, damaged or collapsed OEM rubber coolant radiator heater hoses.
- Race proven design with long lasting quality and engineered for extremely high temperature service (Max. 350F) and prolonged exposure to under-hood and coolant heat.
- Includes 100% stainless steel industrial grade embossed hose clamps which would not cut through the silicone hoses.
- HPS silicone hose kit is backed by HPS Performance Products limited lifetime warranty.
Application:
For 2003 Subaru Impreza 2.5L Non Turbo
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 & 1 Set Heater 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:
- 57-1732-BLK, 57-1732, 571732BLK
Our team checks doubtful orders by hand, so share your vehicle details and we will verify this listing against manufacturer data.
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Fast dispatch matters when a vehicle is off the road, which is why we prioritize same day picking.
When you want a second opinion that is not a parts store, read the fuel economy maintenance guidance.
Buyer questions
How do I confirm this fits?
Our parts team confirms fitment before the box is sealed. Contact us with your vehicle details and we will settle it in advance.
What are the shipping times?
We ship from a USA warehouse with quick dispatch, and delivery estimates appear at checkout once you enter your address.
What is the return policy?
Contact support before removing or returning anything, so the right process starts on the first message and nothing is voided by accident.
What quality checks does this get?
Lines and fittings are checked for pressure rating, inner diameter and ply count before shipping.
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