The HPS Black Ancillary Hose Kit (Bypass Coolant Hose) For 90-93 Mazda Miata 1.6L (NA6) you are looking at ships from our own USA shelves, not a drop ship queue.

Silicone tolerates far more heat than standard rubber and stays flexible for many years. Replace both the upper and lower runs while the system is open.
Buyers comparing the hps black ancillary hose kit will find the specification detail on this page rather than in a catalog footnote.
The hps black ancillary hose kit listed here is checked against your vehicle before dispatch.
Every hps black ancillary hose kit order goes through the same fitment review.
Ordering the hps black ancillary hose kit takes a minute and the confirmation reaches you straight away.
Our team knows the hps black ancillary hose kit well, so ask if anything about the specification is unclear.
Stock of the hps black ancillary hose kit is live on this page rather than estimated.
Part details
- Engine: 1.6L
- Finish: Black
- Category: Hose Kits
- Price: $80.28 with free shipping over $99
- Availability: in stock, dispatched from the USA
Manufacturer specifications
Your vehicle’s coolant hoses play a crucial role in the cooling system. Over time, these rubber hoses are exposed to high temperatures, engine heat, and chemicals contribute to the aging process and lead them to develop cracks, leaks, or become soft and mushy. The HPS Silicone Ancillary Bypass Coolant Hose Kit is designed to deliver ultimate durability and resistance to wear and tear for your thermostat bypass, throttle body, air control valve, and oil cooler hoses. These multi-ply reinforced hoses can withstand high temperatures of up to 350F and are less prone to cracking, swelling, or becoming brittle compared to traditional rubber hoses.
In high-performance or racing applications, silicone hoses are often preferred as they are less likely to collapse under suction or burst under pressure, providing better reliability in situations where engine performance is crucial. Engineered using OEM data, these hoses are made to directly fit into your vehicle without the need for any modifications. This kit comes complete with 100% stainless steel hose clamps designed to be safe on silicone hoses and provide a leak-free seal.
- Material: 3-Ply Reinforced Silicone
- Color: Black
- Upgraded replacement for ruptured or failing rubber OEM ancillary bypass coolant hoses.
- Engineered to withstand harsh high temperature and high pressure operating conditions. Max. temperature rating: 350F (177C).
- Includes HPS 100% stainless steel industrial grade embossed hose clamps which will not damage or cut through silicone hoses.
- Made with multi-ply polyester reinforced silicone and designed for exact vehicle fitment.
- Replaces OEM Part Numbers: B61P-13-681B, B61P-13-682A, B61P-13-691A, B61P-15-261A.
Application:
For 1990-1993 Mazda Miata 1.6L (NA6)
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 Bypass Coolant 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:
- 57-2155-BLK, 572155BLK, B61P-13-681B, B61P-13-682A, B61P-13-691A, B61P-15-261A
Ask before you order and the only surprise on installation day is how smoothly it goes.
Continue browsing: Hoses & Fittings · HPS Black Ancillary Hose Kit (Bypass Coolant Hose) For 01-05 Mazda Miata 1.8L Non Turbo (NB2) · HPS Red Silicone Radiator Hose Kit For 99-01 Jeep Cherokee 4.0L (XJ) Right Hand Drive · full catalog
Every parcel carries tracking that updates with each carrier scan until it reaches your door.
For safety and service guidance from outside the aftermarket, see the fuel economy maintenance guidance.
Questions we get about this part
Can you check fitment before I order?
We verify every doubtful order by hand. Give us the year, make, model and engine option and we will confirm compatibility in one reply.
Do you ship the same day?
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 is the return policy?
Parts are covered against defects for the period stated on this page, and non defect returns follow our standard returns window.
Is the part inspected before dispatch?
Lines and fittings are checked for pressure rating, inner diameter and ply count before shipping.

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