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OBX 100% Silicone Radiator Hose Kit
2002-2006 Acura RSX Base / Type-S | 2-Piece Kit | Red
This OBX RH10R 2-piece silicone radiator hose kit is designed for 2002-2006 Acura RSX Base and Type-S applications represented in the vehicle compatibility table.
The kit includes the upper radiator hose and lower radiator hose and is manufactured from 100% pure silicone with multi-layer nylon reinforcement for automotive engine-cooling service. The molded construction provides a durable performance replacement for aging factory rubber radiator hoses while adding a clean glossy-red engine-bay appearance.
Item Specifics
- Vehicle Application: 2002-2006 Acura RSX Base and Type-S applications shown in compatibility
- Engines: 2.0L K20A3 / K20A2 / K20Z1 DOHC
- Items Included: Upper Radiator Hose and Lower Radiator Hose
- Number of Pieces: 2
- Material: 100% Pure Silicone
- Reinforcement: Multi-Layer Nylon Wrap
- Design: Molded vehicle-specific radiator hose construction
- Color: Red
- Finish: Glossy
- Temperature Range: -165°F to 350°F
- Maximum Temperature Rating: 350°F
- Manufacturer Part Number: RH10R
100% Silicone Performance Construction
- Manufactured from 100% pure silicone
- Reinforced with a multi-layer nylon wrap
- Rated for temperatures from -165°F to 350°F
- Designed to withstand elevated cooling-system heat and pressure
- Reinforced construction provides strength and dimensional stability
- Durable performance replacement for aging factory rubber hoses
- Glossy finish provides a clean, upgraded engine-bay appearance
- Molded construction follows the required hose routing for the confirmed application
- Suitable for automotive engine-coolant service
Actual Hose Measurement Reference
A photographed RH10R hose end was physically measured from our inventory at approximately 29.93 mm inside diameter and 38.02 mm outside diameter.
These measurements apply to the specific photographed connection point and should not be interpreted as one uniform diameter for every section or every connection end of the molded hoses. Please review the measurement photo in the listing gallery for the actual digital-caliper readings.
How Wall Thickness Is Calculated: Approximate hose wall thickness is calculated using: (Outside Diameter - Inside Diameter) ÷ 2. Using the photographed RH10R measurements: (38.02 mm OD - 29.93 mm ID) ÷ 2 = approximately 4.05 mm wall thickness per side. The difference between outside diameter and inside diameter includes both sides of the hose wall, so that total difference must be divided by two to determine approximate wall thickness per side. Important Installation & Clamp Guidance
For best results, install each hose over clean, reasonably smooth fittings. Remove old coolant residue, corrosion, scale, and debris, then fully seat the hose before installing the clamp.
Position the clamp correctly behind the fitting\'s raised retaining bead. Properly sized OEM-style spring or constant-tension clamps are recommended when they remain serviceable and the application originally used them.
When using worm-drive clamps, use properly sized, smooth-lined or silicone-safe clamps whenever possible. Tighten only enough to create a secure, even seal. Silicone hose should be clamped securely, but it should not be crushed, pinched, cut into, or visibly deformed.
Dry-fit all hoses before final tightening. Verify that each hose is properly routed without being twisted, stretched, kinked, or allowed to rub against nearby components.
After filling and bleeding the cooling system, bring the engine to operating temperature and inspect all connections. Allow the engine to cool completely, then reinspect hose seating, clamp positioning, and any signs of seepage. Adjust clamp tension only if necessary.
Do not repeatedly overtighten a clamp in an attempt to chase a small leak. Excessive pressure can deform the silicone and may make sealing worse. There is no single universal torque specification for every hose and clamp combination; follow the clamp manufacturer\'s specification when one is available.
If seepage continues, inspect the fitting condition and contact us with clear close-up and wider installed photos so we can help identify where the coolant is originating.
Vehicle Compatibility
Confirmed Factory Application:
2002-2006 Acura RSX Base and Type-S with the applicable factory 2.0L engine and cooling-system configurations represented in the vehicle compatibility table.
Confirmed Engine Applications:
Base: K20A3 2.0L DOHC
2002-2004 Type-S: K20A2 2.0L DOHC
2005-2006 Type-S: K20Z1 2.0L DOHC
Transmission Compatibility:
Confirmed factory applications include RSX Base automatic and manual configurations and Type-S 6-speed manual configurations represented in the compatibility table.
Included Hose Functions:
RH10-1 Upper Radiator Hose and RH10-2 Lower Radiator Hose.
Upper Radiator Hose Routing:
Engine coolant outlet ↔ upper radiator connection.
Lower Radiator Hose Routing:
Thermostat housing ↔ lower radiator connection.
OE/OEM Reference Numbers:
Upper Radiator Hose: 19501-PND-000
Lower Radiator Hose: 19502-PND-000
Known Exclusions:
This listing is intended for the confirmed factory Acura RSX applications shown above. It is not being represented as a direct factory replacement for Honda Civic Si EP3 applications, other Honda/Acura chassis, or K-series engine-swap vehicles solely because they use a related engine family.
Modified Vehicles:
Engine swaps, aftermarket radiators, modified coolant outlets, custom cooling-system routing, and other non-factory components can affect hose fitment. Compare the hose shapes, routing, and photographed measurements before ordering for a modified vehicle.
Fitment Note - Buyer Responsibility: Please verify that your vehicle\'s year, make, model, engine, trim, and hose routing match this listing before purchase. Compare the listing photos, hose shapes, connection locations, and provided measurements with the hoses currently installed on your vehicle. Engine swaps, aftermarket radiators, modified cooling systems, and previous component changes can affect fitment even when the original vehicle application is listed. If you are unsure about compatibility, please message us before ordering. We will be happy to review the available information with you. Kuku Inspected & Prepared
Kuku Performance physically handles and inspects our inventory before shipment. This RH10R kit has been photographed and measured so buyers can compare the actual hose shapes and connection dimensions before ordering.
Please review the complete listing photo gallery before purchase, especially if your vehicle has an engine swap, aftermarket radiator, modified cooling system, or other non-factory components.
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We ship fast and we ship carefully.
- Orders are inspected, packaged, and ship same day or next business morning.
- Orders placed after 5:00 PM Central ship the following business day.
- Orders placed Friday after 1:00 PM Central are packaged and ready, with carrier pickup on Monday.
- Tracking uploads automatically as soon as your order ships.
- We ship via FedEx, UPS, or USPS depending on size and destination.
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If there is any issue at all, please contact us first. We respond promptly and handle issues directly.
Details & Notes
- Monitor settings and lighting may affect color appearance.
- Hardware/accessories are included only if shown or stated.
- Please verify measurements, specifications, and fitment before purchasing.
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